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. 22, 2026
Filed:
Sep. 02, 2022
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;
Akira Ishiguro, Oita Oita, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Toshiba Electronic Devices & Storage Corporation, Kawasaki, JP;
Abstract
An isolator includes first and second coils, a first insulating film and a primary side conductor. The first coil at a primary side and the second coil at a secondary side are magnetically coupled via the first insulating film. The second coil and the primary side conductor are provided at a front surface side of the first insulating film. The first insulating film includes a plurality of island-shaped convex portions at the front surface side. The island-shaped convex portions are provided between the second coil and the primary side conductor. The island-shaped convex portions provide a creepage distance from the second coil to the primary side conductor along the front surface of the first insulating film. The creepage distance is longer in any direction along the front surface of the first insulating film than a direct distance from the second coil to the primary side conductor.