Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D978244 | Ballpoint pen | — | 2023-02-14 |
| D956869 | Ballpoint pen | — | 2022-07-05 |
| D956870 | Ballpoint pen | — | 2022-07-05 |
| D902311 | Ballpoint pen | — | 2020-11-17 |
| D876541 | Mechanical pencil | — | 2020-02-25 |
| D846640 | Mechanical pencil | — | 2019-04-23 |
| D839348 | Ballpoint pen | Tomoaki Shibata | 2019-01-29 |
| D822112 | Ballpoint pen | — | 2018-07-03 |
| D724669 | Mechanical pencil | Shoto Yokoyama | 2015-03-17 |
| D648790 | Ballpoint pen | — | 2011-11-15 |
| D603897 | Mechanical pencil | — | 2009-11-10 |
| D585936 | Ballpoint pen | — | 2009-02-03 |
| D576678 | Cap for a writing instrument | — | 2008-09-09 |
| D541869 | Case for refillable leads for a mechanical pencil | — | 2007-05-01 |
| D538854 | Writing instrument | — | 2007-03-20 |
| D523476 | Mechanical pencil | — | 2006-06-20 |
| D506780 | Ball point pen | — | 2005-06-28 |
| D506504 | Ball point pen | Naohiko Noto | 2005-06-21 |
| D489404 | Ball point pen | — | 2004-05-04 |
| D473898 | Writing instrument | — | 2003-04-29 |
| D466156 | Writing instrument | — | 2002-11-26 |
| D458964 | Ball point pen | — | 2002-06-18 |
| D444499 | Mechanical pencil | — | 2001-07-03 |