Patents by Inventor Yoshiyasu Ito
Yoshiyasu Ito has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8956482Abstract: A ceramics composite member includes a structure in which a first ceramic member and a second ceramic member are integrated with a joint portion. The joint portion has a texture in which a silicon phase having an average diameter of 0.05 ?m or more and 10 ?m or less is continuously provided in a network form in interstices of silicon carbide particles having an average particle diameter of 0.1 ?m or more and 0.1 mm or less.Type: GrantFiled: March 19, 2012Date of Patent: February 17, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Shoko Suyama, Yoshiyasu Ito, Shigeki Maruyama, Norihiko Handa
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Publication number: 20150046066Abstract: An electronic control unit, in an idle operating state, detects a crankshaft rotation fluctuation in each cylinder using a crank angle sensor, and updates an individual correction value for a control value for each fuel injection valve as a first learned value such that a degree of deviation in the crankshaft rotation fluctuation among the cylinders reduces. The electronic control unit uses a fuel pressure sensor to detect a manner of a fuel pressure fluctuation with fuel injection by each fuel injection valve, and updates an individual correction value for a control value for each fuel injection valve as a second learned value based on a result of comparison between a detected temporal waveform and a basic temporal waveform. In an idle operating state, a learning rate of the second learned value is reduced until the first learned value converges for the first time as compared with after its convergence.Type: ApplicationFiled: March 5, 2013Publication date: February 12, 2015Applicants: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takeshi Miyaura, Yoshiyasu Ito, Ryo Suzuki, Toyomori Tsuiki, Naoyuki Yamada
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Publication number: 20150019110Abstract: An electronic control unit detects a manner of fluctuation of a fuel pressure with injection of fuel by a fuel injection valve with the use of a fuel pressure sensor, and calculates a tendency of deviation of an actual fuel injection characteristic of the fuel injection valve with respect to a basic fuel injection characteristic on the basis of a result of comparison between a detected temporal waveform and a basic temporal waveform. The tendency of deviation is reflected at a predetermined reflection rate (R) at the time of updating a learned value (Gij) for compensating for an individual difference of the fuel injection valve. The predetermined reflection rate (R) is increased when an accumulated value (D) of a vehicle travel distance is shorter than a predetermined value (Dth) as compared with when the accumulated value (D) is longer than or equal to the predetermined value (Dth).Type: ApplicationFiled: March 5, 2013Publication date: January 15, 2015Applicants: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Ryo Suzuki, Takeshi Miyaura, Yoshiyasu Ito, Toyomori Tsuiki, Naoyuki Yamada
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Patent number: 8908830Abstract: There is provided a surface microstructure measurement method, a surface microstructure measurement data analysis method, and an X-ray scattering measurement device which can accurately measure a microstructure on a surface and which can evaluate a three-dimensional structural feature. In the surface microstructure measurement method, the specimen surface is irradiated with X-ray at a grazing incident angle and a scattering intensity is measured; a specimen model with a microstructure on a surface in which one or more layers is formed in a direction perpendicular to the surface and unit structures are periodically arranged in a direction parallel to the surface within the layers is assumed; a scattering intensity of X-ray scattered by the microstructure is calculated in consideration of effects of refraction and reflection caused by the layer; and the scattering intensity of X-ray calculated by the specimen model is fitted to the measured scattering intensity.Type: GrantFiled: April 12, 2010Date of Patent: December 9, 2014Assignee: Rigaku CorporationInventors: Kazuhiko Omote, Yoshiyasu Ito
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Patent number: 8820151Abstract: A cetane number estimation apparatus injects fuel from a fuel injection valve in a diesel engine based on a target fuel injection amount, calculates an indicator of output torque of the diesel engine produced through fuel injection, and estimates the cetane number of the fuel using the calculated indicator. The cetane number estimation apparatus includes a pressure sensor for detecting fuel pressure varied by variation in actual fuel pressure in the fuel injection valve at the time of the fuel injection. The cetane number estimation apparatus also has a pressure correcting section that is adapted to calculate actual operating characteristics of the fuel injection valve based on a variation waveform of the detected fuel pressure and corrects the target fuel injection amount based on the difference between the calculated actual operating characteristics and prescribed reference operating characteristics.Type: GrantFiled: November 25, 2011Date of Patent: September 2, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yoshiyasu Ito, Takeshi Miyaura, Makio Tsuchiyama
