Patents by Inventor Hiroshi Yoshioka

Hiroshi Yoshioka 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).

  • Patent number: 4153131
    Abstract: A suspension device for front wheels in automotive vehicles having front drive shafts of mutually different shaft length, in which unbalanced rotatory moment to be imparted to the king pin means at the left and right sides of the wheels caused by a difference in the angles of inclination at the left and right drive shafts is compensated by providing a difference in the center offset quantities at both left and right wheels.
    Type: Grant
    Filed: August 5, 1976
    Date of Patent: May 8, 1979
    Assignee: Honda Giken Kogyo Kabushiki Daisha
    Inventors: Mamoru Sakata, Hiroshi Yoshioka, Masahiro Ohashi
  • Patent number: 4131717
    Abstract: A magnetic recording medium including a non-magnetic base and a magnetic layer thereon which contains and/or is coated with an organopolysiloxane having an average unit with the formula: exhibits(CH.sub.3)(RO).sub.n (R'COO).sub.m SiO.sub.(3-n-m)/2wherein R is a monovalent hydrocarbon group having from 1 to 5 carbon atoms, R' is an aliphatic monovalent hydrocarbon group having from 7 to 17 carbon atoms; n is zero or a positive number, m is a positive number with the proviso that n + m is less than 3 and the number of Si atoms in a molecule of such organopolysiloxane ranges from 2 to 8. Magnetic recording medium containing such organopolysiloxane material exhibit a substantially reduced dynamic friction coefficient and a substantially reduced tendency of the magnetic layer to lose magnetic particles, along with an improved splicing-ability.
    Type: Grant
    Filed: May 16, 1977
    Date of Patent: December 26, 1978
    Assignee: Sony Corporation
    Inventors: Takayasu Hirano, Yoshiaki Hisagen, Minoru Takamizawa, Hiroshi Yoshioka
  • Patent number: 4024306
    Abstract: The coating composition is prepared by partial co-hydrolysis and co-condensation of a mixture comprising an organotrialkoxysilane or its combination with a tetraalkoxysilane, a fluoroalkylalkoxysilane and a hydroxy-endblocked diorganopolysiloxane in the presence of an acid catalyst. The organopolysiloxanes thus prepared are suitable for coating plastic surfaces to produce a coating on the surfaces, the cured coating film having hardness as well as flexibility sufficient to ensure a very strong resistance to swelling, dissolution or corrosion by attacks of solvents and chemicals.
    Type: Grant
    Filed: March 19, 1975
    Date of Patent: May 17, 1977
    Assignee: Shin-Etsu Chemical Company Limited
    Inventors: Minoru Takamizawa, Akira Abe, Yoshio Inoue, Hiroshi Yoshioka