Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7387840 | Light ray cut filter | — | 2008-06-17 |
| 7123412 | Optical device | Hideshi Saitoh | 2006-10-17 |
| 5779402 | Chip adhesion preventing device for preventing adhesion of chips to drill shank | — | 1998-07-14 |
| 4872934 | Method of producing hybrid multi-layered circuit substrate | — | 1989-10-10 |
| 4562301 | Through-hole pin for laminated circuit substrates and method of insertion thereof | Seiichi Tobe | 1985-12-31 |
| 4456798 | Panel keyboard with irregular surfaced spacer | Shoichiro Iwai | 1984-06-26 |
| 4421958 | Panel keyboard with air permeable spacer | — | 1983-12-20 |