Patents by Inventor Yoshihiro Sekizawa

Yoshihiro Sekizawa 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).

  • Contactor including a covalent bond layer
    Patent number: 8766659
    Abstract: A contactor includes a contactor base material including a first material and a conductor film including a second material. The conductor film is formed only on a contact surface with an electrode of a semiconductor apparatus at a tip of the contactor film.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: July 1, 2014
    Assignee: Fujitsu Semiconductor Limited
    Inventors: Shigeyuki Maruyama, Yoshihiro Sekizawa, Tomohiro Suzuka
  • CONTACTOR, TEST DEVICE FOR SEMICONDUCTOR APPARATUS, AND METHOD FOR MANUFACTURING SEMICONDUCTOR APPARATUS
    Publication number: 20110212551
    Abstract: A contactor includes a contactor base material including a first material and a conductor film including a second material. The conductor film is formed only on a contact surface with an electrode of a semiconductor apparatus at a tip of the contactor film.
    Type: Application
    Filed: February 24, 2011
    Publication date: September 1, 2011
    Applicant: FUJITSU SEMICONDUCTOR LIMITED
    Inventors: Shigeyuki MARUYAMA, Yoshihiro Sekizawa, Tomohiro Suzuka
  • High frequency power source having corrected power output
    Patent number: 5543689
    Abstract: A high frequency power source of the invention comprises power supplying means for amplifying a high frequency signal and for supplying high frequency power; and output regulation means for monitoring the high frequency power and regulating the power supplying means according to the high frequency power.A plasma generator comprises a chamber for generating plasma on the basis of high frequency power; and an high frequency power supply for supplying high frequency power to the chamber, the high frequency power supply includes, power supplying means for amplifying a high frequency signal and supplying high frequency power; and output regulation means for monitoring the high frequency power and power supplying means and regulating the power supplying means according to the high frequency power.
    Type: Grant
    Filed: September 7, 1994
    Date of Patent: August 6, 1996
    Assignee: Fujitsu Limited
    Inventors: Ryusuke Ohta, Yoshihiro Sekizawa