Keitaro
Keitaro Ado, Kyoto-Shi JP
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20090040953 | Radio Communication System Carrying Out Transmission and Reception of Multicarrier Signal, Transmission Terminal, and Reception Terminal - A radio communication system includes a transmission terminal and a reception terminal. The transmission terminal divides and outputs transmission data, modulates the output data to a plurality of subcarriers, converts the modulated data to a temporal waveform of a multicarrier signal, and copies divided transmission data a predetermined number of times such that the number of divided transmission data, subsequent to being copied the predetermined number of times, is equal to the number corresponding to the plurality of subcarriers. | 02-12-2009 |
Keitaro Endo, Miyagi JP
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20090039337 | MEMORY ELEMENT AND MEMORY DEVICE - A memory element having a storage layer containing an ion source layer between a first electrode and a second electrode is provided. The memory element stores information by changing an electrical characteristic of the storage layer, wherein at least Zr is added to the ion source layer as a metal element together with an ion conducting material. | 02-12-2009 |
Keitaro Fujii, Chiyoda-Ku, Tokyo JP
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20150340703 | ELECTRODE MATERIAL, MEMBRANE-ELECTRODE ASSEMBLY, FUEL CELL STACK, AND METHOD FOR MANUFACTURING ELECTRODE MATERIAL - An electrode material according to one embodiment includes an electrode catalyst, which includes a conductive support supporting an active catalyst, and a porous inorganic material partially coating the electrode catalyst. The pore surfaces of the porous inorganic material are modified by a basic functional group. Mainly, an electrolyte (ionomer) having proton conductivity is mixed into the electrode material. | 11-26-2015 |
Keitaro Harada, Yamagata JP
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20090026073 | SPUTTERING SYSTEM - A plurality of magnets are rotatably supported and when a ratio between revolution angle and rotation angle per unit time is set to 1:R, R is set to a value which is not less than 1 and not more than 5, and is not a common divisor of 360, so that the time variation of regions where a magnetic field (line of magnetic force) generated by the each magnet is orthogonal to an electric field is prevented from becoming monotonous. Further, the respective magnets are arranged to make the distances between the center of rotation and the center of revolution of the respective magnets different from each other, so that the regions where the magnetic field (line of magnetic force) generated by the each magnet is orthogonal to the electric field are dispersed in the radial direction of a target. | 01-29-2009 |
20090206224 | Device-Positioning Pedestal and Handler Having the Device-Positioning Pedestal - A device-positioning pedestal capable of positioning devices of different sizes. The device-positioning pedestal comprises a plurality of guide members corresponding to the sides of the device and coming in contact with the sides of the device to position the device, at least one guide member includes a slide mechanism that supports the guide member so as to slide relative to the device-positioning pedestal member and a fixing mechanism that fixes the guide members at desired positions. The guide members are set to be adapted to the size of the device by the guide member-adjusting means separate from the device-positioning pedestal. The guide member-adjusting means adjust the position of the guide members based on the size of the device measured by device size-measuring means separate from the guide member-adjusting means or based on the data of data-recording means attached to the device-positioning pedestal. | 08-20-2009 |
20110049286 | WIRE BOBBIN HOLDER OF BOBBIN CASSETTE IN WIRING APPARATUS - When current collecting wires are laid in parallel with each other on a solar cell on which a photosensitive film is formed, a wire tension adjusting mechanism is provided which includes a bobbin holder shaft pivotally held on the side of a frame in a bobbin cassette in a wiring apparatus and a wire bobbin is detachably fixed on the bobbin holder shaft. The wire tension adjusting mechanism further includes a pre-load means for adjusting the torque of the bobbin holder shaft and the tension of each current collecting wire to be drawn out from the wire bobbin held by the bobbin shaft is adjusted. | 03-03-2011 |
Keitaro Harada, Yamagata-Shi JP
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20130280855 | METHOD FOR PRODUCING COMPOUND HAVING CHALCOPYRITE STRUCTURE - To obtain high-quality chalcopyrite particles having a small particle size using a relatively inexpensive raw material in a simple and easy process in which complicated equipment (such as vacuum equipment) is not necessary. Provided is a method for producing a compound having a chalcopyrite structure represented by a compositional formula: ABC | 10-24-2013 |
Keitaro Hashimoto, Tokyo JP
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20120243708 | Modulation of Audio Signals in a Parametric Speaker - Methods and systems for amplitude modulation in a parametric speaker system are provided that perform truncated double sideband (TDSB) frequency modulation of audio signal in which most of the processing is performed in the frequency domain, thus permitting use of fast processing techniques for amplitude modulation (AM) and filtering and reducing computation cost over time domain processing. A maximum envelope value of the time domain audio signal may be to the carrier signal in the frequency domain that avoids emitting the carrier signal when the input signal level is low or mute. The application of the envelope value may be smoothed to reduce discontinuity at input block boundaries. | 09-27-2012 |
Keitaro Hidani, Osaka-Shi JP
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20150300152 | EXCAVATION STATUS MONITORING SYSTEM FOR TUNNELING MACHINE - An excavation status monitoring system for a tunneling machine that includes a detecting portion mounted on a cutter head of the tunneling machine, including an accelerometer that detects a vibration or an acoustic sensor that detects a sound wave and a sound output portion that outputs a signal detected by the detecting portion as sound. | 10-22-2015 |
Keitaro Ishida, Gunma JP
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20090049417 | METHOD OF DESIGNING A CIRCUIT FOR OPTIMIZING OUTPUT BIT LENGTH AND INTEGRATED CIRCUIT THEREFOR - In a circuit designing method for arithmetic elements to be employed in digital signal processing, a program is produced so that a directive is added to a target arithmetic operation which provides an overflow determination about desired digital signal processing. On the basis of this program, behavioral synthesis is performed. By adding an overflow detector to the target arithmetic operation, an RTL-description circuit is produced. The operation verification of the RTL-description circuit is performed to obtain the detection results of the overflow detector. When the RTL-description circuit is again produced on the basis of the operation verification results, the output bit length of the target arithmetic operation is optimized on the basis of the overflow detection results so that overflow is suppressed, whereby an optimized RTL-description circuit can be produced. | 02-19-2009 |
Keitaro Ishikawa, Tokyo JP
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20140020872 | AIRCRAFT/SPACECRAFT FLUID COOLING SYSTEM AND AIRCRAFT/SPACECRAFT FLUID COOLING METHOD - An aircraft/spacecraft fluid cooling system and an aircraft/spacecraft fluid cooling method in which a fluid in a pipe installed in aircraft or spacecraft can be cooled efficiently so that the amount of fluid required for cooling the fluid can be reduced. A fluid cooling system includes a feed line that feeds a fluid from a storage tank to a pump, and a cooling section that expands a propellant having traveled through the pump, feeds the propellant to the outer periphery of the feed line so as to cool the propellant in the feed line, and discharges the expanded propellant outside. | 01-23-2014 |
