Patents by Inventor Daigo Usa

Daigo Usa 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).

  • Intake system of internal combustion engine with supercharger
    Patent number: 10385810
    Abstract: An intake system of an internal combustion engine with a supercharger includes: a negative pressure control valve which is disposed in the upstream side than an intake side supercharger in an intake passage; a first external gas introduction passage which introduces a single external gas made of blow-by gas, at a part of the intake passage which is on the upstream side of the intake side supercharger and on the downstream side of the negative pressure control valve; and a fresh air introduction passage which introduces fresh air to an internal combustion engine main body from the upstream side of the negative pressure control valve.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: August 20, 2019
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Kazuya Matsushima, Yoichi Oyamada, Daigo USA, Yoshiyuki Kawai, Kohei Hotta
  • Oil separator
    Patent number: 10151226
    Abstract: An oil separator includes: a collecting member that collects an oil mist included in blow-by gas of an internal combustion engine; and an oil separator portion inside which the collecting member is disposed, in which the collecting member includes a plurality of wire net members stacked along a flow direction of the blow-by gas.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: December 11, 2018
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Daigo Usa, Kohei Hotta, Yoshiyuki Suzuki, Kazuya Matsushima, Akihiro Yamashita, Yoshiyuki Kawai
  • OIL SEPARATOR
    Publication number: 20170175601
    Abstract: An oil separator includes: a collecting member that collects an oil mist included in blow-by gas of an internal combustion engine; and an oil separator portion inside which the collecting member is disposed, in which the collecting member includes a plurality of wire net members stacked along a flow direction of the blow-by gas.
    Type: Application
    Filed: December 20, 2016
    Publication date: June 22, 2017
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Daigo USA, Kohei HOTTA, Yoshiyuki SUZUKI, Kazuya MATSUSHIMA, Akihiro YAMASHITA, Yoshiyuki KAWAI
  • INTAKE SYSTEM OF INTERNAL COMBUSTION ENGINE WITH SUPERCHARGER
    Publication number: 20170107955
    Abstract: An intake system of an internal combustion engine with a supercharger includes: a negative pressure control valve which is disposed in the upstream side than an intake side supercharger in an intake passage; a first external gas introduction passage which introduces a single external gas made of blow-by gas, at a part of the intake passage which is on the upstream side of the intake side supercharger and on the downstream side of the negative pressure control valve; and a fresh air introduction passage which introduces fresh air to an internal combustion engine main body from the upstream side of the negative pressure control valve.
    Type: Application
    Filed: October 20, 2016
    Publication date: April 20, 2017
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Kazuya MATSUSHIMA, Yoichi OYAMADA, Daigo USA, Yoshiyuki KAWAI, Kohei HOTTA
  • Auto-tensioner
    Patent number: 5547429
    Abstract: The characteristics of the auto-tensioner of the present invention resides in a second reservoir chamber 24 which resides within a plunger 11 extending toward inside of a spring 15.Accordingly, without changing the whole length of a cylinder 10, sufficient amount of operating oil can be reserved and the smooth flow of operating oil into a pressure chamber 23 from the second reservoir 24 chamber can be conducted.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: August 20, 1996
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Katsumi Hirabayashi, Daigo Usa