Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11471613 | Syringe needle removal apparatus | Koji Hagihira, Kazuma Shibata | 2022-10-18 |
| 10350367 | Needle removal operation cover | Koji Hagihira | 2019-07-16 |
| 9664287 | Shaft seal device, seal member and hydroelectric power generation device | — | 2017-05-30 |
| 4553138 | Fire alarm system | Hiroshi Nakanishi, Takashi Nakanishi | 1985-11-12 |
| 4388617 | Fire alarm device having thermal sensitivity enhancement | Hiroshi Nakanishi, Takashi Nakanishi | 1983-06-14 |