Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9709705 | Anti-reflection film and optical element having the same | Yutaka Yamaguchi, Kazuhiko Momoki | 2017-07-18 |
| 9417361 | Optical element, and optical system and optical apparatus using same | Kazuhiko Momoki | 2016-08-16 |
| 8279526 | Optical system and image pickup apparatus having same | Kazuhiko Momoki, Takehiko Nakai, Reona Ushigome, Takeharu Okuno, Daisuke Sano | 2012-10-02 |
| 7710670 | ND filter | Susumu Abe | 2010-05-04 |
| 5715103 | Neutral density (ND) filter | Mitsuharu Sawamura, Susumu Abe | 1998-02-03 |
| 4615603 | Single lens reflex camera | Nozomu Kitagishi, Susumu Itoh | 1986-10-07 |
| 4294890 | Method for preventing reflection | Susumu Ito, Noboru Sugawara | 1981-10-13 |