Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7006722 | Waveguide type optical device and position detecting method | Katsuhiko Kurumada, Toshiaki Tamamura, Masatoshi Kanaya, Keiichi Akagawa | 2006-02-28 |
| 5724126 | Method for measuring distribution of zero dispersion wavelengths in an optical fiber and apparatus therefor | Katsumi Iwatsuki, Ken Suzuki, Masatoshi Saruwatari | 1998-03-03 |
| 5083874 | Optical repeater and optical network using the same | Kazuo Aida, Masatoshi Saruwatari, Kiyoshi Nakagawa | 1992-01-28 |
| 5005937 | Optical branching equipment and optical network using the same | Kazuo Aida, Kiyoshi Nakagawa | 1991-04-09 |