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. 14, 2025
Filed:
Mar. 09, 2022
National University Corporation Hokkaido University, Sapporo, JP;
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Yuji Masubuchi, Sapporo, JP;
Akira Hosono, Sapporo, JP;
Shinichi Kikkawa, Suita, JP;
Masashi Inoguchi, Nagaokakyo, JP;
National University Corporation Hokkaido University, Sapporo, JP;
Murata Manufacturing Co., Ltd, Nagaokakyo, JP;
Abstract
A sintered body containing polycrystalline grains of a metal oxynitride containing at least two metal elements, wherein Ba and at least one metal element of a crystal phase of the sintered body are contained in a triple point that is not a void between the polycrystalline grains. A method for producing the sintered body includes sintering a mixture of at least a metal oxynitride as a main component and a sintering aid containing cyanamide in an atmosphere containing nitrogen or a rare gas or in a reduced-pressure atmosphere of 10 Pa or less while applying a mechanical pressure with a retention time at a maximum heating temperature during the sintering set to 1 minute to 10 minutes.