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:
Dec. 04, 1990
Filed:
Jun. 12, 1987
Yutaka Hayashi, Ibaraki, JP;
Eiichi Suzuki, Ibaraki, JP;
Abstract
A semiconductor device having a sandwich construction formed by causing a semiconductor region and an opposed region to face each other across a thin film which is made of a substance having a wider forbidden band gap than that of the semiconductor region and having a barrier relative to the semiconductor region. The so-formed device exhibits various effects such as amplification, negative resistance, switching, voltage or current generation, photo-electric conversion, and light-emission either upon irradiation with light or upon application of a power source thereon.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile