Patents by Inventor Hosei Mitsuzawa

Hosei Mitsuzawa 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).

  • Method of burn-in testing for thermally assisted head
    Patent number: 8509036
    Abstract: A plurality of laser diode units is tested in a bar state, each of the laser diode units in which a laser diode that includes a first electrode and a second electrode formed on surfaces facing each other and that is mounted on a mounting surface of a submount such that the first electrode faces the mounting surface of the submount.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: August 13, 2013
    Assignees: TDK Corporation, Rohm Co., Ltd.
    Inventors: Koji Shimazawa, Kosuke Tanaka, Ryuji Fujii, Takashi Honda, Yoshiteru Nagai, Tsuguki Noma, Hosei Mitsuzawa
  • METHOD OF BURN-IN TESTING FOR THERMALLY ASSISTED HEAD
    Publication number: 20120147717
    Abstract: A plurality of laser diode units is tested in a bar state, each of the laser diode units in which a laser diode that includes a first electrode and a second electrode formed on surfaces facing each other and that is mounted on a mounting surface of a submount such that the first electrode faces the mounting surface of the submount.
    Type: Application
    Filed: December 9, 2010
    Publication date: June 14, 2012
    Applicants: ROHM CO., LTD., TDK Corporation
    Inventors: Koji Shimazawa, Kosuke Tanaka, Ryuji Fujii, Takashi Honda, Yoshiteru Nagai, Tsuguki Noma, Hosei Mitsuzawa