Inventor
KOYAMA KAZUAKI
JP10 patents
⚠️ This page may combine multiple inventors who share the name “KOYAMA KAZUAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SANYO ELECTRIC CO
5 patentsUS4404608ASep 13, 1983
Magnetic head with an improved inner core
SANYO ELECTRIC CO9 citations73
US4475137AOct 2, 1984
Magnetic transducer
SANYO ELECTRIC CO13 citations72
US4891878AJan 9, 1990
Method of making a magnetic head
SANYO ELECTRIC CO2 citations62
US4811147AMar 7, 1989
Magnetic head incorporating a glass composition of barium oxide and phosphorous pentaoxide
SANYO ELECTRIC CO3 citations62
US4807075AFeb 21, 1989
Magnetic head
SANYO ELECTRIC CO0 citations51