Patents by Inventor Shuzo Iwata

Shuzo Iwata 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).

  • Silencer for automobile and manufacturing method thereof
    Patent number: 10525905
    Abstract: The present invention discloses a silencer for automobile. The silencer is formed by press molding. The silencer has a first molded surface and a second molded surface which are opposite to each other in a thickness direction. The silencer at least includes a first fiber layer on which the first molded surface is formed and a second fiber layer integrated with an opposite surface to the first molded surface, the opposite surface being on the first fiber layer. Fibers of the second fiber layer exist partly on the opposite surface on the first fiber layer.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: January 7, 2020
    Assignee: HAYASHI TELEMPU CORPORATION
    Inventors: Shuzo Iwata, Arata Tajima, Takahiko Taniguchi, Junpei Shimomura, Kazuya Kusama
  • SILENCER FOR AUTOMOBILE AND MANUFACTURING METHOD THEREOF
    Publication number: 20170369005
    Abstract: The present invention discloses a silencer for automobile. The silencer is formed by press molding. The silencer has a first molded surface and a second molded surface which are opposite to each other in a thickness direction. The silencer at least includes a first fiber layer on which the first molded surface is formed and a second fiber layer integrated with an opposite surface to the first molded surface, the opposite surface being on the first fiber layer. Fibers of the second fiber layer exist partly on the opposite surface on the first fiber layer.
    Type: Application
    Filed: August 23, 2017
    Publication date: December 28, 2017
    Inventors: Shuzo IWATA, Arata TAJIMA, Takahiko TANIGUCHI, Junpei SHIMOMURA, Kazuya KUSAMA
  • Stabilization of pyrido[3,2-a]phenoxazine compounds
    Patent number: 4092410
    Abstract: Stabilized solutions of 1-hydroxy-5-oxo-5H-pyrido-[3,2-a]-phenoxazine-3-carboxylic acid (I) and of 1,5-dihydroxypyrido-[3,2-a]phenoxazine-3-carboxylic acid (II) are provided. The solutions contain a stabilizer selected from the group consisting of ascorbic acid, isoascorbic acid and water-soluble salts thereof. The solutions optionally contain an auxiliary stabilizer selected from the group consisting of sodium sulfite, sodium metasulfite and N-acetyl-L-cysteine and may also contain a solubilizer.
    Type: Grant
    Filed: December 2, 1976
    Date of Patent: May 30, 1978
    Assignee: Senju Pharmaceutical Co., Ltd.
    Inventors: Kazumi Ogata, Shuzo Iwata