Hisashi Sakai

Person

  • Numazu, JP

Patents Grantslast 30 patents

  • Information Patent Grant

    Thermosensitive recording material

    • Patent number 5,137,864
    • Issue date Aug 11, 1992
    • Ricoh Company, Ltd.
    • Hiroshi Yaguchi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Thermosensitive recording material

    • Patent number 5,102,693
    • Issue date Apr 7, 1992
    • Ricoh Company, Ltd.
    • Takanori Motosugi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Thermosensitive recording material

    • Patent number 4,975,408
    • Issue date Dec 4, 1990
    • Ricoh Company, Ltd.
    • Takanori Motosugi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Thermosensitive recording material

    • Patent number 4,916,111
    • Issue date Apr 10, 1990
    • Ricoh Company, Ltd.
    • Hiroshi Yaguchi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Thermosensitive recording material

    • Patent number 4,895,828
    • Issue date Jan 23, 1990
    • Ricoh Company, Ltd.
    • Hiroshi Yaguchi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Thermosensitive recording material

    • Patent number 4,571,605
    • Issue date Feb 18, 1986
    • Ricoh Company, Ltd.
    • Takanori Motosugi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Thermosensitive recording material

    • Patent number 4,507,670
    • Issue date Mar 26, 1985
    • Ricoh Company, Ltd.
    • Takanori Motosugi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Cap with supply stopper for use with containers

    • Patent number 4,164,307
    • Issue date Aug 14, 1979
    • Ricoh Company Limited
    • Masanaga Imamura
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL