Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7463430 | Diffraction element, objective lens unit, optical pickup, optical disc apparatus and design method for diffraction element | Satoshi Kawakita, Jin Sato, Kyu Kanno, Motoo Aiba | 2008-12-09 |
| 7378454 | Polyurethane composition and polishing pad | Takashi Masui, Masahiko Nakamori, Koichi Ono, Kazuyuki Ogawa, Atsushi Kazuno +1 more | 2008-05-27 |
| 7329170 | Method of producing polishing pad | Koichi Ono, Tetsuo Shimomura, Masahiko Nakamori, Shigeru Komai, Masayuki Tsutsumi | 2008-02-12 |
| 7192340 | Polishing pad, method of producing the same, and cushion layer for polishing pad | Koichi Ono, Tetsuo Shimomura, Masahiko Nakamori, Shigeru Komai, Masayuki Tsutsumi | 2007-03-20 |
| 7054074 | Objective lens and optical pickup apparatus, information recording/reproducing apparatus | Takeshi Mizuno | 2006-05-30 |
| 6188528 | Optical lens, and optical pickup and optical disc apparatus using such lens | Norio Fukasawa | 2001-02-13 |
| 5135843 | Silver halide photographic element | Yasuhiko Takamuki, Takeshi Habu, Toshiharu Nagashima | 1992-08-04 |