Patents by Inventor Tetsuhiko KAWASAKI

Tetsuhiko KAWASAKI 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).

  • Press-fit terminal connection structure having types of alloy layer
    Patent number: 10594062
    Abstract: It is aimed to provide a press-fit terminal connection structure in which a board connecting portion of a press-fit terminal is press-fit into a through hole provided in a printed circuit board and which can combine the suppression of scraping of a surface layer and a reduction of a necessary load when the press-fit terminal is inserted into and withdrawn from the through hole and an improvement of a holding force for keeping the press-fit terminal inserted in the through hole. In the press-fit terminal connection structure, the press-fit terminal includes, at least on a surface of the contact point portion, an alloy containing layer mainly containing tin and palladium, and the through hole includes a tin layer on an outermost surface of an inner peripheral surface including at least the contact point portion.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: March 17, 2020
    Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Yoshimasa Shirai, Yasushi Saitoh, Kingo Furukawa, Tetsuhiko Kawasaki, Masayuki Ookubo, Hajime Watanabe, Yoshiyasu Tsuchiya, Akihiro Kato
  • PRESS-FIT TERMINAL CONNECTION STRUCTURE
    Publication number: 20190140376
    Abstract: It is aimed to provide a press-fit terminal connection structure in which a board connecting portion of a press-fit terminal is press-fit into a through hole provided in a printed circuit board and which can combine the suppression of scraping of a surface layer and a reduction of a necessary load when the press-fit terminal is inserted into and withdrawn from the through hole and an improvement of a holding force for keeping the press-fit terminal inserted in the through hole. In the press-fit terminal connection structure, the press-fit terminal includes, at least on a surface of the contact point portion, an alloy containing layer mainly containing tin and palladium, and the through hole includes a tin layer on an outermost surface of an inner peripheral surface including at least the contact point portion.
    Type: Application
    Filed: May 11, 2017
    Publication date: May 9, 2019
    Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Yoshimasa SHIRAI, Yasushi SAITOH, Kingo FURUKAWA, Tetsuhiko KAWASAKI, Masayuki OOKUBO, Hajime WATANABE, Yoshiyasu TSUCHIYA, Akihiro KATO