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:
Dec. 08, 1992
Filed:
Oct. 23, 1991
Tohru Kasanami, Kyoto, JP;
Shigeo Nakatsuji, Kyoto, JP;
Mitsuro Hamuro, Kyoto, JP;
Naoto Kimura, Kyoto, JP;
Abstract
A screen printing method comprises an aligning process for fixing a master plate (10) to a fixing frame (20) in aligned relation thereto, an exposure process of exposing a screen printing plate (50) through the master plate (10) fixed to the fixing frame (20), a developing process for developing the thus exposed screen printing plate (50), and a printing process for printing a workpiece (80) by using the thus developed screen printing plate (50). In the aligning process, the positioning pins (22a, 22b, 22c) of the fixing frame (20) abut against the positioning protuberances (62a, 62b, 62c) of a fixing block (61). In the exposure process, the positioning pins (22a, 22b, 22c) of the fixing frame (20) abut against the positioning protuberances (32a, 32b, 32c) of a positioning block (3), while the positioning pins (52a, 52b, 52c) of the printing plate (51) holding the screen printing plate (50) abut against the positioning protuberances (62a, 62b, 62c) of the fixing block (61). In the printing process, the positioning pins (52a, 52b, 52c) of the plate frame (51) holding the screen printing plate (50) abut against the positioning protuberances (72a, 72b, 72c) of a fixing block (71). With this arrangement, the aligned state established by the aligning process which is performed first of all is maintained throughout until the last printing process is completed.