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Inventor

Akihisa Kawaguchi

Inventor
Kanagawa, JP

Overview

5→
Patents
1987–2014
Patent span
Electricity
Primary field (CPC H)

Patents· 5 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H04Jprimary
H04JMultiplex communication50%
H04BTransmission33%
E04BGeneral building constructions17%
PatentTitleYear
8,693,874'Transmission system and method of correcting tilt of the transmission system'20148,326,147'Transmission apparatus, transmission controlling method, and optical supervisory channel (OSC) processing apparatus'20127,206,512'Method of controlling optical wavelength division multiplexing transmission apparatus'20076,839,518'Level adjustment method and wavelength division multiplexing device and system'20054,706,419'Openable dome-shaped roof structure'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987Based in Iruma, JP· patent location history
2005–2014Patents assigned to FUJITSU LTD (3)· patent assignee history
2005–2007Based in Kawasaki, JP· patent location history
2012–2014Patents assigned to FUJITSU TELECOM NETWORKS LTD (2)· patent assignee history
2012–2014Patents assigned to KAWAGUCHI AKIHISA (2)· patent assignee history
2012–2014Patents assigned to SUZUKI TOMOYUKI (2)· patent assignee history
2012–2014Patents assigned to TANONAKA KOJI (2)· patent assignee history
2012–2014Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FUJITSU LTD32005–2014
FUJITSU TELECOM NETWORKS LTD22012–2014
KAWAGUCHI AKIHISAself22012–2014
SUZUKI TOMOYUKI22012–2014
TANONAKA KOJI22012–2014
Locations
LocationPatentsSpan
Kanagawa, JP22012–2014
Kawasaki, JP22005–2007
Iruma, JP11987