Issued Patents All Time
Showing 76–84 of 84 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5471336 | Cold start control system and method for use in coherent lightwave communications system | Hideyuki Miyata, Takao Naito | 1995-11-28 |
| 5469288 | Optical filter, method of controlling transmission wavelength thereof, and optical receiver using the method | Hideyuki Miyata | 1995-11-21 |
| 5426502 | Optical fiber interference wavelength/frequency detection apparatus which eliminates a movable element | Hideyuki Miyata, Yoshihto Onoda | 1995-06-20 |
| 5200967 | Optical frequency deviation measure and control device for laser light | Hideyuki Miyata | 1993-04-06 |
| 5050176 | Direct modulation phase-shift-keying system and method | Takao Naito, Terumi Chikama, Shigeki Watanabe, Tetsuya Kiyonaga, Yoshihito Onoda | 1991-09-17 |
| 4965858 | Polarization diversity optical receiver for coherent optical communication | Takao Naito, Terumi Chikama, Shigeki Watanabe, Tetsuya Kiyonaga, Yoshihito Onoda +2 more | 1990-10-23 |
| 4863706 | Process for producing zirconium sols and gels, and process for producing zirconia using the same | Takeo Wada, Hideaki Matsuda | 1989-09-05 |
| 4816239 | Process for producing zirconium sols and gels, and process for producing zirconia using the same | Takeo Wada, Hideaki Matsuda | 1989-03-28 |
| 4731234 | Process for producing zirconium sols and gels, and process for producing zirconia using the same | Takeo Wada, Hideaki Matsuda | 1988-03-15 |