Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4328166 | Production of substituted phenylurea | Hiroshi Kishida, Nobushige Itaya, Ichiki Takemoto | 1982-05-04 |
| 4320040 | Method for preparing highly absorbent hydro-gel polymers | Shuji Kitamura, Toshifumi Tamura, Tsuneyuki Nagase | 1982-03-16 |