Title:
PRODUCTION PROCESS ANALYSIS METHOD
Document Type and Number:
WIPO Patent Application WO/2018/078903
Kind Code:
A1
Abstract:
[Problem] To identify a factor that causes variations in the quality of products manufactured or services provided using a complicated production process including an automation step by machine equipment, a manual operation step by an operator, and the like, and provide a production process analysis method for stabilizing the quality of the products or services.
[Solution] A production process analysis method includes: a step S13 for identifying a good lot included in a group determined to be the most excellent with respect to each of a plurality of states constituting a production process; a step S18 for classifying, in the case where at least one good lot is not shared among the plurality of states, the plurality of states into an arbitrarily selected selection state and other non-selection states, and determining again a highest-ranking group in the non-selection state that includes the good lot in the selection state as the most excellent group; and a step S19 for identifying factors P1-5 that characterize the group determined as the most excellent.
Inventors:
KAWANO KOUJI (JP)
ISHIKAWA AKIO (JP)
ISHIKAWA AKIO (JP)
Application Number:
PCT/JP2017/008682
Publication Date:
May 03, 2018
Filing Date:
March 06, 2017
Export Citation:
Assignee:
MITSUBISHI CHEM ENG CORP (JP)
International Classes:
G05B19/418
Foreign References:
| JP2016177794A | 2016-10-06 | |||
| JP2005284650A | 2005-10-13 |
Attorney, Agent or Firm:
SHIMIZU Takamitsu (JP)
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