Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6662139 | Drawing apparatus and method of attaching balance weights | Masao Inoue, Yasuyuki Koyagi, Toshio Tamura, Junichi Nagamine | 2003-12-09 |
| 6505142 | Drawing apparatus and method of attaching balance weights | Masao Inoue, Yasuyuki Koyagi, Toshio Tamura, Junichi Nagamine | 2003-01-07 |