Inventor · disambiguated record
Akira Yamagishi
Also filed as: YAMAGISHI AKIRA
25 granted patents·9 pending applications·157 citations·filing 1976–2024
93Inventor score
Files withHITACHI LTD22SEIKO EPSON CORP5NITTOH KOGAKU KK4FUJI PHOTO OPTICAL CO LTD1HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD1
Top patents by PatentIndex Score
34 records- 0195US11807007B2Capping device and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2021·Granted Nov 7, 2023·2 cites·12 claims
- 0291US6137638AProjection zoom lens system and projector apparatusNITTOH KOGAKU KK·Filed 1999·Granted Oct 24, 2000·111 cites·4 claims
- 0388US7448760B2Optical system and rear projectorNITTOH KOGAKU KK·Filed 2005·Granted Nov 11, 2008·13 cites·15 claims
- 0486US2025010608A1Capping device and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2024·Application pending·0 cites
- 0584US12128679B2Capping device and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2023·Granted Oct 29, 2024·0 cites·12 claims
- 0683US9898830B2Oil leakage detector and oil leakage detection methodHITACHI LTD·Filed 2016·Granted Feb 20, 2018·4 cites·19 claims
- 0781US10978237B2Core for stationary induction apparatusHITACHI LTD·Filed 2018·Granted Apr 13, 2021·2 cites·9 claims
- 0878US10665382B2Stationary induction apparatusHITACHI LTD·Filed 2017·Granted May 26, 2020·2 cites·17 claims
- 0978US10658106B2Stationary induction electrical apparatusHITACHI LTD·Filed 2017·Granted May 19, 2020·2 cites·7 claims
- 1077US10755442B2Oil leakage detector and oil leakage detection method and image processing unitHITACHI LTD·Filed 2018·Granted Aug 25, 2020·2 cites·20 claims
- 1172US10234355B2Leakage oil detection systemHITACHI LTD·Filed 2016·Granted Mar 19, 2019·2 cites·8 claims
- 1272US9947453B2Stationary induction electric apparatusHITACHI LTD·Filed 2016·Granted Apr 17, 2018·1 cites·2 claims
- 1362US10113933B2Leakage oil detector system and methodHITACHI LTD·Filed 2015·Granted Oct 30, 2018·1 cites·9 claims
- 1461US10665381B2Stationary induction apparatus coreHITACHI LTD·Filed 2018·Granted May 26, 2020·0 cites·12 claims
- 1560US2025135794A1Accommodation device and liquid ejection apparatusSEIKO EPSON CORP·Filed 2024·Application pending·0 cites
- 1659US10421281B2Liquid ejecting apparatusSEIKO EPSON CORP·Filed 2018·Granted Sep 24, 2019·0 cites·11 claims
- 1758US7119966B2Projection lens system and projectorNITTOH KOGAKU KK·Filed 2005·Granted Oct 10, 2006·2 cites·3 claims
- 1856US10509021B2Diagnosing device for on-load tap changing apparatus, diagnosing method for on-load tap changing apparatus, and diagnosing device for transformerHITACHI LTD·Filed 2018·Granted Dec 17, 2019·0 cites·18 claims
- 1955US2024288512A1Transformer Diagnostics SystemHITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD·Filed 2022·Application pending·0 cites
- 2054US11994448B2Leakage oil detection device and leakage oil detection methodHITACHI LTD·Filed 2019·Granted May 28, 2024·0 cites·5 claims
- 2150US10629355B2Stationary induction apparatusHITACHI LTD·Filed 2018·Granted Apr 21, 2020·0 cites·5 claims
- 2248US11494888B2Work terminal, oil leakage detection apparatus, and oil leakage detection methodHITACHI LTD·Filed 2018·Granted Nov 8, 2022·0 cites·14 claims
- 2348US9711274B2Stationary induction apparatusHITACHI LTD·Filed 2015·Granted Jul 18, 2017·0 cites·9 claims
- 2448US2016055965A1Stationary Induction Electric MachineHITACHI LTD·Filed 2014·Application pending·0 cites
- 2547US9691536B2Static apparatusHITACHI LTD·Filed 2015·Granted Jun 27, 2017·0 cites·18 claims
- 2646US2016021351A1Optical system and device having optical systemNITTOH KOGAKU KK·Filed 2014·Application pending·0 cites
- 2744US10403427B2TransformerHITACHI LTD·Filed 2016·Granted Sep 3, 2019·0 cites·6 claims
- 2843US2018204668A1Stationary Induction ApparatusHITACHI LTD·Filed 2018·Application pending·0 cites
- 2942US9953744B2Electrical insulating paper and stationary induction electrical apparatus using the sameHITACHI LTD·Filed 2015·Granted Apr 24, 2018·0 cites·5 claims
- 3037US5534695AThermal image analysis systemMITSUBISHI ELECTRIC CORP·Filed 1994·Granted Jul 9, 1996·10 cites·26 claims
- 3137US2016268037A1Stationary Induction Electric Apparatus and Method for Making the SameHITACHI LTD·Filed 2016·Application pending·0 cites
- 3231US4073573AZoom lens systemFUJI PHOTO OPTICAL CO LTD·Filed 1976·Granted Feb 14, 1978·3 cites·5 claims
- 3331US2016133382A1Stationary Induction ApparatusHITACHI LTD·Filed 2015·Application pending·0 cites
- 3429US2016133381A1Stationary Induction ApparatusHITACHI LTD·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →