Patents by Inventor Hiroshi Kiyonaga

Hiroshi Kiyonaga 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: 11466163
    Abstract: In a coated article including a laminated coating film configured such that a first base layer 3 containing a lustrous material 11 and a second base layer 4 and a transparent clear layer 5 containing an organic pigment 15 are stacked on each other in this order on a coating target object, the same type of organic ultraviolet absorbing agent 13 having a molecular weight of equal to or greater than 500 is added to the first base layer 3 and the second base layer 4.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: October 11, 2022
    Assignees: NIPPON PAINT AUTOMOTIVE COATINGS CO., LTD., MAZDA MOTOR CORPORATION
    Inventors: Eiji Yamanaka, Masaharu Arashi, Hiroshi Kiyonaga, Hideaki Tsujioka, Takakazu Yamane, Kouji Teramoto
  • Publication number: 20200354589
    Abstract: In a coated article including a laminated coating film configured such that a first base layer 3 containing a lustrous material 11 and a second base layer 4 and a transparent clear layer 5 containing an organic pigment 15 are stacked on each other in this order on a coating target object, the same type of organic ultraviolet absorbing agent 13 having a molecular weight of equal to or greater than 500 is added to the first base layer 3 and the second base layer 4.
    Type: Application
    Filed: January 30, 2018
    Publication date: November 12, 2020
    Applicants: NIPPON PAINT AUTOMOTIVE COATINGS CO., LTD., MAZDA MOTOR CORPORATION
    Inventors: Eiji YAMANAKA, Masaharu ARASHI, Hiroshi KIYONAGA, Hideaki TSUJIOKA, Takakazu YAMANE, Kouji TERAMOTO
  • Patent number: 7652052
    Abstract: To provide a novel process for producing ramosetron or its salt that is useful as a pharmaceutical, especially as a therapeutic and/or preventive agent for digestive symptoms caused by administration of an anti-malignant tumor agent, diarrheal-type irritable bowel syndrome, diarrheal symptoms of irritable bowel syndrome, etc. Ramosetron or its salt can be produced by reacting a compound of the formula (I): [wherein X is a halogen] or a salt thereof with 1-methyl-1H-indole in the presence of a Lewis acid selected from the group consisting of a lower alkylaluminum dihalide, a di-lower alkylaluminum halide, a tri-lower alkylaluminum and a lower alkylaluminum sesquihalide.
    Type: Grant
    Filed: April 10, 2006
    Date of Patent: January 26, 2010
    Assignee: Astellas Pharma Inc.
    Inventors: Masatoshi Inakoshi, Kiyotaka Marumo, Noriya Yamamoto, Hiroshi Kiyonaga, Yasuaki Ohishi
  • Publication number: 20090069570
    Abstract: [Problems] To provide a novel process for producing ramosetron or its salt that is useful as a pharmaceutical, especially as a therapeutic and/or preventive agent for digestive symptoms caused by administration of an anti-malignant tumor agent, diarrheal-type irritable bowel syndrome, diarrheal symptoms of irritable bowel syndrome, etc. [Means for Resolution] Ramosetron or its salt can be produced by reacting a compound of the formula (I): [wherein X is a halogen] or a salt thereof with 1-methyl-1H-indole in the presence of a Lewis acid selected from the group consisting of a lower alkylaluminum dihalide, a di-lower alkylaluminum halide, a tri-lower alkylaluminum and a lower alkylaluminum sesquihalide.
    Type: Application
    Filed: April 10, 2006
    Publication date: March 12, 2009
    Inventors: Masatoshi Inakoshi, Kiyotaka Marumo, Noriya Yamamoto, Hiroshi Kiyonaga, Yasuaki Ohishi