Patents by Inventor Kiyohiro Teruuchi

Kiyohiro Teruuchi 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).

  • Titanium carbonitride-based cermet cutting insert
    Patent number: 5518822
    Abstract: A TiCN-based cermet cutting insert superior in toughness with improved wear resistance includes a binding phase and at least two hard dispersion phases. One of the hard dispersion phases includes one of a duplex and triplex structure having a core structure containing at least one of titanium carbonitride and a carbonitride solid solution of Ti and one of a V, Cr, Ti, Nb, Zr, W and Mo (hereinafter referred to as a (Ti,M)CN. The other hard dispersion phase includes a single structure wherein the core structure is composed of at least one of (Ti,M)CN or (Ti,M)CN and TiCN.
    Type: Grant
    Filed: October 12, 1994
    Date of Patent: May 21, 1996
    Assignee: Mitsubishi Materials Corporation
    Inventors: Kiyohiro Teruuchi, Katsuhiko Yano, Niro Odani
  • Wear resistant titanium carbonitride-based cermet cutting insert
    Patent number: 5460893
    Abstract: A TiCN-based cermet cutting insert superior in toughness with improved wear resistance includes a binding phase and at least two of four hard dispersion phases. One of the two hard dispersion phases includes at least one of a duplex or triplex phase structure with a core of a composite carbonitride solid solution and a single-phase structure of a composite carbonitride solid solution. The other hard dispersion phase includes one of a hard dispersion phase of titanium carbonitride and a hard dispersion phase which includes a single-phase structure of titanium carbonitride.
    Type: Grant
    Filed: March 8, 1994
    Date of Patent: October 24, 1995
    Assignee: Mitsubishi Materials Corporation
    Inventors: Kiyohiro Teruuchi, Katsuhiko Yano, Niro Odani
  • Wear resistant titanium carbonitride-based cermet cutting insert
    Patent number: 5370719
    Abstract: A TiCN-based cermet cutting insert superior in toughness with improved wear resistance includes a binding phase and at least two hard dispersion phases. One hard dispersion phases includes a core of TiCN while the other hard dispersion phases includes a core of a carbonitride solid solution of Ti and one of a V,Hf,Cr, Ta,Nb, Zr, W and Mo.
    Type: Grant
    Filed: November 16, 1993
    Date of Patent: December 6, 1994
    Assignee: Mitsubishi Materials Corporation
    Inventors: Kiyohiro Teruuchi, Fumihiro Ueda, Niro Odani
  • Amorphous alloy catalysts for conversion of exhaust gases to harmless gases
    Patent number: 5326736
    Abstract: This invention relates to a catalyst for cleaning exhaust gas, which is prepared by dipping in hydrofluoric acid an amorphous alloy composed of 20 to 80 atom % of one or more elements selected from the group consisting of Nb, Ta, Ti and Zr (the sum of Nb and Ta being up to 70 atom %), 0.5 to 20 atom % of one or more elements selected from the group consisting of Ru, Pd, Rh, Pt and Ir, and the balance of one or two of Ni and Co. This catalyst can clean at a low temperature an exhaust gas containing NO or CO discharged from apparatuses or engines wherein various organic substances are burnt.
    Type: Grant
    Filed: April 1, 1992
    Date of Patent: July 5, 1994
    Assignees: Koji Hashimoto, Daiki Engineering Co., Ltd.
    Inventors: Koji Hashimoto, Kiyohiro Teruuchi, Hiroki Habazaki, Asahi Kawashima, Katsuhiko Asami