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:
Nov. 12, 2024
Filed:
Oct. 02, 2020
Applicant:
Nexfi Technology Inc., Suita, JP;
Inventors:
Takashi Nakamura, Suita, JP;
Satoshi Tanimoto, Suita, JP;
Assignee:
NexFi Technology Inc., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
H02J 15/00 (2006.01); F03G 3/08 (2006.01); H02K 7/02 (2006.01);
U.S. Cl.
CPC ...
H02J 15/007 (2020.01); F03G 3/08 (2013.01); H02K 7/025 (2013.01);
Abstract
The present invention provides a flywheel having a high energy density, a designing method which facilitates the designing of the flywheel, and an energy storage system which can achieve both an increase in storage energy and a reduction in weight by adopting the flywheel. A flywheel A includes: a low-density diskhaving a low average density; and a high-density outer edge sectionwhich is provided on the outer circumference of the low-density disk, and has an average density higher than that of the low-density disk