Assignee
MATSUZAWA SEIKI KK
JP·4 granted patents·81 citations·filing 1983–1993
Top patents by PatentIndex Score
4 records- 0171US4896339AMaterial testing machineMATSUZAWA SEIKI KK·Filed 1988·Granted Jan 23, 1990·39 cites·6 claims
- 0250US4653106AIndentation hardness meterMATSUZAWA SEIKI KK·Filed 1983·Granted Mar 24, 1987·19 cites·3 claims
- 0347US5284049AIndentation hardness testerMATSUZAWA SEIKI KK·Filed 1992·Granted Feb 8, 1994·17 cites·1 claims
- 0446USD356515SHardness testing apparatusMATSUZAWA SEIKI KK·Filed 1993·Granted Mar 21, 1995·6 cites·1 claims
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