Inventor
UTUMI MASAHIRO
JP12 patents
Patents
12 patentsUS4135031AJan 16, 1979
Magnetic recording substance
FUJI PHOTO FILM CO LTD58 citations96
US4617226AOct 14, 1986
Magnetic recording medium
FUJI PHOTO FILM CO LTD32 citations92
US4138229AFeb 6, 1979
Cleaning tape for magnetic head
FUJI PHOTO FILM CO LTD34 citations92
US4146031AMar 27, 1979
Leader or trailer for a magnetic tape
FUJI PHOTO FILM CO LTD19 citations82
US4745017AMay 17, 1988
Magnetic recording medium
FUJI PHOTO FILM CO LTD10 citations74
US4670333AJun 2, 1987
Magnetic recording media
FUJI PHOTO FILM CO LTD7 citations74
US4582757AApr 15, 1986
Magnetic recording medium
FUJI PHOTO FILM CO LTD18 citations74
US4171406AOct 16, 1979
Magnetic recording medium
FUJI PHOTO FILM CO LTD13 citations74
US4598014AJul 1, 1986
Magnetic recording medium
FUJI PHOTO FILM CO LTD10 citations73
US4567057AJan 28, 1986
Method of making magnetic recording medium
FUJI PHOTO FILM CO LTD10 citations73
US4275108AJun 23, 1981
Leader or trailer tape for a magnetic tape
FUJI PHOTO FILM CO LTD15 citations69
US4567063AJan 28, 1986
Process for producing magnetic recording media
FUJI PHOTO FILM CO LTD4 citations63