Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8170385 | Light coupler and manufacturing method thereof | Kazuhiro Terada, Kenji Haga, Yukitoshi Inui, Akiko Okita, Akari Nakao | 2012-05-01 |
| 7899287 | Optical branching-coupling device, and manufacturing method and optical module of the same | Kenji Haga, Yukitoshi Inui, Kazuhiro Terada, Akiko Okita, Akari Nakao | 2011-03-01 |
| 6413680 | Optical recording method, optical recording medium, and optical recording system | Osamu Watanabe, Yoshimasa Kawata, Chikara Egami, Okihiro Sugihara, Naomichi Okamoto +1 more | 2002-07-02 |
| 5949943 | Waveguide device and a method of producing the same | Osamu Watanabe, Akane Okada, Hiroshi Ito | 1999-09-07 |