Patents by Inventor Kaoru Nomichi

Kaoru Nomichi 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: 9976653
    Abstract: A sliding seal seals an annular gap between a first member and a second member to separate a high-pressure side and a low-pressure side from each other, the first member being movable relative to the second member. The sliding seal is provided at an annular attaching groove provided at the second member. The sliding seal includes: a pressure fluid seal configured to slidingly contact a sliding surface of the first member; and a lubricant holding piece provided at the high-pressure side of the pressure fluid seal, a lubricant storage space being formed between the lubricant holding piece and the pressure fluid seal.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: May 22, 2018
    Assignees: KAWASAKI JUKOGYO KABUSHIKI KAISHA, NISSAN MOTOR CO., LTD.
    Inventors: Yutaka Suzuki, Kaoru Nomichi, Makoto Ninomiya, Mikiya Shinohara, Akinobu Moriyama
  • Patent number: 9933074
    Abstract: A sliding seal seals an annular gap between a first member and a second member to separate a high-pressure side and a low-pressure side from each other, the first member being movable relative to the second member. The sliding seal is provided at an annular attaching groove provided at the second member. The sliding seal includes: a pressure fluid seal configured to slidingly contact a sliding surface of the first member; and a lubricant holding piece provided at the high-pressure side of the pressure fluid seal, a lubricant storage space being formed between the lubricant holding piece and the pressure fluid seal.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: April 3, 2018
    Assignees: KAWASAKI JUKOGYO KABUSHIKI KAISHA, NISSAN MOTOR CO., LTD.
    Inventors: Yutaka Suzuki, Kaoru Nomichi, Makoto Ninomiya, Mikiya Shinohara, Akinobu Moriyama
  • Patent number: 9831507
    Abstract: A hydrogen gas supply device supplies hydrogen gas to a fuel cell stack and includes an electromagnetic pressure regulating valve that regulates the pressure of the hydrogen gas to low pressure. The electromagnetic pressure regulating valve includes a housing, and a valve passage connecting a primary port and a secondary port is formed in the housing. A valve body controls an opening degree of the valve passage and is provided in the housing. A high-pressure sealing member and low-pressure sealing member are provided on an outer periphery of the valve body. The high-pressure sealing member and the low-pressure sealing member are provided in this order from one end side of the valve body to the other end side thereof. The electromagnetic pressure regulating valve further includes a housing pressure equalizing passage connecting the secondary port and a buffer chamber formed between the high-pressure sealing member and the low-pressure sealing member.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: November 28, 2017
    Assignees: KAWASAKI JUKOGYO KABUSHIKI KAISHA, NISSAN MOTOR CO., LTD.
    Inventors: Kaoru Nomichi, Yutaka Suzuki, Makoto Ninomiya, Mikiya Shinohara, Masato Odashima
  • Patent number: 9702473
    Abstract: A fusible plug type pressure relief valve includes a housing, a valve element, a spring member, and a fusible piece. A valve passage is formed in the housing. A valve element is arranged at a closed position in the housing, the closed position being a position at which the valve element closes the valve passage. The valve element is movable to an open position at which the valve element opens the valve passage. The spring member presses the valve element in an open direction. The fusible piece supports the valve element against pressing force of the spring member. The fusible piece melts at not less than a predetermined melting temperature. An inner surface of a concave portion of the fusible piece contacts the valve element. The concave portion includes a tapered portion inclined relative to an axis line of the valve element.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: July 11, 2017
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Kaoru Nomichi, Yutaka Suzuki, Makoto Ninomiya
  • Patent number: 9404621
    Abstract: The present invention includes: a valve main body including a filling port through which a fuel gas is filled in a tank and an output port through which the fuel gas in the tank is output; and a jet flow deflection piece through which the fuel gas to be filled through the filling port is ejected at a predetermined angle relative to an axial direction of the tank. The jet flow deflection piece includes: a fuel ejecting portion including an ejection port through which the fuel gas is ejected into the tank; and a temperature measuring portion in which a temperature sensor configured to measure a temperature of the fuel gas to be filled in the tank is provided. Thus, the temperature of the fuel gas when filling the fuel tank with the fuel gas can be precisely measure and monitored.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: August 2, 2016
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Yutaka Suzuki, Kaoru Nomichi, Makoto Ninomiya
  • Publication number: 20160208954
    Abstract: A valve device includes main valve element and pilot valve element. The main valve element divides valve element space of housing into first pressure chamber and second pressure chamber. The pilot valve element is provided in the second pressure chamber. In one example, first pilot passage including first restrictor extends from primary passage to the second pressure chamber, and second pilot passage including second restrictor is formed at the main valve element. The main valve element and the pilot valve element are coupled to each other by pin, and gap is formed between the pin and one of the main valve element and the pilot valve element. The pilot valve element opens and closes the second pilot passage by biasing member and drive mechanism. The main valve element is driven so as to open the secondary passage by differential pressure between the first pressure chamber and the second pressure chamber.
