Patents by Inventor Keiichiro Naito

Keiichiro Naito 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).

  • Chuck and tube joint
    Patent number: 7318609
    Abstract: A chuck includes an annular ring portion, a first engaging portion which extends along a central axis of the annular ring portion and which engages with the first tube joint member, and a second engaging portion which extends from the annular ring portion along the central axis of the annular ring portion and which elastically engages with a second tube joint member. A-three-dimensionally shaped portion, which is an end of the second engaging portion, includes a pair of expanded portions on a metal plate. The annular ring portion is formed by rounding the metal plate with both ends, which are not fixed to one another so that both ends are displaceable circumferentially.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: January 15, 2008
    Assignee: SMC Kabushiki Kaisha
    Inventors: Keiichiro Naito, Yoshimoto Taneya, Taku Tomita, Hitoshi Hamasaki
  • Tube joint
    Patent number: 6908120
    Abstract: A tube joint includes a body into which a tube is inserted, a guide member which is arranged in the body, a chuck which engages with the outer circumferential surface of the tube to retain the tube, fastening pawls which protrude while being inclined by predetermined angles toward the inner circumference facing the tube on the chuck, a release bush which releases the tube from a fastened state, and a packing which is installed in the body. The packing surrounds the outer circumferential surface of the tube, and is displaceable in the axial direction of the body when a pressure fluid is supplied.
    Type: Grant
    Filed: May 5, 2004
    Date of Patent: June 21, 2005
    Assignee: SMC Kabushiki Kaisha
    Inventors: Taku Tomita, Yoshimoto Taneya, Motohiro Sato, Keiichiro Naito, Hitoshi Hamasaki
  • Chuck and tube joint
    Publication number: 20050006896
    Abstract: A chuck includes an annular ring portion, a first engaging portion which extends along a central axis of the annular ring portion and which engages with the first tube joint member, and a second engaging portion which extends from the annular ring portion along the central axis of the annular ring portion and which elastically engages with a second tube joint member. A-three-dimensionally shaped portion, which is an end of the second engaging portion, includes a pair of expanded portions on a metal plate. The annular ring portion is formed by rounding the metal plate with both ends, which are not fixed to one another so that both ends are displaceable circumferentially.
    Type: Application
    Filed: July 2, 2004
    Publication date: January 13, 2005
    Applicant: SMC Kabushiki Kaisha
    Inventors: Keiichiro Naito, Yoshimoto Taneya, Taku Tomita, Hitoshi Hamasaki
  • Tube joint
    Publication number: 20040232697
    Abstract: A tube joint includes a body into which a tube is inserted, a guide member which is arranged in the body, a chuck which engages with the outer circumferential surface of the tube to retain the tube, fastening pawls which protrude while being inclined by predetermined angles toward the inner circumference facing the tube on the chuck, a release bush which releases the tube from a fastened state, and a packing which is installed in the body. The packing surrounds the outer circumferential surface of the tube, and is displaceable in the axial direction of the body when a pressure fluid is supplied.
    Type: Application
    Filed: May 5, 2004
    Publication date: November 25, 2004
    Applicant: SMC Kabushiki Kaisha
    Inventors: Taku Tomita, Yoshimoto Taneya, Motohiro Sato, Keiichiro Naito, Hitoshi Hamasaki