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:
Jan. 30, 2001
Filed:
Aug. 31, 1999
Applicant:
Inventors:
Sang Youl Yoon, Kyungsangbuk-do, KR;
Ho Seok Shon, Seoul, KR;
Assignee:
Orion Electric Co., Ltd., Kyungsangbuk-Do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 5/04 ;
U.S. Cl.
CPC ...
G03G 5/04 ;
Abstract
Disclosed are a solution for making a photoconductive layer in dry-electrophotographically manufacturing a screen of a cathode ray tube and a method using solution. By the solution, the photoconductive layer can be stored for long time and reveals a superior photoconductivity. The solution has tetraphenyl ethylene derivatives as an electron donor material responsive to the ultraviolet rays, which has structural formula (I), in which R is H, CH,, C,H,, C,H,, OCH,, OC,H,, OC,H,, or COCH,, on a condition of excepting a case where R,═R,═R,═R,═H.