Patents by Inventor Junya Yoshitake

Junya Yoshitake 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 the production of molded particles for enzyme- or microbial cell-immobilization
    Patent number: 6855746
    Abstract: This invention provides a process for the production of molded particles for enzyme- or microbial cell-immobilization which is characterized in that: an aqueous liquid composition which comprises: (A) an unsaturated group-containing urethane resin which is obtained by making a compound (a) having one hydroxyl group and one epoxy group in a molecule react with a compound (b) having one carboxyl group and one ethylenically unsaturated group in a molecule, and further making thus obtained unsaturated group-containing diol (c) react with polyisocyanate compound (d); (B) a polymerization initiator; and (C) water-soluble macromolecular polysaccharides which are capable of gelation by contact with metal ion; is gelatinized, in an aqueous medium which contains metal ion, to be particulate gel, which is then subjected to photopolymerization and/or thermopolymerization by which to cause the crosslinking reaction of ethylenically unsaturated group in said particulate gel.
    Type: Grant
    Filed: November 14, 2002
    Date of Patent: February 15, 2005
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Junya Yoshitake, Kenji Miyagawa, Kenji Seko
  • Process for the production of molded particles for microbial cell-immobilization
    Patent number: 6706778
    Abstract: This invention provides a process for the production of molded particles for microbial cell-immobilization which is characterized in that: an aqueous liquid composition which comprises: (a) an ethylenically unsaturated group-containing urethane resin which is obtained by making a tertiary amino group-containing diol react with a polyisocyanate compound, and by further introducing an ethylenically unsaturated group; (b) a polymerization initiator; and (c) water-soluble macromolecular polysaccharides; is gelatinized, in an aqueous medium which contains metal ion, to be particulate gel which is then subjected to photopolymerization and/or thermopolymerization by which to cause the crosslinking reaction of ethylenically unsaturated group in said particulate gel.
    Type: Grant
    Filed: January 31, 2002
    Date of Patent: March 16, 2004
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Junya Yoshitake, Kenji Miyagawa, Kenji Seko
  • Water-based solder resist composition
    Patent number: 6602651
    Abstract: The present invention provides an aqueous solder resist composition comprising: (a) A water-soluble or water-dispersible, photopolymerizable resin containing at least one polymerizable unsaturated group and at least one carboxyl group, the carboxyl group being neutralized with an amine compound, (b) a photoinitiator, (c) an amino resin, and (d) a low reactivity epoxy compound free of an epoxy group represented by the formula  wherein Y is oxygen or nitrogen.
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: August 5, 2003
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Junya Yoshitake, Tetsuo Ogawa, Kenji Seko, Jun Akui, Satoru Furusawa, Yutaka Yoshikawa
  • Process for the production of molded particles for enzyme- or microbial cell-immobilization
    Publication number: 20030100636
    Abstract: This invention provides a process for the production of molded particles for enzyme- or microbial cell-immobilization which is characterized in that:
    Type: Application
    Filed: November 14, 2002
    Publication date: May 29, 2003
    Inventors: Junya Yoshitake, Kenji Miyagawa, Kenji Seko
  • Process for the production of molded particles for microbial cell-immobilization
    Publication number: 20020143104
    Abstract: This invention provides a process for the production of molded particles for microbial cell-immobilization which is characterized in that:
    Type: Application
    Filed: January 31, 2002
    Publication date: October 3, 2002
    Inventors: Junya Yoshitake, Kenji Miyagawa, Kenji Seko