Inventor · disambiguated record
Ryuji Iyotani
Also filed as: IYOTANI RYUJI
5 granted patents·108 citations·filing 1976–2001
82Inventor score
Files withHITACHI LTD5
Top patents by PatentIndex Score
5 records- 0189US6380796B2Semiconductor power converting apparatusHITACHI LTD·Filed 2001·Granted Apr 30, 2002·60 cites·5 claims
- 0266US4100434AGate controlling apparatus for a thyristor valveHITACHI LTD·Filed 1976·Granted Jul 11, 1978·14 cites·12 claims
- 0355US6242968B1Semiconductor power converting apparatusHITACHI LTD·Filed 2000·Granted Jun 5, 2001·6 cites·14 claims
- 0453US5424937AGate drive power source for electric power converterHITACHI LTD·Filed 1993·Granted Jun 13, 1995·21 cites·9 claims
- 0545US4223236AGate controlling apparatus for a thyristor valveHITACHI LTD·Filed 1978·Granted Sep 16, 1980·7 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →