NIPPON TELEPHONE AND TELEGRAPH CORPORATION

Patent Applications and Registrations

Patent applications and USPTO patent grants for NIPPON TELEPHONE AND TELEGRAPH CORPORATION.The latest application filed is for "semiconductor photo-detector, semiconductor photo-detection device, and production method thereof".

Company Profile

0.15.1

NIPPON TELEPHONE AND TELEGRAPH CORPORATION - Tokyo JP
Nippon Telephone & Telegraph Corporation - JP JP
Nippon Telephone & Telegraph Corporation -
Nippon Telephone & Telegraph Corp. - Tokyo JP
Nippon Telephone & Telegraph Corporation - N/A

*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
Optical signal detection circuit and optical receiver Grant 9,160,458 - Koizumi , et al. October 13, 2	2015-10-13
Transimpedance amplifier Grant 7,868,701 - Nakamura , et al. January 11, 2	2011-01-11
Biometric image collation apparatus and collation method therefor Grant 7,673,145 - Hatano , et al. March 2, 2	2010-03-02
Matrix switch Grant 7,557,674 - Kamitsuna July 7, 2	2009-07-07
Optical memory reproduction apparatus and incidence positioning method for read light thereof Grant 7,505,644 - Kurokawa , et al. March 17, 2	2009-03-17
Spread-spectrum demodulator Grant 7,430,233 - Suzuki , et al. September 30, 2	2008-09-30
Sales apparatus and method of transmitting and receiving merchandise information by electric field induced in human body Grant 7,412,229 - Ochiai , et al. August 12, 2	2008-08-12
Semiconductor photo-detector, semiconductor photo-detection device, and production method thereof App 20070259472 - Fukano; Hideki	2007-11-08
Semiconductor photo-detector, semiconductor photo-detection device, and production methods thereof Grant 7,256,062 - Fukano August 14, 2	2007-08-14
Brightness-variation compensation method and coding/decoding apparatus for moving pictures Grant 6,934,331 - Kamikura , et al. August 23, 2	2005-08-23
Method and equipment for extracting image features from image sequence Grant 6,263,089 - Otsuka , et al. July 17, 2	2001-07-17
Ferrule for optical connector and method for manufacturing optical connector using the ferrule Grant 6,045,271 - Shimoji , et al. April 4, 2	2000-04-04
Liquid crystal microprism array, free-space optical interconnector, and optical switch Grant 5,648,859 - Hirabayashi , et al. July 15, 1	1997-07-15
High-frequency power divider-combiner Grant 5,363,072 - Sakamoto , et al. November 8, 1	1994-11-08
Selective chemical vapor deposition of a metallic film on the silicon surface Grant 5,104,694 - Saito , et al. April 14, 1	1992-04-14
Telephone registration and cancellation control in a wide area cordless telephone system Grant 4,833,702 - Shitara , et al. May 23, 1	1989-05-23

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