Patents by Inventor Hiroaki Sasayama

Hiroaki Sasayama 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).

  • Deposition method of Ni—P—B system electroplating film, the film, and slide member comprising the film
    Patent number: 11193215
    Abstract: In a deposition method of Ni—P—B system plating film, electroplating is performed in a plating bath containing Ni ions, phosphorous acid ions, alkylamine borane, acetic acid, at least one sort of a primary brightening agent, and a secondary brightening agent including at least one sort of a surface active agent. In the above-mentioned plating bath, concentration of alkylamine borane in said plating bath is 1.37 mmol/L or more, and concentration of acetic acid in said plating bath is 0.70 mol/L or more and less than 2.80 mol/L. Thereby, plating film having high hardness of Hv 700 or more can be deposited with high manufacturing efficiency without baking processing, while reducing occurrence of poor appearance, such as burning and abnormal precipitation, even when current density is increased to 80 A/dm2 or more to raise deposition rate.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: December 7, 2021
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventor: Hiroaki Sasayama
  • DEPOSITION METHOD OF NI-P-B SYSTEM ELECTROPLATING FILM, THE FILM, AND SLIDE MEMBER COMPRISING THE FILM
    Publication number: 20210054517
    Abstract: In a deposition method of Ni—P—B system plating film, electroplating is performed in a plating bath containing Ni ions, phosphorous acid ions, alkylamine borane, acetic acid, at least one sort of a primary brightening agent, and a secondary brightening agent including at least one sort of a surface active agent. In the above-mentioned plating bath, concentration of alkylamine borane in said plating bath is 1.37 mmol/L or more, and concentration of acetic acid in said plating bath is 0.70 mol/L or more and less than 2.80 mol/L. Thereby, plating film having high hardness of Hv 700 or more can be deposited with high manufacturing efficiency without baking processing, while reducing occurrence of poor appearance, such as burning and abnormal precipitation, even when current density is increased to 80 A/dm2 or more to raise deposition rate.
    Type: Application
    Filed: March 14, 2018
    Publication date: February 25, 2021
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventor: Hiroaki SASAYAMA
  • Mechanical component for internal combustion engine, manufacturing method of mechanical component for internal combustion engine, and mechanical component
    Patent number: 10094025
    Abstract: A mechanical component for an internal combustion engine includes a mechanical component body made of one of aluminum and aluminum alloy and used for the internal combustion engine, a nickel plating layer formed to cover a surface of a predetermined portion of the mechanical component body, and a reforming layer formed between the surface of the predetermined portion of the mechanical component body and the nickel plating layer.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: October 9, 2018
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Hajime Minaki, Hiroaki Sasayama, Akihiro Okamoto, Takuya Niimi
  • MECHANICAL COMPONENT FOR INTERNAL COMBUSTION ENGINE, MANUFACTURING METHOD OF MECHANICAL COMPONENT FOR INTERNAL COMBUSTION ENGINE, AND MECHANICAL COMPONENT
    Publication number: 20170268109
    Abstract: A mechanical component for an internal combustion engine includes a mechanical component body made of one of aluminum and aluminum alloy and used for the internal combustion engine, a nickel plating layer formed to cover a surface of a predetermined portion of the mechanical component body, and a reforming layer formed between the surface of the predetermined portion of the mechanical component body and the nickel plating layer.
    Type: Application
    Filed: June 5, 2017
    Publication date: September 21, 2017
    Applicant: Aisin Seiki Kabushiki Kaisha
    Inventors: Hajime MINAKI, Hiroaki SASAYAMA, Akihiro OKAMOTO, Takuya NIIMI
  • PRESS-FIT TERMINAL
    Publication number: 20170085016
    Abstract: A press-fit terminal includes: a base material; and a plated surface layer which is obtained by plating a surface of the base material with an Sn—Ni alloy.
    Type: Application
    Filed: September 6, 2016
    Publication date: March 23, 2017
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Hiroaki SASAYAMA, Yosuke TAKATA
  • MECHANICAL COMPONENT FOR INTERNAL COMBUSTION ENGINE, MANUFACTURING METHOD OF MECHANICAL COMPONENT FOR INTERNAL COMBUSTION ENGINE, AND MECHANICAL COMPONENT
    Publication number: 20140345559
    Abstract: A mechanical component for an internal combustion engine includes a mechanical component body made of one of aluminum and aluminum alloy and used for the internal combustion engine, a nickel plating layer formed to cover a surface of a predetermined portion of the mechanical component body, and a reforming layer formed between the surface of the predetermined portion of the mechanical component body and the nickel plating layer.
    Type: Application
    Filed: May 27, 2014
    Publication date: November 27, 2014
    Applicant: Aisin Seiki Kabushiki Kaisha
    Inventors: Hajime MINAKI, Hiroaki Sasayama, Akihiro Okamoto, Takuya Niimi