Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D489406 | Mechanical pencil | — | 2004-05-04 |
| D472577 | Ball-point pen | Masashi Ando | 2003-04-01 |
| 6414452 | Waveform control device for vibrating tables and method thereof | Yukihito Okuda, Akihiro Maekawa, Takaharu Hiroe | 2002-07-02 |
| D454590 | Cap of ball-point pen | — | 2002-03-19 |
| D407114 | Mechanical pencil | — | 1999-03-23 |
| D401624 | Ballpoint pen | — | 1998-11-24 |
| D400922 | Writing instrument | — | 1998-11-10 |
| D378601 | Ballpoint pen | — | 1997-03-25 |
| D346401 | Mechanical pencil | — | 1994-04-26 |