Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5641847 | Oil-absorbent polymer and use therefor | Yoshiyuki Hozumi, Toru Inaoka, Tomoki Gomi, Toru Uno, Kenji Rakutani | 1997-06-24 |
| 5374600 | Oil-absorbent polymer and use therefor | Yoshiyuki Hozumi, Toru Inaoka, Tomoki Gomi, Toru Uno, Kenji Rakutani | 1994-12-20 |
| 5220054 | Process for producing aminocarboxylic acid salt | Yoshiaki Urano, Yukio Kadono | 1993-06-15 |
| 5220055 | Process for producing aminocarboxylic acid salts | Yoshiaki Urano, Yukio Kadono | 1993-06-15 |
| 4872885 | Dispersant for aqueous slurry of carbonaceous solid and aqueous carbonaceous solid slurry composition incorporating said dispersant therein | Tsuneo Tsubakimoto, Hayami Ito, Shuhei Tatsumi, Yoshihiro Kajibata, Shoichi Takao +4 more | 1989-10-10 |
| 4782183 | Method for manufacture of amino-carboxylic acid salts | Hiromi Yokoyama, Hideyuki Nishibayashi | 1988-11-01 |
| 4709090 | Method of production of oxydicarboxylic acid salts | Hideyuki Nishibayashi, Shigeyoshi Iio, Fumio Watanabe | 1987-11-24 |