Patents by Inventor Kunihiko Sakano

Kunihiko Sakano 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).

  • Process for preparation of tetrahydropyranyoxyamines
    Publication number: 20040030160
    Abstract: Tetrahydropyranyloxyamines are extremely useful as intermediates in the production of pharmaceuticals and agricultural chemicals, and as raw materials, additives or precursors in the production of perfumes, resins and adhesives. The present invention provides a process for producing a tetrahydropyranyloxyamine from an aminoalcohol which is both simple and produces a high yield. According to the present invention, an aminoalcohol represented by a general formula (1) shown below is reacted with an acid, the obtained aminoalcohol salt is reacted with 3,4-dihydro-2H-pyran, and the obtained tetrahydropyranyloxyamine salt is subsequently reacted with an alkali to form a tetrahydropyranyloxyamine represented by the general formula (2) shown below.
    Type: Application
    Filed: June 20, 2002
    Publication date: February 12, 2004
    Inventors: Kunihiko Sakano, Kimio Tamura, Toshitaka Uragaki, Kuniyoshi Ogura
  • Process for preparation of tetrahydropyranyloxyamines
    Publication number: 20030069324
    Abstract: The present invention discloses ultraviolet light curable paint compositions to be used in a multilayer paint coating and method for applying such a compositions to a substrate. Suitable substrates include glass, metals, and various plastics such as polycarbonates. The disclosed compositions do not contain any significant amount of volatile organic solvents that do not become incorporated in the coating or released to ambient after curing.
    Type: Application
    Filed: June 20, 2002
    Publication date: April 10, 2003
    Inventors: Kunihiko Sakano, Kimio Tamura, Toshitaka Uragaki, Kuniyoshi Ogura
  • Process for preparation of dicarboxylic acid monoesters
    Patent number: 6355830
    Abstract: A process for producing a dicarboxylic acid monoester which comprises subjecting a dicarboxylic acid monoester or an alkali metal salt of a dicarboxylic acid monoester and a metal alkoxide to transesterification in the presence of an organic solvent, or a process for producing a dicarboxylic acid monoester which comprises subjecting a dicarboxylic acid monoester or an alkali metal salt of a dicarboxylic acid monoester and an alcohol to transesterification in the presence of a metal alkoxide.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: March 12, 2002
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Kunihiko Sakano, Junji Fujii, Tetsuya Ikemoto
  • Process for preparing &bgr;-hydroxy-&ggr;-butyrolactones and &bgr;-(meth)acryloyloxy-&ggr;-butrolactones
    Patent number: 6313321
    Abstract: The present invention provides a process for preparing &bgr;-hydroxy-&ggr;-butyrolactone or &bgr;-methyl-&bgr;-hydroxy-&ggr;-butyrolactone represented by the formula (1): wherein R1 is hydrogen or methyl, which entails a) cyanating glycidol or 2-methyl-2,3-epoxypropanol, b) hydrolyzing the product of step a), and c) lactonizing the product of step b).
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: November 6, 2001
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Naoshi Murata, Kunihiko Sakano, Tetsuya Ikemoto