TREA

Tadashi Komoto

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  • Fukuoka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for hydrogenation of coal tar pitch
    • Patent number 4,909,923
    • Issue date Mar 20, 1990
    • Nippon Steel Chemical Co., Ltd.
    • Hiroshi Okazaki
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Heat-sensitive recording materials
    • Patent number 4,672,401
    • Issue date Jun 9, 1987
    • Nippon Steel Chemical Co., Ltd.
    • Yasuharu Yamada
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS