Patents by Inventor Takuma Kanazawa
Takuma Kanazawa 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: 11052763Abstract: An electric apparatus (air pump), which operates by receiving a power supply from a drive control apparatus (PDU) mounted in a fuel cell vehicle, includes a first connection terminal section configured to directly connect to the drive control apparatus, and a second connection terminal section configured to connect to the drive control apparatus via a cable.Type: GrantFiled: October 17, 2019Date of Patent: July 6, 2021Assignee: Honda Motor Co., Ltd.Inventors: Ryoichi Yoshitomi, Takuma Kanazawa
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Patent number: 10998570Abstract: A fuel cell vehicle includes a fuel cell system and an exhaust gas pipe. The fuel cell system includes a fuel cell stack, an oxygen-containing gas supply line, an oxygen-containing gas discharge line, and an air pump. The air pump includes a compressor provided in an oxygen-containing gas supply line, and an expander provided in an oxygen-containing gas discharge line. An air cleaner is provided upstream of the compressor. An exhaust gas pipe is connected to an expander. The air compressor is closer to the air cleaner than the expander is.Type: GrantFiled: June 7, 2019Date of Patent: May 4, 2021Assignee: HONDA MOTOR CO., LTD.Inventor: Takuma Kanazawa
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Publication number: 20200122579Abstract: An electric apparatus (air pump), which operates by receiving a power supply from a drive control apparatus (PDU) mounted in a fuel cell vehicle, includes a first connection terminal section configured to directly connect to the drive control apparatus, and a second connection terminal section configured to connect to the drive control apparatus via a cable.Type: ApplicationFiled: October 17, 2019Publication date: April 23, 2020Inventors: Ryoichi YOSHITOMI, Takuma KANAZAWA
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Publication number: 20190386329Abstract: A fuel cell vehicle includes a fuel cell system and an exhaust gas pipe. The fuel cell system includes a fuel cell stack, an oxygen-containing gas supply line, an oxygen-containing gas discharge line, and an air pump. The air pump includes a compressor provided in an oxygen-containing gas supply line, and an expander provided in an oxygen-containing gas discharge line. An air cleaner is provided upstream of the compressor. An exhaust gas pipe is connected to an expander. The air compressor is closer to the air cleaner than the expander is.Type: ApplicationFiled: June 7, 2019Publication date: December 19, 2019Inventor: Takuma Kanazawa
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Patent number: 8820706Abstract: The on-off valve includes a body having a fluid path, a spherical valve body opening and closing the fluid path, a guide member opposing the valve body and having a flange portion radially extending outward, a first seat member slidable along an outer peripheral surface of the guide member and seating the valve body, an O-ring disposed between the first seat member and the guide member, a chamber formed of an inner wall portion of the fluid path, the outer peripheral surface, the flange portion, and the first seat member, and a spring member disposed in the chamber and urging the first seat member toward the valve body. In the on-off valve, a gap portion is formed between the inner wall portion and the first seat member and connects the valve body side of the fluid path to the chamber.Type: GrantFiled: July 25, 2012Date of Patent: September 2, 2014Assignees: Keihin Corporation, Honda Motor Co., Ltd.Inventors: Hideki Kawauchi, Takuya Wakabayashi, Takuma Kanazawa
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Publication number: 20130026406Abstract: The on-off valve includes a body having a fluid path, a spherical valve body opening and closing the fluid path, a guide member opposing the valve body and having a flange portion radially extending outward, a first seat member slidable along an outer peripheral surface of the guide member and seating the valve body, an O-ring disposed between the first seat member and the guide member, a chamber formed of an inner wall portion of the fluid path, the outer peripheral surface, the flange portion, and the first seat member, and a spring member disposed in the chamber and urging the first seat member toward the valve body. In the on-off valve, a gap portion is formed between the inner wall portion and the first seat member and connects the valve body side of the fluid path to the chamber.Type: ApplicationFiled: July 25, 2012Publication date: January 31, 2013Applicants: HONDA MOTOR CO., LTD., KEIHIN CORPORATIONInventors: Hideki Kawauchi, Takuya Wakabayashi, Takuma Kanazawa
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Publication number: 20120251900Abstract: A fuel cell system is equipped with an expander which is driven by an off-gas exhausted from an oxidant eject path, and which transmits motive power to a compressor, a bypass route in the oxidant eject path which bypasses a humidifier, a flow control valve which changes an opening degree of the bypass route, a voltage sensor which detects an output voltage of the fuel cell stack, a current sensor which detects an output current of the fuel cell stack, and a bypass controlling member which changes a bypass ratio which is a ratio of a magnitude of a flow rate of the off-gas circulating the bypass route with respect to an overall flow rate of the off-gas ejected from the fuel cell stack to the oxidant eject path by the flow control valve according to the output power of the fuel cell stack.Type: ApplicationFiled: March 29, 2012Publication date: October 4, 2012Applicant: HONDA MOTOR CO., LTD.Inventors: Tatsuya SUGAWARA, Tomoki KOBAYASHI, Motohiro SUZUKI, Takuma KANAZAWA, Takuya WAKABAYASHI, Hayato KAJI