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Patent number: 8689499Abstract: A double glazed window glass structure includes a frame defining an outer perimeter of the window glass structure, and first and second sheet glasses mounted on respective sides of the frame to define a heat insulation space therebetween. The frame includes an outer frame portion and an inner frame portion extending from an inner surface of the outer frame portion toward an inside of the frame. The inner frame portion has first and second sheet glass receiving surfaces bonded to the first and second sheet glasses, respectively. The inner frame portion is provided with a groove having an opening that opens in the second sheet glass receiving surface, the groove containing a drying agent therein, and a communication passage allowing only a fluid to flow between the groove and the heat insulation space. The opening of the groove is closed by the second sheet glass.Type: GrantFiled: July 30, 2013Date of Patent: April 8, 2014Assignee: Yachiyo Industry Co., Ltd.Inventors: Ayumi Mihashi, Yoshiyasu Ito
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Publication number: 20140069037Abstract: A double glazed window glass structure includes a frame defining an outer perimeter of the window glass structure, and first and second sheet glasses mounted on respective sides of the frame to define a heat insulation space therebetween. The frame includes an outer frame portion and an inner frame portion extending from an inner surface of the outer frame portion toward an inside of the frame. The inner frame portion has first and second sheet glass receiving surfaces bonded to the first and second sheet glasses, respectively. The inner frame portion is provided with a groove having an opening that opens in the second sheet glass receiving surface, the groove containing a drying agent therein, and a communication passage allowing only a fluid to flow between the groove and the heat insulation space. The opening of the groove is closed by the second sheet glass.Type: ApplicationFiled: July 30, 2013Publication date: March 13, 2014Applicant: Yachiyo Industry Co., Ltd.Inventors: Ayumi MIHASHI, Yoshiyasu ITO
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Patent number: 8632759Abstract: The object of the present invention is to provide a hair restorer which exhibits a stimulatory effect on hair restoration against hair loss, hair thinning, split ends, hair graying, etc., with higher stability and safety than those of known hair restorers containing 5-aminolevulinic acids as active components. By using 5-aminolevulinic acid or its salt or its derivative, and a composition containing iron sodium diethylenetriaminepentaacetate or iron ammonium diethylenetriaminepentaacetate as active components, a hair restorer and a method for restoring hair which are excellent in hair growth promotion, and stability and safety, are provided.Type: GrantFiled: January 27, 2012Date of Patent: January 21, 2014Assignee: Cosmo Oil Co., Ltd.Inventor: Yoshiyasu Ito
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Publication number: 20140013832Abstract: In order to estimate the cetane number of a fuel, fuel injection is executed by controlling the driving of a fuel injection valve by a prescribed amount. The amount of change in the rotation of a diesel engine generated in response to the fuel injection is detected, and the cetane number of the fuel is estimated on the basis of this amount of change in the rotation. The actual amount of fuel injected from the fuel injection valve is detected, and when the difference between the amount actually detected and the prescribed amount is equal to or greater than a threshold value, the execution of the fuel cetane number estimation process is restricted.Type: ApplicationFiled: March 29, 2011Publication date: January 16, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Makio Tsuchiyama, Yoshiyasu Ito, Takeshi Miyaura
