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:
Oct. 07, 2025
Filed:
Sep. 26, 2019
Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;
National University Corporation Tokai National Higher Education and Research System, Nagoya, JP;
Nikkiso Co., Ltd., Shibuya-ku, JP;
Yoshihiro Ueoka, Sodegaura, JP;
Shigekazu Tomai, Sodegaura, JP;
Satoshi Katsumata, Sodegaura, JP;
Maki Kushimoto, Nagoya, JP;
Manato Deki, Nagoya, JP;
Yoshio Honda, Nagoya, JP;
Hiroshi Amano, Nagoya, JP;
IDEMITSU KOSAN CO., LTD., Chiyoda-ku, JP;
NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM, Nagoya, JP;
Abstract
A stacked body comprising: a semiconductor layer comprising a group III-V nitride semiconductor, and an electrode layer, wherein the electrode layer comprises magnesium oxide and zinc oxide, wherein the molar ratio of magnesium based on the sum of magnesium and zinc of the electrode layer [Mg/(Mg+Zn)] is 0.25 or more and 0.75 or less, and conductivity of the electrode layer is 1.0×10S/cm or more.