Assignee
SUGIYAMA SEISAKUSYO CO LTD
JP·3 granted patents·38 citations·filing 1997–2004
Top patents by PatentIndex Score
3 records- 0158US7051422B2Method of producing plane carbon commutatorSUGIYAMA SEISAKUSYO CO LTD·Filed 2004·Granted May 30, 2006·9 cites·1 claims
- 0257US6784589B1Plane carbon commutatorSUGIYAMA SEISAKUSYO CO LTD·Filed 2000·Granted Aug 31, 2004·6 cites·3 claims
- 0353US5925961APlane carbon commutator and its manufacturing methodSUGIYAMA SEISAKUSYO CO LTD·Filed 1997·Granted Jul 20, 1999·23 cites·7 claims
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