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:
Mar. 10, 1987
Filed:
May. 30, 1984
Applicant:
Inventors:
Chang-Shui Fang, Shan Dong, CN;
Yao Xi, Shaan-xi, CN;
Zhi-Xiong Chen, Wuhan, CN;
Amar S Bhalla, State College, PA (US);
Leslie E Cross, State College, PA (US);
Assignee:
Research Corporation, Tucson, AZ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ; C09K / ; H01L / ;
U.S. Cl.
CPC ...
252-1 ; 313388 ; 310306 ; 136213 ; 1362361 ;
Abstract
Pyroelectric crystals having relatively high figures of merit (p/K) of the order of 1.8 or more are provided. They are preferably prepared by doping alanine substituted triglycine sulfate crystals with phosphorous and/or arsenic.