Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE34903 | Vinylamine copolymer, flocculating agent and paper strength increasing agent using the same, as well as process for producing the same | Mitsuaki Shiraga, Shigeru Sawayama, Kohichi Satoh | 1995-04-11 |
| RE34713 | Vinylamine copolymer flocculating agent etc. | Mitsuaki Shiraga, Shigeru Sawayama, Kohichi Satoh | 1994-08-30 |
| 5064909 | Vinylamine copolymer, flocculating agent and paper strength increasing agent using the same, as well as process for producing the same | Mitsuaki Shiraga, Shigeru Sawayama, Kohichi Satoh | 1991-11-12 |
| 5037927 | Vinylamine copolymer and process for producing same | Mitsuaki Shiraga, Shigeru Sawayama, Kohichi Satoh | 1991-08-06 |
| 4976976 | Feed additive for ruminants | Hiroyoshi Okada, Masao Miyake, Takaaki Kobayashi, Takahumi Tosa, Hiroyuki Satou | 1990-12-11 |
| 4957977 | Vinylamine copolymer, flocculating agent etc. | Mitsuaki Shiraga, Shigeru Sawayama, Kohichi Satoh | 1990-09-18 |
| 4937083 | Feed additive for ruminants | Hiroyoshi Okada, Masao Miyake, Takaaki Kobayashi, Takahumi Tosa, Hiroyuki Satou | 1990-06-26 |
| 4863972 | Porous cross-linked polyvinyl alcohol particles, process for producing the same, and separating agent composed of the same | Hiroshi Kusano, Eiji Miyata, Takayuki Tashiro | 1989-09-05 |
| 4857576 | Method for rendering a flammable polymer material flame-resistant | Hiromi Kochi, Kenji Fukunaga, Tsuyoshi Ito | 1989-08-15 |
| 4808683 | Vinylamine copolymer, flocculating agent using the same, and process for preparing the same | Mitsuaki Shiraga, Shigeru Sawayama, Kohichi Satoh | 1989-02-28 |
| 4696745 | Separating agent with fluoroalkyl group | Hiroshi Kusano, Eiji Miyata, Hirohisa Kubota | 1987-09-29 |
| 4543365 | Method for increasing the porosity of a cross-linked copolymer | Tsuyoshi Ito, Kiyoto Ando, Hiromi Teshima | 1985-09-24 |
| 4495250 | Anion exchange resin of surface functional type and the process for producing the same | Hidenaga Ouchi, Akihiro Shimura | 1985-01-22 |
| 4350773 | Weakly acidic cation exchange resin and process for producing same | Hidenaga Ouchi | 1982-09-21 |
| 4306031 | Weakly acidic cation exchange resin and process for producing same | Hidenaga Ouchi | 1981-12-15 |
| 4251442 | Method for synthesis of penicillin | Yoshiharu Morita, Tsuyoshi Ito, Shigenori Wada | 1981-02-17 |