Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9592702 | Friction body, writing instrument and writing instrument set | Takashi Wase, Michiyuki Yasuda | 2017-03-14 |
| 6076987 | Ballpoint pen and cap therefor | Nobuo Sekine, Takehiko Yokosuka, Masashi Andoh | 2000-06-20 |