TREA

Takayuki Ohsawa

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  • Funabashi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Optical scanning apparatus
    • Patent number 5,570,224
    • Issue date Oct 29, 1996
    • Ricoh Company, Ltd.
    • Osamu Endo
    • G02 - OPTICS
  • Information Patent Grant

    Optical scanner for image recording apparatus
    • Patent number 5,161,047
    • Issue date Nov 3, 1992
    • Ricoh Company, Ltd.
    • Kan Tomita
    • G02 - OPTICS
  • Information Patent Grant

    Optical scanner
    • Patent number 5,157,534
    • Issue date Oct 20, 1992
    • Ricoh Company, Ltd.
    • Osamu Endou
    • G06 - COMPUTING CALCULATING COUNTING