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Inventor

Katsuhiro Shimizu

Inventor
Tokyo, JP

Overview

45→
Patents
1994–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 45 as inventor

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

H04Bprimary
H04BTransmission21%
G09GArrangements or circuits for control of indicating devices using static means to present variable information10%
H04JMultiplex communication10%
H04LTransmission of digital information, e.g. telegraphic communication8%
H04NPictorial communication, e.g. television8%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein7%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light7%
H10HInorganic light-emitting semiconductor devices having potential barriers4%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h104%
H01LSemiconductor devices3%
PatentTitleYear
10,930,825Two step phosphor deposition to make a matrix array202110,910,433Pixelated LED array with optical elements202110,903,266Ultra-smooth sidewall pixelated array LEDs202110,886,703LED DBR structure with reduced photodegradation202110,876,611Lock-up device and torque converter20209,699,403'Communication system, transmission apparatus, transmission method, reception apparatus and reception method'20179,350,931'Communication system, transmission apparatus, transmission method, reception apparatus and reception method'20169,038,123'Communication system, transmission apparatus, transmission method, reception apparatus and reception method'20159,032,471'Communication system, transmission apparatus, transmission method, reception apparatus and reception method'20158,997,166'Communication system, transmission apparatus, transmission method, reception apparatus and reception method'20158,789,127'Communication system, transmission apparatus, transmission method, reception apparatus and reception method'20148,752,117'Communication system, transmission apparatus, transmission method, reception apparatus and reception method'20148,392,958'Communication system, transmission apparatus, transmission method, reception apparatus and reception method'20138,320,771'Optical transmission system and repeater'20128,208,812'Optical relay device and optical relay transmission system'20128,199,171'Display device, image signal processing method, and program'20128,059,971'Optical reception device'20117,903,982'Optical receiver'20117,895,498'Apparatuses and method for error correction coding and error correction decoding'20117,801,450'Optical transmitter and optical communication system'20107,768,698'Raman amplifier and optical communication system'20107,501,914'Bias circuit'20097,239,673'Optical reception apparatus'20077,236,703'Optical wavelength division multiplexing device'20077,170,673'Optical amplifying repeater apparatus and optical amplifying/repeating transmission system'20077,092,643'Optical transmission apparatus and bias voltage control method for the optical modulator'20067,057,802'Optical amplifier device'20067,058,313'Multi-value modulation apparatus'20067,034,993'Optical amplifier apparatus'20067,016,614'Optical wavelength division multiplexing transmission suppressing four-wave mixing and SPM-GVD effects'20066,873,456'Optical amplifying repeater apparatus and optical amplifying/repeating transmission system'20056,836,622'Optical transmitter, and method of controlling bias voltage to the optical transmitter'20046,832,048'Dispersion compensation apparatus and a dispersion compensation system'20046,775,482'Light receiver'20046,674,481'Display apparatus, marker signal making process, marker signal detector circuit, and control signal generator circuit'20046,657,778'Optical amplification repeater and optical amplification repeating and transmitting system'20036,456,277'Data conversion method used between different types of keyboards'20026,445,478'Optical pulse position detecting circuit and an optical pulse generating apparatus and their methods'20026,362,816'Display control method and display control apparatus'20026,292,216'Control signal generating circuit'20016,236,488'Optical pulse position detecting circuit and an optical pulse generating apparatus and their methods'20016,028,695'Optical modulating apparatus'20005,506,724'Gain controllable optical amplifier and applications thereof'19965,455,704'Optical-fiber light amplifier'19955,367,587'Optical amplifier'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994–2012Patents assigned to MITSUBISHI ELECTRIC CORP (26)· patent assignee history
1994–1995Based in Kamakura, JP· patent location history
2000–2002Patents assigned to KOKUSAI DENSHIN DENWA CO LTD (3)· patent assignee history
2000–2017Based in Tokyo, JP· patent location history
2001–2017Patents assigned to SONY CORP (10)· patent assignee history
2011–2013Patents assigned to SHIMIZU KATSUHIRO (5)· patent assignee history
2020Based in Shizuoka, JP· patent location history
2021Patents assigned to LUMILEDS LLC (4)· patent assignee history
2021Based in San Jose, CA, US· patent location history
2021Based in Sunnyvale, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUBISHI ELECTRIC CORP261994–2012
SONY CORP102001–2017
SHIMIZU KATSUHIROself52011–2013
LUMILEDS LLC42021
KOKUSAI DENSHIN DENWA CO LTD32000–2002
Locations
LocationPatentsSpan
Tokyo, JP352000–2017
San Jose, California, US22021
Sunnyvale, California, US22021
Kamakura, JP21994–1995
Shizuoka, JP12020