Katsuyoshi Kawaguchi

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Raman amplifier and optical communication system
- Patent number 7,768,698
- Issue date Aug 3, 2010
- Independent Administrative Institution, Japan Agency for Marine-Earth Science...
- Toshiyuki Tokura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Observation apparatus and observation system
- Patent number 7,539,413
- Issue date May 26, 2009
- Mitsubishi Denki Kabushiki Kaisha
- Hiroaki Munehira
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Submarine observation apparatus and submarine observation system
- Patent number 7,437,070
- Issue date Oct 14, 2008
- Mitsubishi Denki Kabushiki Kaisha
- Tasuku Fujieda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Submarine power feeding system having submarine feeding cables and...
- Patent number 7,276,811
- Issue date Oct 2, 2007
- NEC Corporation
- Jun Muramatsu
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Submarine power feeding branching device for submarine power feedin...
- Patent number 7,166,933
- Issue date Jan 23, 2007
- NEC Corporation
- Jun Muramatsu
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Submarine cable power feeding system
- Patent number 7,102,257
- Issue date Sep 5, 2006
- NEC Corporation
- Jun Muramatsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Raman Amplifier And Optical Communication System
- Publication number 20080013161
- Publication date Jan 17, 2008
- INDEPENDENT ADMINISTRATIVE INSTITUTION, JAPAN AGENCY FOR MARINE-EARTH SCIENCE...
- Toshiyuki Tokura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Submarine power feeding system having submarine feeding cables and...
- Publication number 20070069588
- Publication date Mar 29, 2007
- NEC Corporation
- Jun Muramatsu
- B60 - VEHICLES IN GENERAL
Information Patent Application
Observation apparatus and observation system
- Publication number 20050259264
- Publication date Nov 24, 2005
- Mitsubishi Denki Kabushiki Kaisha
- Hiroaki Munehira
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Submarine observation apparatus and submarine observation system
- Publication number 20050259998
- Publication date Nov 24, 2005
- Mitsubishi Denki Kabushiki Kaisha
- Tasuku Fujieda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Submarine power feeding branching device for submarine power feedin...
- Publication number 20040130215
- Publication date Jul 8, 2004
- NEC CORPORATION and JAPAN MARINE SCIENCE AND TECHNOLOGY CENTER
- Jun Muramatsu
- B60 - VEHICLES IN GENERAL
Information Patent Application
Submarine cable power feeding system
- Publication number 20030230936
- Publication date Dec 18, 2003
- NEC Corporation
- Jun Muramatsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Katsuyoshi Kawaguchi

Person

Patents Grantslast 30 patents

Raman amplifier and optical communication system

Observation apparatus and observation system

Submarine observation apparatus and submarine observation system

Submarine power feeding system having submarine feeding cables and...

Submarine power feeding branching device for submarine power feedin...

Submarine cable power feeding system

Patents Applicationslast 30 patents

Raman Amplifier And Optical Communication System

Submarine power feeding system having submarine feeding cables and...

Observation apparatus and observation system

Submarine observation apparatus and submarine observation system

Submarine power feeding branching device for submarine power feedin...

Submarine cable power feeding system