Inventor

OGAWA YOKO

JP7 patents

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

HITACHI LTD

3 patents

US6372367B1Apr 16, 2002

Magnetic recording medium, method for producing the same and magnetic recording apparatus using the same

HITACHI LTD20 citations92

US6989535B2Jan 24, 2006

Atomic force microscopy, method of measuring surface configuration using the same, and method of producing magnetic recording medium

HITACHI LTD7 citations73

US6605335B2Aug 12, 2003

Magnetic recording medium

HITACHI LTD11 citations69

KONISHIROKU PHOTO IND

2 patents

US4306010ADec 15, 1981

Photosensitive o-quinone diazide composition and photosensitive lithographic printing plate

KONISHIROKU PHOTO IND27 citations81

US4306011ADec 15, 1981

Photosensitive composite and photosensitive lithographic printing plate

KONISHIROKU PHOTO IND27 citations81

HITACHI GLOBAL STORAGE TECH

2 patents

US7641989B2Jan 5, 2010

Perpendicular magnetic recording medium for high density recording and manufacturing of the same

HITACHI GLOBAL STORAGE TECH3 citations62

US7534507B2May 19, 2009

Perpendicular magnetic recording medium for high density magnetic recording and manufacturing of the same

HITACHI GLOBAL STORAGE TECH1 citations52