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:
May. 01, 1979
Filed:
Nov. 18, 1977
Katuzo Kanda, Oisomachi, JP;
Noboru Kotera, Hatano, JP;
Seiji Murakami, Minami-ashigara, JP;
Thihiro Yoshida, Hatano, JP;
Shusaku Eguchi, Minami-ashigara, JP;
Toshiaki Hatsumi, Odawara, JP;
Kazuhito Iwasaki, Odawara, JP;
Isao Iwamoto, Hiratsuka, JP;
Dai Nippon Toryo Co., Ltd., Osaka, JP;
Abstract
On the surface of a phosphor, pigment particles are uniformly adhered by a layer of a gelatin-gum arabic mixture. A process for manufacturing such a pigment coated phosphor includes the steps of preparing an aqueous solution of gelatin and an aqueous solution of gum arabic, allowing the phosphor to disperse homogeneously into one of these aqueous solutions, allowing the pigment particles to disperse homogeneously into the other aqueous solution, and mixing the so obtained phosphor and pigment dispersions.