Patent application number | Description | Published |
20100260022 | LIGHT SPOT POSITION CONTROL APPARATUS AND LIGHT SPOT POSITION CONTROL METHOD - Provided is a light-spot-position control apparatus including: a first-light-source; a second-light-source; a beam-splitter splitting a beam of the second-light-source into m beams; an optical-system allowing a first-beam of the first-light-source and the m beams to irradiate a disk-shaped recording-medium, where grooves and lands are alternately formed with an equal radial width to form the grooves in spiral/concentric shape through common-objective-lens, the optical-system allowing the three beams to irradiate the recording-medium so that an interval of m beam-spots is 1/m of track pitch; a tracking-control-mechanism tracking-controlling the beam by changing a relationship between the optical-axis and the recording-medium; a light-receiving unit individually receiving the m beams; an error-signal generator generating error-signals representing radial-position-errors of the spot-positions of the m beams with respect to the tracks based on received signals; an error-signal selector selecting at least one error-signal; and a servo-controller controlling the tracking-control-mechanism to tracking-servo the beam based on the error-signal. | 10-14-2010 |
20110235484 | RECORDING DEVICE AND RECORDING METHOD - In one example embodiment, a recording apparatus includes a laser and a controller. In one example embodiment, the recording apparatus records a second recording track on a recording medium which includes a first recording track which was previously recorded on the recording medium. In one example embodiment, the second recording track is gradually enlarged until a first separation distance exceeds a distance which corresponds to at least twice a number of maximum deviation tracks of the first recording track. | 09-29-2011 |
20110305122 | RECORDING DEVICE AND RECORDING METHOD - A recording device performs recording on an optical disc recording medium having a reference face having a reflection film provided with a position guide, and a recording layer provided at a position of a depth different from that of the reference face and performing information recording by mark forming according to irradiation of light. The recording device includes a light generating and irradiation unit, a recording unit, a tracking mechanism, a first tracking error signal generating unit, a second tracking error signal generating unit, a tracking servo control unit, and a control unit. | 12-15-2011 |
20110305127 | RECORDING DEVICE AND RECORDING METHOD - A recording device includes: a rotation driving unit that rotates an optical medium having a reference face and a recording layer, at a constant velocity; a light irradiating unit that irradiates the optical recording medium with first and second light through a common object lens; an infocus position adjusting unit that performs adjustment to focus; a light receiving unit that receives reflection light from the reference face; a reproducing clock generating unit that generates a reproducing clock on the basis of a light reception signal; a radial position detecting unit that detects the radial positional information on the basis of the light reception signal and the reproducing clock positional information; a frequency adjusting unit that changes a frequency of an input reference signal; and a recording unit that performs mark recording on the recording layer using the signal obtained by the frequency adjusting unit as a recording clock. | 12-15-2011 |
20120002519 | DISK-SHAPED RECORDING MEDIUM, OPTICAL SPOT POSITION CONTROL DEVICE, AND OPTICAL SPOT POSITION CONTROL METHOD - In a case of performing recording/playing with an information recording layer with a first light irradiation, and controlling the recording/playing positions on the information recording layer by a second light irradiating as to a position control information recording layer provided separately from the information recording layer, corrections to shifts in recording positions and playing positions that occurs as a result of shifts in the optical axes of the first and second lights. | 01-05-2012 |
20120044791 | RECORDING APPARATUS - A recording apparatus, which records information in an optical recording medium, includes: a mode-lock laser unit including a saturable absorber section that applies a bias voltage, a gain section that feeds a gain current, a semiconductor laser that emits laser light used to record the information on the optical recording medium, and an external resonator; an optical modulation unit performing amplification modulation on the laser light emitted from the mode-lock laser unit; a reference signal generation unit generating a master clock signal and supplying a signal synchronized with the master clock signal to the gain section of the semiconductor laser; a recording signal generation unit generating a recoding signal based on the master clock signal; and a driving circuit generating a driving pulse used to drive the optical modulation unit based on the recording signal. | 02-23-2012 |
20120099409 | RECORDING DEVICE AND SPOT POSITION CONTROL METHOD - A recording device including a light irradiating and light receiving unit which, in regard to an optical recording medium, which has a reference surface and a recording layer which is formed at a depth position different from the reference surface, where a pit row where intervals of pit formable positions in one circumference is limited to a first interval is formed in the reference surface, and which has a plurality of pit row phases by intervals of the pit formable positions in a pit row formation direction being set in a position which is each deviated by a predetermined second interval in the pit row which are arranged in the radial direction, irradiates a first light as recording light with regard to the recording layer and a second light for obtaining reflected light from the reference surface and which receives reflected light of the second light from the reference surface. | 04-26-2012 |
