Inventor · disambiguated record
Hiroaki Doi
Also filed as: DOI HIROAKI
4 granted patents·105 citations·filing 1981–2003
77Inventor score
Files withHITACHI LTD4
Top patents by PatentIndex Score
4 records- 0188US4528223AComposite fibrous productHITACHI LTD·Filed 1981·Granted Jul 9, 1985·49 cites·13 claims
- 0277US6889516B2Cooling system for motor and cooling control methodHITACHI LTD·Filed 2003·Granted May 10, 2005·24 cites·12 claims
- 0364US6265784B1Resin sealed semiconductor device having improved arrangement for reducing thermal stress within the deviceHITACHI LTD·Filed 1999·Granted Jul 24, 2001·32 cites·10 claims
- 0435US7230320B2Electronic circuit device with reduced breaking and crackingHITACHI LTD·Filed 2003·Granted Jun 12, 2007·0 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →