Koichiro Watanabe
Koichiro Watanabe, Annaka JP
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20110097627 | NEGATIVE ELECTRODE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERIES, MANUFACTURING METHOD THEREFOR, AND LITHIUM-ION SECONDARY BATTERIES - The present invention is a negative electrode material for non-aqueous electrolyte secondary batteries, comprising at least: particles wherein silicon nanoparticles are dispersed in silicon oxide (silicon oxide particles); and a metal oxide coating formed on a surface of the silicon oxide particles. As a result, there is provided a negative electrode material for non-aqueous electrolyte secondary batteries that enables the production of a negative electrode suitable for lithium-ion secondary batteries and the like that provides improved safety and cycle performance over conventional negative electrode materials. | 04-28-2011 |
Koichiro Watanabe, Annaka-Shi JP
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20090239151 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, NEGATIVE ELECTRODE MATERIAL, AND MAKING METHOD - A negative electrode material comprising an active material and 1-20 wt % of a polyimide resin binder is suitable for use in non-aqueous electrolyte secondary batteries. The active material comprises silicon oxide particles and 1-50 wt % of silicon particles. The negative electrode exhibits improved cycle performance while maintaining the high battery capacity and low volume expansion of silicon oxide. The non-aqueous electrolyte secondary battery has a high initial efficiency and maintains improved performance and efficiency over repeated charge/discharge cycles by virtue of mitigated volumetric changes during charge/discharge cycles. | 09-24-2009 |
20090311606 | NEGATIVE ELECTRODE MATERIAL, MAKING METHOD, LITHIUM ION SECONDARY BATTERY, AND ELECTROCHEMICAL CAPACITOR - A conductive powder is provided in which particles having silicon crystallites dispersed in a silicon compound are coated on their surface with carbon. The conductive powder develops a diffraction peak assigned to Si(111) around 2θ=28.4° on x-ray diffractometry (Cu—Kα) using copper as the counter cathode, the peak having a half width of at least 1.0°, and has a specific resistance of up to 50 mΩ. The powder is used as a negative electrode material to construct a non-aqueous electrolyte secondary battery, which has a high charge/discharge capacity and improved cycle performance. | 12-17-2009 |
20090317722 | NEGATIVE ELECTRODE MATERIAL, NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND ELECTROCHEMICAL CAPACITOR - Silicon particles are irradiated with neutrons so that | 12-24-2009 |
20100009261 | NEGATIVE ELECTRODE MATERIAL, MAKING METHOD, LITHIUM ION SECONDARY BATTERY, AND ELECTROCHEMICAL CAPACITOR - Particles of a silicon oxide of formula: SiOx wherein x is 0.5 to 1.6, a silicon composite comprising silicon dispersed in silicon dioxide and having a molar ratio Si/O from 1:0.5 to 1:1.6, or a mixture thereof are doped with 50-100,000 ppm of phosphorus. A negative electrode material comprising the phosphorus-doped particles is suited for use in non-aqueous electrolyte secondary batteries. A lithium ion secondary battery having satisfactory cycle and rate properties is obtainable. | 01-14-2010 |
20100055563 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, NEGATIVE ELECTRODE, NEGATIVE ELECTRODE MATERIAL, AND PREPARATION OF SI-O-AL COMPOSITE - An Si—O—Al composite comprising silicon, silicon oxide, and aluminum oxide exhibits a powder XRD spectrum in which the intensity of a signal of silicon at 28.3° is 1-9 times the intensity of a signal near 21°. A negative electrode material comprising the Si—O—Al composite is used to construct a non-aqueous electrolyte secondary battery which is improved in 1st cycle charge/discharge efficiency and cycle performance while maintaining the high battery capacity and low volume expansion upon charging of silicon oxide. | 03-04-2010 |
20100288970 | NEGATIVE ELECTRODE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, MAKING METHOD AND LITHIUM ION SECONDARY BATTERY - A negative electrode material for nonaqueous electrolyte secondary batteries comprises composite particles which are prepared by coating surfaces of particles having silicon nano-particles dispersed in silicon oxide with a carbon coating, and etching the coated particles in an acidic atmosphere. The silicon nano-particles have a size of 1-100 nm. The composite particles contain oxygen and silicon in a molar ratio: O11-18-2010 | |
20130309574 | SILICON OXIDE PARTICLES, MAKING METHOD, LITHIUM ION SECONDARY BATTERY, AND ELECTROCHEMICAL CAPACITOR - Silicon oxide particles each comprising an inner portion having an iron content of 10-1,000 ppm and an outer portion having an iron content of up to 30 ppm are suitable as negative electrode active material in nonaqueous electrolyte secondary batteries. Using a negative electrode comprising the silicon oxide particles as active material, a lithium ion secondary battery or electrochemical capacitor having a high capacity and improved cycle performance can be constructed. | 11-21-2013 |
Koichiro Watanabe, Gunma JP
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20100266902 | NEGATIVE ELECTRODE MATERIAL FOR RECHARGEABLE BATTERY WITH NONAQUEOUS ELECTROLYTE, NEGATIVE ELECTRODE FOR RECHARGEABLE BATTERY WITH NONAQUEOUS ELECTROLYTE, RECHARGEABLE BATTERY WITH NONAQUEOUS ELECTROLYTE, AND PROCESS FOR PRODUCING POLYCRYSTALLINE SILICON PARTICLES FOR ACTIVE MATERIAL FOR NEGATIVE ELECTRODE MATERIAL FOR RECHARGEABLE BATTERY WITH NONAQUEOUS ELECTROLYTE - This invention provides a negative electrode material for a rechargeable battery with a nonaqueous electrolyte, characterized in that the negative electrode material contains polycrystalline silicon particles as an active material, the particle diameter of crystallites of the polycrystalline silicon is not less than 20 nm and not more than 100 nm in terms of a crystallite size determined by the Scherrer method from the full width at half maximum of a diffraction line attributable to Si (111) around 2θ=28.4° in an x-ray diffraction pattern analysis, and the true specific gravity of the silicon particles is 2.300 to 2.320. | 10-21-2010 |
Koichiro Watanabe, Saitama JP
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20100235529 | Contents providing apparatus, contents providing method, playback program for stream contents, and recording medium on which playback program for stream contents is recorded - In situations where content such as music and movies are distributed through the interne, systems, methods and apparatus that provide time information to a transmission target of stream contents, watch the playback condition of a part specified by at least this time information, and make it possible to carry out the playback of the following stream contents. | 09-16-2010 |
Koichiro Watanabe, Niihama JP
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20090252878 | COATING METHOD AND COATING APPARATUS - There is provided a coating method for forming a coat having a less unevenness in its thickness on a sheet-like substrate. | 10-08-2009 |
Koichiro Watanabe, Ehime JP
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20110159347 | SEPARATOR FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY USING THE SAME - A separator | 06-30-2011 |
Koichiro Watanabe, Tokyo JP
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20110299398 | Transmission control apparatus and transmission control method - A transmission control apparatus includes: a communication unit communicating with each of communication apparatuses, which are included in a communication system in which communication is executed via one relay apparatus, via the relay apparatus; a determination unit determining, as a transmission apparatus transmitting content data indicating a content to be transmitted, the apparatus with higher transmission quality between the apparatus and the relay apparatus in the communication system based on quality information of each communication apparatus, which is received by the communication unit and includes information regarding the transmission quality between the relay apparatus and the communication apparatus; and a transmission control unit allowing the transmission apparatus determined by the determination unit to concurrently transmit the content data indicating the content to the respective apparatuses of the communication system excluding the transmission apparatus. | 12-08-2011 |
Koichiro Watanabe, Nasushiobara-Shi JP
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20120014513 | MEDICAL BED APPARATUS - A medical bed apparatus of an embodiment includes: a tiltable top board on which to place an examinee; a photographic mechanism configured to radiograph the examinee; an operation unit which is provided to a lateral side of the top board, and through which at least one of the top board and the photographic mechanism is operated by an operator; and a horizontally-holding mechanism configured to hold the operation unit horizontally when the top board tilts. | 01-19-2012 |
20130003938 | X-RAY IMAGING SYSTEM - In an X-ray imaging system a holding device holds an X-ray imaging unit that performs X-ray imaging of a subject, a bed supports a subject, and a driving unit moves the holding device and the bed. A position detector detects positions of the holding device and the bed either when X-ray imaging is performed and/or when the driving unit has not performed driving for a predetermined time or more. A memory stores positions of the holding device and the bed detected by the position detector in a time series. An operation unit selects positions of the holding device and the bed stored in time series in either a time-series sequence or a reverse time-series sequence. Based on instructions from the operation unit, the controller reads out detection results from the memory and drives the driving unit based on the detection results. | 01-03-2013 |
