Patents by Inventor Masao Hiroko

Masao Hiroko 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).

  • Apparatus and method for measuring a temperature of a high temperature liquid contained in a furnace
    Patent number: 5585914
    Abstract: An apparatus and method for measuring a temperature of a high temperature liquid contained in a furnace. An optical fiber covered with a metallic tube is inserted through a passageway inside a nozzle arranged on a furnace wall of the furnace. The nozzle communicates with an interior of the furnace containing the liquid, and gas is supplied into the passageway inside the nozzle to prevent the nozzle from clogging. The metal-covered optical fiber is fed through the passageway inside the nozzle into the liquid such that spectral light radiated from the liquid enters a tip of the metal-covered optical fiber and is propagated therealong. The temperature of the liquid is determined by a radiation thermometer, coupled to the metal-covered optical fiber, based on the spectral light propagated along the metal-covered optical fiber.
    Type: Grant
    Filed: October 4, 1994
    Date of Patent: December 17, 1996
    Assignee: NKK Corporation
    Inventors: Mitsuo Yamasaki, Shigeru Inoue, Ichiro Kikuchi, Masaki Komatani, Genji Kanatani, Masao Hiroko, Takafumi Yoshikawa, Masashi Edahiro, Yoshimi Komatsu, Akihiko Inoue, Hideaki Mizukami, Takeshi Murai, Hideo Nakamura, Yoshiro Yamada, Yuji Adachi, Hirofumi Nakamura, Keiichi Miyoshi, Kazusi Miyamoto, Masao Doi, Shirou Takene