Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889719 | Microencapsulated organophosphorus insecticidal composition for agricultural use | Toshiro Ohtsubo, Shigenori Tsuda, Kiyoshi Kasamatsu, Hisami Takeda, Kozo Tsuji | 1989-12-26 |
| 4871766 | Oil-in-water pesticidal emulsion | Shigenori Tsuda, Kozo Tsuji | 1989-10-03 |