Inventor · disambiguated record
Hiroyuki Amma
Also filed as: AMMA HIROYUKI
3 granted patents·1 pending application·19 citations·filing 1998–2003
66Inventor score
Technology areasB22F
Top patents by PatentIndex Score
4 records- 0155US6503443B1Metallic powder molding material and its re-compression molded body and sintered body obtained from the re-compression molded body and production methods thereofUNISIA JECS CORP·Filed 2000·Granted Jan 7, 2003·3 cites·18 claims
- 0252US6905530B2Metallic powder-molded body, re-compacted body of the molded body, sintered body produced from the re-compacted body, and processes for production thereofKAWASAKI STEEL CO·Filed 2002·Granted Jun 14, 2005·2 cites·21 claims
- 0350US6159266ASintered powder metal bodies and process for producing the sameUNISIA JECS CORP·Filed 1998·Granted Dec 12, 2000·14 cites·15 claims
- 0439US2003215349A1Production method of high density iron based forged partHITACHI UNISIA AUTOMOTIVE LTD·Filed 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →