Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6359150 | Photochromic compound and optical function device using the same | Masato Fukudome | 2002-03-19 |
| 6043940 | Optical system for optical recording | Shinji Inoue, Satoru Tsubokura, Hiroyuki Kinoshita, Takashi Uto | 2000-03-28 |
| 4703020 | Process for the production of jewelling and ornamental material | Yuji Nakano, Tatuo Kobayashi | 1987-10-27 |
| 4608307 | Jewelling and ornamental material and process for production thereof | Yuji Nakano, Tatuo Kobayashi | 1986-08-26 |