    Type: Application
    Filed: August 21, 2014
    Publication date: July 21, 2016
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Noboru ITO, Makoto NINOMIYA, Kaoru NOMICHI, Kodai KATOH, Katsu YOSHIDA
  • Patent number: 9347580
    Abstract: A valve device of the present invention includes: a main valve body interposed between a first pressure chamber of a main passage and a second pressure chamber; and a pilot valve body provided in the second pressure chamber. A first pilot passage including a first restrictor extends from an outside of a housing or a primary passage to the second pressure chamber, and a second pilot passage including a second restrictor is formed at the main valve body. The pilot valve body is maintained at a first operation position by a pilot valve body biasing member and is caused to move to a second operation position by a valve body driving unit. When the pilot valve body is located at the second operation position, the main valve body is caused to move to an open position by a pressure difference between the first pressure chamber and the second pressure chamber.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: May 24, 2016
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Makoto Ninomiya, Kaoru Nomichi, Tadahiko Kuroda, Yutaka Suzuki
  • Publication number: 20160010758
    Abstract: A fusible plug type pressure relief valve includes a housing, a valve element, a spring member, and a fusible piece. A valve passage is formed in the housing. A valve element is arranged at a closed position in the housing, the closed position being a position at which the valve element closes the valve passage. The valve element is movable to an open position at which the valve element opens the valve passage. The spring member presses the valve element in an open direction. The fusible piece supports the valve element against pressing force of the spring member. The fusible piece melts at not less than a predetermined melting temperature. An inner surface of a concave portion of the fusible piece contacts the valve element. The concave portion includes a tapered portion inclined relative to an axis line of the valve element.
    Type: Application
    Filed: January 28, 2014
    Publication date: January 14, 2016
    Inventors: Kaoru NOMICHI, Yutaka SUZUKI, Makoto NINOMIYA
  • Patent number: 9234485
    Abstract: The present invention provides a fuel gas supply system of a gas engine capable of supplying to a fuel gas supply unit a fuel gas of constant pressure which fluctuates little. In a fuel gas supply system, a high-pressure tank and a gas injector are connected to each other by a supply passage, and an electromagnetic pressure regulating valve is provided on the supply passage. The electromagnetic pressure regulating valve is configured to regulate the pressure of the gas, flowing through the supply passage, to pressure corresponding to a current supplied to the electromagnetic pressure regulating valve. The gas pressure downstream of the electromagnetic pressure regulating valve is detected by a low-pressure-side pressure sensor. A controller is electrically connected to the electromagnetic pressure regulating valve.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: January 12, 2016
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Makoto Ninomiya, Kaoru Nomichi, Yutaka Suzuki
  • Publication number: 20150345639
    Abstract: A sliding seal seals an annular gap between a first member and a second member to separate a high-pressure side and a low-pressure side from each other, the first member being movable relative to the second member. The sliding seal is provided at an annular attaching groove provided at the second member. The sliding seal includes: a pressure fluid seal configured to slidingly contact a sliding surface of the first member; and a lubricant holding piece provided at the high-pressure side of the pressure fluid seal, a lubricant storage space being formed between the lubricant holding piece and the pressure fluid seal.
