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Ohken Seiko Co., Ltd.

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Patents Grantslast 30 patents

  • Information Patent Grant

    Reciprocating pump having a ball drive
    • Patent number 6,264,438
    • Issue date Jul 24, 2001
    • Ohken Seiko Co., Ltd.
    • Tadashi Fukami
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Pump
    • Patent number 6,158,971
    • Issue date Dec 12, 2000
    • Ohken Seiko Co., Ltd.
    • Yoshinori Takagi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Centrifugal pump for supplying hot liquid from a container
    • Patent number 5,314,302
    • Issue date May 24, 1994
    • Ohken Seiko Co., Ltd.
    • Goro Kakizawa
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Small-sized pump
    • Patent number 4,801,249
    • Issue date Jan 31, 1989
    • Ohken Seiko Co., Ltd.
    • Goro Kakizawa
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE