Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842831 | Chlorine hydrate tank | Kunihiko Fujiwara | 1989-06-27 |
| 4594298 | Zinc-chloride cell | Shunji Shimizu, Yuichi Watakabe, Kunihiko Fujiwara | 1986-06-10 |
| 4277572 | Galvanic cell separator | Kunihiko Fujiwara, Kazuya Osawa, Yoshiteru Takeda | 1981-07-07 |