Patents by Inventor Yasunori Fukuda

Yasunori Fukuda 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).

  • Thermoplastic elastomer composition and gasket material
    Patent number: 6399696
    Abstract: There are disclosed a thermoplastic elastomer composition which comprises (a) a hydrogenated block copolymer obtained by hydrogenating the block copolymer comprising at least one polymer block composed principally of a vinylic aromatic compound and at least one polymer block composed principally of a conjugated diene compound; (b) a non-aromatic base softening agent having a kinematic viscosity at 40° C.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: June 4, 2002
    Assignee: Bridgestone Corporation
    Inventors: Shinichi Toyosawa, Youichi Nishimuro, Kunio Machida, Takashi Shimizu, Naruhiko Mashita, Yasunori Fukuda, Jun Arai, Yasushi Imai, Tadashi Utsunomiya
  • Preparation of .alpha.-keto acid ester
    Patent number: 5523459
    Abstract: A process for preparing an .alpha.-keto acid ester (oxo acid) of the formula: ##STR1## wherein R.sup.1 is a hydrogen atom, aliphatic alkyl group of 1-6 carbon atoms, phenyl group or benzyl group, and R.sup.2 is an aliphatic alkyl group of 1-6 carbon atoms, which comprises causing an .alpha.-hydroxycarboxylic acid ester of the formula: ##STR2## to react with molecular oxygen in a gaseous phase in the presence of copper phosphate, possibly, mounted on a solid carrier.
    Type: Grant
    Filed: March 27, 1995
    Date of Patent: June 4, 1996
    Assignee: Ube Industries, Ltd.
    Inventors: Koichi Hirai, Yasuo Nakamura, Kiyotaka Yoshii, Yasunori Fukuda
  • Method of producing a glycolic acid ester
    Patent number: 5455372
    Abstract: A glycolic acid ester is produced by hydrogenating an oxalic acid diester of the formula, (COOR).sub.2, wherein R is a C.sub.1-6 alkyl group, with hydrogen in the presence of a solid catalyst comprising, for example, copper and silver metals carried on a solid carrier, and in the additional presence of an aliphatic alcohol, and collecting the resultant glycolic acid ester from the reaction mixture by distillation, preferably in the presence of an ester of a C.sub.3-12 dicarboxylic acid.
    Type: Grant
    Filed: March 10, 1994
    Date of Patent: October 3, 1995
    Assignee: Ube Industries, Ltd.
    Inventors: Koichi Hirai, Yasuo Nakamura, Yasunori Fukuda