Patents by Inventor Katsuji Negoro

Katsuji Negoro 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).

  • Fluid delivery tube structural body
    Patent number: 7066409
    Abstract: A fluid discharge pipe structure comprises a cylindrical body, an inlet side connection member having a through hole formed in one end part of the cylindrical body, an outlet side connection member having a through hole formed in another end part of the cylindrical body, a spiral blade body having spiral blades on an outer circumference thereof and provided close to the inlet side connection member of the cylindrical body, and a flip-flop phenomenon generating shaft body provided close to the outlet side connection member of the cylindrical body.
    Type: Grant
    Filed: July 4, 2003
    Date of Patent: June 27, 2006
    Assignee: BIC Kogyo K.K.
    Inventor: Katsuji Negoro
  • Fluid delivery tube structural body
    Publication number: 20050051642
    Abstract: A fluid discharge pipe structure comprises a cylindrical body 2, an inlet side connection member 4 having a through hole 3 formed in one end part of the cylindrical body 2, an outlet side connection member 6 having a through hole 5 formed in the other end part of the cylindrical body 2, a spiral blade body 7 having spiral blades 24a, 24b and 24c on an outer circumference thereof and built in close to the inlet side connection member 4 of the cylindrical body 2, and a flip-flop phenomenon generating shaft body 8 built in close to the outlet side connection member 6 of the cylindrical body 2.
    Type: Application
    Filed: July 4, 2003
    Publication date: March 10, 2005
    Inventor: Katsuji Negoro