TSUZAKI; Tetsufumi
Patent Applications and Registrations
Patent applications and USPTO patent grants for TSUZAKI; Tetsufumi.The latest application filed is for "optical transmission path inspecting system, and optical transmission path inspecting device".
- TSUZAKI; Tetsufumi - Yokohama-shi JP
- Tsuzaki; Tetsufumi - Yokohama JP
- TSUZAKI; Tetsufumi - Kanagawa JP
| Patent | Date |
|---|---|
| Optical Transmission Path Inspecting System, And Optical Transmission Path Inspecting Device App 20220236141 - FUKUMOTO; Gouichi ; et al. | 2022-07-28 |
| Measurement System App 20210239569 - MASUDA; Kazuya ; et al. | 2021-08-05 |
| Measurement system and measurement method Grant 10,523,317 - Masuda , et al. Dec | 2019-12-31 |
| Measurement System And Measurement Method App 20190372665 - MASUDA; Kazuya ; et al. | 2019-12-05 |
| Optical Switching Unit And Optical Switching Device App 20170289653 - TSUZAKI; Tetsufumi ; et al. | 2017-10-05 |
| Optical amplifier Grant 9,583,911 - Uehara , et al. February 28, 2 | 2017-02-28 |
| Optical Amplifier App 20160261087 - UEHARA; Fumiya ; et al. | 2016-09-08 |
| Raman amplifier and optical communication system including the same App 20080074733 - Tsuzaki; Tetsufumi ; et al. | 2008-03-27 |
| Raman amplifier and optical communication system including the same Grant 7,307,782 - Tsuzaki , et al. December 11, 2 | 2007-12-11 |
| Analog optical transmission system Grant 7,110,648 - Miyamoto , et al. September 19, 2 | 2006-09-19 |
| Raman amplifier Grant 7,046,428 - Tsuzaki , et al. May 16, 2 | 2006-05-16 |
| Analog optical transmission system App 20060045534 - Miyamoto; Toshiyuki ; et al. | 2006-03-02 |
| Optical fiber component for Raman amplification, Raman amplifier and optical communications system Grant 6,958,857 - Tsuzaki October 25, 2 | 2005-10-25 |
| Optical amplifier and optical amplification method Grant 6,952,309 - Tsuzaki , et al. October 4, 2 | 2005-10-04 |
| Raman amplifier App 20040240039 - Tsuzaki, Tetsufumi ; et al. | 2004-12-02 |
| Optical communication system Grant 6,819,829 - Tsuzaki , et al. November 16, 2 | 2004-11-16 |
| Raman amplifier module and optical transmission system using the same Grant 6,819,477 - Tsuzaki , et al. November 16, 2 | 2004-11-16 |
| Raman amplifier and optical communication system Grant 6,813,065 - Tsuzaki , et al. November 2, 2 | 2004-11-02 |
| Raman amplification pumping module, Raman amplifier, and optical communication system Grant 6,806,999 - Tsuzaki , et al. October 19, 2 | 2004-10-19 |
| Raman amplifier and optical communication system including the same App 20040156095 - Tsuzaki, Tetsufumi ; et al. | 2004-08-12 |
| Raman amplifier Grant 6,775,055 - Tsuzaki , et al. August 10, 2 | 2004-08-10 |
| Optical fiber product and method of fabricating thereof, Raman amplifier and method of fabricating thereof, method of fabricating of optical coupler, and optical transmission line App 20040062495 - Tsuzaki, Tetsufumi ; et al. | 2004-04-01 |
| Optical fiber component for Raman amplification, Raman amplifier and optical communications system App 20040008994 - Tsuzaki, Tetsufumi | 2004-01-15 |
| Optical fiber, optical component, dispersion compensating fiber module, and optical communication system App 20030169986 - Tsuzaki, Tetsufumi | 2003-09-11 |
| Raman amplification pumping module, Raman amplifier, and optical communication system App 20030123138 - Tsuzaki, Tetsufumi ; et al. | 2003-07-03 |
| Raman amplifier and optical communication system including the same App 20030063371 - Tsuzaki, Tetsufumi ; et al. | 2003-04-03 |
| Optical communication system App 20020102051 - Tsuzaki, Tetsufumi ; et al. | 2002-08-01 |
| Raman amplifier App 20020024721 - Tsuzaki, Tetsufumi ; et al. | 2002-02-28 |
| Raman amplifier and optical communication system App 20020024722 - Tsuzaki, Tetsufumi ; et al. | 2002-02-28 |
| Raman amplifier module and optical transmission system using the same App 20020012161 - Tsuzaki, Tetsufumi ; et al. | 2002-01-31 |
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