Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6329410 | Water-base liquid preparation | Tsuneo Fujii | 2001-12-11 |
| 4408108 | Puffer type gas interrupter | Keizo Takatsuka, Hiroshi Yamamoto | 1983-10-04 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6329410 | Water-base liquid preparation | Tsuneo Fujii | 2001-12-11 |
| 4408108 | Puffer type gas interrupter | Keizo Takatsuka, Hiroshi Yamamoto | 1983-10-04 |