Keitaro Karoishi, Chiba-Shi JP
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20120212557 | THERMAL HEAD AND METHOD OF MANUFACTURING THE SAME, AND PRINTER - Adopted is a thermal head, including: a support substrate including a concave portion formed in a front surface thereof; an upper substrate, which is bonded in a stacked state to the front surface of the support substrate and includes a convex portion formed at a position corresponding to the concave portion; a heating resistor provided on a front surface of the upper substrate at a position straddling the convex portion; and a pair of electrodes provided on both sides of the heating resistor, in which at least one of the pair of electrodes include: a thin portion, which is connected to the heating resistor at a distal end surface of the convex portion in a region corresponding to the concave portion; and a thick portion, which is connected to the heating resistor and is formed thicker than the thin portion. | 08-23-2012 |
Keitaro Kawai, Hamamatsu-Shi, Shizuoka JP
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20150336155 | Method for forming a pressed component, method for manufacturing a pressed component, and die apparatus for forming a pressed component - The present invention provides a method for forming a pressed metal component, a method for manufacturing such a pressed component, and a die apparatus for forming such a pressed component which decrease the size and the degree of complexity of equipment used for forming a pressed metal component having a plate-shaped base portion and a tubular boss portion extending from the base portion and allow formation of the boss portion in a wide variety of shapes. A piercing die | 11-26-2015 |
Keitaro Kawamura, Yamagata JP
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20100243825 | TENSION BALANCER - A tension balancer which includes an axis body including a latch part, a column shaped main body including a bottom part which has at least two first through holes arranged at equal intervals in a concentric circle from the center, and an open upper part, a spring base housed within the Main body and having an aperture for joining an end of the axis body to the center, and at least two second holes arranged at equal intervals in a concentric circle from the center, an upper lid having an aperture for pushing through the main body of the axis body to the center, and at last two second through holes arranged at equal intervals in a concentric circle from the center, the upper lid being screwed to the main body by a bold and nut which passes through the first, second and third through holes, and at least two or more spring unit groups sandwiched between the spring base which is housed within the main body and the upper lid. | 09-30-2010 |
Keitaro Kikuchi, Niigata-Ken JP
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20100079913 | MAGNETIC DISK DEVICE INCLUDES A SENSOR IN A CASE - A magnetic disk device includes a magnetic head assembly, which includes magnetic heads, support plates, and a flexible wiring substrate that are integrally formed. The magnetic heads include heating elements for making head element parts protrude toward magnetic disks by thermal expansion, the support plate supports the magnetic head, the flexible wiring substrate is provided along the support plate and electrically connects the magnetic heads to a circuit system, and the magnetic head assembly and the magnetic disks are assembled in a case. The magnetic disk device includes a sensor and a floating distance control circuit. The sensor detects at least one of atmospheric pressure, temperature, and humidity in the case. The floating distance control circuit increases or decreases current supplied to the heating element on the basis of the output of the sensor and controls the floating distance of the magnetic head so that the floating distance is constant. While being received in a package made of high temperature co-fired ceramic, the sensor is mounted on a circuit mounting surface of the flexible wiring substrate in the case. | 04-01-2010 |
Keitaro Kokoishi, Chiba-Shi JP
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20100140215 | Thermal head manufacturing method - To keep printing quality uniform and to improve productivity, while maintaining a heating efficiency and a strength against an external load, provided is a thermal head manufacturing method including: a concave portion forming step of forming a concave portion on one face of a supporting substrate; an upper substrate forming step of forming an upper substrate in which an etching layer and a non-etching layer are arranged in layers in a substrate thickness direction, the etching layer being etched at a predetermined etching rate, the non-etching layer being lower in etching rate than the etching layer; a bonding step of bonding the one face of the supporting substrate in which the concave portion has been formed in the concave portion forming step to a surface on a side of the non-etching layer of the upper substrate; a thinning step of etching the etching layer of the upper substrate which has been bonded to the supporting substrate in the bonding step; and a heating resistor forming step of forming a heating resistor across from the concave portion of the supporting substrate on the upper substrate which has been thinned in the thinning step. | 06-10-2010 |
Keitaro Koroishi, Chiba-Shi, Chiba JP
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20130335499 | THERMAL HEAD MANUFACTURING METHOD, THERMAL HEAD, AND PRINTER - A method of manufacturing a thermal head, including: forming a concave being, which is open on one surface of a support-substrate made of an alumina material; forming an intermediate-layer made of a glass paste by printing the glass paste made of a first-glass-material on the one surface of the support-substrate and baking the glass paste; bonding an upper-substrate to the one surface of the support-substrate by arranging the upper-substrate on the intermediate-layer formed on the one surface of the support-substrate in a laminated state and heating the upper-substrate at a temperature of an annealing point thereof or higher and a softening point thereof or lower, the upper-substrate being made of a second-glass-material having a softening point lower than a softening point of the first-glass-material; and forming a heat generating resistor on a surface of the upper-substrate bonded to the support-substrate at a position opposed to the concave portion. | 12-19-2013 |
Keitaro Koroishi, Chiba JP
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20130335500 | THERMAL HEAD, PRINTER, AND METHOD OF MANUFACTURING THERMAL HEAD - A thermal head comprises: a support substrate; an upper substrate arranged on the support substrate on one surface side thereof in a laminated state; an intermediate layer which is arranged between the upper substrate and the support substrate to bond the upper substrate and the support substrate to each other, and which has one of a through hole and a concave portion to form a cavity portion between the upper substrate and the support substrate; and a heat generating resistor formed on a surface of the upper substrate on a side opposite to the support substrate at a position opposed to the cavity portion, wherein the upper substrate has a melting point lower than a melting point of the intermediate layer. | 12-19-2013 |
Keitaro Matsui, Fukushima JP
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20090191462 | ANODE ACTIVE MATERIAL, ANODE, BATTERY, AND METHOD OF MANUFACTURING ANODE - A battery that has a higher capacity and superior charge and discharge efficiency is provided. The battery includes a cathode, an anode, and an electrolyte. The anode has an anode active material layer provided on an anode current collector, and the anode active material layer contains a spherocrystal graphitized substance of mesophase spherule provided with a fine pore as an anode active material. | 07-30-2009 |
