Patents by Inventor Kazuki Natsukawa

Kazuki Natsukawa 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).

  • Gas sensor
    Patent number: 6105417
    Abstract: Gas sensor materials composed of carbon mixture or metal-containing carbon mixture obtained as evaporated matter by arc discharge which occurs by passing an alternating current or a direct current with electric current density of 0.8 to 3.5 A/mm.sup.2 on discharge surfaces of carbon electrodes or metal-containing carbon electrodes in an inert gas under a pressure of 0.1 to 600 torr.
    Type: Grant
    Filed: April 15, 1999
    Date of Patent: August 22, 2000
    Assignees: Osaka Prefecture, Daido Hoxan Inc.
    Inventors: Toshikazu Nosaka, Yoshiaki Sakurai, Kazuki Natsukawa, Tsutomu Yotsuya, Shunsaku Kawabata, Katsumi Nishida, Kazuhiro Nishikawa, Kiyohiro Mori, Hiromi Kiyama, Yoshinori Omori