Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D359757 | Writing instrument | Yasuo Otake | 1995-06-27 |
| D359758 | Grip for a writing instrument | — | 1995-06-27 |
| 4603994 | Ball-holder of a ball-point pen | Yoshinobu Mitsuda, Koji Mori | 1986-08-05 |