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Inventor

Shigehiro Takashima

Inventor
Tokorozawa, JP

Overview

5→
Patents
2007–2015
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.

H04Bprimary
H04BTransmission71%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein29%
PatentTitleYear
9,083,470'Optical receiver'20158,909,067'Optical output module, optical transceiver, and optical transmission system'20148,098,998'Optical transmitter'20127,391,974'Wavelength division multiplexing optical transmission equipment and method of amplifying optical wavelength division multiplexed signals'20087,194,210'Wavelength division multiplexing optical transmission equipment and method of amplifying optical wavelength division multiplexed signals'2007

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2007–2008Patents assigned to HITACHI LTD (2)· patent assignee history
2007–2008Based in Tokyo, JP· patent location history
2012–2015Patents assigned to TAKASHIMA SHIGEHIRO (3)· patent assignee history
2012–2015Based in Tokorozawa, JP· patent location history
2014–2015Patents assigned to OCLARO JAPAN INC (2)· patent assignee history
2014Based in Saitama, JP· patent location history
2015Patents assigned to AKASHI MITSUO (1)· patent assignee history
2015Patents assigned to ERA YOSHIKAZU (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TAKASHIMA SHIGEHIROself32012–2015
HITACHI LTD22007–2008
OCLARO JAPAN INC22014–2015
AKASHI MITSUO12015
ERA YOSHIKAZU12015
Locations
LocationPatentsSpan
Tokorozawa, JP22012–2015
Tokyo, JP22007–2008
Saitama, JP12014