Patents by Inventor Satoshi Suzumura

Satoshi Suzumura 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).

  • Polishing composition and polishing method employing it
    Patent number: 6428721
    Abstract: A polishing composition comprising the following components: (a) an abrasive, (b) &agr;-alanine, (c) hydrogen peroxide, and (d) water.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: August 6, 2002
    Assignee: Fujimi Incorporated
    Inventors: Katsuyoshi Ina, Tadahiro Kitamura, Satoshi Suzumura
  • Polishing composition and polishing method employing it
    Patent number: 6139763
    Abstract: A polishing composition comprising the following components:(a) an abrasive,(b) an oxidizing agent capable of oxidizing tantalum,(c) a reducing agent capable of reducing tantalum oxide, and(d) water.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: October 31, 2000
    Assignee: Fujimi Incorporated
    Inventors: Katsuyoshi Ina, Tadahiro Kitamura, Tomohide Kamiya, Satoshi Suzumura
  • Polishing composition
    Patent number: 6027554
    Abstract: A polishing composition comprising silicon nitride fine powder, water and an acid.
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: February 22, 2000
    Assignee: Fujimi Incorporated
    Inventors: Hitoshi Kodama, Satoshi Suzumura, Noritaka Yokomichi, Shirou Miura, Hideki Otake, Atsunori Kawamura, Masatoki Ito
  • Polishing composition
    Patent number: 5733819
    Abstract: A polishing composition comprising silicon nitride fine powder, water and an acid.
    Type: Grant
    Filed: January 27, 1997
    Date of Patent: March 31, 1998
    Assignee: Fujimi Incorporated
    Inventors: Hitoshi Kodama, Satoshi Suzumura, Noritaka Yokomichi, Shirou Miura, Hideki Otake, Atsunori Kawamura, Masatoki Ito