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).

  • Patent number: 8956482
    Abstract: 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: Grant
    Filed: March 19, 2012
    Date of Patent: February 17, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shoko Suyama, Yoshiyasu Ito, Shigeki Maruyama, Norihiko Handa
  • Publication number: 20150046066
    Abstract: 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: Application
    Filed: March 5, 2013
    Publication date: February 12, 2015
    Applicants: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takeshi Miyaura, Yoshiyasu Ito, Ryo Suzuki, Toyomori Tsuiki, Naoyuki Yamada
  • Publication number: 20150019110
    Abstract: 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: Application
    Filed: March 5, 2013
    Publication date: January 15, 2015
    Applicants: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ryo Suzuki, Takeshi Miyaura, Yoshiyasu Ito, Toyomori Tsuiki, Naoyuki Yamada
  • Patent number: 8908830
    Abstract: 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: Grant
    Filed: April 12, 2010
    Date of Patent: December 9, 2014
    Assignee: Rigaku Corporation
    Inventors: Kazuhiko Omote, Yoshiyasu Ito
  • Patent number: 8820151
    Abstract: 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: Grant
    Filed: November 25, 2011
    Date of Patent: September 2, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshiyasu Ito, Takeshi Miyaura, Makio Tsuchiyama
  • Patent number: 8689499
    Abstract: 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: Grant
    Filed: July 30, 2013
    Date of Patent: April 8, 2014
    Assignee: Yachiyo Industry Co., Ltd.
    Inventors: Ayumi Mihashi, Yoshiyasu Ito
  • Publication number: 20140069037
    Abstract: 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: Application
    Filed: July 30, 2013
    Publication date: March 13, 2014
    Applicant: Yachiyo Industry Co., Ltd.
    Inventors: Ayumi MIHASHI, Yoshiyasu ITO
  • Patent number: 8632759
    Abstract: 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: Grant
    Filed: January 27, 2012
    Date of Patent: January 21, 2014
    Assignee: Cosmo Oil Co., Ltd.
    Inventor: Yoshiyasu Ito
  • Publication number: 20140013832
    Abstract: 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: Application
    Filed: March 29, 2011
    Publication date: January 16, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Makio Tsuchiyama, Yoshiyasu Ito, Takeshi Miyaura
  • Publication number: 20130344411
    Abstract: 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: Application
    Filed: December 3, 2012
    Publication date: December 26, 2013
    Inventors: Shoko SUYAMA, Yoshiyasu Ito, Shigeo Kasai, Yasuo Takagi, Tsuneji Kameda, Kentaro Matsungaga, Masato Yoshino, Daisuke Horikawa, Kazuya Yamada
  • Publication number: 20130311063
    Abstract: 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: Application
    Filed: February 8, 2011
    Publication date: November 21, 2013
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshiyasu Ito, Takeshi Miyaura, Makio Tsuchiyama
  • Publication number: 20130220006
    Abstract: 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: Application
    Filed: November 25, 2011
    Publication date: August 29, 2013
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshiyasu Ito, Takeshi Miyaura, Makio Tsuchiyama
  • Patent number: 8444281
    Abstract: 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: Grant
    Filed: May 28, 2010
    Date of Patent: May 21, 2013
    Assignee: NEC Toshiba Space Systems, Ltd.
    Inventors: Katsuhiko Tsuno, Shoko Suyama, Yoshiyasu Ito
  • Patent number: 8394543
    Abstract: 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: Grant
    Filed: August 11, 2011
    Date of Patent: March 12, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shoko Suyama, Yoshiyasu Ito, Shigeo Kasai, Yasuo Takagi, Tsuneji Kameda, Kentaro Matsunaga, Masato Yoshino, Daisuke Horikawa, Kazuya Yamada
  • Publication number: 20120323468
    Abstract: 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: Application
    Filed: February 23, 2011
    Publication date: December 20, 2012
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takeshi Miyaura, Yoshiyasu Ito, Makio Tsuchiyama, Yoshihiro Furuya
  • Publication number: 20120267339
    Abstract: 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: Application
    Filed: March 19, 2012
    Publication date: October 25, 2012
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shoko SUYAMA, Yoshiyasu Ito, Shigeki Maruyama, Norihiko Handa
  • Publication number: 20120208100
    Abstract: 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: Application
    Filed: August 11, 2011
    Publication date: August 16, 2012
    Inventors: Shoko SUYAMA, Yoshiyasu Ito, Shigeo Kasai, Yasuo Takagi, Tsuneji Kameda, Kentaro Matsunaga, Masato Yoshino, Daisuke Horikawa, Kazuya Yamada
  • Publication number: 20120122974
    Abstract: 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: Application
    Filed: January 27, 2012
    Publication date: May 17, 2012
    Applicant: COSMO OIL CO., LTD.
    Inventor: Yoshiyasu ITO
  • Patent number: 8133479
    Abstract: 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: Grant
    Filed: July 6, 2004
    Date of Patent: March 13, 2012
    Assignee: Cosmo Oil Co., Ltd.
    Inventor: Yoshiyasu Ito
  • Patent number: 7953540
    Abstract: 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: Grant
    Filed: February 6, 2007
    Date of Patent: May 31, 2011
    Assignees: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Yoshiyasu Ito, Yuji Narita