20120106308 | OPTICAL RECORDING MEDIUM AND RECORDING DEVICE - An optical recording medium in which recording is performed by a recording device that is configured such that tracking servo control of recording light is performed by irradiating the recording light and ATS light for an adjacent track servo and by an adjacent track servo based on reflected light of the ATS light, wherein while a recording layer in which a mark is formed according to an irradiation of the recording light is included, a mark row is formed in advance by a pitch that is twice a distance between an irradiation spot of the recording light and an irradiation spot of the ATS light or greater in the recording layer. | 05-03-2012 |
20120113775 | RECORDING APPARATUS - A recording apparatus includes: a light-emitting/receiving unit which emits a recording beam, an ATS beam, and a position control beam toward an optical disc recording medium via a common object lens; a tracking mechanism which drives the object lens in a tracking direction parallel to a radial direction of the optical disc recording medium; a reference plane-side tracking error signal generation unit which generates a reference plane-side tracking error signal; a reference plane-side tracking servo signal generation unit which generates a reference plane-side tracking servo signal to cancel out a tracking error; a tracking driving unit which drives the tracking mechanism; an ATS-side tracking error signal generation unit which generates an ATS-side tracking error signal; an ATS control signal generation unit which generates an ATS control signal to cancel out a tracking error; and a signal providing unit which provides the ATS control signal to a tracking servo loop. | 05-10-2012 |
20120113776 | SPOT POSITION CONTROL DEVICE AND SPOT POSITION CONTROL METHOD - A spot position control device includes a light irradiation and light sensing unit irradiating an optical recording medium with first light via an objective lens and sensing reflection light of the first light from the optical recording medium having a pit string where an interval between pit formable positions on one round is limited to a first interval, a tracking mechanism unit displacing the objective lens, a clock generation unit generating a clock corresponding to the interval between the pit formable positions, a timing selector signal generation unit generating a plurality of timing selector signals, a tracking error signal generation unit generating tracking error signals, a linear tracking error signal generation unit generating a linear tracking error signal indicating a tracking error amount linearly, a tracking servo control unit performing a tracking servo control, and an offset giving unit giving an offset to a tracking servo loop. | 05-10-2012 |
20120113777 | RECORDING APPARATUS AND RECORDING METHOD - A recording apparatus includes: a light illumination and light sensing unit configured to illuminate an optical disc recording medium including a reference surface having address information recorded and a recording layer, with recording light and light for position control; a recording unit which performs recording on the recording layer; and a control unit which controls, when data instructed to be recorded is to be recorded from an instructed recording start address, the recording unit to perform recording of dummy data on an area adjacent to a front side at least from the recording start address over a range of equal to or greater than the maximum spot deviation amount between an illumination spot of the light for position control and an illumination spot of the recording light and to perform recording of the data instructed to be recorded in succession to a recorded area of the dummy data. | 05-10-2012 |
20120182851 | OPTICAL RECORDING MEDIUM AND RECORDING METHOD - Techniques for recording and reading information to/from a recording medium based on positions of a plurality of marks are described herein. Each of the plurality of marks may have the same length. The information may be recorded based on a mark interval between successive marks. Apparatus and a recording medium suitable for use with such techniques are also disclosed. | 07-19-2012 |
20130010580 | RECORDING APPARATUS AND RECORDING METHOD - Provided is a recording apparatus including a light irradiation and receiving unit configured to irradiate recording light for performing mark recording to a recording layer and an adjacent servo light for an adjacent track servo onto an optical disc recording medium having the recording layer through a common objective lens, and to receive reflected light from the recording layer of the adjacent servo light, a tracking mechanism configured to drive the objective lens in a tracking direction which is the disc radial direction, a tracking servo signal generation unit configured to obtain a corrected servo error signal as a servo error signal based on a light receiving signal for the adjacent servo light, and to generate a tracking servo signal using the corrected servo error signal, and a tracking driving unit configured to drive the tracking mechanism based on the tracking servo signal. | 01-10-2013 |
