Patents by Inventor Kazushi Takahashi

Kazushi Takahashi 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: 10903754
    Abstract: A problem to be solved by the present invention is to secure a creepage distance while maintaining miniaturization. A power converter according to the present invention includes a positive electrode side conductor, a negative electrode side conductor, and an insulating member disposed between the positive electrode side conductor and the negative electrode side conductor, in which the positive electrode side conductor or the negative electrode side conductor includes a main surface on a side opposite to a surface in contact with the insulating member, a side surface connected to the surface in contact with the insulating member, and an inclined surface forming an obtuse angle with respect to each of the main surface and the side surface, and the insulating member includes a protrusion formed so as to overlap with the side surface and the inclined surface as viewed in a direction perpendicular to the side surface.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: January 26, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Ayumu Hatanaka, Takeshi Seki, Kazushi Takahashi, Kenji Ohshima
  • Patent number: 10883533
    Abstract: A method of manufacturing a spline telescopic shaft includes a masking step in which, in a prescribed axial-direction region of an intermediate manufacturing product, partial tooth grooves that are equally spaced circumferentially are respectively covered by masking members that are equally spaced circumferentially; a resin coating step in which a resin layer is formed, and inner surfaces of the partial tooth grooves covered by the masking members are left as metal exposed portions that are equally spaced circumferentially; and a coating film forming step in which, in a state where the intermediate manufacturing product provided with the resin layer is centered with respect to a broach via the metal exposed portions, the intermediate manufacturing product and the broach are caused to slide relative to each other in an axial direction by press-fitting such that the resin layer is shaved to form a resin coating film.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: January 5, 2021
    Assignee: JTEKT CORPORATION
    Inventors: Takeshi Koyama, Kazushi Takahashi
  • Publication number: 20190356238
    Abstract: A problem to be solved by the present invention is to secure a creepage distance while maintaining miniaturization. A power converter according to the present invention includes a positive electrode side conductor, a negative electrode side conductor, and an insulating member disposed between the positive electrode side conductor and the negative electrode side conductor, in which the positive electrode side conductor or the negative electrode side conductor includes a main surface on a side opposite to a surface in contact with the insulating member, a side surface connected to the surface in contact with the insulating member, and an inclined surface forming an obtuse angle with respect to each of the main surface and the side surface, and the insulating member includes a protrusion formed so as to overlap with the side surface and the inclined surface as viewed in a direction perpendicular to the side surface.
    Type: Application
    Filed: December 19, 2017
    Publication date: November 21, 2019
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Ayumu HATANAKA, Takeshi SEKI, Kazushi TAKAHASHI, Kenji OHSHIMA
  • Patent number: 10132540
    Abstract: A motor operated valve apparatus includes: a motor driven valve; a drive unit configured to drive the motor; a control unit configured to control the drive unit; and a communication unit configured to communicate with an external controller. The control unit starts control of the motor operated valve according to a command from the external controller; drives the motor in a valve closing direction at start of the control, detects a load on the motor based on a drive pulse output by the drive unit for driving the motor, and sets a driven state when the detected load reaches a predetermined reference value to be a valve switching point of a valve section; and drives the motor relative to the valve switching point of the valve section to perform control so that an opening degree of the valve section becomes a value corresponding to a control command value.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: November 20, 2018
    Assignee: TGK CO., LTD
    Inventor: Kazushi Takahashi
  • Patent number: 10012349
    Abstract: An LNG filling apparatus that can safely fill LNG in LNG vehicles. A filling apparatus 1 for filling LNG in an in-vehicle tank, the apparatus 1 having a housing 2, a recovery hose 41 and a filling hose 51 separately led from the housing, a recovery mechanism 4 for recovering a natural gas from the in-vehicle tank via the recovery hose, and a filling mechanism 5 for filling LNG to the in-vehicle tank via the filling hose. Separately leading the recovery hose and the filling hose from the housing with these hoses in close proximity to each other allows a range capable of filling that is the overlap range between a connectable range of the recovery hose and a connectable range of the filling hose to be enlarged. A single hose led from the housing can be used for both of the recovery of the natural gas and the filling of the LNG, which prevents tangle of hoses with each other, and enables to fill the LNG in the in-vehicle tank safely.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: July 3, 2018
    Assignee: TATSUNO CORPORATION
    Inventors: Kazushi Takahashi, Tsuyoshi Koike, Takeshi Ozeki
  • Publication number: 20170350440
    Abstract: A method of manufacturing a spline telescopic shaft includes a masking step in which, in a prescribed axial-direction region of an intermediate manufacturing product, partial tooth grooves that are equally spaced circumferentially are respectively covered by masking members that are equally spaced circumferentially; a resin coating step in which a resin layer is formed, and inner surfaces of the partial tooth grooves covered by the masking members are left as metal exposed portions that are equally spaced circumferentially; and a coating film forming step in which, in a state where the intermediate manufacturing product provided with the resin layer is centered with respect to a broach via the metal exposed portions, the intermediate manufacturing product and the broach are caused to slide relative to each other in an axial direction by press-fitting such that the resin layer is shaved to form a resin coating film.
