Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8557459 | Fuel cell system, method of stopping operation of the fuel cell system, and method of starting operation of the fuel cell system | Takeshi Matsubara, Takao FUKUMIZU, Masahiro Mohri, Ryugo Suzuki, Hiromichi Yoshida | 2013-10-15 |
| 8349994 | Electrode electrolyte for polymer-type fuel cell, and use thereof | Toshiaki Kadota, Yoshitaka Yamakawa, Nagayuki Kanaoka, Takaki Nakagawa | 2013-01-08 |
| 5103479 | Encipher method and decipher method | Kazuo Takaragi, Ryoichi Sasaki | 1992-04-07 |
| 4982429 | Encipher method and decipher method | Kazuo Takaragi, Ryoichi Sasaki | 1991-01-01 |
| 4969190 | Encrypting system of data | Kazuo Takaragi, Yasuhiko Nagai, Ryoichi Sasaki | 1990-11-06 |