Patents by Inventor Shigeto KOYAMA

Shigeto KOYAMA 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).

  • Operation device
    Patent number: 11953929
    Abstract: When an operation knob 10 formed of silicone rubber is pushed laterally, a stem 7 tilts with a contact portion (i) as a fulcrum, a push button portion 6b is pushed, and a contact point in a switch mechanism portion 6a operates to turn on a switch circuit. Even if, by a large operating force F3 being applied, the operation knob 10 is extended and the inner surface portion 15, which is a ceiling surface of an internal space 13 of the operation knob 10, rides on an upper end portion 7c, a reinforcing surface 19 provided on the inner surface portion 15 slides on the upper end portion 7c, and the operation knob 10 returns to the initial shape.
    Type: Grant
    Filed: April 11, 2022
    Date of Patent: April 9, 2024
    Assignees: ALPS ALPINE CO., LTD., OLYMPUS CORPORATION
    Inventors: Shigeto Gorai, Tetsu Numata, Akihiro Kusaka, Shunsuke Kimura, Reiji Koyama
  • FLAME RETARDANT TREATMENT OF POLYESTER BASED SYNTHETIC FIBER STRUCTURE
    Publication number: 20200115527
    Abstract: The invention provides a flame retardant for a polyester based synthetic fiber structure comprising aminopentaphenoxycyclotriphosphazene, and a flame retardant treatment agent for a polyester based synthetic fiber structure comprising the flame retardant dispersed in a solvent in the presence of a surfactant.
    Type: Application
    Filed: June 16, 2018
    Publication date: April 16, 2020
    Applicants: DAIKYO CHEMICAL CO., LTD., FUSHIMI PHARMACEUTICAL CO., LTD.
    Inventors: Terufumu IWAKI, Shigeto KOYAMA, Yuji TADA