Patents by Inventor Nobuo Kawauchi

Nobuo Kawauchi 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).

  • Casting mold for die casting, and method for setting decompression path conductance thereof
    Patent number: 11738388
    Abstract: A decompression path conductance factor calculation device 110 obtains a cavity pressure change characteristic representing a pressure change characteristic of a cavity portion 30 from an exhaust speed of a decompression device 70, a cavity conductance factor, an overflow conductance factor, a decompression path conductance factor, and respective volumes of inside spaces of a cavity portion 30, an overflow portion 50, and a decompression path 60, obtains a decompression path pressure change characteristic representing a pressure change characteristic of the decompression path 60 from the exhaust speed of the decompression device 70, the volume of the inside space of the decompression path 60, and the decompression path conductance factor, and obtains the decompression path conductance factor such that a difference between respective approximate curves representing the obtained cavity pressure change characteristic and the obtained decompression path pressure change characteristic becomes a threshold value or
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: August 29, 2023
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Nobuo Kawauchi, Satoru Kimura, Ryo Onishi, Gaku Kazama, Toshihide Sunada
  • Cap member for shut-off valve, valve element for shut-off valve, method for manufacturing shut-off valve, and method for replacing valve element of shut-off valve
    Patent number: 11549592
    Abstract: A cap member is used in a shut-off valve including a valve head in which a through hole is formed, the cap member including: a cap member main body screwed into the through hole; a first engaging portion for engaging with a first tool for screwing the cap member main body into the valve head; a second engaging portion formed inside the cap member main body to engage with a second tool for unscrewing the cap member main body from the valve head; and a wall portion covering the second engaging portion so that the second engaging portion is not exposed when the cap member is viewed from the first engaging portion toward the second engaging portion.
    Type: Grant
    Filed: February 28, 2022
    Date of Patent: January 10, 2023
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Kenji Yuki, Masahiro Yamada, Satoru Kimura, Nobuo Kawauchi, Yu Shindo
  • CAP MEMBER FOR SHUT-OFF VALVE, VALVE ELEMENT FOR SHUT-OFF VALVE, METHOD FOR MANUFACTURING SHUT-OFF VALVE, AND METHOD FOR REPLACING VALVE ELEMENT OF SHUT-OFF VALVE
    Publication number: 20220307607
    Abstract: A cap member is used in a shut-off valve including a valve head in which a through hole is formed, the cap member including: a cap member main body screwed into the through hole; a first engaging portion for engaging with a first tool for screwing the cap member main body into the valve head; a second engaging portion formed inside the cap member main body to engage with a second tool for unscrewing the cap member main body from the valve head; and a wall portion covering the second engaging portion so that the second engaging portion is not exposed when the cap member is viewed from the first engaging portion toward the second engaging portion.
    Type: Application
    Filed: February 28, 2022
    Publication date: September 29, 2022
    Inventors: Kenji Yuki, Masahiro Yamada, Satoru Kimura, Nobuo Kawauchi, Yu Shindo
  • CASTING MOLD FOR DIE CASTING, AND METHOD FOR SETTING DECOMPRESSION PATH CONDUCTANCE THEREOF
    Publication number: 20210379651
    Abstract: A decompression path conductance factor calculation device 110 obtains a cavity pressure change characteristic representing a pressure change characteristic of a cavity portion 30 from an exhaust speed of a decompression device 70, a cavity conductance factor, an overflow conductance factor, a decompression path conductance factor, and respective volumes of inside spaces of a cavity portion 30, an overflow portion 50, and a decompression path 60, obtains a decompression path pressure change characteristic representing a pressure change characteristic of the decompression path 60 from the exhaust speed of the decompression device 70, the volume of the inside space of the decompression path 60, and the decompression path conductance factor, and obtains the decompression path conductance factor such that a difference between respective approximate curves representing the obtained cavity pressure change characteristic and the obtained decompression path pressure change characteristic becomes a threshold value or
    Type: Application
    Filed: September 21, 2018
    Publication date: December 9, 2021
    Inventors: Nobuo Kawauchi, Satoru Kimura, Ryo Onishi, Gaku Kazama, Toshihide Sunada