Inventor · disambiguated record
Eiichi Hiraoka
Also filed as: HIRAOKA EIICHI
4 granted patents·3 citations·filing 1989–2004
60Inventor score
Top patents by PatentIndex Score
4 records- 0134US6965115B2Airtight processing apparatus, airtight processing method, and electron beam processing apparatusSUMITOMO HEAVY INDUSTRIES·Filed 2004·Granted Nov 15, 2005·0 cites·14 claims
- 0223US4955498ASealing structure of pressure containerSUMITOMO HEAVY INDUSTRIES·Filed 1989·Granted Sep 11, 1990·2 cites·1 claims
- 0322US4942972APressure vesselSUMITOMO HEAVY INDUSTRIES·Filed 1989·Granted Jul 24, 1990·0 cites·6 claims
- 0416US4960221APressure vesselHIRAOKA EIICHI·Filed 1989·Granted Oct 2, 1990·1 cites·1 claims
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