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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.:

US 4826943 B1

PDFFull Text
Date of Patent:
May. 02, 1989

Filed:

Jul. 27, 1987

Negative resist material

Applicant:
Inventors:

Toshio Ito, Tokyo, JP;

Miwa Sakata, Tokyo, JP;

Yoshio Yamashima, Tokyo, JP;

Assignee:

Oki Electric Industry Co., Ltd., Tokyo, JP;

Attorney:

Wenderoth, Lind & Ponack

Primary Examiner:

Melvyn I Marquis

Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528 21 ; 528 32 ; 528 42 ; 556450 ; 556466 ;
Abstract

A negative resist material consists of poly (silsesquioxane) of weight average molecular weight 2000 or more represented by the general formula (1):

Find Patent Forward Citations

Ito, Toshio. (1989). Negative resist material (U.S. Patent No. 4826943). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4826943

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

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