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:
Dec. 02, 2025

Filed:

Nov. 26, 2021
Applicant:

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

Inventor:

Masahiko Fujisawa, Nagano, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 33/22 (2006.01); B29C 33/20 (2006.01); H01L 21/67 (2006.01);
U.S. Cl.
CPC ...
B29C 33/22 (2013.01); B29C 33/20 (2013.01);
Abstract

A mold clamping device is provided with a movable platen that moves along a tie bar; a driving mechanism having multiple raising-lowering mechanisms, including a first raising-lowering mechanism and a second raising-lowering mechanism, and configured to be capable of introducing a difference so that a first portion of the movable platen corresponding to the first raising-lowering mechanism is set at a higher position or a lower position than a second portion of the movable platen corresponding to the second raising-lowering mechanism, the driving mechanism moving the movable platen; and a connecting structure, connecting the driving mechanism to the movable platen. The connecting structure is configured as a stopper that restricts movement of the movable platen so that the difference does not become greater than a prescribed value.


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