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:
Jul. 08, 2025
Filed:
Oct. 04, 2022
Komatsu Ltd., Tokyo, JP;
Taku Matsuo, Tokyo, JP;
Nobuhito Yasuta, Tokyo, JP;
Masaki Shiohara, Tokyo, JP;
Michihiro Aida, Tokyo, JP;
KOMATSU LTD., Tokyo, JP;
Abstract
A multi-speed transmission includes: an input member; an output member; first to fourth planetary gear sets arranged in order in an axial direction from the input member toward the output member and each including a sun gear, a planetary carrier and a ring gear; first to third clutches; and first to third brakes. Each of the first to third clutches and the first to third brakes is operatively coupled to at least one planetary gear set of the planetary gear sets, and selectively engageable to produce a set of different gear ratios including at least ten forward gear ratios and at least two reverse gear ratios between the input member and the output member. The first clutch selectively couples the third sun gear of the third planetary gear set to the fourth planetary carrier of the fourth planetary gear set.