Inventor
YAMAUCHI KOICHI
JP11 patents
⚠️ This page may combine multiple inventors who share the name “YAMAUCHI KOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJI PHOTO FILM CO LTD
5 patentsUS5075167ADec 24, 1991
Magnetic recording medium
FUJI PHOTO FILM CO LTD31 citations92
US5126202AJun 30, 1992
Magnetic recording medium containing ferro magnetic powder, polar group containing resins in a specific ratio and carbon black of a specific size range
FUJI PHOTO FILM CO LTD8 citations73
US4503120AMar 5, 1985
Magnetic recording medium
FUJI PHOTO FILM CO LTD11 citations72
US4431700AFeb 14, 1984
Magnetic recording medium
FUJI PHOTO FILM CO LTD4 citations63
US5112680AMay 12, 1992
Magnetic recording medium
FUJI PHOTO FILM CO LTD2 citations62