Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6819250 | Out-of-liquid sensor, and liquid supply device using same | — | 2004-11-16 |
| 5961239 | Barrel cylinder for writing instrument | Takeshi Kobayashi | 1999-10-05 |
| 4357099 | Optical imaging system | Katsumi Taguchi, Muneo Kuroda | 1982-11-02 |