Patents by Inventor Toshiaki Akamatsu

Toshiaki Akamatsu 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).

  • Patent number: 10788137
    Abstract: A pressure regulating valve includes a casing, a holder, a fixed valve, a movable valve, a spring member, a diaphragm, and a filter. The filter is configured to filter fluid flowing from a flow inlet of the casing into a pressure chamber. The filter includes a filtering part for filtering fluid and a holding part including a frame part for holding an outer periphery of the filtering part. An alignment structure configured to align the holding part at a predetermined position is provided between the holding part of the filter and the holder, or between the holding part of the filter and the casing.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: September 29, 2020
    Assignee: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Shinya Higashi, Koji Yoshida, Toshiaki Akamatsu, Yuji Yamashita, Satoshi Nakamura, Kensuke Niwa
  • Publication number: 20190257437
    Abstract: A pressure regulating valve includes a casing, a holder, a fixed valve, a movable valve, a spring member, a diaphragm, and a filter. The filter is configured to filter fluid flowing from a flow inlet of the casing into a pressure chamber. The filter includes a filtering part for filtering fluid and a holding part including a frame part for holding an outer periphery of the filtering part. An alignment structure configured to align the holding part at a predetermined position is provided between the holding part of the filter and the holder, or between the holding part of the filter and the casing.
    Type: Application
    Filed: August 14, 2017
    Publication date: August 22, 2019
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Shinya HIGASHI, Koji YOSHIDA, Toshiaki AKAMATSU, Yuji YAMASHITA, Satoshi NAKAMURA, Kensuke NIWA
  • Patent number: 10184576
    Abstract: A pressure control valve has a housing including a valve seat and defining a fluid path therein, a valve body including a support member and a valve member, and a spring biasing the valve body toward the valve seat in a valve closing direction. The valve member is an integrated molding including a seal member and a reinforcement member that reinforces the seal member. The seal member is made from a rubber-like elastic material and includes a seal portion that is configured to be seated on the valve seat. The reinforcement member is engaged with the support member without using a separate member such as adhesive.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: January 22, 2019
    Assignee: AISAN KOGYO KABUSHIKI KAISHA
    Inventor: Toshiaki Akamatsu
  • Publication number: 20170152958
    Abstract: A pressure control valve has a housing including a valve seat and defining a fluid path therein, a valve body including a support member and a valve member, and a spring biasing the valve body toward the valve seat in a valve closing direction. The valve member is an integrated molding including a seal member and a reinforcement member that reinforces the seal member. The seal member is made from a rubber-like elastic material and includes a seal portion that is configured to be seated on the valve seat. The reinforcement member is engaged with the support member without using a separate member such as adhesive.
    Type: Application
    Filed: November 30, 2016
    Publication date: June 1, 2017
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventor: Toshiaki AKAMATSU
  • Publication number: 20060270498
    Abstract: A power transmission device includes a pulley 1, a hub 2 and a power shut-off member 3 and further includes a cap 4, one face of which is fastened to an end portion of a rotary shaft 5 by screwing and the other face of which is fastened to the power shut-off member by screwing, so as to transmit power from the power shut-off member to the rotary shaft 5. Power is transmitted between the rotary shaft and the cap not only by this screw fastening portion but also by utilizing a seat surface B or both seat surfaces A and B, wherein the seat surface A is formed on a forward end face 5a provided on the rotary shaft and the seat surface B is formed on a screw root portion (an expanded diameter portion) 5d.
    Type: Application
    Filed: May 30, 2006
    Publication date: November 30, 2006
    Applicants: DENSO CORPORATION, KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takekazu Kanou, Michiyasu Nosaka, Yasuo Tabuchi, Masafumi Nakashima, Toshiaki Akamatsu, Tetsuhiko Fukanuma
  • Patent number: 3952418
    Abstract: Master gear for checking tooth contact characterized by the fact that all or part of its contact surface is made of an insulating material and two sets of conductive detectors are regularly arranged on said tooth contact surface one of which extends parallel to and the other perpendicular to the flat sides of the tooth.
    Type: Grant
    Filed: January 30, 1975
    Date of Patent: April 27, 1976
    Assignee: Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventors: Toshiaki Akamatsu, Masahiko Yasugi, Mitsuyuki Bito