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. 03, 2020
Filed:
Apr. 27, 2017
Applicant:
Yonex Kabushiki Kaisha, Tokyo, JP;
Inventors:
Takumi Sakaguchi, Tokyo, JP;
Shinichiro Chiba, Tokyo, JP;
Assignee:
YONEX KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B 67/18 (2016.01); A63B 67/19 (2016.01); A63B 67/187 (2016.01); A63B 102/04 (2015.01);
U.S. Cl.
CPC ...
A63B 67/19 (2016.01); A63B 67/187 (2016.01); A63B 2102/04 (2015.10); A63B 2209/00 (2013.01);
Abstract
An artificial shuttlecock feather for implanting in a circular ring shape into a base of a shuttlecock, the artificial feather includes: a vane section; and a rachis section supporting the vane section, the rachis section being formed from a material having a Charpy impact strength of 30 kJ/mor greater and a flexural modulus of 4 GPa or greater, and preferably having a Charpy impact strength of 36 kJ/mor greater and a flexural modulus of 4.7 GPa or greater.