Patents by Inventor Koichiro Hayashi

Koichiro Hayashi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Transparent resin composite
    Patent number: 3955035
    Abstract: Transparent resin composites comprising a substrate of a transparent plastic material coated with a cured film of at least one [(2,3-epoxypropoxy)alkyl]trialkoxysilane or of at least one [(2,3-epoxypropoxy)alkyl]trialkoxysilane and at least one transparent polymer compatible with said silane are provided. The resin composites have excellent abrasion resistance, surface hardness, heat resistance, chemical resistance, weathering resistance, etc. well retaining the transparency and other optical characteristics of the substrate resin. These resin composites can be used as transparent plastic panels, lenses, etc.
    Type: Grant
    Filed: August 6, 1974
    Date of Patent: May 4, 1976
    Assignees: Japan Atomic Energy Research Institute, Tokyo Optical Company, Ltd.
    Inventors: Akihiko Ito, Isao Kaetsu, Hiroshi Okubo, Masamichi Kato, Koichiro Hayashi
  • Process for preparing thermally stabilized oxymethylene polymer from trioxane with thiocyanate and radiation
    Patent number: 3930972
    Abstract: Trioxane can advantageously be polymerized in the presence of a thiocyanate (an ester of thiocyanic acid), to obtain an oxymethylene polymer having thermal stability. The polymerization is further promoted by means of an ionizing radiation or an ultraviolet light.
    Type: Grant
    Filed: September 10, 1973
    Date of Patent: January 6, 1976
    Assignee: Japan Atomic Energy Research Institute
    Inventors: Akihiko Ito, Masaru Yoshida, Yoshiaki Nakase, Tadafumi Yamauchi, Tadashi Iwai, Koichiro Hayashi