Inventor
KURAMOTO MASARU
JP71 patents
⚠️ This page may combine multiple inventors who share the name “KURAMOTO MASARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
25 patentsUS9893492B2Feb 13, 2018
Light emitting element and method of manufacturing the same
SONY CORP4 citations84
US7606278B2Oct 20, 2009
Semiconductor laser, method of manufacturing semiconductor device, optical pickup, and optical disk apparatus
SONY CORP13 citations84
US9595810B2Mar 14, 2017
Light emitting element having multiple surface areas of a semiconductor layer and method of producing same
SONY CORP5 citations73
US9407067B2Aug 2, 2016
Light emitting element and method of manufacturing the same
SONY CORP3 citations73
US9184560B2Nov 10, 2015
Semiconductor-laser-device assembly
SONY CORP4 citations73
US10170667B2Jan 1, 2019
Semiconductor optical device
SONY CORP2 citations71
US9917228B2Mar 13, 2018
Semiconductor optical device
SONY CORP2 citations71
US7680172B2Mar 16, 2010
Laser diode device
SONY CORP2 citations63
US11081862B2Aug 3, 2021
Light emitting element and method of manufacturing the same
SONY CORP0 citations62
US9252566B2Feb 2, 2016
Method of manufacturing light emitting element
SONY CORP2 citations62
US7943407B2May 17, 2011
Method for manufacturing semiconductor laser
SONY CORP2 citations58
US10541513B2Jan 21, 2020
Light emitting element and method of manufacturing the same
SONY CORP0 citations52
US9780526B2Oct 3, 2017
Semiconductor-laser-device assembly
SONY CORP0 citations52
US9537288B2Jan 3, 2017
Semiconductor laser device assembly
SONY CORP0 citations52
US9515455B2Dec 6, 2016
Method of manufacturing light emitting element
SONY CORP0 citations52
USRE45973EApr 12, 2016
Semiconductor optical amplifier
SONY CORP0 citations52
US9048619B2Jun 2, 2015
Laser diode assembly
SONY CORP0 citations52
US7867798B2Jan 11, 2011
Semiconductor laser, method of manufacturing semiconductor laser, optical pickup and optical disk system
SONY CORP0 citations52
US7653105B2Jan 26, 2010
Semiconductor laser, method of manufacturing semiconductor laser, optical pickup and optical disk system
SONY CORP0 citations52
US10700497B2Jun 30, 2020
Optical semiconductor device
SONY CORP0 citations51
US10637209B2Apr 28, 2020
Light emitting element
SONY CORP0 citations51
US10256609B2Apr 9, 2019
Surface light-emitting laser
SONY CORP0 citations51
US10199799B2Feb 5, 2019
Light emitting element
SONY CORP0 citations51
US10109984B2Oct 23, 2018
Optical semiconductor device
SONY CORP0 citations51
US9882352B2Jan 30, 2018
Light emitting element
SONY CORP0 citations51
NEC CORP
8 patentsUS6809351B2Oct 26, 2004
Group III-V compound semiconductor crystal structure and method of epitaxial growth of the same as well as semiconductor device including the same
NEC CORP129 citations97
US6642546B2Nov 4, 2003
Nitride based semiconductor device and method of forming the same
NEC CORP19 citations93
US6977952B2Dec 20, 2005
Nitride based semiconductor light-emitting device
NEC CORP20 citations92
US6855959B2Feb 15, 2005
Nitride based semiconductor photo-luminescent device
NEC CORP32 citations92
US7282745B2Oct 16, 2007
Nitride based semiconductor light-emitting device
NEC CORP10 citations84
US6635905B2Oct 21, 2003
Gallium nitride based compound semiconductor light-emitting device
NEC CORP8 citations74
US6078062AJun 20, 2000
II-VI compound semiconductor based light emitting device having recombination regions spatially arrayed in a planar direction of the active layer to prevent crack propagation
NEC CORP15 citations74
US7183585B2Feb 27, 2007
Semiconductor device and a method for the manufacture thereof
NEC CORP4 citations63
STANLEY ELECTRIC CO LTD
6 patentsUS10892601B2Jan 12, 2021
Vertical cavity light-emitting element
STANLEY ELECTRIC CO LTD3 citations73
US10795250B2Oct 6, 2020
Lighting apparatus and lighting tool for vehicle
STANLEY ELECTRIC CO LTD2 citations73
US12308614B2May 20, 2025
Vertical cavity surface emitting device
STANLEY ELECTRIC CO LTD1 citations64
US12525769B2Jan 13, 2026
Vertical cavity light-emitting element
STANLEY ELECTRIC CO LTD0 citations52
US12266906B2Apr 1, 2025
Vertical cavity surface emitting device
STANLEY ELECTRIC CO LTD0 citations51
US12218486B2Feb 4, 2025
Vertical cavity surface emitting device
STANLEY ELECTRIC CO LTD0 citations51
WATANABE HIDEKI
4 patentsUS8831055B2Sep 9, 2014
Self-oscillating semiconductor laser device and driving method thereof
WATANABE HIDEKI4 citations73
US8982920B2Mar 17, 2015
Submount, submount assembly, and submount assembling method
WATANABE HIDEKI6 citations72
US8575626B2Nov 5, 2013
Bi-section semiconductor laser device, method for manufacturing the same, and method for driving the same
WATANABE HIDEKI1 citations52
US8329483B2Dec 11, 2012
Bi-section semiconductor laser device, method for manufacturing the same, and method for driving the same
WATANABE HIDEKI1 citations52
OKI TOMOYUKI
2 patentsKURAMOTO MASARU
1 patentOOTA MAKOTO
1 patentKONO SHUNSUKE
1 patentSAWAHATA JUNJI
1 patentFUJITA GORO
1 patentShowing the top 50 of 71 patents by PatentIndex Score.