20130223198 | RECORDING APPARATUS, RECORDING METHOD, REPRODUCING APPARATUS, AND REPRODUCING METHOD - There is provided an recording apparatus including a light irradiation unit, a reference-plane tracking control unit, a recording unit that executes recording on the recording medium by independently modulating first and second recording beams when the recording beams radiated by the first and second objective lenses are designated as the first and second recording beams, respectively, a recording-layer tracking control unit that performs tracking control of the first objective lens based on reflected light of a first servo beam and tracking control of the second objective lens based on reflected light of a second servo beam when the servo beam radiated by the first objective lens is designated as the first servo beam and the servo beam radiated by the second objective lens is designated as the second servo beam, and a control unit that controls the reference-plane tracking control unit, the recording-layer tracking control unit, and the recording unit. | 08-29-2013 |
20130250744 | RECORDING DEVICE AND STRAY LIGHT SIGNAL COMPONENT CANCELLATION METHOD - Provided is a recording device, including a light irradiation/receiving unit that irradiates an optical recording medium with first light and second light, and that receives backpropagating light of the second light from the optical recording medium, a recording unit that carries out recording on the optical recording medium, a playback signal generating unit that obtains a playback signal of a signal, and a stray light signal component canceling unit that generates, based on recording data, a stray light cancel signal for canceling a stray light signal component. | 09-26-2013 |
20150103640 | OPTICAL INFORMATION RECORDING MEDIUM AND OPTICAL INFORMATION RECORDING MEDIUM REPRODUCING DEVICE - Provided is a CAV or a zone CAV. A groove which continuously wobbles is preliminary formed and information is recorded in the groove and a land adjacent to the groove, the groove has a first wobble part which is modulated by groove address information, a second wobble part which is modulated by address information of one adjacent land, and a third wobble part which is modulated by address information of the other adjacent land, a first section sandwiched between the second wobble parts of adjacent two grooves and a second section sandwiched between the third wobble parts of the adjacent two grooves are formed on the land, and one of phases of wobbles on both sides of the first section and phases of wobbles on both sides of the second section are substantially in-phase. | 04-16-2015 |
Patent application number | Description | Published |
20140094024 | PLASMA DOPING APPARATUS, PLASMA DOPING METHOD, AND METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE - Disclosed is a plasma doping apparatus including a processing chamber, a substrate holding unit, a plasma generating mechanism, a pressure control mechanism, a bias power supply mechanism, and a control unit. The control unit controls the pressure within the processing chamber to be a first pressure and controls the bias power to be supplied to the holding unit is to be a first bias power for a first plasma process. The control unit also controls the pressure within the processing chamber to be a second pressure which is higher than the first pressure, and controls the bias power to be supplied to the holding unit to be a second bias power which is lower than the first bias power for a second plasma process. | 04-03-2014 |
20140179028 | PLASMA DOPING APPARATUS AND PLASMA DOPING METHOD - Disclosed is a plasma doping apparatus provided with a plasma generating mechanism. The plasma generating mechanism includes a microwave generator that generates microwave for plasma excitation, a dielectric window that transmits the microwave generated by the microwave generator into a processing container, and a radial line slot antenna formed with a plurality of slots. The radial line slot antenna radiates the microwave to the dielectric window. A control unit controls the plasma doping apparatus such that a doping gas and a gas for plasma excitation are supplied into the processing container by a gas supply unit in a state where the substrate is placed on a holding unit, and then plasma is generated by the plasma generating mechanism to perform doping on the substrate such that the concentration of the dopant implanted into the substrate is less than 1×10 | 06-26-2014 |
20140357068 | PLASMA DOPING APPARATUS, PLASMA DOPING METHOD, SEMICONDUCTOR DEVICE MANUFACTURING METHOD AND SEMICONDUCTOR DEVICE - A plasma doping apparatus which performs doping by injecting dopants into a substrate to be processed. The apparatus includes a processing container, a gas supplying unit configured to supply a doping gas and an inert gas for plasma excitation into the processing container, a holding table configured to hold the substrate to be processed, a plasma generating mechanism configured to generate plasma in the processing container using a microwave, a pressure adjusting mechanism configured to adjust a pressure in the processing container, and a control unit configured to control the plasma doping apparatus. The control unit controls the pressure adjusting mechanism to set the pressure in the processing container to be equal to or more than 100 mTorr and less than 500 mTorr such that a plasma processing is performed on the substrate to be processed using the plasma generated by the plasma generating mechanism. | 12-04-2014 |
Patent application number | Description | Published |