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Patent number: 7470479Abstract: A method for warming up a fuel cell system comprising; a fuel cell which generates electric current due to an electrochemical reaction between hydrogen and oxygen, and which supplies the electric current to a load, an air supply pipe for supplying air to the fuel cell as an oxidant gas, an air exhaust pipe for discharging exhaust air from the fuel cell to an atmosphere, a compressor provided on either of air supply pipe and air exhaust pipe, which carries the air and a communication pipe which returns exhaust air to air supply pipe, and which communicates exhaust air pipe with air supply pipe to form a circulation cycle including compressor.Type: GrantFiled: July 6, 2005Date of Patent: December 30, 2008Assignee: Honda Motor Co., Ltd.Inventors: Tomoki Kobayashi, Takuma Kanazawa, Yoshio Nuiya, Hiroshi Shimanuki
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Patent number: 7045229Abstract: A gas-supplying apparatus in a fuel cell comprises a compressor which sucks a supply gas to be supplied to a fuel cell from downstream of said fuel cell, and which compresses an exhaust gas, generated from said supply gas by power generation in the fuel cell, exhausted from the fuel cell, and a heat exchanger which performs heat exchange between said supply gas and said exhaust gas. The apparatus has a simple configuration and improved heat efficiency.Type: GrantFiled: May 30, 2001Date of Patent: May 16, 2006Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Tomoki Kobayashi, Takuma Kanazawa, Yoshio Nuiya
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Patent number: 6968915Abstract: A fuel cell automobile is provided with a fuel cell and an integral module including a drive module, a compression module, and an intercooler. At least one portion of the integral module is mounted to a body of the automobile by way of a mount. Further, a compressed air cooled using the intercooler is supplied to the fuel cell by way of a pipe at least portion of which is made of a resilient member.Type: GrantFiled: March 27, 2003Date of Patent: November 29, 2005Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Narihiro Takagi, Takuma Kanazawa, Koji Katano
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Publication number: 20050260466Abstract: A method for warming up a fuel cell system comprising; a fuel cell which generates electric current due to an electrochemical reaction between hydrogen and oxygen, and which supplies the electric current to a load, an air supply pipe for supplying air to the fuel cell as an oxidant gas, an air exhaust pipe for discharging exhaust air from the fuel cell to an atmosphere, a compressor provided on either of air supply pipe and air exhaust pipe, which carries the air and a communication pipe which returns exhaust air to air supply pipe, and which communicates exhaust air pipe with air supply pipe to form a circulation cycle including compressor.Type: ApplicationFiled: July 6, 2005Publication date: November 24, 2005Inventors: Tomoki Kobayashi, Takuma Kanazawa, Yoshio Nuiya, Hiroshi Shimanuki
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Patent number: 6936359Abstract: An apparatus for warming-up a fuel cell has means for returning an exhaust gas which returns the exhaust gas to the supply gas depending upon the warning-up conditions of the fuel cell at the time when the supply gas is supplied into the fuel cell and it is discharged as the exhaust gas after utilizing the supply gas in the fuel cell.Type: GrantFiled: May 30, 2001Date of Patent: August 30, 2005Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Tomoki Kobayashi, Takuma Kanazawa, Yoshio Nuiya, Hiroshi Shimanuki
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Publication number: 20030186092Abstract: A fuel cell automobile is provided with a fuel cell and an integral module including a drive module, a compressing module, and an intercooler. At least one portion of the integral module is mounted to a body of the automobile by way of a mount. Further, a compressed air cooled using the intercooler is supplied to the fuel cell by way of a pipe member at least portion of which is made by a resilient material.Type: ApplicationFiled: March 27, 2003Publication date: October 2, 2003Applicant: Honda Giken Kogyo Kabushiki KaishaInventors: Narihiro Takagi, Takuma Kanazawa, Koji Katano
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Publication number: 20020006537Abstract: A gas-supplying apparatus in a fuel cell comprises a compressor which sucks a supply gas to be supplied to a fuel cell from downstream of said fuel cell, and which compresses an exhaust gas, generated from said supply gas by power generation in the fuel cell, exhausted from the fuel cell, and a heat exchanger which performs heat exchange between said supply gas and said exhaust gas. The apparatus has a simple configuration and improved heat efficiency.Type: ApplicationFiled: May 30, 2001Publication date: January 17, 2002Inventors: Tomoki Kobayashi, Takuma Kanazawa, Yoshio Nuiya
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Publication number: 20010053469Abstract: An apparatus for warming-up a fuel cell has means for returning an exhaust gas which returns the exhaust gas to the supply gas depending upon the warning-up conditions of the fuel cell at the time when the supply gas is supplied into the fuel cell and it is discharged as the exhaust gas after utilizing the supply gas in the fuel cell.Type: ApplicationFiled: May 30, 2001Publication date: December 20, 2001Applicant: Honda Giken Kogyo Kabushiki KaishaInventors: Tomoki Kobayashi, Takuma Kanazawa, Yoshio Nuiya, Hiroshi Shimanuki