20130182822 | X-RAY IMAGING APPARATUS AND PROGRAM - According to one embodiment, an X-ray imaging apparatus includes an X-ray generation unit, an X-ray collimator, a dose detection unit, and a dose reduction rate calculation unit. The X-ray generation unit irradiates the object with X-rays. The X-ray collimator limits an X-ray irradiation range of the X-ray generation unit. The dose detection unit detects the X-rays that have passed through the X-ray collimator. The dose reduction rate calculation unit calculates a reduction rate of an exposure dose of the object based on a value detected by the dose detection unit in X-ray imaging before the X-ray irradiation range is limited by the X-ray collimator and a value detected by the dose detection unit in X-ray imaging after the X-ray irradiation range is limited by the X-ray collimator. | 07-18-2013 |
Koichiro Watanabe, Shizuoka-Ken JP
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20120267178 | COOLING SYSTEM FOR ELECTRIC VEHICLE AND COOLING METHOD FOR ELECTRICAL COMPONENT - A cooling system for an electric vehicle is provided, wherein an exhaust air duct extending into a box is disposed in an air outlet of the box disposed in a lower portion of the vehicle interior; an air discharge port of the fan case coupled to the air outlet portion of the cooling duct faces an air inlet of the exhaust air duct with a predetermined gap therebetween in a direction of air flow; and when the air discharge port of the fan case is projected on a plane including the air inlet of the exhaust air duct, the air discharge port of the fan case is opened inside the air inlet of the exhaust air duct and a predetermined gap is formed in a transverse direction to the air flow between the air discharge port of the fan case and the air inlet of the exhaust air duct. | 10-25-2012 |
Koichiro Watanabe, Nabushiobara-Shi JP
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20130156154 | X-RAY DIAGNOSIS APPARATUS AND CONTROL METHOD THEREOF - An X-ray diagnosis apparatus includes a radiography image generating unit, a fluoroscopy image generating unit, a display control unit and an irradiation field changing unit. The radiography image generating unit controls an X-ray irradiation device, an X-ray detection device, a retainer, and a bed system, and generates a radiography image by using a radiography irradiation field. The fluoroscopy image generating unit controls the X-ray irradiation device, the X-ray detection device, the retainer, and the bed system, and generates a fluoroscopy image by using a fluoroscopy irradiation field, the fluoroscopy irradiation field being narrower than the radiography irradiation field. The display control unit generates a superimposed image in which the fluoroscopy image is superimposed on a part of the radiography image, and displays the superimposed image on a display device. The irradiation field changing unit changes the fluoroscopy irradiation field with the superimposed image being displayed. | 06-20-2013 |
Koichiro Watanabe, Shizuoka JP
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20130235526 | ELECTRICAL PART FIXING STRUCTURE FOR HYBRID VEHICLES - A battery charger ( | 09-12-2013 |
Koichiro Watanabe, Niihama-Shi JP
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20140161967 | METHOD FOR PRODUCING LAMINATED POROUS FILM - The present invention provides a method for producing a laminated porous film comprising a porous film substrate and a heat-resistant layer. The method comprises forming a heat-resistant layer mainly comprising a filler on the surface of the porous film substrate by applying a coating slurry comprising a solvent, a binder resin and the filler to the surface of the porous film substrate and then removing the solvent, wherein the coating slurry is prepared so as to have a contact angle of 75° or more with an untreated porous film substrate, and the method comprises conducting surface treatment of a porous film substrate so that the contact angle of the coating slurry with the porous film substrate can be 65° or less before applying the coating slurry to the surface of the porous film substrate. | 06-12-2014 |
Koichiro Watanabe, Nasushiobara JP
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20150078516 | X-RAY DIAGNOSTIC APPARATUS - According to one embodiment, an X-ray diagnostic apparatus includes an X-ray tube, an X-ray detector, an X-ray filter, signal input unit, and an X-ray filter support unit. The X-ray tube generates X-rays. The X-ray detector detects the X-rays transmitted through a subject. The X-ray filter is arranged between the X-ray tube and the object and having an opening. The X-ray filter support unit supports the X-ray filter so as to make the X-ray filter movable in an imaging axis direction of the X-rays. | 03-19-2015 |