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:
Jul. 14, 2021
National Institute of Information and Communications Technology, Koganei, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Hidehisa Tazawa, Osaka, JP;
Yasunori Murakami, Osaka, JP;
Akira Otomo, Koganei, JP;
Toshiki Yamada, Koganei, JP;
Hideo Yokohama, Koganei, JP;
Rieko Ueda, Koganei, JP;
NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY, Tokyo, JP;
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;
Abstract
A method of producing a nonlinear optical device is provided. In a surface of a semiconductor substrate, a recessed part is formed. In an environment under reduced pressure, the first liquid material is filled into the recessed part. A second liquid material is brought into contact with a first liquid material filled in the recessed part, and thereby a third liquid material is prepared. The third liquid material is solidified, and thereby an embedded portion is formed. The first liquid material includes a first solute and a first solvent, or the first liquid material consists of the first solvent. The second liquid material includes a second solute and a second solvent. The second solute includes a nonlinear optical polymer. The concentration of the second solute in the second liquid material is higher than the concentration of the first solute in the first liquid material.