Inventor
IWANAGA HIROKI
JP35 patents
⚠️ This page may combine multiple inventors who share the name “IWANAGA HIROKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOSHIBA KK
29 patentsUS6181393B1Jan 30, 2001
Liquid crystal display device and method of manufacturing the same
TOSHIBA KK119 citations97
US6067135AMay 23, 2000
Liquid crystal display device and method of manufacturing the same
TOSHIBA KK54 citations96
US5739946AApr 14, 1998
Display device
TOSHIBA KK64 citations96
US7902741B2Mar 8, 2011
Fluorescent complex and lighting system using the same
TOSHIBA KK44 citations94
US7250117B2Jul 31, 2007
Light emitting device formed using rare earth complex and luminescent medium
TOSHIBA KK19 citations92
US6650392B2Nov 18, 2003
Cell structure of liquid crystal device
TOSHIBA KK45 citations92
US6033742AMar 7, 2000
Liquid crystal display device
TOSHIBA KK20 citations92
US5995188ANov 30, 1999
Liquid crystal display device using stacked layers
TOSHIBA KK21 citations92
US6650384B2Nov 18, 2003
Liquid crystal display and display method
TOSHIBA KK28 citations91
US6798470B2Sep 28, 2004
Electrophoresis display
TOSHIBA KK13 citations83
US6057906AMay 2, 2000
Liquid crystal display element
TOSHIBA KK9 citations74
US5958291ASep 28, 1999
Liquid crystal display element
TOSHIBA KK11 citations74
US10629952B2Apr 21, 2020
Nonaqueous electrolyte battery, battery pack, and vehicle
TOSHIBA KK3 citations73
US10444214B2Oct 15, 2019
Fluorescent compound, fluorescent compound mixture, freshness marker, freshness label, and sensing system
TOSHIBA KK2 citations73
US7960909B2Jun 14, 2011
Light-emitting device, method for producing the same and fluorescent device
TOSHIBA KK6 citations63
US7575253B2Aug 18, 2009
Fluorescent image-printed article and fluorescent ink
TOSHIBA KK6 citations63
US7510784B2Mar 31, 2009
Light emitting device formed using rare earth complex and luminescent medium
TOSHIBA KK3 citations63
US7186468B2Mar 6, 2007
Organic electro-luminescent display device and method for manufacturing the same
TOSHIBA KK4 citations63
US7086599B2Aug 8, 2006
Information recording medium, reproduction method, and discrimination method
TOSHIBA KK5 citations63
US6656542B2Dec 2, 2003
Guest-host liquid crystal composition and guest-host liquid crystal display device
TOSHIBA KK2 citations63
US12486453B2Dec 2, 2025
Rare earth complex-containing composition and fluorescent penetrant inspection method using same
TOSHIBA KK0 citations62
US12122950B2Oct 22, 2024
Fluorescent rare earth complex and security medium using the same
TOSHIBA KK0 citations62
US11702591B2Jul 18, 2023
Fluorescent rare earth complex and security medium using the same
TOSHIBA KK0 citations62
US6811897B2Nov 2, 2004
Ink for forming a hole injection layer of organic EL display devices and manufacturing method thereof, organic EL display devices, and manufacturing method of the same
TOSHIBA KK3 citations62
US12183858B2Dec 31, 2024
Light wavelength conversion medium and composition for forming light wavelength conversion medium
TOSHIBA KK0 citations59
US10697950B2Jun 30, 2020
Fluorescent compound, fluorescent compound mixture, freshness marker, freshness label, and sensing system
TOSHIBA KK0 citations52
US8969718B2Mar 3, 2015
Organic compound and solar cell using the same
TOSHIBA KK1 citations52
US6444376B1Sep 3, 2002
Coloring material, coloring material for color filter, display device and liquid crystal display device
TOSHIBA KK0 citations52
US7611780B2Nov 3, 2009
Lighting device, image pickup apparatus and portable terminal unit
TOSHIBA KK0 citations41
IWANAGA HIROKI
4 patentsUS9296848B2Mar 29, 2016
Polymer material, solar cell using the same, and solar photovoltaic generation system
IWANAGA HIROKI0 citations50
US8173271B2May 8, 2012
Fluorescent rare earth complex, and light-emitting element, security medium and lighting device using the same
IWANAGA HIROKI1 citations50
US8107807B2Jan 31, 2012
Lighting device, image pickup apparatus and portable terminal unit
IWANAGA HIROKI1 citations50
US9353310B2May 31, 2016
Luminous material using fluorescence amorphous solid
IWANAGA HIROKI0 citations40