20120082894 | ANODE ACTIVE MATERIAL, SECONDARY BATTERY, ELECTRIC POWER TOOL, ELECTRICAL VEHICLE, AND ELECTRIC POWER STORAGE SYSTEM - A secondary battery includes a cathode, an anode containing an anode active material, and an electrolytic solution. The anode active material contains tin, iron, cobalt, carbon, and titanium as an element. In the anode active material, a carbon content is from 9 mass % to 30 mass % both inclusive, a ratio of cobalt to total of iron and cobalt is from 10 mass % to 80 mass % both inclusive, a ratio of the total of iron and cobalt to total of tin, iron, and cobalt is from 11.3 mass % to 26.3 mass % both inclusive, a titanium content is from 0.5 mass % to 8 mass % both inclusive, and half-width of diffraction peak obtained by X-ray diffraction (peak obtained where diffraction angle of 2θ is from 34 deg to 37 deg both inclusive) is 1 deg or more. | 04-05-2012 |
20120202115 | ANODE ACTIVE MATERIAL, ANODE, BATTERY, AND METHOD OF MANUFACTURING ANODE - A battery that has a higher capacity and superior charge and discharge efficiency is provided. The battery includes a cathode, an anode, and an electrolyte. The anode has an anode active material layer provided on an anode current collector, and the anode active material layer contains a spherocrystal graphitized substance of mesophase spherule provided with a fine pore as an anode active material. | 08-09-2012 |
Keitaro Matsui, Osaka-Shi JP
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20120081618 | LIGHT EMITTING MODULE, ILLUMINATING DEVICE, DISPLAY DEVICE, AND TELEVISION RECEIVING DEVICE - Leg portions ( | 04-05-2012 |
20130100666 | LIGHTING DEVICE AND DISPLAY DEVICE - A lighting device includes LEDs, a reflecting sheet that reflects light emitted from the LEDs, and connectors electrically connected to the LEDs. The reflecting sheet has integrated superposed portions on which the connectors are superposed, and the connector surface on the reflecting sheet side thereof serves as a sheet pressing surface for pressing down the superposed portions of the reflecting sheet. | 04-25-2013 |
Keitaro Mineoka, Toyota-Shi JP
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20150016810 | INFRARED HEATING DEVICE - Infrared heating apparatus irradiates a member to be heated with infrared rays from infrared source to heat the member, and sets heated region of the member to be heated with use of shielding member that restricts transmission of infrared rays. The infrared heating apparatus includes: a pair of holding members each having a plate shape that allow the infrared rays to be transmitted therethrough being disposed to intersect with an irradiation direction of the infrared rays between the infrared source and the member to be heated, and the shielding member being interposed and held between the holding members, and being a metal sheet, metal foil or a metal film, which has a prescribed shape that restricts transmission of the infrared rays, and the holding members being placed on each other to be in close contact with each other while the shielding member is interposed between the holding members. | 01-15-2015 |
Keitaro Miyazawa, Tochigi JP
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20080254360 | Lead and Nonaqueous Electrolyte Battery Including Same - A lead and a nonaqueous electrolyte battery including the lead that is given a non-chromium surface treatment and have excellent resistance to hydrofluoric acid. The lead includes: (1) a metal lead made of nickel, nickel plated copper, or copper; (2) a composite coating layer that is formed on a portion of the surface of the metal lead that is hermetically attached to the package, the composite coating layer being formed by applying a treatment liquid that contains a salt of zirconium, a salt of titanium, or a salt of molybdenum and a resin component containing polyacrylic acid; and (3) an insulator that is arranged outside the composite coating layer and hermetically attached to the package. The nonaqueous electrolyte battery having the lead connected to positive or negative electrode of the nonaqueous electrolyte battery. | 10-16-2008 |
Keitaro Mizoe, Yokohama JP
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20090161515 | OPTICAL DISC APPARATUS AND OPTICAL DISC DISCRIMINATING METHOD - An optical disc apparatus capable of discriminating swiftly and accurately a dual disc from other discs and an optical disc discriminating method, wherein the optical disc apparatus irradiates laser beams having a different wavelength onto the optical disc, detects the reflected light obtained by the irradiation of the laser beams having the individual wavelengths, determines amplitude of an error signal according to the detected results of the individual reflected lights, and discriminates the optical disc based on a ratio of amplitudes of the individual reflected lights. | 06-25-2009 |
Keitaro Mori, Anjo-Shi, Aichi-Ken JP
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20150322867 | AIR INTAKE APPARATUS FOR INTERNAL COMBUSTION ENGINE - This air intake apparatus for an internal combustion engine includes a throttle-side air intake pipe having one end connected to a throttle and another end connected to a surge tank, an external gas inlet provided in at least one of the throttle-side air intake pipe and the surge tank, introducing external gas into at least one of the throttle-side air intake pipe and the surge tank, and a gas distributivity improvement fin provided inside at least one of the throttle-side air intake pipe and the surge tank, which corresponds to the external gas inlet, diffusing the external gas to intake air from the throttle. | 11-12-2015 |
Keitaro Nakanishi, Wako-Shi JP
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20100006069 | VARIABLE STROKE ENGINE - In a variable stroke engine comprising a plurality of links ( | 01-14-2010 |
20100018504 | VARIABLE STROKE ENGINE ASSEMBLY - In a variable stroke engine assembly for a front engine, front wheel drive vehicle, an engine output shaft (OS), a variable stroke control mechanism ( | 01-28-2010 |
Keitaro Nakanishi, Wako JP
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20100050992 | VARIABLE STROKE ENGINE - In a variable stroke internal combustion engine, by determining the relationships of a connecting point (D) between a first link ( | 03-04-2010 |
Keitaro Oka, Fujisawa-Shi JP
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20140167363 | Seal for Rolling Screw, and Rolling Screw - A seal for a rolling screw capable of preventing an unintended contact with the threaded shaft, while maintaining advantages of a lip tilting perpendicularly to the axial direction, and the rolling screw using the seal are provided. In the seal for the rolling screw including: a circular ring part ( | 06-19-2014 |
Keitaro Okamoto, Hyaso JP
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20110132954 | SCRIBING WHEEL AND METHOD FOR SCRIBING BRITTLE MATERIAL SUBSTRATE - A scribing wheel having a long life with little wear at the blade even when used to scribe a substrate that is relatively hard, such as a ceramic substrate, which can create deep vertical cracks if necessary is provided. A number of grooves | 06-09-2011 |
Keitaro Okamoto, Suita City JP
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20110167979 | GROOVE MACHINING TOOL FOR USE WITH A THIN-FILM SOLAR CELL - There is provided a groove machining tool supported in a holder and caused to move together with the holder in relative fashion along a scheduled scribe line over an integrated thin-film solar cell substrate to form a groove. The groove machining tool includes a tool body supported in the holder, and a blade tip part formed in a distal part of the tool body. The blade tip part includes a blade extending along a direction intersecting a direction of movement of the tool, at a first end along the direction of movement of the tool. The blade is tilted backward from the direction of movement of the tool in relation to a direction orthogonal to the direction of movement of the groove tool, as viewed from a bottom face of the blade tip part. | 07-14-2011 |
Keitaro Okasaki, Yokohama JP
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20090113087 | STREAM DATA TRANSFER CONTROL DEVICE - There are provided a stream I/F section | 04-30-2009 |