20100054524 | SPEAKER DEVICE - A speaker device includes a damper allowing high linearity. The speaker device includes a vibration body including a damper and a voice coil bobbin (bobbin), and a magnetic circuit having a plate. The damper has a first member arranged opposite the plate, and a second member projecting on a side of the plate from the first member. The first member has a movable part elastically supporting the bobbin. The movable part is a flat plate, and behaves with respect to a bent part provided between the movable part and the second member with movement of the bobbin in an acoustic radiation direction and reverse. Therefore, when a constant force is given to the damper via the voice coil, a displacement of the damper with respect to a rest position can be substantially similar in such a case that the damper behaves in the acoustic radiation direction and the reverse. | 03-04-2010 |
20110200204 | SPEAKER DEVICE - To provide a thin speaker device capable of emitting a loud reproduced sound with a comparatively simple structure, and to input the audio signal to the voice coil not to have an adverse effect on the vibration of the voice coil is executed. A speaker device includes a vibration direction converter part transmitting the vibration of the voice coil to the diaphragm, and a holding part holding the voice coil at the static part such that the voice coil vibrates linearly, and the audio signal inputted to an audio signal input terminal provided at the static part is inputted to the voice coil via the holding part. | 08-18-2011 |
20120045073 | SPEAKER DEVICE - A flat speaker device capable of emitting loud reproduced sound with a relatively simple configuration is provided. The speaker device includes a diaphragm, a frame supporting the diaphragm vibratably in the vibration direction, a magnetic circuit disposed in the frame, and a driving member for driving the diaphragm. The driving member includes a voice coil movably disposed in a magnetic gap of the magnetic circuit, a driving part formed movably in a direction different from the vibration direction of the diaphragm, and an angle conversion and transmission part, one end of which is angle-variably joined to the driving part and another end of which is angle-variably joined to the diaphragm. The angle conversion and transmission part has rigidity and is obliquely disposed with respect to each of the vibration direction of the diaphragm and the moving direction of the driving part. | 02-23-2012 |
20120207321 | SPEAKER DEVICE - A speaker device includes a static part, a driving part and a vibrating body. The vibrating body includes a plurality of diaphragms supported by the static part. A vibration direction converter part is provided between a first diaphragm and a second diaphragm facing each other in a plurality of the diaphragms, and connects the first diaphragm with the second diaphragm such that the first diaphragm and the second diaphragm synchronously move toward and away from each other. A part of the vibration direction converter part disposed in the proximity of the static part is supported by the static part, and a part of the vibration direction converter part disposed in the proximity of the driving part is supported by the driving part. | 08-16-2012 |
Patent application number | Description | Published |
20100086168 | SPEAKER DEVICE - In a speaker device, cutting wiring electrically connected to a conductive wire of an electronic component and a voice coil, and the conductive wire and the wiring are electrically connected without a speaker terminal lug. The speaker device includes wiring electrically connected to the voice coil, an electronic component having a component wire, and a frame. The frame has a conductive wire fixing part for fixing the conductive wire, and the conductive wire is fixed to the conductive wire fixing part to be directly connected to the wiring. Thereby, even if a vibration is transmitted to the frame at the time of driving the speaker device, the conductive wire never vibrates, and the conductive wire does not pull the wiring. Therefore, the conductive wire and wiring are not cut. Also, since the conductive wire is the speaker terminal lug, cost of the speaker device can be reduced. | 04-08-2010 |
20110069859 | SPEAKER DEVICE - A flat speaker device capable of emitting loud reproduced sound with a relatively simple configuration is provided. The speaker device includes a diaphragm, a frame supporting the diaphragm vibratably in the vibration direction, a magnetic circuit disposed in the frame, and a driving member for driving the diaphragm. The driving member includes a voice coil movably disposed in a magnetic gap of the magnetic circuit, a driving part formed movably in a direction different from the vibration direction of the diaphragm, and an angle conversion and transmission part, one end of which is angle-variably joined to the driving part and another end of which is angle-variably joined to the diaphragm. The angle conversion and transmission part has rigidity and is obliquely disposed with respect to each of the vibration direction of the diaphragm and the moving direction of the driving part. | 03-24-2011 |
20110116650 | SPEAKER DEVICE - A speaker device includes a diaphragm, a frame supporting the diaphragm vibratably along a vibration direction, and a driving part disposed in proximity of the frame and vibrating the diaphragm corresponding to an audio signal. The driving part includes a magnetic circuit having a magnetic gap formed along a direction different from the vibration direction of the diaphragm, a voice coil supporting part having a voice coil and vibrating along the magnetic gap, and a vibration-direction-conversion part direction-converting the vibration of the voice coil supporting part and transmitting the vibration to the diaphragm. The vibration-direction-conversion part includes a link body angle-converting a link part formed between the voice coil supporting part and the diaphragm. | 05-19-2011 |
