Assignee
HITACHI POWDERED METAL CO LTD
JP·3 granted patents·33 citations·filing 1996–2000
Top patents by PatentIndex Score
3 records- 0154US6049983AMethod for producing a sintered porous bearing and the sintered porous bearingHITACHI POWDERED METAL CO LTD·Filed 1997·Granted Apr 18, 2000·14 cites·3 claims
- 0253US6361737B1Method for producing a sintered porous bearing and the sintered porous bearingHITACHI POWDERED METAL CO LTD·Filed 2000·Granted Mar 26, 2002·5 cites·4 claims
- 0350US5819154AManufacturing process of sintered iron alloy improved in machinability, mixed powder for manufacturing, modification of iron alloy and iron alloy productHITACHI POWDERED METAL CO LTD·Filed 1996·Granted Oct 6, 1998·14 cites·16 claims
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