Kawaguchi; Katsuyoshi

Patent Applications and Registrations

Patent applications and USPTO patent grants for Kawaguchi; Katsuyoshi.The latest application filed is for "raman amplifier and optical communication system".

Company Profile

0.6.6

Kawaguchi; Katsuyoshi - Tokyo JP
Kawaguchi; Katsuyoshi - Kanagawa JP
Kawaguchi; Katsuyoshi - Yokosuka JP
Kawaguchi; Katsuyoshi - Yokosuka-city JP
Kawaguchi, Katsuyoshi - Yolosuka-shi 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
Raman amplifier and optical communication system Grant 7,768,698 - Tokura , et al. August 3, 2	2010-08-03
Observation apparatus and observation system Grant 7,539,413 - Munehira , et al. May 26, 2	2009-05-26
Submarine observation apparatus and submarine observation system Grant 7,437,070 - Fujieda , et al. October 14, 2	2008-10-14
Raman Amplifier And Optical Communication System App 20080013161 - Tokura; Toshiyuki ; et al.	2008-01-17
Submarine power feeding system having submarine feeding cables and power feeding branching devices Grant 7,276,811 - Muramatsu , et al. October 2, 2	2007-10-02
Submarine power feeding system having submarine feeding cables and power feeding branching devices App 20070069588 - Muramatsu; Jun ; et al.	2007-03-29
Submarine power feeding branching device for submarine power feeding system having submarine feeding cables arranged in mesh pattern Grant 7,166,933 - Muramatsu , et al. January 23, 2	2007-01-23
Submarine cable power feeding system Grant 7,102,257 - Muramatsu , et al. September 5, 2	2006-09-05
Observation apparatus and observation system App 20050259264 - Munehira, Hiroaki ; et al.	2005-11-24
Submarine observation apparatus and submarine observation system App 20050259998 - Fujieda, Tasuku ; et al.	2005-11-24
Submarine power feeding branching device for submarine power feeding system having submarine feeding cables arranged in mesh pattern App 20040130215 - Muramatsu, Jun ; et al.	2004-07-08
Submarine cable power feeding system App 20030230936 - Muramatsu, Jun ; et al.	2003-12-18

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