Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D494219 | Mechanical pencil | — | 2004-08-10 |
| D489088 | Ball-point pen | Masashi Ando | 2004-04-27 |
| D484537 | Ball-point pen | Tetsuhiro Kurita | 2003-12-30 |
| D403704 | Ballpoint pen | — | 1999-01-05 |
| 5415698 | Method for cleaning semiconductor wafers | Sugao Fujinaga, Yoshitaka Dansui | 1995-05-16 |
| 5292373 | Apparatus and process for washing wafers | Yoshitaka Dansui | 1994-03-08 |