Inventor
OKUNO AKIYASU
JP20 patents
⚠️ This page may combine multiple inventors who share the name “OKUNO AKIYASU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NGK SPARK PLUG CO
18 patentsUS4840853AJun 20, 1989
Surface structure of AlN substrate and a process for producing the same
NGK SPARK PLUG CO68 citations96
US4946807AAug 7, 1990
Composite ceramic material reinforced with silicon carbide whiskers
NGK SPARK PLUG CO24 citations92
US4701426AOct 20, 1987
Silicon carbide-graphite composite material
NGK SPARK PLUG CO31 citations92
US4695517ASep 22, 1987
Composite layer aluminum nitride base sintered body
NGK SPARK PLUG CO26 citations92
US4690909ASep 1, 1987
Silicon carbide-graphite composite material and process for producing same
NGK SPARK PLUG CO30 citations92
US4668452AMay 26, 1987
Process for producing silicon carbide heating elements
NGK SPARK PLUG CO33 citations92
US4336216AJun 22, 1982
Process for producing silicon carbide heating elements
NGK SPARK PLUG CO21 citations82
US4877760AOct 31, 1989
Aluminum nitride sintered body with high thermal conductivity and process for producing same
NGK SPARK PLUG CO20 citations81
US4800137AJan 24, 1989
Composite layer aluminum nitride base sintered body
NGK SPARK PLUG CO23 citations81
US4956317ASep 11, 1990
Whisker-reinforced ceramics
NGK SPARK PLUG CO11 citations74
US4892703AJan 9, 1990
Surface structure of A1N substrate and a process for producing the same
NGK SPARK PLUG CO14 citations74
US4638268AJan 20, 1987
Microwave absorber comprised of a dense silicon carbide body which is water cooled
NGK SPARK PLUG CO15 citations74
US4997798AMar 5, 1991
Process for producing aluminum nitride sintered body with high thermal conductivity
NGK SPARK PLUG CO12 citations73
US4961987AOct 9, 1990
Aluminum nitride sintered body with high thermal conductivity and process for producing same
NGK SPARK PLUG CO10 citations73
US4375517AMar 1, 1983
Sintered cubic boron nitride and process for producing the same
NGK SPARK PLUG CO17 citations73
US5439854AAug 8, 1995
TiC-base/SiC whisker composite ceramic cutting tools
NGK SPARK PLUG CO9 citations72
US4760312AJul 26, 1988
Dense silicon carbide microwave absorber for electron linear accelerator
NGK SPARK PLUG CO5 citations63
US5601764AFeb 11, 1997
Process for making TiC-base/SiC whisker composite ceramic cutting tools
NGK SPARK PLUG CO4 citations61
TOKYO ELECTRIC POWER CO
2 patentsUS6577103B2Jun 10, 2003
Emergency power system, and system for automatically detecting whether or not failure of single cell occurs in battery for use in the system
TOKYO ELECTRIC POWER CO21 citations87
US6902842B2Jun 7, 2005
Current collector of positive electrode and sodium-sulfur battery using the same
TOKYO ELECTRIC POWER CO0 citations43