Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10760993 | Measurement method, measurement device, and non-transitory recording medium | Ryo Maruyama, Fumihiko Ito | 2020-09-01 |
| 10025032 | Alignment device, splicing device, aligning method, and splicing method for optical fibers | Hiroki Hamaguchi | 2018-07-17 |
| 9507082 | Two-mode optical fiber and light transmission path | Ryo Maruyama, Shoichiro Matsuo | 2016-11-29 |
| 9297952 | Optical fiber and optical transmission line | Ryo Maruyama, Shoichiro Matsuo, Masaharu Ohashi | 2016-03-29 |
| 9188735 | Optical fiber, optical transmission line, and method for manufacturing optical fiber | Ryo Maruyama, Shoichiro Matsuo, Masaharu Ohashi | 2015-11-17 |
| 5357362 | Optical telephone using optical modulator | Yuji Azuma, Yoshihiro Shibata, Shinji Tamura, Nobuhiro Ikawa, Akira Fukuda +1 more | 1994-10-18 |
| 5259045 | Optical modulation method operable in an optical transmission path and an optical modulator using the optical modulation method | Yuji Azuma, Yoshihiro Shibata, Shinji Tamura, Nobuhiro Ikawa, Akira Fukuda +1 more | 1993-11-02 |
| 4913521 | Single-polarization optical fiber | Katsusuke Tajima, Yutaka Sasaki, Masaharu Ohashi, Makoto Tsubokawa | 1990-04-03 |
| 4755022 | Zero dispersion single mode optical fiber with center core and side core in the 1.5 .mu.m wavelength region | Masaharu Ohashi, Shigeyuki Seikai, Naoshi Uesugi, Chihaya Tanaka | 1988-07-05 |
| 4507078 | Wafer handling apparatus and method | Johann Tam, Jalal Ashjaee, Tuan Ngo, Susan W. Kung | 1985-03-26 |