Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7483609 | Image wavelength conversion device, method of manufacturing the device, and image conversion system using the device | — | 2009-01-27 |
| 6556727 | Travelling wave-type optical modulator | Jungo Kondo, Atsuo Kondo, Kenji Aoki, Osamu Mitomi | 2003-04-29 |
| 6363189 | Directional coupler | Jungo Kondo, Tatsuo Kawaguchi, Minoru Imaeda | 2002-03-26 |
| 6226423 | Optical waveguide element | Jungo Kondo, Takami Hirai, Minoru Imaeda | 2001-05-01 |
| 6219469 | Optical waveguide devices, traveling-wave light modulators, and process for producing optical waveguide devices | Minoru Imaeda, Takashi Yoshino, Kenji Kato | 2001-04-17 |
| 6111682 | Light modulators | Jungo Kondo, Takashi Yoshino, Minoru Imaeda | 2000-08-29 |
| 5991067 | Optical waveguide substrate, optical waveguide device, second harmonic generation device, and process of producing optical waveguide substrate | Tatsuo Kawaguchi, Minoru Imaeda | 1999-11-23 |
| 4866406 | Wide-band optical modulator | Kazunori Miura | 1989-09-12 |
| 4746191 | Optical switch | Shojiro Kawakami, Mitsuhiro Takata, Sachio Toyota | 1988-05-24 |