Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5505211 | Biopsy needles | Chikara Nakao, Takefumi Daido, Tetsuo Sekine, Masaru Maruyama | 1996-04-09 |
| 5026350 | Set of double needles for injecting liquid medicine | Masataka Tanaka, Tetsuo Sekine, Hiroshi Takahashi, Masaru Maruyama | 1991-06-25 |
| 4846799 | Set of double needles for injecting liquid medicine | Masataka Tanaka, Tetsuo Sekine, Hiroshi Takahashi, Masaru Maruyama | 1989-07-11 |
| 4643196 | Biopsy needle set | Masataka Tanaka, Tetsuo Sekine, Koji Isobe, Masaru Maruyama | 1987-02-17 |