Patents by Inventor Tsutomu OHIGASHI

Tsutomu OHIGASHI 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).

  • Publication number: 20210008475
    Abstract: Provided is a cylindrical filter for a gas generator including a metal wire in a wound state, the metal wire including a plurality of recess portions provided on a first surface side and formed at intervals in a length direction thereof, the metal wire being wound with a surface including the recess portions facing an inner circumferential surface side of the cylindrical filter for a gas generator, and the recess portions of the metal wire being present on an inner side of the metal wire which extends from an inner circumferential surface toward an outer circumferential surface of the cylindrical filter.
    Type: Application
    Filed: April 3, 2019
    Publication date: January 14, 2021
    Applicants: DAICEL CORPORATION, FUJI FILTER MANUFACTURING CO., LTD.
    Inventors: Masato HIROOKA, Mikio YABUTA, Tsutomu OHIGASHI, Takashi MATSUMOTO, Kiyohisa KIKUCHI