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:
May. 29, 2018
Filed:
Jul. 03, 2015
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Yuichi Niimura, Osaka, JP;
Abstract
An optical coupling device includes a primary conductive plate, a light-emitting part, a secondary conductive plate, a light-receiving part, and a first conductive part. The light-emitting part is located on the primary conductive plate, converts an electrical signal to light, and emits the light. The secondary conductive plate is spaced apart from the primary conductive plate, and faces the light-emitting part. The light-receiving part is disposed on the secondary conductive plate to face the light-emitting part, and converts light from the light-emitting part to an electrical signal. The first conductive part is disposed at a side facing the light-emitting part, and has a point on which an electric field generated by a potential difference between the primary conductive plate and the secondary conductive plate is concentrated.