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:
Mar. 17, 1987

Filed:

Mar. 06, 1985
Applicant:
Inventor:

Masao Totsuka, Ohmiya, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G21K / ;
U.S. Cl.
CPC ...
2504421 ; 2504922 ; 378 34 ;
Abstract

An apparatus wherein a first thin member and a second thin member, the first thin member bearing a pattern, and the second thin member is exposed to the pattern of the first thin member. It includes a vacuum line for discharging a gas existing between the first thin member and the second thin member without close-contact therebetween, and a device for bringing the first and second members into proximity close-contact with each other after said discharging means discharges the gas from between the first thin member and the second thin member.


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Totsuka, Masao. (1987). Contact exposure apparatus (U.S. Patent No. 4651009). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4651009

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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