Patents by Inventor Takayoshi Kanamaru

Takayoshi Kanamaru 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).

  • Cross roller bearing
    Patent number: 4479683
    Abstract: The present invention discloses a spacer retainer in a cross roller bearing.
    Type: Grant
    Filed: March 7, 1983
    Date of Patent: October 30, 1984
    Assignee: Toho Seiko Co., Ltd.
    Inventor: Takayoshi Kanamaru
  • Annealing steel strip using molten B.sub.2 O.sub.3, SiO.sub.2 Na.sub.2 O, NaF glass bath
    Patent number: 4473412
    Abstract: A process for annealing steel strip comprising dipping the strip in a molten glass bath maintained 950.degree. C. or higher to anneal it, taking the strip out of the bath to form coagulated glass coatings on the surfaces of the strip and cooling the strip to destroy and peel off the coatings. The bath comprises 38.0 to 62.0% of B.sub.2 O.sub.3, 18.0 to 32.0% of SiO.sub.2, 18.0 to 32.0% of Na.sub.2 O partly replaceable with K.sub.2 O, up to 10.0% of CaO partly replaceable with MgO, BaO, ZnO and/or SrO, up to 6.0% of Li.sub.2 O, up to 10.0% of Al.sub.2 O.sub.3 and 0.5 to 4.0% of NaF, and has a viscosity not exceeding 200 poises as measured at 950.degree. C. The strip is preferably not exposed to air while above 400.degree. C.
    Type: Grant
    Filed: February 4, 1983
    Date of Patent: September 25, 1984
    Assignee: Nisshin Steel Co., Ltd.
    Inventors: Shigeaki Maruhashi, Takayoshi Kanamaru, Hiroto Matsumoto, Kousuke Sawashige