Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koki Holdings Co Ltd
Hitachi Ltd
Original Assignee
Hitachi Ltd
Hitachi Koki Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filedlitigationCriticalhttps://patents.darts-ip.com/?family=12268915&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JPS6311864(B2)"Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hitachi Ltd, Hitachi Koki Co LtdfiledCriticalHitachi Ltd
Priority to JP2917680ApriorityCriticalpatent/JPS56125956A/ja
Publication of JPS56125956ApublicationCriticalpatent/JPS56125956A/ja
Publication of JPS6311864B2publicationCriticalpatent/JPS6311864B2/ja
H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02K—DYNAMO-ELECTRIC MACHINES
H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
H02K23/26—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by the armature windings
H02K23/38—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by the armature windings having winding or connection for improving commutation, e.g. equipotential connection