Inventor

Keiichi Edamatsu

Inventor

Natori, JP

Overview

6→

Patents

2009–2013

Patent span

Physics

Primary field (CPC G)

Patents· 6 as inventor

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

G02Fprimary

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein33%

B82YSpecific uses or applications of nanostructures20%

H04BTransmission13%

H04LTransmission of digital information, e.g. telegraphic communication13%

G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light7%

H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light7%

H04JMultiplex communication7%

PatentTitleYear

8,488,231'Generator of polarization entangled photon pairs and method of generating the same'2013 8,173,982'Non-degenerate polarization-entangled photon pair generation device and non-degenerate polarization-entangled photon pair generation method'2012 7,706,425'Littrow external oscillator semiconductor laser optical axis deviation correction method and device'2010 7,683,361'Method for generating quantum-entangled photon pairs'2010 7,652,770'Optical nonliner evaluation device and optical switching element'2010 7,570,419'Quantum entanglement photon-pair producing device and quantum entanglement photon pair producing method'2009

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2009–2013Patents assigned to JAPAN SCIENCE & TECH AGENCY (6)· patent assignee history

2009–2012Based in Natori, JP· patent location history

2010Patents assigned to UNIV TOHOKU (1)· patent assignee history

2012–2013Patents assigned to EDAMATSU KEIICHI (2)· patent assignee history

2012–2013Patents assigned to SHIMIZU RYOSUKE (2)· patent assignee history

2012Patents assigned to NAGANO SHIGEHIRO (1)· patent assignee history

2013Based in Miyagi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
JAPAN SCIENCE & TECH AGENCY	6	2009–2013
EDAMATSU KEIICHIself	2	2012–2013
SHIMIZU RYOSUKE	2	2012–2013
NAGANO SHIGEHIRO	1	2012
UNIV TOHOKU	1	2010

Locations

Location	Patents	Span
Natori, JP	5	2009–2012
Miyagi, JP	1	2013