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Publication number: 20130344411Abstract: In one embodiment, an electrical power storage system using hydrogen includes a power generation unit generating power using hydrogen and oxidant gas and an electrolysis unit electrolyzing steam. The electrical power storage system includes a hydrogen storage unit storing hydrogen generated by the electrolysis and supplying the hydrogen to the power generation unit during power generation, a high-temperature heat storage unit storing high temperature heat generated accompanying the power generation and supplying the heat to the electrolysis unit during the electrolysis, and a low-temperature heat storage unit storing low-temperature heat, which is exchanged in the high-temperature heat storage unit and generating with this heat the steam supplied to the electrolysis unit.Type: ApplicationFiled: December 3, 2012Publication date: December 26, 2013Inventors: Shoko SUYAMA, Yoshiyasu Ito, Shigeo Kasai, Yasuo Takagi, Tsuneji Kameda, Kentaro Matsungaga, Masato Yoshino, Daisuke Horikawa, Kazuya Yamada
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Publication number: 20130311063Abstract: An electronic control unit detects an index value of an amount of generated heat of fuel to be combusted in a diesel engine. The electronic control unit also executes the injection of a predetermined amount of the fuel to estimate a cetane number of the fuel and calculates an index value of output torque of the diesel engine generated with that execution. Then, the electronic control unit calculates an estimated value of the cetane number of the fuel based on the index value of the output torque and the index value of the amount of generated heat.Type: ApplicationFiled: February 8, 2011Publication date: November 21, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshiyasu Ito, Takeshi Miyaura, Makio Tsuchiyama
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Publication number: 20130220006Abstract: A cetane number estimation apparatus injects fuel from a fuel injection valve in a diesel engine based on a target fuel injection amount, calculates an indicator of output torque of the diesel engine produced through fuel injection, and estimates the cetane number of the fuel using the calculated indicator. The cetane number estimation apparatus includes a pressure sensor for detecting fuel pressure varied by variation in actual fuel pressure in the fuel injection valve at the time of the fuel injection. The cetane number estimation apparatus also has a pressure correcting section that is adapted to calculate actual operating characteristics of the fuel injection valve based on a variation waveform of the detected fuel pressure and corrects the target fuel injection amount based on the difference between the calculated actual operating characteristics and prescribed reference operating characteristics.Type: ApplicationFiled: November 25, 2011Publication date: August 29, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshiyasu Ito, Takeshi Miyaura, Makio Tsuchiyama
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Patent number: 8444281Abstract: An optical device has a reflecting mirror using a particle-dispersed silicon material including silicon carbide and silicon. The reflecting mirror includes a plurality of segments joined to each other by reaction sintering. Producing the segments is easy in comparison with that of a reflecting mirror of one piece. Accordingly, it is possible to reduce probability of breakage of the segments and to shorten process time of production of a reflecting mirror.Type: GrantFiled: May 28, 2010Date of Patent: May 21, 2013Assignee: NEC Toshiba Space Systems, Ltd.Inventors: Katsuhiko Tsuno, Shoko Suyama, Yoshiyasu Ito
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Patent number: 8394543Abstract: In one embodiment, an electrical power storage system using hydrogen includes a power generation unit generating power using hydrogen and oxidant gas and an electrolysis unit electrolyzing steam. The electrical power storage system includes a hydrogen storage unit storing hydrogen generated by the electrolysis and supplying the hydrogen to the power generation unit during power generation, a high-temperature heat storage unit storing high temperature heat generated accompanying the power generation and supplying the heat to the electrolysis unit during the electrolysis, and a low-temperature heat storage unit storing low-temperature heat, which is exchanged in the high-temperature heat storage unit and generating with this heat the steam supplied to the electrolysis unit.Type: GrantFiled: August 11, 2011Date of Patent: March 12, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Shoko Suyama, Yoshiyasu Ito, Shigeo Kasai, Yasuo Takagi, Tsuneji Kameda, Kentaro Matsunaga, Masato Yoshino, Daisuke Horikawa, Kazuya Yamada
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Publication number: 20120323468Abstract: This apparatus is applied to an engine equipped with a fuel supply system that supplies pressure-increased fuel to a fuel injection valve, and performs the fuel injection from the injection valve in one combustion cycle by a multiple injection process that includes a pre-injection and a main injection that are executed with an interval therebetween. The apparatus calculates a deviation between a required value (one-dot chain line) and an actual value (solid line) regarding the end timing of the pre-injection, based on the manner of fluctuation of the fuel pressure in the fuel injection that is detected by a pressure sensor. A target main injection timing and a target pre-interval are individually set on the basis of the state of operation of the engine. Based on the deviation, the target main injection timing and the target pre-interval, the apparatus sets control target values regarding the execution period of the pre-injection.Type: ApplicationFiled: February 23, 2011Publication date: December 20, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takeshi Miyaura, Yoshiyasu Ito, Makio Tsuchiyama, Yoshihiro Furuya
