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:
Mar. 10, 2026
Filed:
Sep. 22, 2023
Applicant:
Proterial, Ltd., Tokyo, JP;
Inventors:
Assignee:
Proterial, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B 3/30 (2006.01);
U.S. Cl.
CPC ...
H01B 3/307 (2013.01);
Abstract
The insulated wire has a conductor having a long shape, and an insulation film including multiple pores and covering the conductor, wherein an opening area ratio SR measured by a method below is 1% or less. The method of measuring the opening area ratio SR includes peeling the insulation film from the conductor; obtaining a SEM image showing an interface on a conductor side in the insulation film peeled; calculating an area Sof an observation region that is at least a part of the SEM image; and an area Sof portions where the multiple pores are open in the observation region; and calculating the opening area ratio SR by the following Formula: SR=(S/S)×100.