Inventor
KAWASUMI YOSHIO
10 patents
⚠️ This page may combine multiple inventors who share the name “KAWASUMI YOSHIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON MINING CO
9 patentsUS4309457AJan 5, 1982
Process of producing multilayer-coated composite powder
NIPPON MINING CO38 citations92
US4792369ADec 20, 1988
Copper wires used for transmitting sounds or images
NIPPON MINING CO19 citations81
US4243728AJan 6, 1981
Double-metal-coated metal sulfide powder and process of producing the same
NIPPON MINING CO27 citations81
US4874436AOct 17, 1989
Method for producing high purity electrolytic copper
NIPPON MINING CO11 citations73
US4309458AJan 5, 1982
Process of producing composite powder coated with noble metal
NIPPON MINING CO12 citations73
US4242376ADec 30, 1980
Method for metal plating of powder by substitution
NIPPON MINING CO13 citations73
US4233254ANov 11, 1980
Process for granulating metal sulfide powders
NIPPON MINING CO17 citations73
US4231848ANov 4, 1980
Method for making a raw board for use in printed circuits
NIPPON MINING CO13 citations73
US4221828ASep 9, 1980
Process of producing metal sulfide powder coated with copper
NIPPON MINING CO10 citations73