TREA

Kenji Hirai

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  • Sakai-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Fluorescent lamp having phosphor layer
    • Patent number 6,977,462
    • Issue date Dec 20, 2005
    • Matsushita Electric Industrial Co., Ltd.
    • Kenji Yamamoto
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Method for manufacturing a discharge tube
    • Patent number 6,568,216
    • Issue date May 27, 2003
    • Matsushita Electric Industrial Co., Ltd.
    • Takeshi Meguro
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    Fluorescent lamp
    • Patent number 6,515,412
    • Issue date Feb 4, 2003
    • Matsushita Electric Industrial Co., Ltd.
    • Shinichiro Ishitsuka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Method for manufacturing a discharge tube
    • Patent number 6,487,878
    • Issue date Dec 3, 2002
    • Matsushita Electric Industrial Co., Ltd.
    • Takeshi Meguro
    • C03 - GLASS MINERAL OR SLAG WOOL

Patents Applicationslast 30 patents