TREA

Koichi Hirama

Follow

Person

  • Hiratsuka-shi, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Phase analysis circuit
    • Patent number 10,782,329
    • Issue date Sep 22, 2020
    • MARCDEVICES CO., LTD.
    • Koichi Hirama
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Immittance conversion circuit and filter
    • Patent number 9,401,695
    • Issue date Jul 26, 2016
    • MARCDEVICES CO., LTD.
    • Koichi Hirama
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Gas pressure sensor
    • Patent number 4,703,657
    • Issue date Nov 3, 1987
    • Toyo Communication Equipment Co. Ltd
    • Koichi Hirama
    • G01 - MEASURING TESTING

Patents Applicationslast 30 patents