Assignee
OKANO VALVE SEIZO KK
3 granted patents·34 citations·filing 1975–1982
Top patents by PatentIndex Score
3 records- 0161US4531039AAutomatic valve seat build-up welding apparatusOKANO VALVE SEIZO KK·Filed 1982·Granted Jul 23, 1985·15 cites·10 claims
- 0257US4007561ADevice for automatically lapping valve seatOKANO VALVE SEIZO KK·Filed 1975·Granted Feb 15, 1977·12 cites·4 claims
- 0345US4114323ADevice for automatically lapping wedge-gate valve seatOKANO VALVE SEIZO KK·Filed 1976·Granted Sep 19, 1978·7 cites·2 claims
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