YOKOYAMA NORIMASA

Overview

About

YOKOYAMA NORIMASA has a total of 29 patent applications. Its first patent ever was published in 2007. It filed its patents most often in United States. Its main competitors in its focus markets organic fine chemistry, semiconductors and basic materials chemistry are YEN FENG WEN, GUANGDONG AGLAIA OPTOELECTRONIC MAT CO LTD and LUMINESCENCE TECH CORP.

Patent filings in countries

#	Country	Total Patents
#1	United States	29

#	Industry
#1	Organic fine chemistry
#2	Semiconductors
#3	Basic materials chemistry
#4	Electrical machinery and energy
#5	Machines

#	Technology
#1	Semiconductor devices
#2	Heterocyclic compounds
#3	Materials for miscellaneous applications
#4	Special electric heating or lighting
#5	Acyclic or carbocyclic compounds
#6	Unspecified technologies
#7	Pigments
#8	Organic chemistry methods
#9	Special acyclic compounds

Publication	Filing date	Title
US2013292663A1	2012-01-16	Compound having substituted bipyridyl group and pyridoinodole ring structure, and organic electroluminescent device
US2011257404A1	2010-01-25	Method of producing aromatic amino compounds
US2009108750A1	2007-03-20	Compound having thiadiazole ring structure substituted with pyridyl group and organic electroluminescent device