20110158462 | SPEAKER DEVICE - A speaker device including a diaphragm, a static part vibratably supporting the diaphragm, and a driving part provided at the static part and vibrating the diaphragm upon an audio signal. The driving part includes a voice coil vibrating in a direction different from the diaphragm upon the audio signal inputted, a magnetic circuit including a magnetic gap in which the voice coil is arranged, a rigid vibration direction converter part obliquely disposed with respect to the vibration direction of the voice coil and the diaphragm, and connected with the voice coil and the diaphragm, and a holding part holding the voice coil at the static part. The holding part restricts the vibration of the voice coil in one axis direction. | 06-30-2011 |
20110164781 | MAGNETIC CIRCUIT FOR SPEAKER DEVICE AND SPEAKER DEVICE - A speaker device includes a diaphragm ( | 07-07-2011 |
20110176703 | SPEAKER DEVICE - A speaker device includes a speaker unit and a cabinet on or in which the speaker unit is mounted. The speaker unit includes a diaphragm, a static part supporting the diaphragm vibratably in a vibration direction, and a driving part provided at the static part to vibrate the diaphragm in response to an audio signal. The driving part includes a magnetic circuit forming a magnetic gap, a voice coil vibrating in a direction different from the vibration direction of the diaphragm upon the inputted audio signal, and a rigid vibration direction converter part configured to convert the vibration direction of the voice coil and transmit the vibration to the diaphragm. | 07-21-2011 |
20110232990 | VIBRATING BODY FOR SPEAKER AND SPEAKER DEVICE - A speaker vibrating body vibrated by a driving part includes a plurality of diaphragms vibratably supported by a static part supporting said driving part and a diaphragm connecting part, provided between a first diaphragm and a second diaphragm among said plurality of diaphragms, coupling said first diaphragm and said second diaphragm and synchronously moving said first diaphragm and said second diaphragm toward or away from each other. | 09-29-2011 |
20110305355 | VIBRATION DIRECTION CONVERTER PART FOR SPEAKER DEVICE AND SPEAKER DEVICE - A vibration direction converter part for speaker device direction converting a vibration of a voice coil supporting part supporting a voice coil, and vibrating a diaphragm in the direction different from the direction of the vibration of the voice coil supporting part, has a rigid link part angle-variably and obliquely disposed between the voice coil supporting part and the diaphragm, and hinge parts formed at both end parts of the link part. The hinge part is formed with a bendable continuous member continuing between both side parts across the hinge part. | 12-15-2011 |
20120106772 | SPEAKER DEVICE - A diaphragm, a static part vibratably supporting the diaphragm in the vibration direction, and a driving part provided at the static part and applying vibration to the diaphragm in response to an audio signal are provided, and the driving part includes a magnetic circuit forming a magnetic gap, a voice coil vibrating in a different direction from the vibration direction of said diaphragm in response to an inputted audio signal and a rigid vibration direction converter part direction-converting the vibration of the voice coil and transmitting the vibration to the diaphragm, and the vibration direction converter part is connected to an attaching counterpart including the diaphragm and the voice coil and includes a hinge part in the proximity of the attaching counterpart, and a contact avoiding part avoiding contact with the hinge part is formed on the face side of the attaching counterpart in the proximity of the hinge part. | 05-03-2012 |
20120114136 | SPEAKER DEVICE - A speaker device has a diaphragm, a static part vibratably supporting the diaphragm in a vibration direction and a driving part applying vibration to the diaphragm in response to an audio signal. The driving part is provided at the static part. The driving part includes a magnetic circuit forming a magnetic gap in a direction different from the vibration direction of the diaphragm, a voice coil vibrating along the magnetic gap, and a vibration direction converter part direction-converting the vibration of the voice coil and transmitting the vibration to the diaphragm. The vibration direction converter part includes a link body angle-converting a link part formed between the voice coil and the diaphragm. The static part includes an outer peripheral frame part surrounding the diaphragm and a bridge part bridging the inside of the outer peripheral frame part. | 05-10-2012 |
Patent application number | Description | Published |
20090027769 | IMMERSION MICROSCOPE OBJECTIVE AND LASER SCANNING MICROSCOPE SYSTEM USING SAME - An immersion microscope objective formed of thirteen or fewer lens elements includes, in order from the object side, first and second lens groups of positive refractive power, a third lens group, a fourth lens group having negative refractive power with its image-side surface being concave, and a fifth lens group having positive refractive power with its object-side surface being concave. The first lens group includes, in order from the object side, a lens component that consists of a lens element of positive refractive power (when computed as being in air) and a meniscus lens element having its concave surface on the object side. Various conditions are satisfied to ensure that images of fluorescence, obtained when the immersion microscope objective is used in a laser scanning microscope that employs multiphoton excitation to observe a specimen, are bright and of high resolution. Various laser scanning microscopes are also disclosed. | 01-29-2009 |
