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. 30, 2025
Filed:
Oct. 26, 2023
Applicant:
Subaru Corporation, Tokyo, JP;
Inventors:
Assignee:
SUBARU CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64C 29/00 (2006.01); B64C 39/06 (2006.01); B64D 27/357 (2024.01);
U.S. Cl.
CPC ...
B64C 29/0016 (2013.01); B64C 39/064 (2013.01); B64D 27/357 (2024.01);
Abstract
A rotorcraft includes a fuselage, rotors and circular wings. The rotors are attached to the fuselage. The rotors are attached to the fuselage. The circular wings are disposed under the rotors respectively. Upper surfaces of the circular wings have annular curved surfaces and thereby are convex upward respectively. The circular wings cause Coanda effects by the upper surfaces respectively. First lift is generated by rotating the rotors. Second lift is generated by the Coanda effects by the circular wings. Third lift is generated by air jets deflected downward along the upper surfaces of the circular wings respectively.