    Type: Application
    Filed: November 19, 2013
    Publication date: December 3, 2015
    Inventors: Yutaka SUZUKI, Kaoru NOMICHI, Makoto NINOMIYA, Mikiya SHINOHARA, Akinobu MORIYAMA
  • Patent number: 9194354
    Abstract: A fuel gas supplying and filling system for a fuel gas consuming unit, capable of using a supply passage in both filling and supplying operations and improving the airtightness and reliability of a fill passage. A high-pressure tank and a fuel gas consuming unit are connected to each other by a supply passage, and an electromagnetic pressure regulating valve is provided on the supply passage. An electromagnetic on-off valve is provided between the electromagnetic pressure regulating valve and the high-pressure tank. A fill passage is connected to a portion of the supply passage, the portion being located between the electromagnetic pressure regulating valve and the electromagnetic on-off valve. The fill passage is configured such that the high-pressure fuel gas can be supplied through a filling opening. When the high-pressure fuel gas is introduced to a downstream side of the electromagnetic on-off valve, the electromagnetic on-off valve opens the supply passage.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: November 24, 2015
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Makoto Ninomiya, Kaoru Nomichi, Yutaka Suzuki
  • Patent number: 9141115
    Abstract: The present invention provides a pressure reducing valve having excellent responsiveness, durability, and reliability and stable output characteristics. A pressure reducing valve includes a housing, and the housing includes a valve passage connected to a primary port and a secondary port. A valve element is provided in the housing. The valve element can adjust an opening degree of the valve passage by moving between a closed position where the valve element closes the valve passage and an open position where the valve element opens the valve passage. The valve element is pressed toward the closed position by secondary pressure. A spring member is provided to bias the valve element toward the open position against the secondary pressure. Further, a rolling bearing is provided on the valve element, and the valve element is movably supported by the rolling bearing.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: September 22, 2015
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Makoto Ninomiya, Kaoru Nomichi, Yutaka Suzuki
  • Patent number: 9133949
    Abstract: A valve device includes a valve body and a valve seat body. The valve seat body has a thick cylindrical shape extending in an axis line direction. The valve seat body includes a seal groove on an outer periphery thereof, the seal groove extending in a circumferential direction. The valve seat body includes a large-diameter portion and a small-diameter portion on an inner periphery thereof, the large-diameter and small-diameter portions connected to each other in the axis line direction. The valve seat body includes a valve seat portion between the large-diameter and small-diameter portions, the valve body being seated on the valve seat portion. The position of the seal groove in the axis line direction coincides with the position of the valve seat portion in the axis line direction or is located on a high-pressure side of the position of the valve seat portion in the axis line direction.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: September 15, 2015
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Yutaka Suzuki, Kaoru Nomichi, Makoto Ninomiya
  • Publication number: 20150192213
    Abstract: A valve device includes: a main valve element arranged so as to divide a valve element space of a housing into a first pressure chamber and a second pressure chamber; and a pilot valve element arranged in the second pressure chamber. A first pilot passage including a first restrictor extends from an outside of the housing or the primary passage to the second pressure chamber, and a second pilot passage including a second restrictor is formed at the main valve element. The pilot valve element is biased by a biasing member to close an upstream end of the second pilot passage. When electric power is supplied to a drive unit, the pilot valve element opens the upstream end of the second pilot passage. An excess flow prevention valve including a third restrictor is provided at the second pilot passage so as to be located downstream of the second restrictor.
    Type: Application
    Filed: March 26, 2014
    Publication date: July 9, 2015
    Inventors: Kaoru Nomichi, Makoto Ninomiya, Tadahiko Kuroda, Yutaka Suzuki
  • Patent number: 8960221
    Abstract: An electromagnetic pressure regulating valve includes a valve body and causes a valve body to move by an electromagnetic proportional solenoid to adjust an opening degree of a valve passage, thereby regulating secondary pressure to target pressure. A pressure return chamber is formed in the housing, and a diaphragm seal is provided at the valve body. The diaphragm seal receives the secondary pressure of the pressure return chamber to cause the valve body to move toward a closed position. A bearing member is provided between the valve body and the housing. In a gap between the valve body and the housing, a high-pressure sealing member is provided closer to the valve passage than the bearing member, and a low-pressure sealing member is provided closer to the bearing member than the high-pressure sealing member. A buffer chamber connected to a secondary port is formed between the sealing members.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: February 24, 2015
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Kaoru Nomichi, Yutaka Suzuki, Makoto Ninomiya, Shoji Murakami
  • Publication number: 20140352817
    Abstract: The present invention includes: a valve main body including a filling port through which a fuel gas is filled in a tank and an output port through which the fuel gas in the tank is output; and a jet flow deflection piece through which the fuel gas to be filled through the filling port is ejected at a predetermined angle relative to an axial direction of the tank. The jet flow deflection piece includes: a fuel ejecting portion including an ejection port through which the fuel gas is ejected into the tank; and a temperature measuring portion in which a temperature sensor configured to measure a temperature of the fuel gas to be filled in the tank is provided. Thus, the temperature of the fuel gas when filling the fuel tank with the fuel gas can be precisely measure and monitored.
