Inventor · disambiguated record
Akira Bando
Also filed as: BANDO AKIRA
36 granted patents·11 pending applications·437 citations·filing 1986–2022
97Inventor score
Files withHITACHI LTD20HITACHI MITSUBISHI HYDRO CORPORATION9BANDO AKIRA5SHOWA DENKO KK5ONOZUKA AKIHIRO3
Top patents by PatentIndex Score
47 records- 0197US10536104B2Variable speed generator-motor apparatus and variable speed generator-motor systemHITACHI MITSUBISHI HYDRO CORPORATION·Filed 2016·Granted Jan 14, 2020·14 cites·6 claims
- 0294US8896261B2Doubly-fed generator and doubly-fed electric machineBANDO AKIRA·Filed 2012·Granted Nov 25, 2014·17 cites·20 claims
- 0393US4694189AControl system for variable speed hydraulic turbine generator apparatusHITACHI LTD·Filed 1986·Granted Sep 15, 1987·85 cites·10 claims
- 0492US10784808B2Variable speed generator-motor apparatus and variable speed generator-motor systemHITACHI MITSUBISHI HYDRO CORPORATION·Filed 2019·Granted Sep 22, 2020·7 cites·1 claims
- 0592US4754156AControl apparatus for variable-speed hydraulic power generating systemHITACHI LTD·Filed 1987·Granted Jun 28, 1988·66 cites·5 claims
- 0683US12289063B2Modular multilevel power converter and variable speed generator-motorHITACHI MITSUBISHI HYDRO CORPORATION·Filed 2020·Granted Apr 29, 2025·2 cites·6 claims
- 0782US4952852APower system and synchronizing breakers for a variable speed generator motor systemHITACHI LTD·Filed 1988·Granted Aug 28, 1990·48 cites·6 claims
- 0880US11223310B2Variable speed generator/motor deviceHITACHI MITSUBISHI HYDRO CORPORATION·Filed 2019·Granted Jan 11, 2022·4 cites·12 claims
- 0980US4823018AControl system for variable speed water-wheel generator apparatusHITACHI LTD·Filed 1987·Granted Apr 18, 1989·37 cites·8 claims
- 1065US9166492B2Multilevel voltage source converter and method for balancing capacitorsHITACHI LTD·Filed 2013·Granted Oct 20, 2015·2 cites·17 claims
- 1162US8541292B2Group III nitride semiconductor epitaxial substrate and method for manufacturing the sameBANDO AKIRA·Filed 2009·Granted Sep 24, 2013·1 cites·7 claims
- 1261US8867247B2DC/AC power converter with DC side double frequency pulsation suppression caused by AC side faultsBANDO AKIRA·Filed 2012·Granted Oct 21, 2014·2 cites·3 claims
- 1359US8161362B2Task management control apparatus and method, having redundant processing comparisonBANDO AKIRA·Filed 2006·Granted Apr 17, 2012·2 cites·14 claims
- 1458US8882910B2AlGaN substrate and production method thereofAMANO HIROSHI·Filed 2009·Granted Nov 11, 2014·0 cites·2 claims
- 1558US6389041B1Synchronization system and synchronization method of multisystem control apparatusHITACHI LTD·Filed 1998·Granted May 14, 2002·31 cites·17 claims
- 1657US4743827AVariable speed pumping-up electrical power systemHITACHI LTD·Filed 1987·Granted May 10, 1988·28 cites·4 claims
- 1753US7158521B2Synchronization system and synchronization method of multisystem control apparatusHITACHI LTD·Filed 2002·Granted Jan 2, 2007·3 cites·7 claims
- 1851US4980629AAC-excited generator/motor apparatusHITACHI LTD·Filed 1989·Granted Dec 25, 1990·13 cites·19 claims
- 1950US5265002AFault protection for a multiphase bridge power converterHITACHI LTD·Filed 1991·Granted Nov 23, 1993·15 cites·12 claims
- 2050US5099409ASemiconductor electric power conversion system enabling fault and/or overtemperature protectionHITACHI LTD·Filed 1990·Granted Mar 24, 1992·20 cites·10 claims
- 2149US2006225643A1AlGaN substrate and production method thereofSHOWA DENKO KK·Filed 2006·Application pending·0 cites
- 2248US2011254048A1Group iii nitride semiconductor epitaxial substrateSHOWA DENKO KK·Filed 2008·Application pending·0 cites
- 2347US11107892B2SiC epitaxial wafer and method for producing sameSHOWA DENKO KK·Filed 2018·Granted Aug 31, 2021·0 cites·7 claims
- 2447US2025119035A1Variable-speed synchronous generator-motor deviceHITACHI MITSUBISHI HYDRO CORPORATION·Filed 2022·Application pending·0 cites
- 2546US9219426B2Switching element, power converter, direct current transmission system, current control device, method of controlling power converter, and method of controlling current in voltage source converterHITACHI LTD·Filed 2013·Granted Dec 22, 2015·0 cites·14 claims
- 2646US2014167701A1Power Converter and its Control MethodHITACHI LTD·Filed 2013·Application pending·0 cites
- 2746US2010050062A1Sending device, receiving device, communication control device, communication system, and communication control methodONOZUKA AKIHIRO·Filed 2009·Application pending·0 cites
- 2845US9573489B2Control device for railway power conditioner and control system for railway power conditionerHITACHI LTD·Filed 2013·Granted Feb 21, 2017·0 cites·13 claims
- 2945US2021118611A1Variable speed generator/motor deviceHITACHI MITSUBISHI HYDRO CORPORATION·Filed 2019·Application pending·0 cites
- 3045US2011214125A1Task management control apparatus and method having redundant processing comparisonBANDO AKIRA·Filed 2011·Application pending·0 cites
- 3144US12355377B2Adjustable speed generator motor system with full power converterHITACHI MITSUBISHI HYDRO CORPORATION·Filed 2021·Granted Jul 8, 2025·0 cites·10 claims
- 3244US8095695B2Control apparatus for process input-output deviceOTSUKA YUSAKU·Filed 2009·Granted Jan 10, 2012·0 cites·19 claims
- 3344US7555627B2Input-output control apparatus, input-output control method, process control apparatus and process control methodHITACHI LTD·Filed 2006·Granted Jun 30, 2009·0 cites·13 claims
- 3442US9208037B2Duplexed operation processor control system, and duplexed operation processor control methodSHIMIZU TOSHIKI·Filed 2009·Granted Dec 8, 2015·0 cites·7 claims
- 3542US7485874B2Apparatus for manufacturing semiconductor substratesSUMCO CORP·Filed 2006·Granted Feb 3, 2009·0 cites·14 claims
- 3642US6038683AReplicated controller and fault recovery method thereofHITACHI LTD·Filed 1998·Granted Mar 14, 2000·15 cites·4 claims
- 3742US5148093ASystem for controlling AC excited synchronous machineHITACHI LTD·Filed 1990·Granted Sep 15, 1992·12 cites·4 claims
- 3841US11942873B2Secondary magnetic excitation generator-motor deviceHITACHI MITSUBISHI HYDRO CORPORATION·Filed 2019·Granted Mar 26, 2024·0 cites·12 claims
- 3941US8209594B2Sending device, receiving device, communication control device, communication system, and communication control methodONOZUKA AKIHIRO·Filed 2010·Granted Jun 26, 2012·0 cites·6 claims
- 4041US4766360AInduction generator/motor systemHITACHI LTD·Filed 1986·Granted Aug 23, 1988·9 cites·6 claims
- 4141US2007006025A1Sending device, receiving device, communication control device, communication system, and communication control methodONOZUKA AKIHIRO·Filed 2006·Application pending·0 cites
- 4241US2014078796A1Power Conversion Apparatus and Control Method ThereofHITACHI LTD·Filed 2013·Application pending·0 cites
- 4339US8423681B2Control apparatus for process input-output deviceOTSUKA YUSAKU·Filed 2011·Granted Apr 16, 2013·0 cites·3 claims
- 4438US2019376206A1SiC EPITAXIAL WAFER AND METHOD FOR PRODUCING SAMESHOWA DENKO KK·Filed 2017·Application pending·0 cites
- 4537US2019169742A1GAS PIPING SYSTEM, CHEMICAL VAPOR DEPOSITION DEVICE, FILM DEPOSITION METHOD, AND METHOD FOR PRODUCING SiC EPITAXIAL WAFERSHOWA DENKO KK·Filed 2017·Application pending·0 cites
- 4633US4743826APumping-up generator/motor system and method of operation of the sameHITACHI LTD·Filed 1986·Granted May 10, 1988·4 cites·4 claims
- 4731US12237789B2Modular multilevel converter and modular multilevel converter systemHITACHI MITSUBISHI HYDRO CORPORATION·Filed 2020·Granted Feb 25, 2025·0 cites·3 claims
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