Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888049 | Synergist for biocide | Tetsuji Iwasaki | 1989-12-19 |
| 4812158 | Caking-preventing agent for fertilizer | Tetsuji Iwasaki | 1989-03-14 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888049 | Synergist for biocide | Tetsuji Iwasaki | 1989-12-19 |
| 4812158 | Caking-preventing agent for fertilizer | Tetsuji Iwasaki | 1989-03-14 |