20090222798 | Information Processing Apparatus - A mobile device includes a memory for storing therein a subroutine management table to manage kinds of existing codes out of native code, first code and second code for a plurality of subroutines contained in content, a virtual machine, a precompile circuit for producing second code from first code and a subroutine management circuit for changing over processing in accordance with the kind of existing code for subroutine called up during execution of content. The subroutine management circuit judges kind of existing code with reference to the subroutine management table when the processing is changed over. | 09-03-2009 |
Keitaro Otozai, Kyoto JP
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20150260242 | IRREVERSIBLE MECHANISM - An irreversible mechanism is provided with an input shaft that receives input of rotational drive force, an output shaft that receives transmission of torque from the input shaft, a ball ramp part that generates radial force when load torque is applied to the output shaft, a brake lining that receives the radial force from the ball ramp part, a brake drum that the brake lining is pressed against when the brake lining receives the radial force from the ball ramp part, and a housing that accommodates the input shaft, the output shaft, the ball ramp part, the brake lining and the brake drum inside. | 09-17-2015 |
Keitaro Otsuka, Yokohama JP
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20110051843 | TRANSMISSION CIRCUIT - A transmission circuit includes: a first switch configured to select one of a first baseband signal and an oscillation signal; a second switch configured to select one of a second baseband signal and the oscillation signal; a first multiplier configured to multiply a first local frequency signal based on the oscillation signal by the signal selected by the first switch; a second multiplier configured to multiply a second local frequency signal based on the oscillation signal by the signal selected by the second switch; an adder configured to add an output from the first multiplier to an output from the second multiplier; and a correction circuit configured to correct one of the first baseband signal and the second baseband signal based on an output from the adder when the first switch and the second switch select the oscillation signal. | 03-03-2011 |
20110188610 | SIGNAL PROCESSING DEVICE, METHOD AND RECEIVING DEVICE - A signal processing device includes: a first correlator that sequentially multiplies a first receive signal including a pattern in a receive signal and a first reference pattern signal including a complex conjugate of a first partial signal of the first receive signal at a sampling timing to generate a first correlation voltage; a second correlator that sequentially multiplies the first receive signal and a second reference pattern signal including a complex conjugate of a second partial signal, which is behind the first partial signal, at a sampling timing to generate a second correlation voltage; and a phase difference generation circuit that generates a first phase difference between the first partial signal and the second partial signal based on a first correlation peak voltage obtained when the first correlation voltage has a peak value and a second correlation peak voltage obtained when the second correlation voltage has a peak value. | 08-04-2011 |
20120140856 | RECEIVING APPARATUS AND RECEIVING METHOD - A receiving apparatus for being viewable of a first broadcast based on a first received signal received using a first frequency band as any one frequency band of a plurality of frequency bands, or being viewable of a second broadcast based on a second received signal received using a second frequency band as all frequency bands other than the first frequency band of the plurality of frequency bands, the receiving apparatus including: a receiving unit which receives a third received signal by using a third frequency band as any one frequency band of a plurality of frequency bands included in the second frequency band when the first broadcast is being viewed; and a control unit which determines whether the second broadcast is viewable or nor based on the third received signal, and switches from viewing of the first broadcast to viewing of the second broadcast. | 06-07-2012 |
20120195328 | TRANSMISSION APPARATUS, TRANSMISSION METHOD, RECEPTION APPARATUS, AND RECEPTION METHOD - A transmission apparatus for converting a transmission data series into frequency-domain, converting the frequency-domain converted signal into time-domain signal, and transmitting the time-domain converted signal, the apparatus including: a preamble pattern generation unit which outputs at least two preamble patterns among second and third preamble patterns, including bit series in which each of bits of a first preamble pattern is continued for n bits (where n is an integer equal to or greater than 2) and for k bits (where k is an integer equal to or greater than 2, and k≠n), and the first preamble pattern; and a transmission unit which transmits the transmission signal including at least two of the preamble patterns output from the preamble pattern generation unit. | 08-02-2012 |
Keitaro Sakamoto, Otsu-Shi JP
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20120115314 | PLASMA PROCESSING APPARATUS AND METHOD OF PRODUCING AMORPHOUS SILICON THIN FILM USING SAME - Disclosed is a plasma processing apparatus, wherein a plasma-generating electrode has a plurality of gas exhaust holes which run through the plasma-generating electrode from the surface facing a substrate held by a substrate-holding mechanism, and reach a gas exhaust chamber; gas-feeding pipes, provided connected to a gas-introducing pipe, have gas-feeding ports for discharging source gas toward the inside of the plurality of gas exhaust holes; and the gas-feeding pipes and the gas-feeding ports are arranged in a manner such that extended lines, representing the direction of the flow of the source gas discharged from the gas-feeding ports, intersect the end surface open regions at the interface of the gas exhaust chamber to the gas exhaust holes. Also disclosed is a method of producing the amorphous silicon thin film using the plasma processing apparatus. | 05-10-2012 |
20120220109 | PLASMA CVD DEVICE AND METHOD OF MANUFACTURING SILICON THIN FILM - A plasma CVD device comprises a vacuum vessel that houses a discharge electrode plate and a ground electrode plate to which is attached a substrate for thin film formation. The plasma CVD device has an earth cover at an interval from and facing the aforementioned discharge electrode plate; the aforementioned discharge electrode plate has gas inlets and exhaust outlets (which expel gas introduced through said gas inlets) that are connected at one end to equipment supplying raw gas for thin film formation and that open at the other end at the bottom face of the aforementioned discharge electrode plate; the aforementioned earth cover has second gas inlets corresponding to the aforementioned gas inlets, and second exhaust outlets corresponding to the aforementioned exhaust outlets. The plasma CVD device has an electric potential control plate disposed at an interval from and facing the aforementioned ground cover. | 08-30-2012 |
Keitaro Sakamoto, Mishima-Shi, Shizuoka JP
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20160024657 | PLASMA CVD DEVICE AND PLASMA CVD METHOD - The present invention relates to a plasma CVD device provided with a vacuum chamber, and a plasma CVD electrode unit and a substrate-holding mechanism inside the vacuum chamber. The plasma CVD electrode unit is provided with an anode, a cathode that faces the anode at a distance, and a first gas supply nozzle for supplying gas so as to pass through the plasma-generation space between the anode and cathode. The substrate-holding mechanism is disposed at a position where the gas passing through the plasma-generation space impinges. The length of the anode in the gas-supply direction and the length of the cathode in the gas-supply direction are both longer than the distance between the anode and the cathode. Thus, a plasma CVD device that makes it possible to increase gas decomposition efficiency and achieve high film deposition rate is provided. | 01-28-2016 |
