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Inventor
KOHNO KATSUMI
JP
3 patents
⚠️ This page may combine multiple inventors who share the name “KOHNO KATSUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
2 patents
US4798767A
Jan 17, 1989
Optical information record medium
SONY CORP
7 citations
65
US5993971A
Nov 30, 1999
Optical information record medium
SONY CORP
2 citations
60
SINTO S PREC LTD
1 patent
US9921401B2
Mar 20, 2018
Measuring device with alignment and reference position for measurement object
SINTO S PREC LTD
0 citations
30