The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 08, 2026
Filed:
Jan. 13, 2023
Proterial, Ltd., Tokyo, JP;
Yamaha Robotics Co., Ltd., Musashimurayama, JP;
Osamu Kakutani, Musashimurayama, JP;
Seiki Takedomi, Takasaki, JP;
Tatsuya Nakano, Takasaki, JP;
Minoru Yoshida, Takasaki, JP;
Proterial, Ltd., Tokyo, JP;
Yamaha Robotics Co., Ltd., Tokyo, JP;
Abstract
A three-phase coil structure () having a two-phase coil set () including a plurality of rectangular air-core coils arranged side by side so as to be adjacent to each other in the same plane includes a one-phase coil set () including two air-core coils having different sizes and bending angles bent at both ends and disposed to straddle adjacent long sides of the two-phase coil set (), wherein a number of turns of each of the air-core coils of the one-phase coil set () is larger than a number of turns of each of the air-core coils of the two-phase coil set ().