Inventor

Shin Kamei

Inventor

Atsugi, JP

Overview

24→

Patents

1999–2020

Patent span

Electricity

Primary field (CPC H)

Patents· 24 as inventor

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

G02Bprimary

G02BOptical elements, systems or apparatus33%

H04BTransmission12%

H04JMultiplex communication10%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein5%

H01LSemiconductor devices5%

H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light5%

H04QSelecting5%

H05KPrinted circuits5%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation5%

G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light2%

PatentTitleYear

10,720,543Photodetector2020 10,649,147Optical module2020 10,601,522Optical receiver2020 10,295,744Coherent optical mixer circuit2019 10,277,271Optical module2019 10,243,664Optical modulator driver circuit and optical transmitter2019 10,193,653Polarization multiplexing optical transmission circuit and polarization multiplexing optical transmission and reception circuit2019 10,190,941Silicon optical circuit for flaw detection in an optical circuit element2019 10,165,690Solder joint structure of flexible printed circuit board2018 10,146,099Optical modulator2018 9,817,186'Polarization rotator'2017 8,867,873'Arrayed waveguide grating'2014 8,787,710'Wideband interferometer type polarization light beam combiner and splitter'2014 8,737,779'Optical wavelength multi/demultiplexer'2014 8,483,525'Optical wavelength multiplexing/demultiplexing circuit, optical module using optical wavelength multiplexing/demultiplexing circuit, and communication system'2013 8,467,642'Waveguide type optical device'2013 8,369,666'Optical wavelength multiplexing/ de-multiplexing circuit'2013 8,244,133'Optical waveband demultiplexer, optical waveband multiplexer, and optical waveband selective switch'2012 7,245,793'Optical waveguide circuit'2007 6,925,228'Optical waveguide circuit'2005 6,885,447'Spectrometer and optical spectrum analyzer'2005 6,718,140'Optical wavelength division multiplexing transmission network device'2004 6,229,938'WDM filter'2001 5,885,081'System and method for conversion between linguistically significant symbol sequences with display of support information'1999

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1999–2019Based in Tokyo, JP· patent location history

2001–2020Patents assigned to NIPPON TELEGRAPH & TELEPHONE (22)· patent assignee history

2001–2004Based in Mito, JP· patent location history

2005–2012Based in Musashino, JP· patent location history

2005Based in Zama, JP· patent location history

2012–2014Patents assigned to KAMEI SHIN (7)· patent assignee history

2013–2014Patents assigned to KITOH TSUTOMU (4)· patent assignee history

2013–2014Patents assigned to INOUE YASUYUKI (3)· patent assignee history

2013–2014Patents assigned to HASHIMOTO TOSHIKAZU (2)· patent assignee history

2013–2020Based in Atsugi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NIPPON TELEGRAPH & TELEPHONE	22	2001–2020
KAMEI SHINself	7	2012–2014
KITOH TSUTOMU	4	2013–2014
INOUE YASUYUKI	3	2013–2014
HASHIMOTO TOSHIKAZU	2	2013–2014

Locations

Location	Patents	Span
Atsugi, JP	16	2013–2020
Tokyo, JP	3	1999–2019
Musashino, JP	2	2005–2012
Mito, JP	2	2001–2004
Zama, JP	1	2005