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:
Sep. 08, 1998
Filed:
Dec. 17, 1996
Applicant:
Inventors:
Ryu Oi, Yokohama, JP;
Kazuhiro Seino, Yokohama, JP;
Yoriaki Matsuzaki, Yokohama, JP;
Yuko Mochizuki, Nagoya, JP;
Keisuke Takuma, Yokohama, JP;
Shin Fukuda, Yokohama, JP;
Yojiro Kumagae, Kawachinagano, JP;
Assignees:
Mitsui Chemicals, Inc., Tokyo, JP;
Yamamoto Chemicals, Inc., Osaka-fu, JP;
Primary Examiner:
Int. Cl.
CPC ...
F21V / ; G02B / ; H01J / ;
U.S. Cl.
CPC ...
252587 ; 359350 ; 359885 ; 31511121 ;
Abstract
A plasma display filter for efficiently cutting off near infrared rays radiated from a plasma display so that malfunction of electronic equipment located around the display making use of near infrared light can be avoided. The filter contains in a base material at least one near infrared ray absorbing compound having a maximum absorption wavelength at 800 to 1,200 nm.