TREA

Masashi Nakazawa

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Optical information recording medium
    • Patent number 5,368,908
    • Issue date Nov 29, 1994
    • Ricoh Company, Ltd.
    • Wasaburo Ohta
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Optical information recording medium having multi-layered structure...
    • Patent number 5,251,202
    • Issue date Oct 5, 1993
    • Ricoh Company, Ltd.
    • Yujiro Kaneko
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Thin film forming apparatus
    • Patent number 5,133,849
    • Issue date Jul 28, 1992
    • Ricoh Company, Ltd.
    • Mikio Kinoshita
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Thin film deposition system
    • Patent number 5,114,559
    • Issue date May 19, 1992
    • Ricoh Company, Ltd.
    • Wasaburo Ohta
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Thin film forming apparatus
    • Patent number 5,058,527
    • Issue date Oct 22, 1991
    • Ricoh Company, Ltd.
    • Wasaburo Ohta
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Apparatus for forming thin film
    • Patent number 4,982,696
    • Issue date Jan 8, 1991
    • Ricoh Company, Ltd.
    • Mikio Kinoshita
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Apparatus for forming a thin film
    • Patent number 4,966,095
    • Issue date Oct 30, 1990
    • Ricoh Company, Ltd.
    • Wasaburo Ohta
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...