20100053782 | CONSTRUCTION OF OBJECTIVE - A construction of an objective is configured which includes a plurality of lens groups including at least one cemented lens group; a plurality of inner frames to hold the lens groups, each including a contact projection; and a tube to hold the plurality of inner frames stacked inside. At least one cemented lens group is secured to the inner frames by causing the periphery of a cemented surface between cemented lenses to come into contact with the contact projection. | 03-04-2010 |
20110043906 | IMMERSION MICROSCOPE OBJECTIVE AND LASER SCANNING MICROSCOPE SYSTEM USING SAME - An immersion microscope objective formed of thirteen or fewer lens elements includes, in order from the object side, first and second lens groups of positive refractive power, a third lens group, a fourth lens group having negative refractive power with its image-side surface being concave, and a fifth lens group having positive refractive power with its object-side surface being concave. The first lens group includes, in order from the object side, a lens component that consists of a lens element of positive refractive power (when computed as being in air) and a meniscus lens element having its concave surface on the object side. Various conditions are satisfied to ensure that images of fluorescence, obtained when the immersion microscope objective is used in a laser scanning microscope that employs multiphoton excitation to observe a specimen, are bright and of high resolution. Various laser scanning microscopes are also disclosed. | 02-24-2011 |
20110043924 | IMMERSION MICROSCOPE OBJECTIVE AND LASER SCANNING MICROSCOPE SYSTEM USING SAME - An immersion microscope objective formed of thirteen or fewer lens elements includes, in order from the object side, first and second lens groups of positive refractive power, a third lens group, a fourth lens group having negative refractive power with its image-side surface being concave, and a fifth lens group having positive refractive power with its object-side surface being concave. The first lens group includes, in order from the object side, a lens component that consists of a lens element of positive refractive power (when computed as being in air) and a meniscus lens element having its concave surface on the object side. Various conditions are satisfied to ensure that images of fluorescence, obtained when the immersion microscope objective is used in a laser scanning microscope that employs multiphoton excitation to observe a specimen, are bright and of high resolution. Various laser scanning microscopes are also disclosed. | 02-24-2011 |
Patent application number | Description | Published |
20090220375 | Bronze-based alloy of low lead content - The object of the present invention is to provide a bronze-based alloy of low lead content, first improved in tensile strength at high temperatures, secondly contributing to the promotion of the environmental conservation including recycling, while avoiding the adverse effect of lead on human bodies by means of reduction of a lead content, and excellent from the standpoints of mass-productivity and manufacturing cost. The alloy includes 2.0 to 6.0 mass % of Sn, 3.0 to 10.0 mass % of Zn, 0.1 to 3.0 mass % of Bi, 0.1 mass % | 09-03-2009 |
20090297390 | LEADLESS BRASS ALLOY EXCELLENT IN STRESS CORROSION CRACKING RESISTANCE - By enhancing a stress corrosion cracking resistance in a leadless brass alloy, specifically by suppressing a velocity of propagation of corrosion cracks in the brass alloy, a straight line crack peculiar to the leadless brass alloy is suppressed, a probability of cracks coming into contact with γ phases is heightened and local corrosion on the brass surface is prevented to suppress induction of cracks by the local corrosion, thereby providing a leadless brass alloy contributable to enhancement of the stress corrosion cracking resistance. The present invention is directed to an Sn-containing Bi-based, Sn-containing Bi+Sb-based or Sn-containing Bi+Se+Sb-based leadless brass alloy excellent in stress corrosion cracking resistance, having an α+γ structure or α+β+γ structure and having γ phases distributed uniformly therein at a predetermined proportion to suppress local corrosion and induction of stress corrosion cracks. | 12-03-2009 |
20100263572 | Method for preventing elution of nickel from water-contact instrument of copper alloy by formation of a protective film - There are provide a nickel elution prevention method for preventing a water-contact instrument made of copper alloy from eluting nickel even when being water-contact with a fluid, such as city water, a protective film formation agent for preventing the elution of nickel and a detergent for preventing the elution of nickel. The water-contact instrument includes valves for city water, feedwater or hot water, pipe joints, strainers, water faucet clasps, pump supplies materials, water meters, water purifiers, water feeders, hot water feeders or other such water-contact instruments each made of copper alloy, such as bronze, brass, etc., plated with a material containing nickel, for example. The nickel elution prevention method for the water-contact instrument of copper alloy includes applying the protective film formation agent containing at least one species of benzotriazole, benzotriazole derivatives and organic acids including a straight-chain fatty acid to at least a water-contact surface of the water-contact instrument of copper alloy to form a protective film, thereby suppressing elution of nickel via the protective film. | 10-21-2010 |
20130129561 | LEADLESS BRASS ALLOY EXCELLENT IN STRESS CORROSION CRACKING RESISTANCE - By enhancing a stress corrosion cracking resistance in a leadless brass alloy, specifically by suppressing a velocity of propagation of corrosion cracks in the brass alloy, a straight line crack peculiar to the leadless brass alloy is suppressed, a probability of cracks coming into contact with γ phases is heightened and local corrosion on the brass surface is prevented to suppress induction of cracks by the local corrosion, thereby providing a leadless brass alloy contributable to enhancement of the stress corrosion cracking resistance. The present invention is directed to an Sn-containing Bi-based, Sn-containing Bi+Sb-based or Sn-containing Bi+Se+Sb-based leadless brass alloy excellent in stress corrosion cracking resistance, having an α+γ structure or α+β+γ structure and having γ phases distributed uniformly therein at a predetermined proportion to suppress local corrosion and induction of stress corrosion cracks. | 05-23-2013 |
Patent application number | Description | Published |
20080239922 | OPTICAL DISC APPARATUS, INFORMATION RECORDING METHOD, AND INFORMATION REPRODUCTION METHOD - An optical disc apparatus that records recording marks in a plurality of mark layers by irradiating predetermined light onto a disc-like volume type recording medium on the basis of information to be recorded is disclosed. The apparatus includes: a first focus position adjusting means for adjusting the position of a focus on which a first light beam focuses within the volume type recording medium, in the direction of an optical axis of the first light beam; a second focus position adjusting means for adjusting the position of a focus on which a second light beam focuses within the volume type recording medium, in the direction of an optical axis of the second light beam; a focus control means for controlling the first focus position adjusting means and the second focus position adjusting means; and a recording control means for forming the recording marks at the positions of respective focuses. | 10-02-2008 |
20090052312 | RECORDING APPARATUS, REPRODUCING APPARATUS, RECORDING METHOD, REPRODUCING METHOD, AND RECORDING MEDIUM - A recording apparatus for recording data on a recording medium having at least one recording layer, includes a loading unit and a recorder unit. On the loading unit, the recording medium is capable of being loaded. The recorder unit is configured to cause the at least one recording layer a physical change to collectively record a plurality of pieces of data on the at least one recording layer of the recording medium loaded on the loading unit, in a thickness direction of the at least one recording layer, such that the physical change of the at least one recording layer is capable of being detected at one time when the recording medium is reproduced. | 02-26-2009 |
20090147660 | OPTICAL DISC APPARATUS, POSITION CONTROL METHOD AND OPTICAL PICKUP - An optical disc apparatus can make the focus of an information light beam converged by an objective lens agree with a target track of a target mark layer of an optical disc by appropriately predefining the distance between the focus of a servo light beam and that of the information light beam with regard to the direction of the thickness and a radial direction of the optical disc by means of the optical pickup of the apparatus and then operating for focus control and tracking control of the objective lens so as to make focus of the servo light beam converged by the objective lens agree with a reference track of a reference mark layer. | 06-11-2009 |
20090201776 | OPTICAL INFORMATION RECORDING DEVICE AND RECORDING CORRECTION CALCULATION METHOD - When recording recording information by forming on a recording medium a recording mark whose mark length is an integral multiple of the reference mark length according to a recording signal generated from a recording information signal, this method performs a process of: generating, after recording compensation recording information on the recording medium, a reproduction signal by reading out the compensation recording information; generating from the reproduction signal a reproduction clock whose cycle corresponds to the reference mark length; setting a signal level suitable for binarization determination of the reproduction signal as a distribution reference level, according to the difference in variation between white and black levels of the reproduction signal; and calculating the recording correction value for correcting the compensation recording signal, so that the reproduction signal becomes closer to the distribution reference level around a target cross timing determined based on the reproduction clock. | 08-13-2009 |
20090245065 | OPTICAL DISC DEVICE AND FOCUS CONTROL METHOD - A focus control section first performs a reference focus control process in which a reference optical beam is focused on a reference layer of an optical disc according to the result of receiving a reference reflection optical beam, and then switches from the reference focus control process to an information focus control process in which an information optical beam is focused on a mark layer of the optical disc according to the result of receiving an information reflection optical beam. | 10-01-2009 |
