TREA

Makoto Tsuchiya

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Patents Grantslast 30 patents

  • Information Patent Grant

    Process for producing cyanopsia-correctable intraocular lens
    • Patent number 5,374,663
    • Issue date Dec 20, 1994
    • Hoya Corporation
    • Masanori Daicho
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Contact lens
    • Patent number 5,302,678
    • Issue date Apr 12, 1994
    • Hoya Corporation
    • Masashi Nomura
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Contact lens
    • Patent number 5,194,542
    • Issue date Mar 16, 1993
    • Hoya Corporation
    • Hidetoshi Iwamoto
    • G02 - OPTICS
  • Information Patent Grant

    High water content soft contact lens
    • Patent number 5,073,616
    • Issue date Dec 17, 1991
    • Hoya Corporation
    • Hideyuki Futamura
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Oxygen-permeable hard contact lens material with excellent impact r...
    • Patent number 5,023,305
    • Issue date Jun 11, 1991
    • Hoya Corporation
    • Shigeharu Onozuka
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Soft contact lens
    • Patent number 4,650,843
    • Issue date Mar 17, 1987
    • Hoya Lens Corporation
    • Yuuichi Yokoyama
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Oxygen-permeable hard contact lens
    • Patent number 4,540,761
    • Issue date Sep 10, 1985
    • Hoya Lens Corporation
    • Kazunori Kawamura
    • G02 - OPTICS
  • Information Patent Grant

    Terpolymer with a high refractive index
    • Patent number 4,373,076
    • Issue date Feb 8, 1983
    • Hoya Lens Corporation
    • Niro Tarumi
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Method for marking an indication to the lens
    • Patent number 4,329,378
    • Issue date May 11, 1982
    • Kabushiki Kaisha Hoya Lens (Hoya Lens Corporation)
    • Niro Tarumi
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Highly refractive copolymer of an ethylinically unsaturated alkylen...
    • Patent number 4,306,780
    • Issue date Dec 22, 1981
    • Hoya Lens Corporation
    • Niro Tarumi
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    PRESS-FORMING METHOD
    • Publication number 20230302519
    • Publication date Sep 28, 2023
    • Honda Motor Co., Ltd.
    • Sen TAO
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...