Keitaro Sakamoto, Mishima-Shi JP
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20140023796 | PLASMA CVD APPARATUS, PLASMA CVD METHOD, REACTIVE SPUTTERING APPARATUS, AND REACTIVE SPUTTERING METHOD - A plasma CVD apparatus comprising a vacuum chamber, and a main roll and a plasma generation electrode in the vacuum chamber, wherein a thin film is formed on a surface of a long substrate which is conveyed along the surface of the main roll is provided. At least one side wall extending in transverse direction of the long substrate is provided on each of the upstream and downstream sides in the machine direction of the long substrate, and the side walls surrounds the film deposition space between the main roll and the plasma generation electrode. The side walls are electrically insulated from the plasma generation electrode. The side wall on either the upstream or the downstream side in the machine direction of the long substrate is provided with at least one raw of gas supply holes formed by gas supply holes aligned in the transverse direction of the long substrate. | 01-23-2014 |
Keitaro Sugawara, Kawagoe JP
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20110013783 | OVERTONE PRODUCTION DEVICE, ACOUSTIC DEVICE, AND OVERTONE PRODUCTION METHOD - When boosting treble, first a signal X(T) of a fundamental tone component which is to be a subject of overtone production is extracted by a fundamental tone extraction filter section | 01-20-2011 |
Keitaro Sugawara, Tokorozawa JP
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20110007904 | ACOUSTIC SIGNAL PROCESSING DEVICE AND ACOUSTIC SIGNAL PROCESSING METHOD - A corrective measurement part of a processing control part | 01-13-2011 |
Keitaro Sugawara, Kawagoe-Shi JP
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20100116122 | HARMONIC SOUND GENERATOR AND A METHOD FOR PRODUCING HARMONIC SOUND - Problems To provide a harmonic sound generator and a method for generating harmonic sound so as to obtain frequency components of non-integer multiples shifted back and forth from the frequencies of odd multiples and even multiples with a simple configuration. | 05-13-2010 |
Keitaro Suzuki, Aiko-Gun JP
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20150151445 | GROOVE-FORMING METHOD, CONTROL DEVICE FOR MACHINE TOOL AND TOOL PATH GENERATING DEVICE - A fluting method for forming a flute in a workpiece while the workpiece is moved relative to a rotating tool by the combination of a rotating feed shaft with other feed shafts, the method comprising a machining process of relatively moving the rotating tool on a tool path that runs along the direction in which the flute extends and machining the workpiece using a rotating tool with a diameter that is smaller than the width of the flute. The machining process changes the relative position of the rotating tool with respect to the workpiece and performs machining multiple times so that the rotating tool makes internal contact with a circle that has the width of the flute being formed in the workpiece as the diameter. | 06-04-2015 |
20150234374 | TOOL PATH-GENERATING METHOD, MACHINE TOOL CONTROL DEVICE AND TOOL PATH-GENERATING DEVICE - A tool path-generating method for computing a tool path to process a workpiece, wherein the tool path for a designated tool when processing using the designated tool is previously established. The tool path-generating method comprises a path-computing process for computing, on the basis of the tool path for the designated tool, the tool path of a substitute tool differing from the designated tool when processing with the substitute tool. The path-computing process computes the portion that ultimately forms the machined surface when the workpiece is processed using the designated tool and sets the tool path for the substitute tool on the basis of the portion that ultimately forms the machined surface. | 08-20-2015 |
20150293522 | MACHINE TOOL CONTROL DEVICE AND MACHINE TOOL - The machine tool control device is provided with a calculation unit for estimating, on the basis of the tool path for machining using a tool and information on the workpiece, the portion of the tool that will form the final machined surface. The control device is provided with a feed rate-setting unit for estimating the fastest moving point, among multiple moving points contained in the portion that will form the final machined surface, for which the relative velocity of the tool with respect to the workpiece will be maximal and setting the feed rates for the machine tool movement shafts so that the relative velocity of the fastest moving point is at or below a previously specified relative velocity. | 10-15-2015 |
Keitaro Takesaki, Chiyoda-Ku, Tokyo JP
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20160141941 | ROTATING ELECTRICAL MACHINE AND METHOD OF MOUNTING ELEMENT WIRE TEMPERATURE MEASUREMENT SENSORS ON ROTATING ELECTRICAL MACHINE - Insulating objects arranged in parallel between adjacent element wire conductors of a plurality of the element wire conductors in a circumferential direction of the rotating electrical machine on each of both sides interposing a dislocating portion of the element wire conductor and linearly extending along the adjacent element wire conductors; a storage space formed between the linear insulating objects arranged in parallel at each of the both sides interposing the dislocating portion; and a temperature detection sensor configured to detect a temperature of the element wire conductors and stored in the storage spaces at each of the both sides interposing the dislocating portion across both sides interposing the dislocating portion are provided, wherein the hardness of the insulating objects is lower than the hardness of the element wire conductors, whereby the types of the rotating electrical machine to which the temperature detection sensor can be applied may be extensively increased. | 05-19-2016 |
Keitaro Tamura, Iwaki-Shi JP
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20130036866 | Cermet and Coated Cermet - A cermet has a first hard phase of a complex carbonitride solid solution, a second hard phase of WC, and a binder phase mainly comprising Co and Ni as main component(s). The first hard phase has a core/rim structure. The core is represented by (Ti | 02-14-2013 |
Keitaro Tamura, Fukushima JP
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20110117368 | Hard Powder, Process for Preparing Hard Powder and Sintered Hard Alloy - A hard powder contains much amount of a complex carbonitride solid solution, which can improve sinterability of a sintered hard alloy and give a uniform structure. The hard powder is a powder containing 90 vol % or more of a complex carbonitride solid solution represented by (Ti | 05-19-2011 |
20120003466 | Cermet and Coated Cermet - A cermet has a hard phase which contains W and nitrogen, and includes at least one selected from a carbide, nitride and carbonitride of a metal having Ti as a main component, and a binder phase having an iron group metal as a main component. A W amount contained in the whole cermet is 5 to 40% by weight, an interfacial phase including a complex carbonitride with a larger W amount than a W amount of the hard phase being present between grains of the hard phase, and when a W amount contained in the interfacial phase based on the whole metal element is represented by Wb (atomic %), and a W amount contained in the hard phase based on the whole metal element is represented by Wh (atomic %), then, an atomic ratio of Wb to Wh (Wb/Wh) is 1.7 or more. The cermet is excellent in fracture resistance and wear resistance. | 01-05-2012 |
20120114960 | Cermet and Coated Cermet - A cermet has a WC first hard phase, a second hard phase including one or more of a carbide, nitride and carbonitride of an element(s) of groups 4, 5 and 6 of the Periodic Table including a titanium element, and a mutual solid solution thereof, and a binder phase. In the cermet, a carbon amount C | 05-10-2012 |
Keitaro Tsuchiya, Takasaki JP
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20150028457 | EPITAXIAL SUBSTRATE, SEMICONDUCTOR DEVICE, AND METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE - The present invention includes: a silicon-based substrate; and an epitaxial growth layer that has a configuration in which first and second nitride semiconductor layers having different lattice constants and thermal expansion coefficients are alternately laminated, and is arranged on the silicon-based substrate so that a film thickness thereof is gradually reduced at an outer edge portion. As a result, there are provided an epitaxial substrate and a semiconductor device in which generation of cracks at the outer edge portion is suppressed, and a method for manufacturing the semiconductor device. | 01-29-2015 |
20150084163 | EPITAXIAL SUBSTRATE, SEMICONDUCTOR DEVICE, AND METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE - The present invention provides an epitaxial substrate including a silicon substrate containing oxygen atoms in concentrations of 4×10 | 03-26-2015 |
20150126018 | METHOD FOR MANUFACTURING NITRIDE SEMICONDUCTOR DEVICE - The invention provides a method for manufacturing a nitride semiconductor device that grows a multilayer film of a III-V group nitride semiconductor in a reaction furnace into which a III group element raw material gas and a V group element raw material gas are introduced, the method including: growing a first nitride semiconductor layer at a first raw material gas flow rate of the V group element raw material gas and a first carrier gas flow rate; and growing a second nitride semiconductor layer at a second raw material gas flow rate of the V group element raw material gas lower than the first raw material gas flow rate and a second carrier gas flow rate higher than the first carrier gas flow rate, wherein the first nitride semiconductor layer and the second nitride semiconductor layer are stacked. | 05-07-2015 |
20160111273 | SEMICONDUCTOR SUBSTRATE, SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SEMICONDUCTOR DEVICE - A semiconductor substrate having a silicon-based substrate, a buffer layer provided on the silicon-based substrate and made of a nitride semiconductor containing boron, and an operation layer formed on the buffer layer, wherein a concentration of boron in the buffer layer gradually decreasing toward a side of the operation layer from a side of the silicon-based substrate. Thereby, the semiconductor substrate in which the buffer layer contains boron sufficient to obtain a dislocation suppression effect and boron is not diffused to the operation layer is provided. | 04-21-2016 |
20160118486 | SEMICONDUCTOR DEVICE - Semiconductor device including: silicon-based substrate; first buffer layer on silicon-based substrate and is formed of first layer containing Al composition and second layer containing less Al than the first layer, the first and second layers being alternately stacked; second buffer layer on the first buffer layer and is formed of third layer containing Al composition and fourth layer containing less Al than the third layer, the third and fourth layers being alternately stacked; and third buffer layer on the second buffer layer and is formed of fifth layer containing Al composition and sixth layer containing less Al than the fifth layer, the fifth and sixth layers being alternately stacked, wherein the second buffer layer contains more Al than the first and third buffer layers. Thus, the semiconductor device leakage can be suppressed while reducing stress which is applied to buffer layer and can improve flatness of active layer upper face. | 04-28-2016 |
20160126099 | SILICON-BASED SUBSTRATE, SEMICONDUCTOR DEVICE, AND METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE - A silicon-based substrate on which a nitride compound semiconductor layer is formed on a front surface thereof, including a first portion provided on the front surface side which has a first impurity concentration and a second portion provided on an inner side of the first portion which has a second impurity concentration higher than the first impurity concentration, wherein the first impurity concentration being 1×10 | 05-05-2016 |
Keitaro Uehara, Machida JP
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20110238817 | Network Monitoring Server And Network Monitoring System - A failure factor can be promptly carved up by effectively prioritizing the ports to which MEPs are assigned in a condition where the maximum number of MEPs is limited. A network monitoring server monitors a network having plural switch devices. The plural switch devices each have a communication confirmation function using transmission and reception of a monitoring frame between ports. An upper limit is set to the number of ports to which maintenance end points (MEPs) are assignable among the respective ports of the plural switch devices. The network monitoring server calculates, for each of the plural switch devices, a monitoring priority corresponding to the probability of failures of a device connected to a network path including the port or the port, and generates data for displaying the calculated monitoring priority of each port in association with each port. | 09-29-2011 |
20120117226 | MONITORING SYSTEM OF COMPUTER AND MONITORING METHOD - There is provided a monitoring system capable of representing relationships of computer resources that virtual servers use in a tree structure and aggregating the performance statistics of the virtual resources sharing physical resources. The monitoring system has: a virtualization module that makes virtual computers operate; and a monitoring module for monitoring the physical computers and components of the virtual computers. The monitoring module designates the physical computer and the components of the virtualizing module as base resources, manages the components of the virtual computers as virtual resources, generates a platform tree by extracting a tree structure from the virtual resources and the components of the base resources for predetermined platforms, generates a service provision tree by extracting a tree structure having the base or virtual resources as starting points, and establishes a reference relationship for the components contained in the platform tree and also contained in the service provision tree. | 05-10-2012 |
20120198446 | Computer System and Control Method Therefor - A hypervisor records error device information in a virtual PCI bridge, and makes error information in a device consistent with error information in a PCI bridge. A computer system includes a CPU, memory, and physical device PCI tree. In the memory, virtual machines capable of mutually independently acting, and a hypervisor that manages the virtual machines are existent. The physical device PCI tree includes physical bridges and devices. The physical bridge has a register in which information specifying the device is recorded. The virtual machine includes a virtual CPU, virtual memory, and virtual device PCI tree. The virtual device tree includes virtual bridges and virtual devices. The virtual bridge has a virtual memory space in which information specifying the virtual device in which an error has occurred is recorded. The hypervisor includes an interrupt handling program that is a virtual bridge modification program which modifies information in the virtual bridge. | 08-02-2012 |
20120246644 | VIRTUAL COMPUTER SYSTEM AND CONTROLLING METHOD OF VIRTUAL COMPUTER - A method of controlling a virtual machine of a computer, the computer comprising: a physical machine comprising an I/O adapter having a physical function that creates a virtual function; a virtualization unit that provides computer resources of the physical machine to the virtual machine; and an OS that is executed on the virtual machine, the virtualization unit creating a virtual machine to which the virtual function is assigned, the virtual machine running the OS thereon, the method comprising: a first step of detecting, by the virtualization unit, a state change of the I/O adapter; a second step of identifying, by the virtualization unit, when a state of the I/O adapter becomes a predetermined state, the virtual machine to which the virtual function is assigned; and a third step of notifying, by the virtualization unit, the OS running on the identified virtual machine of the state of the I/O adapter. | 09-27-2012 |
Keitaro Watanabe, Tokyo JP
