Issued Patents All Time
Showing 51–52 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4205054 | Process for recovery of nitric acid from nitrates | Yujiro Sugahara, Kiyoshi Takai, Tatuya Kondo | 1980-05-27 |
| 4188268 | Process for an electrode for a lead battery | Yujiro Sugahara, Yoshibumi Noshi, Akira Takahashi, Masanori Ito, Hisashi Tuchida | 1980-02-12 |