HOYA GLASS WORKS LTD innovation strategy

Patent filings in countries

#	Country	Total Patents
#1	Japan	59
#2	United States	38
#3	Germany	26
#4	France	15
#5	United Kingdom	13
#6	Belgium	2
#7	Brazil	2
#8	Switzerland	2
#9	Australia	1
#10	Republic of Korea	1
#11	Netherlands	1
#12	USSR (Union of Socialist Soviet Republics)	1

#	Industry
#1	Materials and metallurgy
#2	Machines
#3	Optics
#4	Environmental technology
#5	Packaging and shipping
#6	Basic communication technologies

#	Technology
#1	Treatment of glass
#2	Unspecified technologies
#3	Manufacturing processes
#4	Containers for goods storage
#5	Optical systems
#6	Resonators
#7	Devices using light amplification
#8	Climate change mitigation in goods production
#9	Unspecified technologies
#10	Climate change mitigation in wastewater treatment

Publication	Filing date	Title
KR850001378B1	1980-03-10	Fabrication method of camera filter
JPS54159428A	1978-06-06	Optical glass
JPS54137357A	1978-04-17	Near infrared absorbing filter for color television camera
JPS5489392A	1977-12-27	Method of washing glass polishing good
JPS5443220A	1977-09-09	Laser glass having optical length with little or no temperature dependency
JPS5438311A	1977-08-31	Low temperature melting coating glass capable of highly absorbing laser
JPS5437118A	1977-08-30	Farady rotary glass
JPS5413522A	1977-05-30	Farady rotary glass
JPS53124521A	1977-04-07	Glass for faraday rotation elements
JPS53120717A	1977-03-30	Faraday rotation glass
JPS53120716A	1977-03-30	Faraday rotation glass
JPS53108110A	1977-03-03	Optical glass
JPS53105517A	1977-02-28	Fluorophosphate laser glass
JPS5392816A	1977-01-27	Optical glass
JPS5388014A	1977-01-13	Faraday rotation glass
JPS5385813A	1976-12-30	Spectacle glass having glareeprotection effect
JPS5378217A	1976-12-22	Phosphate optical glass through which light beam length beeing little dependnt on temperature
JPS5372027A	1976-12-09	Hazeeproof glass for spectacle
JPS5369206A	1976-12-02	Filter glass
JPS5369207A	1976-12-02	Green filter glass