Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861799 | Benzoylurea compounds and pesticides containing them | Takahiro Haga, Tadaaki Toki, Toru Koyanagi, Yasuhiro Fujii, Kiyomitsu Yoshida | 1989-08-29 |
| 4855708 | Voltage non-linear resistor | Masami Nakata | 1989-08-08 |