Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11365145 | Polarizing glass sheet set for optical isolator and method for manufacturing optical element for optical isolator | Tomoaki Kawamura, Hirokazu Takeuchi | 2022-06-21 |
| 10202298 | Polarizing glass plate and method for manufacturing same, polarizing glass plate set for optical isolator, and method for manufacturing optical element for optical isolator | Tomoaki Kawamura, Hirokazu Takeuchi | 2019-02-12 |
| 5486396 | Optical recording medium and production thereof | Tadahiko Mizukuki, Shinichi Murakami, Tomoyoshi Sasakawa, Kouhei Shizuka, Nobuhisa Kitagawa +1 more | 1996-01-23 |
| 5424102 | Optical recording medium and production thereof | Tadahiko Mizukuki, Shinichi Murakami, Tomoyoshi Sasakawa, Kouhei Shizuka, Nobuhisa Kitagawa +1 more | 1995-06-13 |