Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7303351 | Writing instrument and welding method of writing point assembly and writing instrument parts connecting structure and connecting method | Kazuhiko Furukawa, Kiyoshi Fujisawa, Yoshihide Ishii | 2007-12-04 |