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:
May. 01, 2007
Filed:
Feb. 21, 2003
Katsumi Kimura, Tokyo, JP;
Toshio Miwa, Tokyo, JP;
Michio Takashima, Tokyo, JP;
Takeshi Usami, Tokyo, JP;
Kazuhiko Sugiyama, Tokyo, JP;
Katsumi Kimura, Tokyo, JP;
Toshio Miwa, Tokyo, JP;
Michio Takashima, Tokyo, JP;
Takeshi Usami, Tokyo, JP;
Kazuhiko Sugiyama, Tokyo, JP;
Ebara Corporation, Tokyo, JP;
Abstract
A differential planetary gear apparatus has a single-pinion-type structure in which one planetary gear () is arranged in a radial direction and one or more planetary gears () are arranged in a circumferential direction in a region between a sun gear () and a ring gear (), a drive source (), a speed-change motive source (), and a driven unit () are disposed at any one of an input side (I), an output side (O), and a speed-change side (T). The speed-change motive source () includes an electric motor.