P

Inventor

SASAKI KUNITSUNA

JP17 patents
⚠️ This page may combine multiple inventors who share the name “SASAKI KUNITSUNA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

KONISHIROKU PHOTO IND

16 patents
US4731292AMar 15, 1988

Magnetic recording medium

KONISHIROKU PHOTO IND53 citations95
US5478626ADec 26, 1995

Magnetic recording medium having a magnetic layer with specified limits of both Ra and R10z surface roughness

KONISHIROKU PHOTO IND10 citations73
US5324582AJun 28, 1994

Magnetic recording medium

KONISHIROKU PHOTO IND13 citations73
US5153079AOct 6, 1992

Magnetic recording medium comprising ferromagnetic powder and polar group containing ginder resins having different glass transition temperatures

KONISHIROKU PHOTO IND9 citations73
US5149585ASep 22, 1992

Magnetic recording medium

KONISHIROKU PHOTO IND7 citations73
US5094916AMar 10, 1992

Magnetic recording medium comprising a polyurethane binder resin having a specified glass transition, molecular weight, and polar group content

KONISHIROKU PHOTO IND8 citations73
US5151330ASep 29, 1992

Magnetic recording medium comprising magnetic particles and a polyurethane resin binder having a polycaprolactone structural unit

KONISHIROKU PHOTO IND8 citations72
US5480713AJan 2, 1996

Magnetic recording medium

KONISHIROKU PHOTO IND8 citations71
USRE36220EJun 1, 1999

Magnetic recording medium having a magnetic layer with specified limits of both RA and R10Z surface roughness

KONISHIROKU PHOTO IND5 citations62
US5545462AAug 13, 1996

Magnetic recording medium

KONISHIROKU PHOTO IND2 citations62
US5449527ASep 12, 1995

Method of producing magnetic recording medium

KONISHIROKU PHOTO IND3 citations62
US5304416AApr 19, 1994

Magnetic recording medium

KONISHIROKU PHOTO IND2 citations62
US5215833AJun 1, 1993

Magnetic recording medium

KONISHIROKU PHOTO IND2 citations62
US5061516AOct 29, 1991

Production method for magnetic recording medium

KONISHIROKU PHOTO IND3 citations62
US5460876AOct 24, 1995

Magnetic recording medium

KONISHIROKU PHOTO IND0 citations51
US5320901AJun 14, 1994

Magnetic recording medium

KONISHIROKU PHOTO IND1 citations51

KONICA MINOLTA HOLDINGS INC

1 patent