Patents by Inventor Tomonori NAKATSUKA

Tomonori NAKATSUKA 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).

  • Fuel supply system for an internal combustion engine
    Patent number: 10273892
    Abstract: A fuel supply system for use with an internal combustion engine has a check valve and a purge valve disposed in a purge passage that extends from a canister to connect with an intake passage of the internal combustion engine. A controller regulates the purge valve open with a first opening degree or a first duty ratio during a purge operation. The controller may also regulate the purge valve to open with a second opening degree larger than the first opening degree or a second duty ratio larger than the first duty ratio a predetermined time after initiating the purge operation.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: April 30, 2019
    Assignees: AISAN KOGYO KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ryuji Miyazaki, Hidetoshi Tsutsumi, Tomonori Nakatsuka, Kinji Morihiro, Koji Honda
  • Fuel supply system for an internal combustion engine
    Patent number: 9702321
    Abstract: A fuel supply system adapted to supply fuel to an internal combustion engine has both a check valve and a purge valve disposed in a purge passage that extends from a canister to connect with an intake passage of the internal combustion engine. A controller estimates a pressure within an intermediate purge passage of the purge passage located between the check valve and the purge valve without relying on the use of a separate pressure detection device to provide information regarding the same.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: July 11, 2017
    Assignees: AISAN KOGYO KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ryuji Miyazaki, Hidetoshi Tsutsumi, Tomonori Nakatsuka, Kinji Morihiro, Koji Honda
  • FUEL SUPPLY SYSTEM FOR AN INTERNAL COMBUSTION ENGINE
    Publication number: 20160010570
    Abstract: A fuel supply system for use with an internal combustion engine has a check valve and a purge valve disposed in a purge passage that extends from a canister to connect with an intake passage of the internal combustion engine. A controller regulates the purge valve open with a first opening degree or a first duty ratio during a purge operation. The controller may also regulate the purge valve to open with a second opening degree larger than the first opening degree or a second duty ratio larger than the first duty ratio a predetermined time after initiating the purge operation.
    Type: Application
    Filed: July 9, 2015
    Publication date: January 14, 2016
    Inventors: Ryuji MIYAZAKI, Hidetoshi TSUTSUMI, Tomonori NAKATSUKA, Kinji MORIHIRO, Koji HONDA
  • FUEL SUPPLY SYSTEM FOR AN INTERNAL COMBUSTION ENGINE
    Publication number: 20160010571
    Abstract: A fuel supply system adapted to supply fuel to an internal combustion engine has both a check valve and a purge valve disposed in a purge passage that extends from a canister to connect with an intake passage of the internal combustion engine. A controller estimates a pressure within an intermediate purge passage of the purge passage located between the check valve and the purge valve without relying on the use of a separate pressure detection device to provide information regarding the same.
    Type: Application
    Filed: July 9, 2015
    Publication date: January 14, 2016
    Inventors: Ryuji MIYAZAKI, Hidetoshi TSUTSUMI, Tomonori NAKATSUKA, Kinji MORIHIRO, Koji HONDA