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:
Dec. 26, 1989
Filed:
Jun. 28, 1988
Applicant:
Inventors:
Keizi Ichinomiya, Anan, JP;
Kouichi Okada, Anan, JP;
Yuji Itsuki, Anan, JP;
Kaname Tsuchikura, Anan, JP;
Assignee:
Nichia Kagaku Kogyo K.K., Tokushima, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
313487 ; 313485 ; 2523 / ;
Abstract
A light-emitting composition includes a phosphor material, and an inorganic white powder material. The inorganic powder material is doped with a dopant of Ti, Ce, Cd, Cs, Sb, K, Sc, Zr, Ge, Al, Lu, La, Gd, Tb, B and/or Si. The light-emitting composition can be applied to the inner surface of a bulb of a fluorescent lamp.
Ichinomiya, Keizi. (1989). Light-emitting composition and fluorescent lamp (U.S. Patent No. 4890033). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4890033
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile