Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11002896 | Retardation film | Nobuyuki Hatanaka, Shinnosuke Yoshioka, Tatsuaki KASAI | 2021-05-11 |
| 10690824 | Optical laminate | Yosuke Ota, Daichi Fujimoto | 2020-06-23 |
| 6384964 | Optical gain equalizer, and method for producing the optical gain equalizer, and applications of the optical gain equalizer | Kazuyo Mizuno, Osamu Aso, Shu Namiki, Yuichiro Irie | 2002-05-07 |
| 6332053 | Optical fiber | Yuichiro Irie, Takeo Shimizu | 2001-12-18 |
| 6320695 | Optical amplifying apparatus | Kanji Tanaka, Katsuhiko Iwashita | 2001-11-20 |
| 5960135 | Optical integrated circuit for bidirectional communications and method for producing the same | — | 1999-09-28 |
| 5379717 | Method of growing single crystal of compound semiconductors | Seikoh Yoshida, Toshio Kikuta | 1995-01-10 |
| 4904336 | Method of manufacturing a single crystal of compound semiconductor and apparatus for the same | Katsumi Wagatsuma, Toshio Kikuta | 1990-02-27 |