Patents by Inventor Masato Katoh

Masato Katoh 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).

  • Optical film and liquid crystal film
    Patent number: 11966008
    Abstract: The present invention provides an optical film having a liquid crystal layer having excellent durability, and a liquid crystal film. The optical film of the present invention has an organic base material and a liquid crystal layer disposed on the organic base material, the liquid crystal layer contains a photo-alignment compound, and in the liquid crystal layer, the photo-alignment compound is unevenly distributed on a side of the organic base material.
    Type: Grant
    Filed: August 1, 2022
    Date of Patent: April 23, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Kazushige Nakagawa, Hideyuki Nishikawa, Masato Nakao, Shunya Katoh, Hiroyuki Hagio, Yutaka Nozoe, Kunihiro Kasezawa, Yuki Nakamura
  • Thin-film magnetic head manufacturing method and apparatus
    Patent number: 6419552
    Abstract: In a thin-film magnetic head manufacturing method and apparatus, lapping is continued until the MR height of a magnetoresistive sensor falls into a finish tolerance range and the lapping time from the beginning of lapping exceeds a predetermined time, thereby substantially reducing the recession between an ABS of a slider bar and a surface of a thin-film magnetic element opposing a recording medium.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: July 16, 2002
    Inventors: Masato Katoh, Shigenobu Miyajima
  • Thin-film magnetic head manufacturing method and apparatus
    Publication number: 20010034185
    Abstract: In a thin-film magnetic head manufacturing method and apparatus, lapping is continued until the MR height of a magnetoresistive sensor falls into a finish tolerance range and the lapping time from the beginning of lapping exceeds a predetermined time, thereby substantially reducing the recession between an ABS of a slider bar and a surface of a thin-film magnetic element opposing a recording medium.
    Type: Application
    Filed: May 23, 2001
    Publication date: October 25, 2001
    Inventors: Masato Katoh, Shigenobu Miyajima
  • Thin-film magnetic head manufacturing method and apparatus
    Patent number: 6299507
    Abstract: In a thin-film magnetic head manufacturing method and apparatus, lapping is continued until the MR height of a magnetoresistive sensor falls into a finish tolerance range and the lapping time from the beginning of lapping exceeds a predetermined time, thereby substantially reducing the recession between an ABS of a slider bar and a surface of a thin-film magnetic element opposing a recording medium.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: October 9, 2001
    Assignee: Alps Electric Co., Ltd.
    Inventors: Masato Katoh, Shigenobu Miyajima