Patents by Inventor Kazumasa Tsuchihashi

Kazumasa Tsuchihashi 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).

  • Fixed abrasive wire
    Patent number: 8206472
    Abstract: There is provided a fixed abrasive wire having abrasives fixed thereon with a superior fixing strength. The abrasives are fixed on the wire by electroplating in which the wire is subjected to a degreasing step, an acid cleaning step, a rinsing step and an electroplating step sequentially. A plating liquid used in the electroplating step contains a nickel-containing organic acid or a nickel-containing inorganic acid, a leveling agent, and the abrasives. It is a feature that a plated coat being over the top of each of the abrasives has a smaller thickness than a theoretical value.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: June 26, 2012
    Assignee: Japan Fine Steel Co., Ltd.
    Inventors: Yasuhiro Tani, Yukinobu Tokunaga, Kazumasa Tsuchihashi
  • Fixed Abrasive Wire
    Publication number: 20080261499
    Abstract: There is provided a fixed abrasive wire having abrasives fixed thereon with a superior fixing strength. The abrasives are fixed on the wire by electroplating in which the wire is subjected to a degreasing step, an acid cleaning step, a rinsing step and an electroplating step sequentially. A plating liquid used in the electroplating step contains a nickel-containing organic acid or a nickel-containing inorganic acid, a leveling agent, and the abrasives. It is a feature that a plated coat being over the top of each of the abrasives has a smaller thickness than a theoretical value.
    Type: Application
    Filed: December 27, 2005
    Publication date: October 23, 2008
    Applicant: JAPAN FINE STEEL CO., LTD.
    Inventors: Yasuhiro Tani, Yukinobu Tokunaga, Kazumasa Tsuchihashi