Inventor
HIRAMATSU RYOSUKE
JP37 patents
⚠️ This page may combine multiple inventors who share the name “HIRAMATSU RYOSUKE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOSHIBA KK
18 patentsUS7468147B2Dec 23, 2008
Fluorescent substance and light-emitting device using the same
TOSHIBA KK59 citations97
US5697504ADec 16, 1997
Video coding system
TOSHIBA KK92 citations96
US7414272B2Aug 19, 2008
Fluorescent substance containing nitrogen, method for manufacturing the same, and light-emitting device
TOSHIBA KK17 citations82
US9954146B2Apr 24, 2018
Phosphor, manufacturing method thereof, and light-emitting device using the phosphor
TOSHIBA KK2 citations62
US7572391B2Aug 11, 2009
Fluorescent substance and light-emitting device using the same
TOSHIBA KK2 citations62
US7498736B2Mar 3, 2009
Luminescent material
TOSHIBA KK4 citations62
US7635438B2Dec 22, 2009
Luminescent material
TOSHIBA KK6 citations61
US7638934B2Dec 29, 2009
Fluorescent substance and light-emitting device
TOSHIBA KK4 citations60
US12509358B2Dec 30, 2025
Tungsten oxide powder and method for producing tungsten oxide powder
TOSHIBA KK0 citations58
US10711186B2Jul 14, 2020
Phosphor, producing method thereof, and light-emitting device employing the phosphor
TOSHIBA KK0 citations52
US10032967B2Jul 24, 2018
Phosphor and light-emitting device
TOSHIBA KK0 citations52
US10020427B2Jul 10, 2018
Phosphor, manufacturing method therefor, and light-emitting device using the phosphor
TOSHIBA KK1 citations52
US9520540B2Dec 13, 2016
Light-emitting device with phosphor excited by blue excitation light
TOSHIBA KK0 citations52
US8043528B2Oct 25, 2011
Luminescent material
TOSHIBA KK0 citations52
US7875206B2Jan 25, 2011
Luminescent material
TOSHIBA KK0 citations52
US7799245B2Sep 21, 2010
Fluorescent substance and light-emitting device using the same
TOSHIBA KK0 citations51
US7601277B2Oct 13, 2009
Fluorescent substance and light-emitting device using the same
TOSHIBA KK0 citations51
US10519368B2Dec 31, 2019
Phosphor, manufacturing method thereof, and light-emitting device using the phosphor
TOSHIBA KK0 citations42
FUKUDA YUMI
5 patentsUS8491817B2Jul 23, 2013
Luminescent material and light-emitting device
FUKUDA YUMI1 citations61
US8482192B2Jul 9, 2013
Luminescent material and light-emitting device
FUKUDA YUMI2 citations61
US8475680B2Jul 2, 2013
Luminescent material and light-emitting device
FUKUDA YUMI1 citations61
US8450923B2May 28, 2013
Luminescent material and light-emitting device
FUKUDA YUMI2 citations61
US8926863B2Jan 6, 2015
Process for producing fluorescent substance and fluorescent substance produced thereby
FUKUDA YUMI0 citations41
HIRAMATSU RYOSUKE
4 patentsUS8907558B2Dec 9, 2014
White light emitting device with red and green-yellow phosphor
HIRAMATSU RYOSUKE8 citations82
US8062550B2Nov 22, 2011
Luminescent material
HIRAMATSU RYOSUKE2 citations61
US8212470B2Jul 3, 2012
Luminescent material
HIRAMATSU RYOSUKE0 citations51
US8471458B2Jun 25, 2013
Light emitting device
HIRAMATSU RYOSUKE0 citations40
TOSHIBA MATERIALS CO LTD
3 patentsUS7201858B2Apr 10, 2007
Fluorescent substance, method of manufacturing fluorescent substance, and light emitting device using the fluorescent substance
TOSHIBA MATERIALS CO LTD7 citations72
US11211529B2Dec 28, 2021
Semiconductor light-emitting element and method for manufacturing same
TOSHIBA MATERIALS CO LTD0 citations50
US11211526B2Dec 28, 2021
Semiconductor light-emitting element
TOSHIBA MATERIALS CO LTD0 citations50