Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7083349 | Writing implement | Hisashi Iida, Kazuaki Matsumoto, Seiichi Kobayashi, Yusuke Kobayashi | 2006-08-01 |
| 7070352 | Writing implement | Hisashi Iida, Kazuaki Matsumoto, Seiichi Kobayashi, Takeshi Kobayashi, Yusuke Kobayashi +1 more | 2006-07-04 |
| 7011466 | Writing implement | Hisashi Iida | 2006-03-14 |
| 5580374 | Aqueous ink composition for ball point pen | Shigeru Miyazaki | 1996-12-03 |