Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6917475 | Optical element | Naohito Shiga, Kunihisa Obi, Atsushi Goto, Tetsuhide Takeyama | 2005-07-12 |
| 5773403 | Cleaning and drying solvent | Masamichi Hijino, Kunihiko Uzawa | 1998-06-30 |
| 5562945 | Method for post-cleaning finishing drying | Masamichi Hijino, Kazuhisa Karaki | 1996-10-08 |
| 4778253 | Device for retaining an optical part | Naohito Siga, Naoyuki Seo, Takae Harutake | 1988-10-18 |
| 4725126 | Lens retaining device | Naohito Siga, Naoyuki Seo, Takae Harutake | 1988-02-16 |