Patents by Inventor Masao Tajima

Masao Tajima 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).

  • Sanitary rubber article
    Patent number: 5082875
    Abstract: A sanitary rubber composition or article comprising a synthetic rubber prepared by solution polymerization and a fine powder of polyethylene having a molecular weight of 1.times.10.sup.6 to 1.times.10.sup.9 and having excellent chemical and physical properties is described.
    Type: Grant
    Filed: April 17, 1989
    Date of Patent: January 21, 1992
    Assignee: Kabushiki Kaisha Toritsu Industry
    Inventor: Masao Tajima
  • Cloth presser mechanism with rack and pinion needle rod-drive
    Patent number: 4915044
    Abstract: A cloth presser mechanism comprises a cloth presser vertically movably supported by an arm of a sewing machine. A needle bar is vertically movably supported by the arm of the sewing machine and has a needle at the lower end thereof. The mechanism further includes a rack fixed to the needle bar, a pinion rotatably supported by the arm of the sewing machine and engaged with the rack, a cam integral with the pinion, a first link having an end pivotally supported by the arm of the sewing machine and a middle portion connected to a roller which rides on the surface of the cam, and a second link having an end pivotally supported by the cloth presser. The other end of the second link is pivotally connected to the other end of the first link.
    Type: Grant
    Filed: April 17, 1989
    Date of Patent: April 10, 1990
    Assignee: SSMC Inc.
    Inventors: Tetsuo Kambara, Hideyuki Kobayashi, Masao Tajima
  • Sanitary rubber composition or article
    Patent number: 4839429
    Abstract: A sanitary rubber composition or article comprising a synthetic rubber prepared by solution polymerization and a fine powder of polyethylene having a molecular weight of 1.times.10.sup.6 to 1.times.10.sup.9 and having excellent chemical and physical properties is described.
    Type: Grant
    Filed: March 28, 1988
    Date of Patent: June 13, 1989
    Assignee: Kabushiki Kaisha Toritsu Industry
    Inventor: Masao Tajima
  • Sanitary rubber composition or article
    Patent number: 4833206
    Abstract: A sanitary rubber composition or article comprising a synthetic rubber prepared by solution polymerization and a fine powder of polyethylene having a molecular weight of 1.times.10.sup.6 to 1.times.10.sup.9 and having excellent chemical and physical properties is described.
    Type: Grant
    Filed: March 29, 1988
    Date of Patent: May 23, 1989
    Assignee: Kabushiki Kaisha Toritsu Industry
    Inventor: Masao Tajima