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).
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Publication number: 20240245943Abstract: A fire extinguishing system comprises a first fire extinguishing part 10 that supplies a fire extinguishing agent to a protection target 90; and a second fire extinguishing part 20 that sprays water to an evacuation route 110. An activation temperature of the second fire extinguishing part 20 may be lower than an activation temperature of the first fire extinguishing part 10. The fire extinguishing system may further comprise a third fire extinguishing part 30 that sprays water to the protection target 90, wherein the third fire extinguishing part 30 may spray water after starting supply of the fire extinguishing agent by the first fire extinguishing part 10, and wherein the third fire extinguishing part 30 may be activated when the first fire extinguishing part 10 cannot extinguish a fire.Type: ApplicationFiled: January 19, 2024Publication date: July 25, 2024Applicant: SENJU SPRINKLER CO., LTD.Inventors: Ryoichi SUZUKI, Kazushi TAKAHASHI, Koki SATO, Takao HATAKEYAMA
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Patent number: 10903754Abstract: 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: GrantFiled: December 19, 2017Date of Patent: January 26, 2021Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Ayumu Hatanaka, Takeshi Seki, Kazushi Takahashi, Kenji Ohshima
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Patent number: 10883533Abstract: 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: GrantFiled: May 25, 2017Date of Patent: January 5, 2021Assignee: JTEKT CORPORATIONInventors: Takeshi Koyama, Kazushi Takahashi
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Publication number: 20190356238Abstract: 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: ApplicationFiled: December 19, 2017Publication date: November 21, 2019Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Ayumu HATANAKA, Takeshi SEKI, Kazushi TAKAHASHI, Kenji OHSHIMA
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Patent number: 10132540Abstract: 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: GrantFiled: April 19, 2016Date of Patent: November 20, 2018Assignee: TGK CO., LTDInventor: Kazushi Takahashi
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Patent number: 10012349Abstract: 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: GrantFiled: March 31, 2015Date of Patent: July 3, 2018Assignee: TATSUNO CORPORATIONInventors: Kazushi Takahashi, Tsuyoshi Koike, Takeshi Ozeki
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Publication number: 20170350440Abstract: 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: ApplicationFiled: May 25, 2017Publication date: December 7, 2017Applicant: JTEKT CORPORATIONInventors: Takeshi KOYAMA, Kazushi TAKAHASHI
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Patent number: 9803770Abstract: 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: GrantFiled: November 11, 2015Date of Patent: October 31, 2017Assignee: TGK CO., LTD.Inventors: Kazushi Takahashi, Tomohiro Yuasa, Yuto Ooe
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Publication number: 20170009939Abstract: 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: ApplicationFiled: March 31, 2015Publication date: January 12, 2017Applicant: TATSUNO CORPORATIONInventors: Kazushi TAKAHASHI, Tsuyoshi KOIKE, Takeshi OZEKI
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Publication number: 20160313037Abstract: 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: ApplicationFiled: April 19, 2016Publication date: October 27, 2016Inventor: Kazushi Takahashi
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Patent number: 9366353Abstract: 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: GrantFiled: March 26, 2014Date of Patent: June 14, 2016Assignee: TGK CO., LTDInventors: Yuto Ooe, Kazushi Takahashi, Tomohiro Yuasa
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Publication number: 20160146366Abstract: 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: ApplicationFiled: November 11, 2015Publication date: May 26, 2016Inventors: Kazushi Takahashi, Tomohira Yuasa, Yuto Ooe
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Publication number: 20140291562Abstract: 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: ApplicationFiled: March 26, 2014Publication date: October 2, 2014Applicant: TGK CO., LTD.Inventors: Yuto Ooe, Kazushi Takahashi, Tomohiro Yuasa
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Patent number: 8338149Abstract: 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: GrantFiled: November 21, 2008Date of Patent: December 25, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventors: Satoshi Saitoh, Kazushi Takahashi, Kayo Miyata
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Publication number: 20110250665Abstract: 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: ApplicationFiled: November 21, 2008Publication date: October 13, 2011Applicant: Toyota Jidosha Kabushiki KaishaInventors: Satoshi Saitoh, Kazushi Takahashi, Kayo Miyata
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Publication number: 20100190223Abstract: 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: ApplicationFiled: August 1, 2008Publication date: July 29, 2010Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Satoshi Saito, Kazushi Takahashi, Kayo Miyata, Akihiko Kondo
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Patent number: 7218685Abstract: 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: GrantFiled: March 13, 2003Date of Patent: May 15, 2007Assignee: Hitachi Kokusai Electric Inc.Inventors: Teruji Ide, Kazuo Akaike, Kazushi Takahashi, Manabu Nakamura
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Publication number: 20030179837Abstract: 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: ApplicationFiled: March 13, 2003Publication date: September 25, 2003Inventors: Teruji Ide, Kazuo Akaike, Kazushi Takahashi, Manabu Nakamura
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Patent number: 6575352Abstract: 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: GrantFiled: July 24, 2001Date of Patent: June 10, 2003Assignee: Senju Metal Industry, Co., Ltd.Inventors: Kazushi Takahashi, Hiroshi Ohuchi
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Publication number: 20020011511Abstract: 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: ApplicationFiled: July 24, 2001Publication date: January 31, 2002Inventors: Kazushi Takahashi, Hiroshi Ohuchi