Patents by Inventor Isamu Takabayashi

Isamu Takabayashi 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).

  • Patent number: 6803389
    Abstract: This invention discloses a process for producing a polyester resin, which is transparent, substantially free of occurrence of foreign matters or filtration residue, and is subject to no problem in physical properties, within short time, by concurrently reacting polyester whose chief starting material is terephthalic acid and which has been recovered from waste materials and regenerated; a polyhydric alcohol component and a polybasic acid component, at such ratios that the regenerated polyester occupies 10-80% by weight based on the total weight of the regenerated polyester, polyhydric alcohol component and polybasic acid component.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: October 12, 2004
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Chicara Kawamura, Isamu Takabayashi
  • Patent number: 6770694
    Abstract: The present invention provides a powder coating composition for forming a multilayer film, obtainable by dry blending a lower layer-forming thermosetting powder coating material (A) and an upper layer-forming thermosetting powder coating material (B), wherein at least one of the following conditions is satisfied: (I) the material (A) contains an onium salt compound; (II) particles of 45 &mgr;m or smaller diameter account for at least 90 wt. % of each of the materials (A) and (B); and (III) the material (A) is higher than the material (B) in melt viscosity (Pa·s) measured at 130° C. The powder coating composition of the invention is capable of sufficiently separating into layers and forming a multilayer film with excellent properties.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: August 3, 2004
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Kazuhiko Ohnishi, Isamu Takabayashi, Masami Kobata
  • Publication number: 20030045613
    Abstract: The present invention provides a powder coating composition for forming a multilayer film, obtainable by dry blending a lower layer-forming thermosetting powder coating material (A) and an upper layer-forming thermosetting powder coating material (B), wherein at least one of the following conditions is satisfied: (I) the material (A) contains an onium salt compound; (II) particles of 45 &mgr;m or smaller diameter account for at least 90 wt. % of each of the materials (A) and (B); and (III) the material (A) is higher than the material (B) in melt viscosity (Pa·s) measured at 130° C.
    Type: Application
    Filed: April 22, 2002
    Publication date: March 6, 2003
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Kazuhiko Ohnishi, Isamu Takabayashi, Masami Kobata
  • Publication number: 20020061933
    Abstract: This invention discloses a process for producing a polyester resin, which is transparent, substantially free of occurrence of foreign matters or filtration residue, and is subject to no problem in physical properties, within short time, by concurrently reacting polyester whose chief starting material is terephthalic acid and which has been recovered from waste materials and regenerated; a polyhydric alcohol component and a polybasic acid component, at such ratios that the regenerated polyester occupies 10-80% by weight based on the total weight of the regenerated polyester, polyhydric alcohol component and polybasic acid component.
    Type: Application
    Filed: August 13, 2001
    Publication date: May 23, 2002
    Inventors: Chicara Kawamura, Isamu Takabayashi