Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6547466 | Mechanical pencil | Yoshio Noguchi | 2003-04-15 |
| 6517271 | Double-chuck mechanical pencil | Shouji Anzai, Yoshihide Mitsuya | 2003-02-11 |
| 6517272 | Double-chuck mechanical pencil | Shouji Anzai, Yoshihide Mitsuya | 2003-02-11 |