Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4844916 | Disturbing agent against intercommunication between different sexes of insects | Akira Yamamoto | 1989-07-04 |
| 4834745 | Sustained-release dispenser of sex pheromone of insects | Akira Yamamoto, Noboru Aiba, Shigehiro Nagura | 1989-05-30 |