Issued Patents All Time
Showing 51–53 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5214627 | Optical disk having read-exclusive and write-enable regions | Yasunobu Hashimoto, Miyozo Maeda, Seiya Ogawa | 1993-05-25 |
| 4847074 | Whitening cosmetic | Shinkichi Hatae | 1989-07-11 |
| 4496442 | Process for generating hydrogen gas | Toshimasa Okazaki, Akihiro Sakata, Kyozi Nagai | 1985-01-29 |