Patents by Inventor Kosuke Tamaru

Kosuke Tamaru 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).

  • Iron component and a manufacturing method therefor
    Patent number: 6780257
    Abstract: A base plate of a stainless-steel body material formed by pressing is polished and cleared of burrs by means of an abrasive material that consists mainly of Fe2O3 in a polishing process. The polished base plate is heated to a heat treatment temperature for solid solution in a reducing atmosphere in a heat treatment process. In this heat treatment process, an oxide in the constituents of minute fragments of the abrasive material in the surface of the body material of the base plate is reduced to leave iron, which is dispersed into the body material.
    Type: Grant
    Filed: January 17, 2002
    Date of Patent: August 24, 2004
    Assignees: IBM Japan Ltd., NHK Spring Co., Ltd.
    Inventors: Tsuyoshi Nagata, Hiroyasu Tsuchida, Yoshio Uematsu, Kiyoshi Satoh, Kosuke Tamaru
  • Iron component and a manufacturing method therefor
    Publication number: 20020117023
    Abstract: A base plate of a stainless-steel body material formed by pressing is polished and cleared of burrs by means of an abrasive material that consists mainly of Fe2O3 in a polishing process. The polished base plate is heated to a heat treatment temperature for solid solution in a reducing atmosphere in a heat treatment process. In this heat treatment process, an oxide in the constituents of minute fragments of the abrasive material in the surface of the body material of the base plate is reduced to leave iron, which is dispersed into the body material.
    Type: Application
    Filed: January 17, 2002
    Publication date: August 29, 2002
    Applicant: IBM Japan Ltd.
    Inventors: Tsuyoshi Nagata, Hiroyasu Tsuchida, Yoshio Uematsu, Kiyoshi Satoh, Kosuke Tamaru