Patents by Inventor Masahiko Sakakibara

Masahiko Sakakibara 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).

  • Sputtering target and method for producing same
    Patent number: 5435826
    Abstract: A sputtering target having a relative density of 90% or more and a single-phase structure for forming a indium-tin oxide layer of low resistance is produced by pressing a composite powder of indium oxide and tin oxide having an average diameter of 0.1 .mu.m or less and a tin content controlled to 1.5-6 weight %; and sintering the pressed composite powder at 1500.degree.-1700.degree. C. in an oxygen atmosphere pressurized at 1-10 atm.
    Type: Grant
    Filed: November 23, 1993
    Date of Patent: July 25, 1995
    Assignee: Hitachi Metals, Ltd.
    Inventors: Masahiko Sakakibara, Hiromi kikuchi
  • Ceramic substrate for a thin layer magnetic head
    Patent number: 4681813
    Abstract: A thin layer magnetic head comprising a ceramic substrate consisting essentially of 100 parts by weight of a ceramic material and 0.05 to 5 parts by weight of at least one compound from the group consisting of silicon oxide and iron oxide.
    Type: Grant
    Filed: September 20, 1984
    Date of Patent: July 21, 1987
    Assignee: Hitachi Metals, Ltd.
    Inventors: Hirohide Yamada, Masahiko Sakakibara, Yoshiharu Koike