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.

Date of Patent:
Nov. 25, 2025

Filed:

Feb. 22, 2021
Applicant:

Yamaha Robotics Co., Ltd., Tokyo, JP;

Inventor:

Yuichiro Noguchi, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/67 (2006.01); G01B 21/08 (2006.01); G01B 21/24 (2006.01);
U.S. Cl.
CPC ...
G01B 21/24 (2013.01); G01B 21/08 (2013.01);
Abstract

In this method for detecting a degree of parallelism of a mounting device: a triangular pin is arranged at a point A on a placement surface of a stage; a mounting head is lowered, and a height of the mounting head when a holding surface comes into contact with a tip end of the triangular pin is detected using an encoder, after which the triangular pin is moved to a point B and the mounting head is lowered; the height of the mounting head when the holding surface comes into contact with the tip end of the triangular pin is detected by the encoder; and the degree of parallelism between the placement surface of the stage and the holding surface of the mounting head is calculated on the basis of the detected heights at point A and point B.


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