TREA

Tsumoru Oka

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  • Tohda, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sealing structure for electrical parts
    • Patent number 5,144,277
    • Issue date Sep 1, 1992
    • Alps Electric Co., Ltd.
    • Kanji Ishihara
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Cable reel
    • Patent number 4,921,428
    • Issue date May 1, 1990
    • Alps Electric Co., Ltd.
    • Kunihiko Sasaki
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Rotary switch
    • Patent number 4,897,513
    • Issue date Jan 30, 1990
    • Alps Electric Co., Ltd.
    • Tsumoru Oka
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Electrical connection apparatus
    • Patent number 4,824,396
    • Issue date Apr 25, 1989
    • Alps Electric Co., Ltd.
    • Kunihiko Sasaki
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Automatic signal cancelling apparatus for a direction indicator on...
    • Patent number 4,658,236
    • Issue date Apr 14, 1987
    • Alps Electric Co., Ltd.
    • Tsumoru Oka
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Potentiometer
    • Patent number 4,652,850
    • Issue date Mar 24, 1987
    • Alps Electric Co., Ltd.
    • Tsumoru Oka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Rotary switch assembly
    • Patent number 4,218,594
    • Issue date Aug 19, 1980
    • Alps Electric Co., Ltd.
    • Hiroki Komatsu
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Switch
    • Patent number 4,200,773
    • Issue date Apr 29, 1980
    • Alps Electric Co., Ltd.
    • Hiroaki Komatsu
    • H01 - BASIC ELECTRIC ELEMENTS