Akira Naka

Person

Yokosuka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Digital signal processing device
- Patent number 9,749,061
- Issue date Aug 29, 2017
- Nippon Telegraph and Telephone Corporation
- Fukutaro Hamaoka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission system
- Patent number 9,692,543
- Issue date Jun 27, 2017
- Nippon Telegraph and Telephone Corporation
- Toshiya Matsuda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Automatic power restoring method and optical communication system
- Patent number 7,792,430
- Issue date Sep 7, 2010
- Fujitsu Limited
- Hiroyuki Deguchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Automatic power restoring method and optical communication system
- Patent number 7,664,392
- Issue date Feb 16, 2010
- Fujitsu Limited
- Hiroyuki Deguchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Automatic power restoring method and optical communication system
- Patent number 7,437,069
- Issue date Oct 14, 2008
- Fujitsu Limited
- Hiroyuki Deguchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Measurement method by OTDR and terminal station apparatus
- Patent number 7,420,666
- Issue date Sep 2, 2008
- Fujitsu Limited
- Takayuki Maehara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Measurement method by OTDR and terminal station apparatus
- Patent number 7,215,415
- Issue date May 8, 2007
- Fujitsu Limited
- Takayuki Maehara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL TRANSMISSION SYSTEM
- Publication number 20160241352
- Publication date Aug 18, 2016
- Nippon Telegraph and Telephone Corporation
- Toshiya MATSUDA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DIGITAL SIGNAL PROCESSING DEVICE
- Publication number 20150236796
- Publication date Aug 20, 2015
- Nippon Telegraph and Telephone Corporation
- Fukutaro Hamaoka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Automatic power restoring method and optical communication system
- Publication number 20090175616
- Publication date Jul 9, 2009
- FUJITSU LIMITED
- Hiroyuki Deguchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Automatic power restoring method and optical communication system
- Publication number 20080317461
- Publication date Dec 25, 2008
- FUJITSU LIMITED
- Hiroyuki Deguchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Measurement method by OTDR and terminal station apparatus
- Publication number 20070183785
- Publication date Aug 9, 2007
- FUJITSU LIMITED
- Takayuki Maehara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Measurement method by OTDR and terminal station apparatus
- Publication number 20050110980
- Publication date May 26, 2005
- FUJITSU LIMITED
- Takayuki Maehara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Automatic power restoring method and optical communication system
- Publication number 20040213567
- Publication date Oct 28, 2004
- Fujitsu Limited & Nippon Telegraph
- Hiroyuki Deguchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Person

Patents Grantslast 30 patents

Digital signal processing device

Optical transmission system

Automatic power restoring method and optical communication system

Automatic power restoring method and optical communication system

Automatic power restoring method and optical communication system

Measurement method by OTDR and terminal station apparatus

Measurement method by OTDR and terminal station apparatus

Patents Applicationslast 30 patents

OPTICAL TRANSMISSION SYSTEM

DIGITAL SIGNAL PROCESSING DEVICE

Automatic power restoring method and optical communication system

Automatic power restoring method and optical communication system

Measurement method by OTDR and terminal station apparatus

Measurement method by OTDR and terminal station apparatus

Automatic power restoring method and optical communication system