TREA

Sakae Naito

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  • Chiba, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Process for regenerating clogged filters
    • Patent number 5,240,613
    • Issue date Aug 31, 1993
    • Maruzen Petrochemical Co., Ltd.
    • Masatoshi Tsuchitani
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Process for preparing pitches
    • Patent number 5,182,011
    • Issue date Jan 26, 1993
    • Maruzen Petrochemical Co., Ltd.
    • Masatoshi Tsuchitani
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Process for preparing pitches
    • Patent number 5,091,072
    • Issue date Feb 25, 1992
    • Maruzen Petrochemical Co., Ltd.
    • Masatoshi Tsuchitani
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Process for producing pitch for the manufacture of high-performance...
    • Patent number 4,925,547
    • Issue date May 15, 1990
    • Maruzen Petrochemical Co., Ltd.
    • Masatoshi Tsuchitani
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
  • Information Patent Grant

    Method of purifying coal tars for use in the production of carbon p...
    • Patent number 4,874,502
    • Issue date Oct 17, 1989
    • Maruzen Petrochemical Co., Ltd.
    • Masatoshi Tsuchitani
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Process for the preparation of mesophase pitches
    • Patent number 4,820,401
    • Issue date Apr 11, 1989
    • Iizuka; Kozo
    • Masatoshi Tsuchitani
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
  • Information Patent Grant

    Process for preparing mesophase pitches
    • Patent number 4,789,456
    • Issue date Dec 6, 1988
    • Agency of Industrial Science and Technology
    • Masatoshi Tsuchitani
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...