Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4817332 | Method of enhancing plant growth and apparatus for performing the same | Akira Ikeda, Kenji Ezaki, Toshitsugu Ishii, Isao Itakura | 1989-04-04 |
SN
Shigeki Nakayama
Overall (1989): #57,178 of 140,708Top 45%
1
Patents 1989