Inventor

Yuji Furushima

Inventor

Tokyo, JP

Overview

13→

Patents

1998–2020

Patent span

Electricity

Primary field (CPC H)

Patents· 13 as inventor

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

H01Sprimary

H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light28%

H10HInorganic light-emitting semiconductor devices having potential barriers13%

B82YSpecific uses or applications of nanostructures10%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1010%

G11BInformation storage based on relative movement between record carrier and transducer8%

G02BOptical elements, systems or apparatus5%

H01LSemiconductor devices5%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein3%

G09GArrangements or circuits for control of indicating devices using static means to present variable information3%

H03KPulse technique3%

PatentTitleYear

10,833,477Drive unit and light-emitting device2020 10,727,144Light emitting apparatus and method of manufacturing light emitting apparatus2020 9,379,523'Group III nitride semiconductor device, p-type contact structure, and method for fabricating group III nitride semiconductor device'2016 8,494,020'Semiconductor light emitting device, optical pickup unit and information recording/reproduction apparatus'2013 8,253,150'Semiconductor light emitting device and method of manufacturing it'2012 8,243,769'Semiconductor light emitting device, optical pickup unit and information recording/reproduction apparatus'2012 6,670,203'Method for manufacturing semiconductor laser having recombination layer stripes in current blocking structure'2003 6,539,039'Optical semiconductor device and method of manufacturing the same'2003 6,477,283'Electroabsorption optical modulator and fabrication method thereof'2002 6,465,269'Semiconductor optical device and method of manufacturing the same'2002 6,337,870'Semiconductor laser having recombination layer stripes in current blocking structure'2002 6,219,366'Semiconductor optical device and method of manufacturing the same'2001 5,815,520'light emitting semiconductor device and its manufacturing method'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2003Patents assigned to NEC CORP (7)· patent assignee history

1998–2003Based in Tokyo, JP· patent location history

2012–2020Patents assigned to SONY CORP (5)· patent assignee history

2012–2013Patents assigned to FURUSHIMA YUJI (3)· patent assignee history

2012–2013Patents assigned to TSUYOSHI FUJIMOTO (3)· patent assignee history

2012–2013Patents assigned to AOSHIMA KENTARO (2)· patent assignee history

2012–2020Based in Miyagi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NEC CORP	7	1998–2003
SONY CORP	5	2012–2020
FURUSHIMA YUJIself	3	2012–2013
TSUYOSHI FUJIMOTO	3	2012–2013
AOSHIMA KENTARO	2	2012–2013

Locations

Location	Patents	Span
Tokyo, JP	7	1998–2003
Miyagi, JP	6	2012–2020