TREA

Hidehito Kawahara

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Circular fluorescent lamp
    • Patent number 5,723,939
    • Issue date Mar 3, 1998
    • Matsushita Electronics Corporation
    • Ikuhiro Okuno
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Discharge excitation gas laser device
    • Patent number 5,271,026
    • Issue date Dec 14, 1993
    • Matsushita Electric Industrial Co. Ltd.
    • Naoki Kosugi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Laser device
    • Patent number 5,050,174
    • Issue date Sep 17, 1991
    • Matsushita Electric Industrial Co., Ltd.
    • Koichi Wani
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Laser apparatus
    • Patent number 4,991,178
    • Issue date Feb 5, 1991
    • Matsushita Electric Industrial Co., Ltd.
    • Koichi Wani
    • H01 - BASIC ELECTRIC ELEMENTS