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20160136274 | MEDICINAL COMPOSITION FOR PROMOTING SYNTHESIS OF PROTOPORPHYRIN IX - The object of the present invention is to elucidate the resistance mechanism in infections that show resistance to ALA-PDT that uses a single ALA, and to provide a novel treatment method against these infections. The present invention provides a pharmaceutical composition for promoting protoporphyrin IX production in ALA-PDT for treating infection, characterized in that it comprises a substance that promotes the conversion from coproporphyrinogen III to protoporphyrin IX. | 05-19-2016 |
Keitaro Yamamoto, Tokyo JP
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20140375848 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM - An apparatus and a method capable of effectively eliminating flicker are provided. Flicker which occurs in a captured image captured under a lighting environment such as a fluorescent light having a luminance change is effectively eliminated or reduced. A short exposure image and a long exposure image, which are images captured with at least two different exposure periods, are input, a short exposure image row profile having integrated values of a row-by-row signal quantity of the short exposure image and a reference profile having integrated values of a row-by-row signal quantity of the long exposure image are generated, a flicker correction waveform is generated by a division process on the short exposure image row profile by the reference profile or the like, and a corrected image is generated whose flicker components have been eliminated by a process of multiplying pixel values of each of the rows of the short exposure image by a row-by-row coefficient defined by the flicker correction waveform. | 12-25-2014 |
Keitaro Yamamoto, Okayama-Shi JP
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20090105839 | Artificial elbow joint - An artificial elbow joint including a humeral component made of metal and an ulnar component made of resins for replacing an elbow joint. The humeral component of this artificial elbow joint is configured by a substantially cylindrical trochlea and a stem extending from the trochlea that is inserted into the humeral; and the ulnar component is configured by a joint surface member which receives the trochlea of humeral component in a rotatable manner and a stem which extends from the joint surface member and is inserted into the ulna. The stem of the humeral component is curved gently downward overall so as to comply with the lordotic shape of the humeral, and the trochlea is turnable about the centerline of the stem. | 04-23-2009 |
Keitaro Yamashita, Tokyo JP
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20080278459 | Display Device - A display device which can authenticate fingerprint without a fingerprint sensor device and can be prevented from large size or reduced the size. A display device ( | 11-13-2008 |
Keitaro Yamashita, Miao-Li County TW
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20120127215 | DISPLAY DEVICE AND ELECTRONIC DEVICE USING THE SAME - A display device where a memory circuit is installed into each pixel without generating flicker, including a plurality of pixels arranged in a matrix, wherein each pixel has a light-transmissive element controlling the amount of transmissive light in response to a voltage difference between a first electrode and a second electrode, a memory circuit storing the voltage level of the first electrode, and a controller. In the case where the first electrode has a positive voltage level with respect to the second electrode at a refreshing timing, the controller makes the memory circuit store the voltage level of the first electrode, applies a first predetermined voltage to the second electrode to increase the voltage level of the first electrode by the first predetermined voltage, and discharges the first electrode so that the first electrode has a negative voltage level with respect to the second electrode. | 05-24-2012 |
20140043304 | SHIFT REGISTERS, DISPLAY PANELS, DISPLAY DEVICES, AND ELECTRONIC DEVICES - A shift register is provided. In the shift register, each of successively cascaded shift register units includes first and second switches and first and second capacitors. For the first switch, a control terminal is coupled to a first node, an input terminal receives a first clock signal, and an output terminal is coupled to an output node. The first capacitor is coupled between the first node and the output node. The second capacitor is coupled between the output node and a ground terminal. For the second switch, an input terminal receives a second clock signal, and an output terminal is coupled to the first node. A carry signal is generated at the first node. For the N-th shift register unit, a control terminal of the second switch receives the carry signal generated at the first node of the previous shift register unit. | 02-13-2014 |
20140093252 | SHIFT REGISTER CIRCUIT AND DISPLAY DEVICE USING THE SAME - The display device according to the present invention comprises a substrate and at least one optical coupler having an optical receiver and an optical transmitter formed on the substrate, wherein the optical transmitter transmits an optical signal to the optical receiver. | 04-03-2014 |
20140354911 | DISPLAY DEVICE - A display device comprising a first substrate, a second substrate opposite to the first substrate and a pixel array is disclosed. The pixel array is disposed on the first substrate and comprises a plurality of pixels. Each pixel comprises a first conductive layer, a semiconductor layer, an electrode layer and a scan line. The first conductive layer is on the first substrate for receiving pixel data signals to the pixels. The electrode layer is disposed between the first and the second substrates. The semiconductor layer is between the first conductive layer and the electrode layer, and has first and second ends. The first end is directly connected to the first conductive layer, and the second end is electrically connected to the electrode layer. The scan line is on the semiconductor layer for receiving a plurality of scan signals to the pixels. | 12-04-2014 |
20150070259 | PARTIAL SCANNING GATE DRIVER AND LIQUID CRYSTAL DISPLAY USING THE SAME - An embodiment of the invention provides a liquid crystal display (LCD) device including a pixel array, a timing controller to output a clock signal and a gate driver. The gate driver receives the clock signal to control rows of the pixel array to be turned on or turned off. The gate driver includes a first shift register coupled to a first row of the pixel array, and a second shift register coupled to a second row of the pixel array. When the first row is determined to be skipped, the first shift register outputs a first voltage level to the first row, and when the second row is to be scanned, the second shift register outputs a second voltage level, wherein the first voltage level is between the second voltage level and a third voltage level which maintains a previously written display data. | 03-12-2015 |
Keitaro Yamashita, Chu-Nan TW
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20120033146 | LIQUID CRYSTAL DISPLAY DEVICE AND ELECTRONIC DEVICE USING THE SAME - The invention provides a liquid crystal display device capable of ensuring high transparent aperture ratio and realizing high resolution. The liquid crystal display device comprises: a first transparent substrate ( | 02-09-2012 |
20140218274 | DISPLAY PANEL - A display panel comprises a plurality of scan lines and a scan driving circuit having a plurality of stages in series, each of stages comprising a shift register unit and a compensation unit. The shift register unit and the compensation unit in the same stage are at the opposite sides of the display panel. Each of the scan lines is electrically connected with the shift register unit and the compensation unit in the same stage. When a first shift register unit of a first stage located on a side of the display panel outputs a scan signal to a terminal of the scan line, one of a second shift register unit of a previous stage and a third shift register unit of a next stage both located on the other side controls the compensation unit outputting a control signal to the other terminal of the scan line synchronously. | 08-07-2014 |
Keitaro Yamashita, Nishinomiya JP
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20150356934 | Display Driver Circuitry with Balanced Stress - A touch screen display may include gate line driver circuitry coupled to a display pixel array. The display may be provided with intra-frame pausing (IFP) capabilities, where touch or other operations may be performed during one or more intra-frame blanking intervals. In one suitable arrangement, a gate driver circuit may include multiple gate line driver segments each of which is activated by a separate gate start pulse is that received through a demultiplexing circuit. In another suitable embodiment, the gate driver circuit may include analog or digital gate driver units that include control circuits for selectively (dis)charging internal nodes in the gate driver circuit so as to balance the amount of stress that is experienced by a drive transistor in gate driver units at or near an IFP row and the amount of stress that is experienced by the remaining gate driver units. | 12-10-2015 |
Keitaro Yamashita, Nishiku JP
Keitaro Yokoyama, Tokyo JP
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20140139720 | Zoom Lens and Image Pickup Apparatus Equipped with Same - A zoom lens comprising, in order from the object side to the image side a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, a fourth lens unit having a negative refractive power, and a fifth lens unit having a positive refractive power, wherein the first lens unit is located closest to the object side, the fifth lens unit is located closest to the image side, during zooming from the wide angle end to the telephoto end, the first lens unit, the second lens unit, the third lens unit, and the fourth lens unit move, the fifth lens unit is stationary, and the distances between the lens units vary, the third lens includes a positive lens, and the zoom lens satisfies the following condition (1): | 05-22-2014 |
20140354858 | Zoom Lens and Image Pickup Apparatus Using the Same - A zoom lens includes a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, and a third lens unit having a negative refractive power. At the time of zooming, distances between the lens units change, and a distance between the first lens unit and the second lens unit at a telephoto end is shorter than at a wide angle end. An aperture stop is disposed on the image side of an image-side surface of the first lens unit, and on the object side of an image-side surface of the second lens unit. The second lens unit includes two sub lens units. The object-side sub lens unit in the second lens unit includes one lens component. The following conditional expressions are satisfied. | 12-04-2014 |
20140375870 | Zoom Lens and Image Pickup Apparatus Using the Same - A zoom lens includes in order from an object side to an image side, a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, and a third lens unit having a negative refractive power. At the time of zooming, distances between the lens units change, and a distance between the first lens unit and the second lens unit at a telephoto end is shorter than a distance between the first lens unit and the second lens unit at a wide angle end, and an aperture stop is disposed on an image side of an image-side surface of the first lens unit, and on an object side of an image-side surface of the second lens unit, and the zoom lens satisfies the conditional expressions. | 12-25-2014 |
20160004054 | Zoom Lens and Image Pickup Apparatus Using the Same - A zoom lens comprises four lens unit, and at the time of zooming, each of a distance between a first positive lens unit and a first negative lens unit and a distance between a second negative lens unit and a second positive lens unit changes, and a distance between the first positive lens unit and the second negative lens unit widens more at the telephoto end than at the wide angle end, and the first positive lens unit includes an object-side sub-lens unit and an image-side sub-lens unit, and an aperture stop is disposed between the object-side sub-lens unit and the image-side sub-lens unit, and the first negative lens unit includes a negative lens and a positive lens, and a refracting surface nearest to an image in the first negative lens unit is concave toward the image side, and a refracting surface nearest to an object in the second positive lens unit is concave toward the object side, and a refracting surface nearest to the image in the second positive lens unit is convex toward the image side, and the zoom lens satisfies predetermined conditional expressions. | 01-07-2016 |
20160077318 | Zoom Lens and Image Pickup Apparatus Using the Same - A zoom lens includes in order from an object side to an image side, a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, and a third lens unit having a negative refractive power. At the time of zooming, distances between the lens units change, and a distance between the first lens unit and the second lens unit at a telephoto end is shorter than a distance between the first lens unit and the second lens unit at a wide angle end, and an aperture stop is disposed on an image side of an image-side surface of the first lens unit, and on an object side of an image-side surface of the second lens unit, and the zoom lens satisfies the conditional expressions. | 03-17-2016 |
Keitaro Yokoyama, Shibuya-Ku JP
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20090097128 | Viewing optical system, and imaging apparatus comprising the same - The invention relates to a viewing optical system for viewing an object image formed on a focusing screen, and an imaging apparatus comprising the same. An image erection optical system comprises a prism having an internal reflective surface. An eyepiece optical system comprises, in order from a screen side to an exit pupil side, a first lens component having negative refracting power wherein its exit pupil-side surface has a paraxial-radius-of-curvature absolute value smaller than that of its screen-side surface, a second lens component in a double-convex shape and a third meniscus lens component in a meniscus shape concave on an exit pupil side. The total number of lens components included in the eyepiece optical system is 3, and the following conditions (1), (2) and (3) are satisfied. | 04-16-2009 |
Keitaro Yokoyama, Hachioji-Shi JP
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20090262434 | Viewing optical system and imaging apparatus incorporating the same - The invention provides a viewing optical system comprising: | 10-22-2009 |
20100027985 | In-finder display apparatus - An in-finder display apparatus comprises: | 02-04-2010 |
20100290129 | Eyepiece optical system and electronic view finder incorporating the same - The invention relates to an eyepiece optical system that, albeit being of small size, works in favor of gaining an angle of field and optical performance, and an electronic view finder incorporating such an eyepiece optical system. Specifically, the invention is characterized by comprising, in order from an object side to an exit side thereof, a first lens group that is a single lens that has positive refracting power and is in a meniscus configuration concave on its object side, a second lens group that is a single lens that has negative refracting power and is in a meniscus configuration concave on its object side, and a third lens group that is a single lens that has positive refracting power, wherein an object-side concave lens surface in the first lens group is an aspheric surface, an object-side concave lens surface in the second lens group is an aspheric surface, and an exit-side lens surface in the third lens group is an aspheric surface. | 11-18-2010 |
20110235191 | Imaging optical system, and imaging apparatus incorporating the same - An imaging optical system has, in order from the object side to the image side thereof, a front lens group, an aperture stop, and a rear lens group. A lens located closest to object side in said front lens group always remains fixed in position, with satisfaction of the following conditions (1) and (2): | 09-29-2011 |