Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5856190 | Multistage plant culture method and multistage plant culture apparatus for use therein | Kazuya Iwai | 1999-01-05 |
| 4258139 | Process for producing flame-resistant foam resins | Toshio Yukuta, Takumi Ishiwaka | 1981-03-24 |
| 4234695 | Method of producing polyurea foams | Toshio Yukuta, Takumi Ishiwaka | 1980-11-18 |