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:
Feb. 09, 2010
Filed:
Feb. 27, 2007
Hiroaki Izumi, Tokyo, JP;
Katsuhiko Takahashi, Tokyo, JP;
Hiroaki Izumi, Tokyo, JP;
Katsuhiko Takahashi, Tokyo, JP;
Elpida Memory, Inc., Tokyo, JP;
Abstract
Processing apparatuses A, B, C, and D are included in a job-shop production line, and processto processare performed by the processing apparatuses A, B, C, B, D, and B, respectively. The processing apparatus B is repeatedly used in process, process, and process; therefore, these processes are key processes. Based on the key processes, processto processare classified into a plurality of groups, and the number of in-process products of each of the groups is counted by a counting unit. According to this, a determining unit determines priority orders of the key processes such that a higher priority is given to a key process in a group having a large number of the in-process products. Thus, it becomes possible to perform determination of the priority orders further according to an actual situation, and to improve production efficiency.