Issued Patents All Time
Showing 1–25 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D594060 | Ballpoint pen | Hideo Uchida | 2009-06-09 |
| D593606 | Ballpoint pen | Rika Tezuchi, Etsuyo Yamada | 2009-06-02 |
| D584357 | Cap for a writing instrument | — | 2009-01-06 |
| D572756 | Mechanical pencil | — | 2008-07-08 |
| D547801 | Marking pen | — | 2007-07-31 |
| D499139 | Ball point pen | — | 2004-11-30 |
| D492722 | Marking pen | — | 2004-07-06 |
| D490105 | Ball point pen | — | 2004-05-18 |
| D460486 | Cap for a writing instrument | — | 2002-07-16 |
| D460114 | Cap for a writing instrument | — | 2002-07-09 |
| D459757 | Cap for a writing instrument | — | 2002-07-02 |
| D458965 | Ball point pen | — | 2002-06-18 |
| D458966 | Ballpoint pen cap | — | 2002-06-18 |
| D456844 | Correction pen | — | 2002-05-07 |
| D455179 | Clip for a writing instrument | — | 2002-04-02 |
| D449073 | Case for refillable leads for a mechanical pencil | Kazunari Takahashi | 2001-10-09 |
| 6179124 | Container for lead refill | Kazunari Takahashi | 2001-01-30 |
| D428441 | Correction pen | Toshihiro Isobe | 2000-07-18 |
| D421625 | Ball point pen | — | 2000-03-14 |
| D390873 | Ball point pen | — | 1998-02-17 |
| 5558452 | Holder tube for writing instrument | Takayuki Hoshi | 1996-09-24 |
| D363310 | Shaft for a writing instrument | — | 1995-10-17 |
| D357700 | Housing for a ballpoint pen tip | — | 1995-04-25 |
| D351417 | Cap for a writing instrument | — | 1994-10-11 |
| D351416 | Ball point pen | Shinkichi Katayama | 1994-10-11 |