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:
Jun. 04, 1991
Filed:
May. 19, 1989
Toshimasa Miyazaki, Yokohama, JP;
Yoji Uzawa, Hachioji, JP;
Kazuyoshi Okawa, Hachioji, JP;
Hiroshi Kawashima, Ebina, JP;
Kazumasa Moriya, Urawa, JP;
Yoshitaka Murakawa, Fuchu, JP;
Toshimitsu Kumagai, Kawasaki, JP;
Akihiro Nakamura, Kawasaki, JP;
Motohiko Itoh, Tokyo, JP;
Tomoyuki Kashiwazaki, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A linear motor car system including a horizontal conveyance path, a vertical conveyance path, and a curved conveyance path connected between the horizontal and vertical conveyance paths. A controller in the linear motor car system drives a carrier so that the cariier can ascend smoothly up the curved and vertical conveyance paths with the minimum driving energy and without accidentally falling back down the vertical path.