Nippon Telegraph

Patent Applications and Registrations

Patent applications and USPTO patent grants for Nippon Telegraph.The latest application filed is for "polarization scrambler and optical network using the same".

Company Profile

0.5.5

Nippon Telegraph - Tokyo JP
Nippon Telegraph - Telephone Corporation
Nippon Telegraph - JP JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Acoustic signal transmission method and apparatus with insertion signal Grant 7,657,435 - Iwaki , et al. February 2, 2	2010-02-02
Polarization scrambler and optical network using the same App 20050213991 - Fujiwara, Masamichi ; et al.	2005-09-29
Input device of 3-D translation and rotation and its method and recording medium App 20040113889 - Kato, Koichi ; et al.	2004-06-17
Semiconductor photo-detector, semiconductor photodetection device, and production methods thereof App 20040094816 - Fukano, Hideki	2004-05-20
Light-controlled light modulator App 20020101293 - Shibata, Yasuo ; et al.	2002-08-01
Method and apparatus for displaying computer generated holograms App 20020008887 - Horikoshi, Tsutomu ; et al.	2002-01-24
Closure for cable connection Grant 6,021,246 - Koshiyama , et al. February 1, 2	2000-02-01
Inverted F antenna with non-contact feeding Grant 5,434,579 - Kagoshima , et al. July 18, 1	1995-07-18
Method and apparatus for conically machining optical fiber connectors Grant 4,999,955 - Saito , et al. March 19, 1	1991-03-19
Image data transmission apparatus Grant 4,962,526 - Kotani , et al. October 9, 1	1990-10-09

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