20100046338 | OPTICAL DISC APPARATUS, FOCUS POSITION CONTROL METHOD AND RECORDING MEDIUM - An optical disc apparatus can highly accurately record a hologram representing information on or reproduce such a hologram from an optical disc. When recording information on an optical disc | 02-25-2010 |
20110170388 | OPTICAL DRIVE DEVICE AND FOCUS SERVO CONTROL METHOD - An optical drive device includes first and second light sources, an objective lens configured to receive a first light emitted from the first light source and a second light emitted from the second light source and to irradiate both the first light and the second light to an optical disc recording medium, a first focus mechanism configured to drive the objective lens in a focus direction, a second focus mechanism configured to change collimation of the second light incident to the objective lens and changing the focusing position of the second light independently of the first light, a first focus servo control unit configured to drive the first focus mechanism, an error signal subtraction unit configured to subtract the first focus error signal from a second focus error signal, and a second focus servo control unit configured to drive the second focus mechanism. | 07-14-2011 |
20120182851 | OPTICAL RECORDING MEDIUM AND RECORDING METHOD - Techniques for recording and reading information to/from a recording medium based on positions of a plurality of marks are described herein. Each of the plurality of marks may have the same length. The information may be recorded based on a mark interval between successive marks. Apparatus and a recording medium suitable for use with such techniques are also disclosed. | 07-19-2012 |
20130322222 | OPTICAL INFORMATION RECORDING MEDIUM AND REPRODUCING APPARATUS - An optical information recording medium on which recording address information is performed by a CAV or a zone CAV system, wherein a groove wobbling continuously is formed in advance to record the information to the groove and a land abutting the groove, the address information is recorded by a wobble where a plurality of modulated waves modulated by the address information are multiply formed, the modulated wave is a higher harmonic wave whose frequency is a fundamental wave of the fundamental frequency of the wobble, or an integer times the fundamental frequency of the wobble, one modulated wave is modulated by the address information of one land of the abutting lands which interpose the groove, and the other modulated wave is modulated by the address information of the other land of the abutting lands which interpose the groove. | 12-05-2013 |
20130322228 | OPTICAL INFORMATION RECORDING MEDIUM AND OPTICAL INFORMATION RECORDING MEDIUM REPRODUCING APPARATUS - An optical information recording medium of a CAV or a zone CAV, in which a groove wobbling continuously is formed in advance so as to record information to a groove and a land abutting the groove, the groove alternately has a first wobble position in which a wobble fundamental wave form has been modulated by groove address information, and a second wobble position of the wobble fundamental wave form, and in grooves of both sides by which the land is interposed, the first wobble position and the second wobble position are different from each other in position. | 12-05-2013 |
20130336097 | OPTICAL-INFORMATION RECORDING MEDIUM AND PLAYBACK APPARATUS - An optical-information recording medium includes a groove and a land that are alternately provided. Address information in the groove is recorded by wobbles in the groove, and address information on the land is recorded by a combination of the wobbles in the grooves provided at two opposite sides of the land. | 12-19-2013 |
20140219073 | INFORMATION RECORDING MEDIUM, INFORMATION REPRODUCING METHOD, AND INFORMATION REPRODUCING APPARATUS - An information recording medium is provided with an information track formed thereon in a shape of concentric circles or in a spiral shape, wherein a continuously-wobbling groove in which information is recorded is formed in advance, the information is delimited by a predetermined number of wobble sections, a sync mark is placed in a plurality of wobble sections in the vicinity of a delimiter of the predetermined number of wobble sections, and the sync mark is spaced apart from data other than the sync mark at a distance. | 08-07-2014 |
20140272915 | ACCELERATION SENSATION PRESENTATION APPARATUS, ACCELERATION SENSATION PRESENTATION METHOD, AND ACCELERATION SENSATION PRESENTATION SYSTEM - An acceleration sensation presentation apparatus includes: a frame to be worn on the head of a user; at least one or more weights provided to the frame; and a vibration driving unit configured to vibrate the weight to be moved. | 09-18-2014 |
20150044662 | ACCELERATION SENSATION PRESENTATION DEVICE, ACCELERATION SENSATION PRESENTATION METHOD, AND ACCELERATION SENSATION PRESENTATION SYSTEM - An acceleration sensation presentation device which is attached to a vicinity of head of a user, the device including one or a plurality of spindles; and a spindle driving unit which generates a force in a direction different from a predetermined direction by moving the spindle in the predetermined direction. | 02-12-2015 |
20160034035 | ACCELERATION SENSE PRESENTATION APPARATUS, ACCELERATION SENSE PRESENTATION METHOD, AND ACCELERATION SENSE PRESENTATION SYSTEM - An acceleration sense presentation apparatus includes a vibrator group including a plurality of vibrators; an input unit to which information having directivity is inputted; and a vibration control unit for continuously switching a vibrator to be vibrated based on the information having directivity. | 02-04-2016 |