    Type: Application
    Filed: May 25, 2017
    Publication date: December 7, 2017
    Applicant: JTEKT CORPORATION
    Inventors: Takeshi KOYAMA, Kazushi TAKAHASHI
  • Patent number: 9803770
    Abstract: A control valve includes a shaft, a stopper mechanism, and a can. A stator coil is coaxially mounted around the can. Positions in a rotating direction of the rotor and the stator when the shaft is stopped by an operation of the stopper mechanism are set to be reference positions at which magnetic poles of the stator and those of the rotor are opposite to each other. The rotor is configured to be stopped at the reference position by an arrangement of the stopper mechanism. The stator coil is positioned relative to the body according to a positional relation between a fitting part formed on surfaces of the stator and the body attached to each other and an insertion part where the can is inserted into the stator, and magnetic poles of the stator and those of the rotor are made opposite to each other at the reference positions.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: October 31, 2017
    Assignee: TGK CO., LTD.
    Inventors: Kazushi Takahashi, Tomohiro Yuasa, Yuto Ooe
  • Publication number: 20170009939
    Abstract: An LNG filling apparatus that can safely fill LNG in LNG vehicles. A filling apparatus 1 for filling LNG in an in-vehicle tank, the apparatus 1 having a housing 2, a recovery hose 41 and a filling hose 51 separately led from the housing, a recovery mechanism 4 for recovering a natural gas from the in-vehicle tank via the recovery hose, and a filling mechanism 5 for filling LNG to the in-vehicle tank via the filling hose. Separately leading the recovery hose and the filling hose from the housing with these hoses in close proximity to each other allows a range capable of filling that is the overlap range between a connectable range of the recovery hose and a connectable range of the filling hose to be enlarged. A single hose led from the housing can be used for both of the recovery of the natural gas and the filling of the LNG, which prevents tangle of hoses with each other, and enables to fill the LNG in the in-vehicle tank safely.
    Type: Application
    Filed: March 31, 2015
    Publication date: January 12, 2017
    Applicant: TATSUNO CORPORATION
    Inventors: Kazushi TAKAHASHI, Tsuyoshi KOIKE, Takeshi OZEKI
  • Publication number: 20160313037
    Abstract: A motor operated valve apparatus includes: a motor driven valve; a drive unit configured to drive the motor; a control unit configured to control the drive unit; and a communication unit configured to communicate with an external controller. The control unit starts control of the motor operated valve according to a command from the external controller; drives the motor in a valve closing direction at start of the control, detects a load on the motor based on a drive pulse output by the drive unit for driving the motor, and sets a driven state when the detected load reaches a predetermined reference value to be a valve switching point of a valve section; and drives the motor relative to the valve switching point of the valve section to perform control so that an opening degree of the valve section becomes a value corresponding to a control command value.
