Patents by Inventor Kazunari Nakaya

Kazunari Nakaya 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: 10738909
    Abstract: A fuel tank valve having: a housing that is arranged in a fuel tank and has a communication port communicating with an outside of the fuel tank; and a float valve body that is installed in the housing and closes the communication port when fuel in the housing increases, where a wall part of the housing has an opening part through which the fuel flows in and out, and a projecting part that is formed to correspond to the opening part and projects outwardly from the wall part, and the projecting part is separated above from the opening part by a predetermined distance, is provided.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: August 11, 2020
    Assignees: YACHIYO INDUSTRY CO., LTD., TOYODA GOSEI CO., LTD.
    Inventors: Kazunari Nakaya, Toshinori Seki, Kenichiro Kaneko
  • Publication number: 20200156465
    Abstract: A fuel fill opening structure for a fuel tank includes a fuel filler pipe, a fuel fill opening, and a flow guide. The flow guide includes a main guide wall which partitions a fuel introduction region inside the fuel filler pipe into an upper space communicating with a tank main body side and a lower space communicating with the fuel fill opening side, and a partition wall provided to be continuous with the main guide wall and configured to close a space between an upper surface side of the main guide wall and an inner surface of the fuel filler pipe. The main guide wall includes a bent inclined part that is bent and inclined downward from a middle portion in running from the fuel fill opening side toward the tank main body side. The bent inclined part has a shape in which a width thereof becomes smaller when viewed from above as it inclines downward.
    Type: Application
    Filed: May 31, 2018
    Publication date: May 21, 2020
    Inventors: Yuki Koga, Kazunari Nakaya, Masaki Komada
  • Patent number: 10267275
    Abstract: One embodiment provides a valve device for fuel tank. The valve device includes: a housing in which a valve chamber and a ventilation chamber are divided by a partition wall having a first and second openings; a vapor discharge outlet communicating with the ventilation chamber; first and second float valves vertically movably housed in the valve chamber to close the first and second openings, respectively; and a recess portion defined in a part of the ventilation chamber correspondingly with the first opening. A passage is provided to communicate the discharge outlet with the recess portion. And, a first wall portion is provided around an end of the passage on a side of the recess portion so as to block the fuel that flows out of the second opening into the first opening from heading to the third opening.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: April 23, 2019
    Assignees: PIOLAX, INC., YACHIYO INDUSTRY CO., LTD.
    Inventors: Kenta Mihara, Kazunari Nakaya, Masato Shinozaki, Masaru Sawano
  • Patent number: 10017052
    Abstract: A fuel inlet 10 includes a fuel inlet body 11 that is formed of resin including a reception pipe portion 20, a filler pipe connection pipe portion 30, a breather pipe connection pipe portion 40, and a fluid introduction portion 60. The reception pipe portion 60 receives a fuel nozzle 3. The filler pipe connection pipe portion 30 is located on a lower side of the reception pipe portion 20 and is connected to a filler pipe 31. The breather pipe connection pipe portion 40 is located on an upper side of the reception pipe portion 20 and is connected to a breather pipe 41. The fluid introduction portion 20 causes foamed fluid to flow along an inner wall surface of the reception pipe portion 20 while liquefying the foamed fluid, the foamed fluid flowing from the breather pipe connection pipe portion 40 to the reception pipe portion 20.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: July 10, 2018
    Assignee: Yachiyo Industry Co., Ltd.
    Inventors: Kazunari Nakaya, Naoki Tabuchi, Hironori Koyama
  • Patent number: 9995259
    Abstract: An evaporated fuel processing device includes a liquid level surface detection valve that detects a full-tank liquid level surface when refueling, and closes a canister communication hole; a fuel shutoff valve to close an evaporation hole when a liquid level surface becomes higher than the full-tank liquid level surface; and an outlet port communicating with a canister. A first communication path and a second communication path are formed in a folded back shape folded back at a first valve seat upper part in plan view. The first communication path enables communication between the first valve seat upper part and a second valve seat upper part, and the second communication path enables communication between the first valve seat upper part and the outlet port. This constitution reduces fuel liquid leakage from the outlet port.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: June 12, 2018
    Assignee: YACHIYO INDUSTRY CO., LTD.
