Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9887772 | Transmission device, transmission network system, and path delay measuring method | Naoya Okada, Yasuyuki Mitsumori, Ryuichi Moriya, Tsuyoshi Ohigawa | 2018-02-06 |
| 9497077 | Apparatus for performing loop-free transmission in a communication network | Yasuyuki Mitsumori | 2016-11-15 |
| 7778160 | Device for synchronizing between an active unit and a standby unit | Takashi Kaiga, Koichi Sugama, Tsutomu Chikazawa, Yukio Katayanagi, Hideo Abe +2 more | 2010-08-17 |
| 7408475 | Power supply monitoring device | Koichi Sugama, Noboru Shimizu, Tsutomu Chikazawa, Ryuji Kayama, Yukio Katayanagi +1 more | 2008-08-05 |
| 6506007 | Fastening bolt | Mitsuharu Kishimoto, Yukihiko Koza, Hiroki Nomoto | 2003-01-14 |
| 5246482 | Molten metal producing and refining method | Keikichi Murakami, Mitsuharu Kishimoto, Yoshio Uchiyama, Masaru Takiura, Satoshi Tatsuta +2 more | 1993-09-21 |
| 4940488 | Method of smelting reduction of ores containing metal oxides | Takuya Maeda, Keikichi Murakami, Tsutomu Yamada, Mitsuharu Kishimoto | 1990-07-10 |
| 4886246 | Metal-making apparatus involving the smelting reduction of metallic oxides | Takuya Maeda, Keikichi Murakami, Tsutomu Yamada, Mitsuharu Kishimoto, Yoshihiko Takemura | 1989-12-12 |