    Type: Application
    Filed: April 19, 2016
    Publication date: October 27, 2016
    Inventor: Kazushi Takahashi
  • Patent number: 9366353
    Abstract: A control valve according to an embodiment includes: a body having an inlet port, an outlet port, and a valve hole that communicates the inlet port and the outlet port together; a valve element configured to open and close a valve section; a drive mechanism configured to drive the valve element; a stepping motor having both a rotor for operating the drive mechanism and a stator for rotationally driving the rotor; and a can that is a cylindrical member covering a space where the valve element and the drive mechanism are arranged and involving the rotor and that defines a pressure space and a non-pressure space. The can is fixed to the body with a ring screw, and the stator is arranged at an outer circumference of the can and fixed to the body with a screw member.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: June 14, 2016
    Assignee: TGK CO., LTD
    Inventors: Yuto Ooe, Kazushi Takahashi, Tomohiro Yuasa
  • Publication number: 20160146366
    Abstract: A control valve includes a shaft, a stopper mechanism, and a can. A stator coil is coaxially mounted around the can. Positions in a rotating direction of the rotor and the stator when the shaft is stopped by an operation of the stopper mechanism are set to be reference positions at which magnetic poles of the stator and those of the rotor are opposite to each other. The rotor is configured to be stopped at the reference position by an arrangement of the stopper mechanism. The stator coil is positioned relative to the body according to a positional relation between a fitting part formed on surfaces of the stator and the body attached to each other and an insertion part where the can is inserted into the stator, and magnetic poles of the stator and those of the rotor are made opposite to each other at the reference positions.
    Type: Application
    Filed: November 11, 2015
    Publication date: May 26, 2016
    Inventors: Kazushi Takahashi, Tomohira Yuasa, Yuto Ooe
  • Publication number: 20140291562
    Abstract: A control valve according to an embodiment includes: a body having an inlet port, an outlet port, and a valve hole that communicates the inlet port and the outlet port together; a valve element configured to open and close a valve section; a drive mechanism configured to drive the valve element; a stepping motor having both a rotor for operating the drive mechanism and a stator for rotationally driving the rotor; and a can that is a cylindrical member covering a space where the valve element and the drive mechanism are arranged and involving the rotor and that defines a pressure space and a non-pressure space. The can is fixed to the body with a ring screw, and the stator is arranged at an outer circumference of the can and fixed to the body with a screw member.
    Type: Application
    Filed: March 26, 2014
    Publication date: October 2, 2014
    Applicant: TGK CO., LTD.
    Inventors: Yuto Ooe, Kazushi Takahashi, Tomohiro Yuasa
  • Patent number: 8338149
    Abstract: According to the present invention, ethanol production is carried out with the use of cellulose or cellobiose as a starting material at low cost. The method of the present invention comprises the steps of culturing a microorganism that is classified as a species selected from the group consisting of Ogataea dorogensis, Ogataea pini, Ogataea glucozyma, Ogataea neopini, and Ogataea corticis in a medium containing cellobiose; and collecting ethanol from the medium.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: December 25, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Satoshi Saitoh, Kazushi Takahashi, Kayo Miyata
  • Publication number: 20110250665
    Abstract: According to the present invention, ethanol production is carried out with the use of cellulose or cellobiose as a starting material at low cost. The method of the present invention comprises the steps of culturing a microorganism that is classified as a species selected from the group consisting of Ogataea dorogensis, Ogataea pini, Ogataea glucozyma, Ogataea neopini, and Ogataea corticis in a medium containing cellobiose; and collecting ethanol from the medium.
    Type: Application
    Filed: November 21, 2008
    Publication date: October 13, 2011
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Satoshi Saitoh, Kazushi Takahashi, Kayo Miyata
  • Publication number: 20100190223
    Abstract: Yeast for transformation is provided, which enables introduction of a greater number of copies of a target gene or a greater number of types of target genes. A method provided herein comprises the steps of introducing a target gene into yeast for transformation, which has homothallic properties and a plurality of selection markers, and selecting a strain in which the target gene has been introduced based on the selection markers in the yeast for transformation, whereby multiple target genes were introduced owing to the homothallic properties of the yeast for transformation.