    Inventors: Toru Matsuzaki, Kazunari Nakaya, Masato Shinozaki, Masaru Sawano
  • Patent number: 9981546
    Abstract: A fuel tank valve device includes a housing in which a partition wall defines a lower valve chamber and an upper ventilation chamber, and a first opening and a second opening are provided to establish a communication between the lower valve chamber and the upper ventilation chamber, a first float valve that is accommodated in a first valve chamber of the lower valve chamber so as to rise and fall and that closes the first opening when a fuel level in a fuel tank nearly reaches a set full fuel level, and a second float valve that is accommodated in a second valve chamber of the lower valve chamber so as to rise and fall and that closes the second opening when the fuel level in the fuel tank rises abnormally.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: May 29, 2018
    Assignees: PIOLAX, INC., YACHIYO INDUSTRY CO., LTD.
    Inventors: Kenta Mihara, Kazunari Nakaya, Masato Shinozaki, Masaru Sawano
  • Publication number: 20170203650
    Abstract: A fuel inlet 10 includes a fuel inlet body 11 that is formed of resin including a reception pipe portion 20, a filler pipe connection pipe portion 30, a breather pipe connection pipe portion 40, and a fluid introduction portion 60. The reception pipe portion 60 receives a fuel nozzle 3. The filler pipe connection pipe portion 30 is located on a lower side of the reception pipe portion 20 and is connected to a filler pipe 31. The breather pipe connection pipe portion 40 is located on an upper side of the reception pipe portion 20 and is connected to a breather pipe 41. The fluid introduction portion 20 causes foamed fluid to flow along an inner wall surface of the reception pipe portion 20 while liquefying the foamed fluid, the foamed fluid flowing from the breather pipe connection pipe portion 40 to the reception pipe portion 20.
    Type: Application
    Filed: February 27, 2015
    Publication date: July 20, 2017
    Inventors: Kazunari NAKAYA, Naoki TABUCHI, Hironori KOYAMA
  • Publication number: 20170072787
    Abstract: A valve device for a fuel tank has a housing having a valve chamber which is provided below a partition wall and a ventilation chamber which is provided above the partition wall; a recess having a first opening formed in the bottom section thereof and defining a part of the ventilation chamber; and a fuel vapor discharge opening formed in the inner periphery of the recess. The partition wall has a shelf-like wall section extending from the peripheral edge of a second opening and reaching the inner periphery of the recess. The shelf-like wall section has formed therein a first groove section extending from the second opening side and connecting to the recess. A ceiling wall is disposed above the shelf-like wall section with a gap therebetween.
    Type: Application
    Filed: December 18, 2014
    Publication date: March 16, 2017
    Applicants: PIOLAX, INC., YACHIYO INDUSTRY CO., LTD.
    Inventors: Kenta MIHARA, Kazunari NAKAYA, Masato SHINOZAKI, Masaru SAWANO
  • Publication number: 20160153410
    Abstract: An evaporated fuel processing device includes a liquid level surface detection valve that detects a full-tank liquid level surface when refueling, and closes a canister communication hole; a fuel shutoff valve to close an evaporation hole when a liquid level surface becomes higher than the full-tank liquid level surface; and an outlet port communicating with a canister. A first communication path and a second communication path are formed in a folded back shape folded back at a first valve seat upper part in plan view. The first communication path enables communication between the first valve seat upper part and a second valve seat upper part, and the second communication path enables communication between the first valve seat upper part and the outlet port. This constitution reduces fuel liquid leakage from the outlet port.
