Inventor
OGAWA SEIYA
JP12 patents
⚠️ This page may combine multiple inventors who share the name “OGAWA SEIYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
8 patentsUS5214627AMay 25, 1993
Optical disk having read-exclusive and write-enable regions
FUJITSU LTD106 citations96
US4746569AMay 24, 1988
Longitudinal magnetic coated recording medium
FUJITSU LTD109 citations94
US5353265AOct 4, 1994
Magneto optical overwriting methods using a single optical head designed for a two-beam overwrite
FUJITSU LTD26 citations92
US5144601ASep 1, 1992
Magneto-optical overwriting methods using erasing pulses, each of which has a higher frequency and narrower width than that of the overwriting pulses
FUJITSU LTD39 citations92
US6392832B1May 21, 2002
Method for using heat to record on magnetic medium and disk apparatus having temperature changing device
FUJITSU LTD19 citations89
US4650742AMar 17, 1987
Recording media with recording layer of two metal layers sandwiching sublimable organic substance layer
FUJITSU LTD14 citations73
US4070522AJan 24, 1978
Magnetic recording medium
FUJITSU LTD11 citations71
US4822634AApr 18, 1989
Longitudinal magnetic coated recording medium
FUJITSU LTD6 citations69