Patents by Inventor Yoshiharu Okiyama

Yoshiharu Okiyama 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).

  • Enhanced ceramic material for precision alignment mechanism
    Patent number: 7091146
    Abstract: Ceramics containing 80 wt % or greater of alumina (Al2O3), with Mn, Ti, Fe, Si, Ca and Mg, with Mn—Al spinal (MnO.Al2O3) crystals and anorthite crystals (CaO.Al2O3.2SiO2) generated by calcination, and having a volume resistivity of 1×1011 ?·cm or less. Preferably, the ceramics contains a combined weight of 2–11 wt % or greater of Mn, Ti and Fe as the oxides, 0.5 wt % or greater of Mn as manganese dioxide (MnO2), 0.5 wt % or greater of Ti as titanium oxide (TiO2), and 0.5 wt % or greater of Fe as iron oxide (Fe2O3).
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: August 15, 2006
    Assignee: Sodick Co., Ltd.
    Inventors: Yoshiharu Okiyama, Ryo Yamaguchi
  • Enhanced ceramic material for precision alignment mechanism
    Publication number: 20040266606
    Abstract: Ceramics containing 80 wt % or greater of alumina (Al2O3), with Mn, Ti, Fe, Si, Ca and Mg, with Mn—Al spinel (MnO·Al2O3) crystals and anorthite crystals (CaO·Al2O3·2SiO2) generated by calcination, and having a volume resistivity of 1×1011 &OHgr;·cm or less. The ceramics contains a combined weight of 2-11 wt % or greater of Mn, Ti and Fe as the oxides, 0.5 wt % or greater of Mn as manganese dioxide (MnO2 ), 0.5 wt % or greater of Ti as titanium oxide (TiO2), and 0.
    Type: Application
    Filed: July 21, 2004
    Publication date: December 30, 2004
    Applicant: Sodick Co., Ltd.
    Inventors: Yoshiharu Okiyama, Ryo Yamaguchi