ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,489,328, issued on Dec. 2, was assigned to Hitachi Astemo Ltd. (Hitachinaka, Japan).
"Rotary electric machine and electric drive system" was invented by Ryouichi Takahata (Tokyo), Masanori Sawahata (Tokyo), Shinji Yamazaki (Hitachinaka, Japan) and Kenichi Nakayama (Hitachinaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An object of the present invention is to provide a rotary electric machine capable of reducing a difference between a height of a first segment conductor and a height of a second segment conductor. A first segment conductor 121 having a first slot pitch and a second segment conductor 122 having a second slot pitch smaller than t...