Patents by Inventor Fumihiko KUWABARA

Fumihiko KUWABARA 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).

  • Electronic control device
    Patent number: 10681810
    Abstract: A circuit board (3) of an electronic control device has a connector fixing screw penetration hole (16) which a connector fixing screw penetrates, a resist layer (13) and a joining portion (23) which is formed at a circumference of connector fixing screw penetration hole (16) and to which the connector fixing screw can be soldered. Joining portion (23) is formed at an inner side of a resist layer opening (22) which is open at the circumference of connector fixing screw penetration hole (16). Joining portion (23) is formed so that an area of joining portion (23) located at an inner side of circuit board (3) with respect to a center (C1) of connector fixing screw penetration hole (16) is larger than an area of joining portion (23) located at an outer side of circuit board (3) with respect to the center (C1) of connector fixing screw penetration hole (16).
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: June 9, 2020
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Mototaka Takahashi, Fumihiko Kuwabara, Hirofumi Watanabe
  • ELECTRONIC CONTROL DEVICE
    Publication number: 20190208634
    Abstract: A circuit board (3) of an electronic control device has a connector fixing screw penetration hole (16) which a connector fixing screw penetrates, a resist layer (13) and a joining portion (23) which is formed at a circumference of connector fixing screw penetration hole (16) and to which the connector fixing screw can be soldered. Joining portion (23) is formed at an inner side of a resist layer opening (22) which is open at the circumference of connector fixing screw penetration hole (16). Joining portion (23) is formed so that an area of joining portion (23) located at an inner side of circuit board (3) with respect to a center (C1) of connector fixing screw penetration hole (16) is larger than an area of joining portion (23) located at an outer side of circuit board (3) with respect to the center (C1) of connector fixing screw penetration hole (16).
    Type: Application
    Filed: August 23, 2017
    Publication date: July 4, 2019
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Mototaka TAKAHASHI, Fumihiko KUWABARA, Hirofumi WATANABE