    Type: Application
    Filed: August 1, 2008
    Publication date: July 29, 2010
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Satoshi Saito, Kazushi Takahashi, Kayo Miyata, Akihiko Kondo
  • Patent number: 7218685
    Abstract: To solve such a problem of a conventional direct conversion receiver that an image rejection ratio is insufficient owing to analog processing employed to reject an image, the present invention provides such a direct conversion receiver that the image can be rejected by digital signal processing to improve the image rejection ratio and also reduce the hardware load and the processing load. A HILBERT filter of a digital signal processing section shifts a quadrature component digital signal by 90° by HILBERT conversion to provide an output, while a delay circuit delays an in-phase component digital signal by the same delay time as a delay time by the HILBERT filter to provide an output, both of which outputs undergo addition or subtraction at an adder to have the image rejected there and then enter a complex frequency converter, where an offset provided at a local oscillator is removed by frequency conversion processing to output the in-phase component and quadrature component signals.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: May 15, 2007
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Teruji Ide, Kazuo Akaike, Kazushi Takahashi, Manabu Nakamura
  • Publication number: 20030179837
    Abstract: To solve such a problem of a conventional direct conversion receiver that an image rejection ratio is insufficient owing to analog processing employed to reject an image, the present invention provides such a direct conversion receiver that the image can be rejected by digital signal processing to improve the image rejection ratio and also reduce the hardware load and the processing load. A HILBERT filter of a digital signal processing section shifts a quadrature component digital signal by 90° by HILBERT conversion to provide an output, while a delay circuit delays an in-phase component digital signal by the same delay time as a delay time by the HILBERT filter to provide an output, both of which outputs undergo addition or subtraction at an adder to have the image rejected there and then enter a complex frequency converter, where an offset provided at a local oscillator is removed by frequency conversion processing to output the in-phase component and quadrature component signals.
    Type: Application
    Filed: March 13, 2003
    Publication date: September 25, 2003
    Inventors: Teruji Ide, Kazuo Akaike, Kazushi Takahashi, Manabu Nakamura
  • Patent number: 6575352
    Abstract: An automated soldering apparatus includes a conveyor for transporting a printed circuit board along a predetermined path, a fluxer located below the conveyor for coating the circuit board and the electronic components with flux, and a preheater located downstream of the fluxer for heating the circuit board and the electronic components to a predetermined temperature. A molten solder bath is provided downstream of the preheater for applying a molten solder to selected areas of the circuit board. A cooling assembly is arranged downstream of and adjacent to the molten solder bath. The cooling assembly is operable to cool the applied molten solder at a rate of approximately as high as 1.0° C. per second until the molten solder reaches its solidus temperature.
    Type: Grant
    Filed: July 24, 2001
    Date of Patent: June 10, 2003
    Assignee: Senju Metal Industry, Co., Ltd.
    Inventors: Kazushi Takahashi, Hiroshi Ohuchi
  • Publication number: 20020011511
    Abstract: An automated soldering apparatus includes a conveyor for transporting a printed circuit board along a predetermined path, a fluxer located below the conveyor for coating the circuit board and the electronic components with flux, and a preheater located downstream of the fluxer for heating the circuit board and the electronic components to a predetermined temperature. A molten solder bath is provided downstream of the preheater for applying a molten solder to selected areas of the circuit board. A cooling assembly is arranged downstream of and adjacent to the molten solder bath. The cooling assembly is operable to cool the applied molten solder at a rate of approximately as high as 1.0° C. per second until the molten solder reaches its solidus temperature.
    Type: Application
    Filed: July 24, 2001
    Publication date: January 31, 2002
    Inventors: Kazushi Takahashi, Hiroshi Ohuchi
  • Patent number: 5780200
    Abstract: A printing plate material producing concave-convex pattern on the surface with a low laser energy output and having high scratch resistance is provided by formation of a photosensitive layer comprising a nitrocellulose, carbon black or other photoabsorber and a polyurethane elastomer on a support. The nitrocellulose has a nitrogen content of about 11 to 12.5% and a solution viscosity of about 1 to 1/8 second. The polyurethane elastomer is obtainable by allowing a polyester polyol to react with a polyisocyanate and a chain-extending agent. Relative to 100 parts by weight of the polyurethane elastomer, the amount of nitrocellulose is about 5 to 300 parts by weight and that of the photoabsorber is about 0.5 to 50 parts by weight. The photosensitive layer may have a glass transition temperature of not lower than 25.degree. C. The photosensitive layer may further comprise a plasticizer.
    Type: Grant
    Filed: December 18, 1995
    Date of Patent: July 14, 1998
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Tohru Kitaguchi, Kazuo Notsu, Kazushi Takahashi, Masayoshi Furukawa, Shigeki Kambara, Osamu Majima, Soichi Kuwahara