TREA

Keiichi Maruta

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  • Numaza, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Thermal recording label
    • Patent number 5,457,080
    • Issue date Oct 10, 1995
    • Ricoh Company, Ltd.
    • Shinji Takano
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Thermosensitive recording material
    • Patent number 4,939,116
    • Issue date Jul 3, 1990
    • Ricoh Company, Ltd.
    • Takashi Ueda
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Thermosensitive recording material
    • Patent number 4,929,590
    • Issue date May 29, 1990
    • Ricoh Company, Ltd.
    • Keiichi Maruta
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Thermosensitive recording material
    • Patent number 4,857,502
    • Issue date Aug 15, 1989
    • Ricoh Company, Ltd.
    • Takashi Ueda
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Thermosensitive recording material
    • Patent number 4,551,738
    • Issue date Nov 5, 1985
    • Ricoh Company, Ltd.
    • Keiichi Maruta
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Thermosensitive recording material
    • Patent number 4,444,819
    • Issue date Apr 24, 1984
    • Ricoh Company, Ltd.
    • Keiichi Maruta
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Thermosensitive-recording-type label sheet
    • Patent number 4,424,245
    • Issue date Jan 3, 1984
    • Ricoh Company, Ltd.
    • Keiichi Maruta
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Released heat-sensitive recording paper
    • Patent number 4,388,362
    • Issue date Jun 14, 1983
    • Ricoh Co., Ltd.
    • Susumu Iwata
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Thermosensitive recording adhesive label
    • Patent number 4,370,370
    • Issue date Jan 25, 1983
    • Ricoh Company, Ltd.
    • Susumu Iwata
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS