IP Verse

Power Converter - EP2887524

The patent EP2887524 was granted to Tokyo Institute OF Technology on Aug 11, 2021. The application was originally filed on Aug 20, 2012 under application number EP12883406A. The patent is currently recorded with a legal status of "Revoked".

EP2887524

TOKYO INSTITUTE OF TECHNOLOGY
Application Number
EP12883406A
Filing Date
Aug 20, 2012
Status
Revoked
May 7, 2025
Publication Date
Aug 11, 2021
External Links
Slate, Register, Google Patents

Patent Summary

Patent Family

Patent Family

Patent Oppositions

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

CompanyOpposition DateRepresentativeOpposition Status

Get instant alerts for new oppositions and patent status changes

HITACHI ENERGYMay 11, 2022VOSSIUS & PARTNER PATENTANWALTE RECHTSANWALTE MBBADMISSIBLE

Patent Citations (26) New

Patent citations refer to prior patents cited during different phases such as opposition or international search.

Citation PhasePublication Number
INTERNATIONAL-SEARCH-REPORTWO2009139077
INTERNATIONAL-SEARCH-REPORTWO2009144987
OPPOSITIONCN102158112
OPPOSITIONEP2485384
OPPOSITIONEP2784927
OPPOSITIONJP2003274559
OPPOSITIONJP2008306805
OPPOSITIONJP2011182517
OPPOSITIONJP2012044839
OPPOSITIONUS2010020577
OPPOSITIONUS2011075465
OPPOSITIONUS2011194323
OPPOSITIONUS2011280049
OPPOSITIONUS7986535
OPPOSITIONWO2009139077
OPPOSITIONWO2009144987
OPPOSITIONWO2010145708
OPPOSITIONWO2011067090
OPPOSITIONWO2011082935
OPPOSITIONWO2011129223
OPPOSITIONWO2012099176
SEARCHEP2485384
SEARCHJP2011182517
SEARCHWO2010145708
SEARCHWO2011129223
SEARCHWO2012099176

Non-Patent Literature (NPL) Citations (17) New

NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.

