Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6667133 | Gelating agent for alkaline cell and alkaline cell | Takashi Sumiya, Yukio Zenitani | 2003-12-23 |
| 6303711 | Water-absorbent or water-retention material and production method thereof | Takashi Sumiya, Yoji Fujiura, Mihoko Nomoto | 2001-10-16 |
| 6237341 | Boiler scale collecting device before steam turbine | Yoshitaka Uchida, Akihiro Sato, Eisaku Nakashima, Toshihiro Sato, Keishi Suga +2 more | 2001-05-29 |
| 6130304 | Water-absorbent or water-retention material and production method thereof | Takashi Sumiya, Yoji Fujiura, Mihoko Nomoto | 2000-10-10 |
| 5838863 | Cable sealed with a polyurethane resin and sealing process of the same | Yoji Fujiura, Yukio Zenitani | 1998-11-17 |
| 5664523 | Materials for the treatment of pet excretions | Kengo Ochi, Noriyuki Kimura, Yukio Zenitani, Yoji Fujiura | 1997-09-09 |
| 4572572 | Locking device of hood for ventilator window in automobile | Shuji Nakamura, Shigehiro Yasuki | 1986-02-25 |
| 4564232 | Automobile door | Yoshitsugu Fujimori, Ryouhei Adachi, Hiroo Ebisawa, Yukio Kurachi | 1986-01-14 |