TREA

Riken Piston Ring Kogyo Kabushiki Kaisha

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Organization

  • Chiyoda-ku, Tokyo, JP
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Fluidized bed incinerator
    • Patent number 4,244,305
    • Issue date Jan 13, 1981
    • Riken Piston Ring Kogyo Kabushiki Kaisha
    • Akio Kawano
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    Abrasion resisting material and use of the same
    • Patent number 4,098,515
    • Issue date Jul 4, 1978
    • Riken Piston Ring Kogyo Kabushiki Kaisha
    • Tatsuei Sakata
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Sulphur and nitrogen treated iron based rotor for rotary piston engine
    • Patent number 4,074,956
    • Issue date Feb 21, 1978
    • Riken Piston Ring Kogyo Kabushiki Kaisha
    • Masayuki Maruyama
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Oil seal assembly
    • Patent number 4,028,022
    • Issue date Jun 7, 1977
    • Nissan Motor Co., Ltd.
    • Hiroshi Takeuchi
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Oil seal ring for internal combustion engine
    • Patent number 3,947,046
    • Issue date Mar 30, 1976
    • Riken Piston Ring Kogyo Kabushiki Kaisha
    • Masayuki Maruyama
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

  • Information Trademark

    73153840 - RIKEN
    • Serial number 73153840
    • Registration number 1159059
    • Filing date Dec 30, 1977
    • Riken Piston Ring Kogyo Kabushiki Kaisha
    • 12 - Vehicles
  • Information Trademark

    73153842 - RIK
    • Serial number 73153842
    • Registration number 1159060
    • Filing date Dec 30, 1977
    • Riken Piston Ring Kogyo Kabushiki Kaisha
    • 12 - Vehicles
  • Information Trademark

    73153841
    • Serial number 73153841
    • Registration number 1104640
    • Filing date Dec 30, 1977
    • Riken Piston Ring Kogyo Kabushiki Kaisha
    • 6 - Common metals and their alloys