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 8048493 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 01, 2011

Filed:

Jun. 29, 2007
Applicants:

Takeshi Habu, Hachioji, JP;

Takayuki Sasaki, Hachioji, JP;

Inventors:

Takeshi Habu, Hachioji, JP;

Takayuki Sasaki, Hachioji, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05H 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An objective is to provide a method of forming a piezoelectric resin film produced at low cost, and specifically to provide the method in which a large-area piezoelectric resin film is produced at low cost, and at reduced investment in facilities. Disclosed is a method of forming a piezoelectric resin film possessing the steps of polymerizing a monomer at a temperature of 5-60° C. to obtain a resin having a polymerization degree of 4-300, and a polarity group possessing one bond selected from a urea bond, an ester bond, an amide bond and an imide bond, coating the resin onto a substrate; and further polymerizing the resin at 70-250° C. while conducting a poling treatment.


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Habu, Takeshi. (2011). Method of forming piezoelectric resin film (U.S. Patent No. 8048493). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8048493

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