    Type: Application
    Filed: September 12, 2012
    Publication date: December 4, 2014
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Yutaka Suzuki, Kaoru Nomichi, Makoto Ninomiya
  • Publication number: 20140239207
    Abstract: A valve device of the present invention includes: a main valve body interposed between a first pressure chamber of a main passage and a second pressure chamber; and a pilot valve body provided in the second pressure chamber. A first pilot passage including a first restrictor extends from an outside of a housing or a primary passage to the second pressure chamber, and a second pilot passage including a second restrictor is formed at the main valve body. The pilot valve body is maintained at a first operation position by a pilot valve body biasing member and is caused to move to a second operation position by a valve body driving unit. When the pilot valve body is located at the second operation position, the main valve body is caused to move to an open position by a pressure difference between the first pressure chamber and the second pressure chamber.
    Type: Application
    Filed: February 26, 2014
    Publication date: August 28, 2014
    Inventors: Makoto NINOMIYA, Kaoru NOMICHI, Tadahiko KURODA, Yutaka SUZUKI
  • Patent number: 8752807
    Abstract: A seat block capable of maintaining a well-fitted state of a seat portion in a simple and reliable manner regardless of use conditions. A seat portion base body (43) is provided in a housing (67) provided with a valve passage (66) and allows a piston (28) for opening and closing a valve passage (66) to be pressed on the seat portion base body (43). A spring member (23) applies an elastic force to the seat portion base body (43) such that the elastic mechanism (23) cooperates with the housing (67) to retain the seat portion base body (43).
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: June 17, 2014
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Kaoru Nomichi, Yutaka Suzuki, Makoto Ninomiya, Yuko Funakubo
  • Patent number: 8567792
    Abstract: A resin sub-seal member (11) provided with a concave groove (16) is disposed at a region closer to a higher-pressure side region than a rubber main seal member (10) and pressure variation in a gas on a higher-pressure side is inhibited from being transmitted to the main seal member (10). Further, a variation reducing space (13) is formed between the seal members (10) and (11) to be able to reduce the pressure variation when gas leakage in the sub-seal member (11) occurs or the sub-seal member (11) responds with a delay with respect to the pressure variation. Thus, rapid change in the pressure of the gas surrounding the main seal member (10) is inhibited, occurrence of the blistering phenomenon is inhibited, and a high seal ability is achieved. The seal structure is formed by a simple structure including the seal members (10) and (11), and the variation reducing space (13).
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: October 29, 2013
    Assignee: Kawasaki Jukogyo Kaisha Kabusiha
    Inventors: Kaoru Nomichi, Seiji Ishii, Makoto Ninomiya, Yasuji Kanou, Hiroshi Aoshiba, Masaki Kawahigashi, Takeo Kozuki
  • Publication number: 20130263942
    Abstract: The present invention provides a pressure reducing valve having excellent responsiveness, durability, and reliability and stable output characteristics. A pressure reducing valve includes a housing, and the housing includes a valve passage connected to a primary port and a secondary port. A valve element is provided in the housing. The valve element can adjust an opening degree of the valve passage by moving between a closed position where the valve element closes the valve passage and an open position where the valve element opens the valve passage. The valve element is pressed toward the closed position by secondary pressure. A spring member is provided to bias the valve element toward the open position against the secondary pressure. Further, a rolling bearing is provided on the valve element, and the valve element is movably supported by the rolling bearing.
    Type: Application
    Filed: October 18, 2011
    Publication date: October 10, 2013
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Makoto Ninomiya, Kaoru Nomichi, Yutaka Suzuki