Patents by Inventor Masatochi Fujisawa

Masatochi Fujisawa 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).

  • Particulate matter-containing exhaust emission controlling filter, exhaust emission controlling method and device
    Patent number: 7655064
    Abstract: A particulate matter-removing filter being resistant to clogging and ash blocking, requiring no special means such as back-washing and heating combustion, and being formed of inexpensive materials; and exhaust emission controlling method and device using this. (1) A particulate-matter-containing exhaust emission controlling filter which uses as a basic unit a pair of porous corrugated sheet and a porous flat sheet that support an exhaust emission controlling catalyst, has a molding formed by laminating the porous corrugated sheets so that their ridge lines alternately cross perpendicularly, has one of side surfaces, perpendicularly crossing the corrugated sheet ridge lines, of the molding or mutually-adjoining two surfaces that are the perpendicularly-crossing side surfaces sealed, and has exhaust gas in-flow passage and out-flow passage respectively formed between porous corrugated sheets via a porous flat sheet.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: February 2, 2010
    Assignee: Babcock-Hitachi Kabushiki Kaisha
    Inventors: Yasuyoshi Kato, Takashi Michimoto, Eiji Miyamoto, Naomi Imada, Masatochi Fujisawa, Kazuki Kobayashi, Hiroshi Ishizaka, Takeshi Hirota
  • Particulate matter-containing exhaust emission controlling filter, exhaust emission controlling method and device
    Publication number: 20070128089
    Abstract: A particulate matter-removing filter being resistant to clogging and ash blocking, requiring no special means such as back-washing and heating combustion, and being formed of inexpensive materials; and exhaust emission controlling method and device using this. (1) A particulate-matter-containing exhaust emission controlling filter which uses as a basic unit a pair of porous corrugated sheet and a porous flat sheet that support an exhaust emission controlling catalyst, has a molding formed by laminating the porous corrugated sheets so that their ridge lines alternately cross perpendicularly, has one of side surfaces, perpendicularly crossing the corrugated sheet ridge lines, of the molding or mutually-adjoining two surfaces that are the perpendicularly-crossing side surfaces sealed, and has exhaust gas in-flow passage and out-flow passage respectively formed between porous corrugated sheets via a porous flat sheet.
    Type: Application
    Filed: November 24, 2004
    Publication date: June 7, 2007
    Inventors: Yasuyoshi Kato, Takashi Michimoto, Eiji Miyamoto, Naomi Imada, Masatochi Fujisawa, Kazuki Kobayashi, Hiroshi Ishizaka, Takeshi Hirota