Patents by Inventor Kazuki Shibata

Kazuki Shibata 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).

  • Acrylic emulsions containing tackifiers, processes for preparing them, and adhesive tape containing acrylic emulsions containing tackifiers
    Patent number: 6288148
    Abstract: Acrylic emulsions are obtained by carrying out a polymerization reaction of a first acrylic monomer dispersion, adding a second acrylic monomer dispersion, and carrying out a further polymerization reaction wherein the first acrylic monomer dispersion contains acrylic monomer and tackifier in a first proportion to acrylic monomer contained in the first acrylic monomer dispersion and wherein the second acrylic monomer dispersion contains acrylic monomer and tackifier in a second proportion to acrylic monomer contained in the second acrylic monomer dispersion, and wherein the proportion of tackifier in the first acrylic monomer dispersion is lower than the proportion of tackifier in the second acrylic monomer dispersion. A high molecular weight acrylic polymer is obtained when the first acrylic monomer dispersion is polymerization reacted. The second acrylic monomer dispersion is added to the first acrylic monomer dispersion after the first acrylic monomer dispersion is polymerization reacted.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: September 11, 2001
    Assignee: Sony Chemicals Corp.
    Inventors: Hiroshi Samukawa, Kazuki Shibata
  • ELECTRONIC DOCUMENT GENERATING APPARATUS, ELECTRONIC DOCUMENT GENERATING METHOD, AND PROGRAM THEREOF
    Publication number: 20010016068
    Abstract: A document image that is captured from image inputting unit and stored in image storing portion is displayed on displaying unit. Regions of the document displayed on displaying unit are designated using position inputting unit. Thereafter, attributive information is designated to the individual regions using character inputting unit.
    Type: Application
    Filed: November 24, 1997
    Publication date: August 23, 2001
    Inventor: KAZUKI SHIBATA
  • Cationically polymerizable epoxy resins and optical information recording medium made therefrom
    Patent number: 6121339
    Abstract: An epoxy resin composition according to the present invention is one initiating cationic polymerization upon irradiation with energy rays. The epoxy resin composition is formed of at least bisphenol epoxy resin (A) as an active ingredient, epoxy resin (B) shown in the following formula and cationic polymerization catalyst (C).
    Type: Grant
    Filed: February 12, 1998
    Date of Patent: September 19, 2000
    Assignee: Sony Chemicals Corporation
    Inventors: Hiraku Kominami, Kozaburo Hayashi, Kazuki Shibata