Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865932 | Electric cells and process for making the same | Yoshitomo Masuda, Isamu Shinoda, Masao Ogawa, Toyoo Harada, Takao Ogino +2 more | 1989-09-12 |
| 4841197 | Double-chamber ion source | Eiji Yabe, Kenichi Takagi, Ryota Fukui, Riichi Kikuchi | 1989-06-20 |