Citation PhaseReference Text
DESCRIPTION- F. KAMMERER; M. BRAUN, "A novel cascaded vector control scheme for the modular multilevel matrix converter", U.S.A.), IEEE. REC, IEEE-IECON, (2011), doi:doi:10.1109/IECON.2011.6119461, pages 1097 - 1102, XP032104636
EXAMINATION- A. J KORN ET AL, "Direct modular multi-level converter for gearless low-speed drives", 2011 14TH EUROPEAN CONFERENCE ON POWER ELECTRONICS AND APPLICATIONS (EPE 2011) : BIRMINGHAM, UNITED KINGDOM, 30 AUGUST - 1 SEPTEMBER 2011, Piscataway, NJ, (20110901), ISBN 978-1-61284-167-0, pages 1 - 7, XP055254951
EXAMINATION- ANGKITITRAKUL S ET AL, "Capacitor Voltage Balancing Control for a Modular Matrix Converter", APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION, 2006. APEC '06. T WENTY-FIRST ANNUAL IEEE MARCH 19, 2006, PISCATAWAY, NJ, USA,IEEE, PISCATAWAY, NJ, USA, (20060319), doi:10.1109/APEC.2006.1620764, ISBN 978-0-7803-9547-3, pages 1659 - 1665, XP010910170
INTERNATIONAL-SEARCH-REPORT- S.ANGKITIRAKUL, "Capacitor Voltage Balancing Control for a Modular Matrix Converter", IEEE GIJIROKU, IEEE OYO POWER ELECTRONICS SENMONKA KAIGI, (2006), XP010910170
OPPOSITION- A. J. KORN et al., "Direct modular multi-level converter for gearless low-speed drives", Proceedings of the 2011 14th European Conference on Power Electronics and Applications, (20110000), pages 1 - 7, XP055254951
OPPOSITION- M. HAGIWARA et al., "Control and experiment of pulsewidth-modulated modular multilevel converters", IEEE transactions on power electronics, (20090700), vol. 24, no. 7, pages 1737 - 1746, XP011264389
OPPOSITION- Mohan Ned, Underland T. M., Robbins W. P., "Chapter 1: Power Electronics Systems", Power Electronics: Converters, Applications, and Design, John Wiley, (20030101), pages 3 - 4, XP055923761
OPPOSITION- R. E. BETZ et al., "Using a cascaded H-bridge STATCOM for rebalancing unbalanced voltages", 2007 7th International Conference on Power Electronics, (20070000), pages 1219 - 1224, XP031367246
OPPOSITION- T. J. SUMMER S et al., "Phase leg voltage balancing of a cascaded H-Bridge converter based STATCOM using zero sequence injection", 2 009 13th European Conference on Power Electronics and Applications, (20090000), pages 1 - 10, XP031541333
OPPOSITION- Korn A.J., Winkelnkemper M., Steimer P., Kolar J.W., "Capacitor voltage balancing in modular multilevel converters", 6th IET International Conference on Power Electronics, Machines and Drives (PEMD 2012), IET, (20120327), doi:10.1049/cp.2012.0158, ISBN 978-1-84919-616-1, page P119, XP055923757
OPPOSITION- Angkititrakul S., Erickson R.W., "Capacitor Voltage Balancing Control for a Modular Matrix Converter", Applied Power Electronics Conference and Exposition, 2006. APEC '06. T wenty-First Annual IEEE March 19, 2006, Piscataway, NJ, USA,IEEE, Piscataway, NJ, USA, Piscataway, NJ, USA , (20060319), doi:10.1109/APEC.2006.1620764, ISBN 978-0-7803-9547-3, pages 1659 - 1665, XP010910170
OPPOSITION- L. ZHANG et al., "Voltage balancing control of a novel modular multilevel converter", 2011 4th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT, (20110000), doi:10.1109/DRPT.2011.5993872, pages 109 - 114, XP032039111
OPPOSITION- M.P. Kazmierkowski ; A.J. Moradewicz, "Contactless energy transfer (CET) systems A review", Power Electronics and Motion Control Conference (EPE/PEMC), 2012 15th International, IEEE, (20120904), doi:10.1109/EPEPEMC.2012.6397378, ISBN 978-1-4673-1970-6, pages Session 3 - Session 3-6, XP032311980
OPPOSITION- F. KAMMERER et al., "A novel cascaded vector control scheme for the Modular Multilevel Matrix Converter", IECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society, (20110000), doi:10.1109/IECON.2011.6119461, pages 1097 - 1102, XP032104636
SEARCH- BETZ R E ET AL, "Using a cascaded H-bridge STATCOM for rebalancing unbalanced voltages", POWER ELECTRONICS, 2007. ICPE '07. 7TH INTERNATONAL CONFERENCE ON, IEEE, PISCATAWAY, NJ, USA, (20071022), ISBN 978-1-4244-1871-8, pages 1219 - 1224, XP031367246 [A] 1-5 * the whole document *
SEARCH- SUMMERS T J ET AL, "Phase leg voltage balancing of a cascaded H-Bridge converter based STATCOM using zero sequence injection", 13TH EUROPEAN CONFERENCE ON POWER ELECTRONICS AND APPLICATIONS, 2009 : EPE '09 ; 8 - 10 SEPT. 2009, BARCELONA, SPAIN, IEEE, PISCATAWAY, NJ, USA, (20090908), ISBN 978-1-4244-4432-8, pages 1 - 10, XP031541333 [A] 1-5 * the whole document *
SEARCH- FELIX KAMMERER ET AL, "A novel cascaded vector control scheme for the Modular Multilevel Matrix Converter", IECON 2011 - 37TH ANNUAL CONFERENCE ON IEEE INDUSTRIAL ELECTRONICS SOCIETY, IEEE, (20111107), doi:10.1109/IECON.2011.6119461, ISBN 978-1-61284-969-0, pages 1097 - 1102, XP032104636 [Y] 1-5 * the whole document *

Download Citation Report

Get a free citation report including examiner, opposition, and international search citations.

Get Citation Report

Dossier Documents

The dossier documents provide a comprehensive record of the patent’s prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent’s legal journey and any challenges it may have faced during examination.

  • Date

    Description

  • Get instant alerts for new documents