Inventor

Hiroki Iwanaga

Inventor

Yokohama, JP

Overview

31→

Patents

1998–2020

Patent span

Electricity

Primary field (CPC H)

Patents· 31 as inventor

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

C09Kprimary

C09KMaterials for miscellaneous applications, not provided for elsewhere15%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein11%

H10KOrganic electric solid-state devices9%

H05BElectric heating8%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments6%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution5%

Y10TTechnical subjects covered by former us classification4%

H01LSemiconductor devices3%

H10HInorganic light-emitting semiconductor devices having potential barriers3%

PatentTitleYear

10,697,950Fluorescent compound, fluorescent compound mixture, freshness marker, freshness label, and sensing system2020 10,629,952Nonaqueous electrolyte battery, battery pack, and vehicle2020 10,444,214Fluorescent compound, fluorescent compound mixture, freshness marker, freshness label, and sensing system2019 9,353,310'Luminous material using fluorescence amorphous solid'2016 9,296,848'Polymer material, solar cell using the same, and solar photovoltaic generation system'2016 8,969,718'Organic compound and solar cell using the same'2015 8,907,207'Solar cell module'2014 8,173,271'Fluorescent rare earth complex, and light-emitting element, security medium and lighting device using the same'2012 8,107,807'Lighting device, image pickup apparatus and portable terminal unit'2012 8,080,173'Fluorescent substance containing rare earth metal, luminous composition comprising the same, process for manufacturing thereof, and light-emitting element comprising the fluorescent substance'2011 7,960,909'Light-emitting device, method for producing the same and fluorescent device'2011 7,902,741'Fluorescent complex and lighting system using the same'2011 7,611,780'Lighting device, image pickup apparatus and portable terminal unit'2009 7,575,253'Fluorescent image-printed article and fluorescent ink'2009 7,510,784'Light emitting device formed using rare earth complex and luminescent medium'2009 7,250,117'Light emitting device formed using rare earth complex and luminescent medium'2007 7,186,468'Organic electro-luminescent display device and method for manufacturing the same'2007 7,086,599'Information recording medium, reproduction method, and discrimination method'2006 6,811,897'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'2004 6,798,470'Electrophoresis display'2004 6,656,542'Guest-host liquid crystal composition and guest-host liquid crystal display device'2003 6,650,384'Liquid crystal display and display method'2003 6,650,392'Cell structure of liquid crystal device'2003 6,444,376'Coloring material, coloring material for color filter, display device and liquid crystal display device'2002 6,181,393'Liquid crystal display device and method of manufacturing the same'2001 6,067,135'Liquid crystal display device and method of manufacturing the same'2000 6,057,906'Liquid crystal display element'2000 6,033,742'Liquid crystal display device'2000 5,995,188'Liquid crystal display device using stacked layers'1999 5,958,291'Liquid crystal display element'1999 5,739,946'Display device'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2020Patents assigned to TOSHIBA KK (31)· patent assignee history

1998–2020Based in Yokohama, JP· patent location history

2003–2016Based in Kanagawa, JP· patent location history

2011–2016Patents assigned to IWANAGA HIROKI (6)· patent assignee history

2011–2016Patents assigned to SATO TAKAHIRO (3)· patent assignee history

2011–2012Patents assigned to AMANO AKIO (2)· patent assignee history

2012–2016Patents assigned to AIGA FUMIHIKO (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
TOSHIBA KK	31	1998–2020
IWANAGA HIROKIself	6	2011–2016
SATO TAKAHIRO	3	2011–2016
AIGA FUMIHIKO	2	2012–2016
AMANO AKIO	2	2011–2012

Locations

Location	Patents	Span
Yokohama, JP	27	1998–2020
Kanagawa, JP	4	2003–2016