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Publication number: 20120267339Abstract: A ceramics composite member includes a structure in which a first ceramic member and a second ceramic member are integrated with a joint portion. The joint portion has a texture in which a silicon phase having an average diameter of 0.05 ?m or more and 10 ?m or less is continuously provided in a network form in interstices of silicon carbide particles having an average particle diameter of 0.1 ?m or more and 0.1 mm or less.Type: ApplicationFiled: March 19, 2012Publication date: October 25, 2012Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Shoko SUYAMA, Yoshiyasu Ito, Shigeki Maruyama, Norihiko Handa
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Publication number: 20120208100Abstract: In one embodiment, an electrical power storage system using hydrogen includes a power generation unit generating power using hydrogen and oxidant gas and an electrolysis unit electrolyzing steam. The electrical power storage system includes a hydrogen storage unit storing hydrogen generated by the electrolysis and supplying the hydrogen to the power generation unit during power generation, a high-temperature heat storage unit storing high temperature heat generated accompanying the power generation and supplying the heat to the electrolysis unit during the electrolysis, and a low-temperature heat storage unit storing low-temperature heat, which is exchanged in the high-temperature heat storage unit and generating with this heat the steam supplied to the electrolysis unit.Type: ApplicationFiled: August 11, 2011Publication date: August 16, 2012Inventors: Shoko SUYAMA, Yoshiyasu Ito, Shigeo Kasai, Yasuo Takagi, Tsuneji Kameda, Kentaro Matsunaga, Masato Yoshino, Daisuke Horikawa, Kazuya Yamada
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Publication number: 20120122974Abstract: The object of the present invention is to provide a hair restorer which exhibits a stimulatory effect on hair restoration against hair loss, hair thinning, split ends, hair graying, etc., with higher stability and safety than those of known hair restorers containing 5-aminolevulinic acids as active components. By using 5-aminolevulinic acid or its salt or its derivative, and a composition containing iron sodium diethylenetriaminepentaacetate or iron ammonium diethylenetriaminepentaacetate as active components, a hair restorer and a method for restoring hair which are excellent in hair growth promotion, and stability and safety, are provided.Type: ApplicationFiled: January 27, 2012Publication date: May 17, 2012Applicant: COSMO OIL CO., LTD.Inventor: Yoshiyasu ITO
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Patent number: 8133479Abstract: The object of the present invention is to provide a hair restorer which exhibits a stimulatory effect on hair restoration against hair loss, hair thinning, split ends, hair graying, etc., with higher stability and safety than those of known hair restorers containing 5-aminolevulinic acids as active components. By using 5-aminolevulinic acid or its salt or its derivative, and a composition containing iron sodium diethylenetriaminepentaacetate or iron ammonium diethylenetriaminepentaacetate as active components, a hair restorer and a method for restoring hair which are excellent in hair growth promotion, and stability and safety, are provided.Type: GrantFiled: July 6, 2004Date of Patent: March 13, 2012Assignee: Cosmo Oil Co., Ltd.Inventor: Yoshiyasu Ito
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Patent number: 7953540Abstract: An intake passage of a V diesel engine 10 has a pair of distributing lines 19L, 19R connected to corresponding banks 11L, 11R, a converging line 16 that connects the distributing lines 19L, 19R to each other, and a pair of branch lines 15L, 15R branched from the converging line 16 and extending upstream. Boost pressure changing mechanisms 50L, 50R, air intake throttle valves 51L, 51R, and exhaust flow rate adjusting valves 52L, 52R are provided in correspondence with the branch lines 15L, 15R and inlet lines 13L, 13R. A control section 41 controls operation of each of these actuators in accordance with a common target control value.Type: GrantFiled: February 6, 2007Date of Patent: May 31, 2011Assignees: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Toyota JidoshokkiInventors: Yoshiyasu Ito, Yuji Narita