    Type: Application
    Filed: September 26, 2014
    Publication date: June 2, 2016
    Inventors: Toru Matsuzaki, Kazunari Nakaya, Masato Shinozaki, Masaru Sawano
  • Publication number: 20150252760
    Abstract: One embodiment provides a valve device for fuel tank. The valve device includes: a housing in which a valve chamber and a ventilation chamber are divided by a partition wall having a first and second openings; a vapor discharge outlet communicating with the ventilation chamber; first and second float valves vertically movably housed in the valve chamber to close the first and second openings, respectively; and a recess portion defined in a part of the ventilation chamber correspondingly with the first opening. A passage is provided to communicate the discharge outlet with the recess portion. And, a first wall portion is provided around an end of the passage on a side of the recess portion so as to block the fuel that flows out of the second opening into the first opening from heading to the third opening.
    Type: Application
    Filed: March 4, 2015
    Publication date: September 10, 2015
    Inventors: Kenta MIHARA, Kazunari Nakaya, Masato Shinozaki, Masaru Sawano
  • Publication number: 20140209190
    Abstract: A fuel tank valve having: a housing that is arranged in a fuel tank and has a communication port communicating with an outside of the fuel tank; and a float valve body that is installed in the housing and closes the communication port when fuel in the housing increases, where a wall part of the housing has an opening part through which the fuel flows in and out, and a projecting part that is formed to correspond to the opening part and projects outwardly from the wall part, and the projecting part is separated above from the opening part by a predetermined distance, is provided.
    Type: Application
    Filed: March 26, 2014
    Publication date: July 31, 2014
    Applicants: Toyoda Gosei Co., Ltd., Yachiyo Industry Co., Ltd.
    Inventors: Kazunari Nakaya, Toshinori Seki, Kenichiro Kaneko
  • Patent number: 8720472
    Abstract: A fuel cutoff valve comprises a casing main body with a connecting hole and a valve chamber, a cover forming the tube member, and the float housed in the valve chamber. The valve comprises, above the casing main body, the liquid closure member forming the retaining chamber for temporarily retaining liquid fuel flown out of the connecting hole and the partition member formed in plurality in a ridge form on the upper surface of the upper wall within the retaining chamber. Each partition member is arranged radially so as to be connected to the liquid closure member from the near center of the connecting hole, and configured in such a way that the retaining chamber is divided into multiple divided chambers.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: May 13, 2014
    Assignees: Toyoda Gosei Co., Ltd., Yachiyo Industry Co., Ltd.
    Inventors: Hiroaki Kito, Kenichiro Kaneko, Kenta Kuwayama, Toru Matsuzaki, Kazunari Nakaya
  • Publication number: 20130025700
    Abstract: A fuel cutoff valve comprises a casing main body with a connecting hole and a valve chamber, a cover forming the tube member, and the float housed in the valve chamber. The valve comprises, above the casing main body, the liquid closure member forming the retaining chamber for temporarily retaining liquid fuel flown out of the connecting hole and the partition member formed in plurality in a ridge form on the upper surface of the upper wall within the retaining chamber. Each partition member is arranged radially so as to be connected to the liquid closure member from the near center of the connecting hole, and configured in such a way that the retaining chamber is divided into multiple divided chambers.
    Type: Application
    Filed: July 25, 2012
    Publication date: January 31, 2013
    Applicants: Yachiyo Industry Co., Ltd., TOYODA GOSEI CO., LTD.
    Inventors: Hiroaki KITO, Kenichiro KANEKO, Kenta KUWAYAMA, Toru MATSUZAKI, Kazunari NAKAYA
  • Publication number: 20100186828
    Abstract: An air flow control valve includes a housing arranged in a fuel tank and having a canister communication port in an upper portion of the housing; and a float valve body embedded in the housing and closing the communication port by the valve body along with a rise of fuel in the housing, where orifice holes and vents configured to communicate with an inside and outside of the housing are formed and where the vents are configured to be located below the orifice holes and above a fuel level in a full state of the tank, wherein, regarding the orifice holes and the vents, when the communication port is closed by the valve body, only the orifice holes are in an air flow state, and when the communication port is open in the full state, the orifice holes and the vents are in the air flow state.
    Type: Application
    Filed: January 29, 2010
    Publication date: July 29, 2010
    Applicant: YACHIYO INDUSTRY CO., LTD.
    Inventors: Toru MATSUZAKI, Kazunari Nakaya