Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12366683 | Lens unit having glass lens and combined resin lens | Takayuki SUGINOME, Osamu Nakayama, Masashi Yoshimura | 2025-07-22 |
| 11768317 | Lens unit having glass lens, resin lenses, and reflection preventing film | Takayuki SUGINOME, Osamu Nakayama, Masashi Yoshimura | 2023-09-26 |
| 8300327 | Production method of optical element, optical element forming mold and optical element | Shuji Seki, Hideki Komiya, Makoto Aihara, Masashi Yoshimura | 2012-10-30 |
| 6319580 | Recording disk and producing method therefor | Tatsuo Araki, Hiroyuki Ohta, Hiroyuki Hirata, Osamu Ishizaki, Tsuyoshi Maro | 2001-11-20 |
| 4847109 | Method of a making magnetic recording medium | Kunio Wakai | 1989-07-11 |