TREA

Tatsumi Arakawa

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Polyethylacetylene derivative and process for preparation thereof
    • Patent number 5,091,488
    • Issue date Feb 25, 1992
    • Director General of Agency of Industrial Science and Technology
    • Masaru Ozaki
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Highly electroconductive films and process for preparing same
    • Patent number 4,701,317
    • Issue date Oct 20, 1987
    • Director General of Agency of Industrial Science and Technology
    • Tatsumi Arakawa
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
  • Information Patent Grant

    Fluorinated graphites and a process for production thereof
    • Patent number 4,639,297
    • Issue date Jan 27, 1987
    • Asahi Kasei Kogyo Kabushiki Kaisha
    • Kazumi Suematsu
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
  • Information Patent Grant

    Process for preparation of polyvinylene sulfide
    • Patent number 4,564,668
    • Issue date Jan 14, 1986
    • Director-General of Agency of Industrial Science and Technology
    • Tatsumi Arakawa
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polyvinylene sulfide and polyvinylene selenide
    • Patent number 4,537,950
    • Issue date Aug 27, 1985
    • Director General of Agency of Industrial Science and Technology
    • Shu Kambara
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Photoelectrolyzer
    • Patent number 4,381,233
    • Issue date Apr 26, 1983
    • Asahi Kasei Kogyo Kabushiki Kaisha
    • Toshio Adachi
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
  • Information Patent Grant

    Semiconductor device
    • Patent number 4,358,782
    • Issue date Nov 9, 1982
    • Asahi Kasei Kogyo Kabushiki Kaisha
    • Kaoru Takasuka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Heat developable silver image forming materials
    • Patent number 4,347,310
    • Issue date Aug 31, 1982
    • Asahi Kasei Kogyo Kabushiki Kaisha
    • Tetsuo Shiga
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Aluminum-halogen cells
    • Patent number 4,269,911
    • Issue date May 26, 1981
    • Asahi Kasei Kogyo Kabushiki Kaisha
    • Masayuki Fukuoka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Dry image forming materials
    • Patent number 4,234,679
    • Issue date Nov 18, 1980
    • Asahi Kasei Kogyo Kabushiki Kaisha
    • Kageyasu Akashi
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Thin metal-halogen cells
    • Patent number 4,226,924
    • Issue date Oct 7, 1980
    • Asahi Kasei Kogyo Kabushiki Kaisha
    • Muneaki Kimura
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Dry image forming material containing diarylhalomethane
    • Patent number 4,188,226
    • Issue date Feb 12, 1980
    • Asahi Kasei Kogyo Kabushiki Kaisha
    • Kageyasu Akashi
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Dry image forming material containing an organic silver salt oxidiz...
    • Patent number 4,173,482
    • Issue date Nov 6, 1979
    • Asahi Kasei Kogyo Kabushiki Kaisha
    • Kageyasu Akashi
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Microfilm typewriter
    • Patent number 4,139,288
    • Issue date Feb 13, 1979
    • Asahi Kasei Kogyo Kabushiki Kaisha
    • Takashi Ogata
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Printed circuit board made by dispersion imaging
    • Patent number 4,121,007
    • Issue date Oct 17, 1978
    • Asahi Kasei Kogyo Kabushiki Kaisha
    • Hidehiko Kobayashi
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Dry image forming material
    • Patent number 4,113,496
    • Issue date Sep 12, 1978
    • Asahi Kasei Kogyo Kabushiki Kaisha
    • Tetsuo Shiga
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY