Inventor · disambiguated record
Keiichi Tsuzura
Also filed as: TSUZURA KEIICHI
8 granted patents·107 citations·filing 1999–2002
87Inventor score
Files withHITACHI LTD8
Top patents by PatentIndex Score
8 records- 0176US6515247B1Gas insulated switchgearHITACHI LTD·Filed 1999·Granted Feb 4, 2003·30 cites·10 claims
- 0263US6556428B1Gas insulated switchgearHITACHI LTD·Filed 2002·Granted Apr 29, 2003·15 cites·3 claims
- 0359US6188034B1Gas insulated switchgear with flange-spacer assemblyHITACHI LTD·Filed 1999·Granted Feb 13, 2001·19 cites·6 claims
- 0455US6399911B1Gas insulated switchgear apparatusHITACHI LTD·Filed 1999·Granted Jun 4, 2002·14 cites·14 claims
- 0547US6560091B1Gas insulated switchgearHITACHI LTD·Filed 1999·Granted May 6, 2003·12 cites·10 claims
- 0646US6219225B1Gas insulated switch gear and method for assembling thereforHITACHI LTD·Filed 1999·Granted Apr 17, 2001·10 cites·7 claims
- 0744US6337452B1Gas insulated switchgear with flange-spacer assemblyHITACHI LTD·Filed 2001·Granted Jan 8, 2002·2 cites·6 claims
- 0837US6278073B1Gas insulated switching apparatusHITACHI LTD·Filed 1999·Granted Aug 21, 2001·5 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →