Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8875871 | Conveyance device for granular materials | Morio Iwata, Hajime Takasugi | 2014-11-04 |
| 8772444 | Method for producing petroleum resin | Hajime Takasugi, Katsumi Furuta | 2014-07-08 |
| 4851263 | Method and apparatus for application of wax on wafers | Keiichi Ishii, Yukio Tsutsumi, Mitsuji Koyama | 1989-07-25 |