Inventor · disambiguated record
Akira Onuma
Also filed as: ONUMA AKIRA
9 granted patents·418 citations·filing 1981–1998
91Inventor score
Top patents by PatentIndex Score
9 records- 0194US5977515AUnderwater laser processing device including chamber with partitioning wallHITACHI LTD·Filed 1995·Granted Nov 2, 1999·126 cites·16 claims
- 0292US4396823AMethod of electrode current control in welding apparatus having a plurality of electrodesHITACHI LTD·Filed 1981·Granted Aug 2, 1983·65 cites·21 claims
- 0391US5938954ASubmerged laser beam irradiation equipmentHITACHI LTD·Filed 1996·Granted Aug 17, 1999·100 cites·20 claims
- 0483US6225598B1Method of high frequency pulse arc welding and apparatus thereforHITACHI LTD·Filed 1998·Granted May 1, 2001·52 cites·16 claims
- 0575US5687045AThin film magnetic head and production method thereof and magnetic disk drive equipped with this thin film magnetic headHITACHI LTD·Filed 1995·Granted Nov 11, 1997·30 cites·35 claims
- 0658US5654992AMethod of repairing structural materials of nuclear reactor internals and apparatus thereforHITACHI LTD·Filed 1995·Granted Aug 5, 1997·25 cites·16 claims
- 0757US5316617AThin film magnetic head and method of manufacturing the sameHITACHI LTD·Filed 1993·Granted May 31, 1994·13 cites·15 claims
- 0843US4454408AMethod for controlling arc welding and apparatus thereforHITACHI LTD·Filed 1981·Granted Jun 12, 1984·6 cites·14 claims
- 0933US4376816AMethod for storing sheets of photothermographic sheet materialASAHI CHEMICAL IND·Filed 1981·Granted Mar 15, 1983·1 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →