Kasei Optonix, Ltd.

Tomohiro Miyazaki

Hideo Tono

Masaru Naito

Susumu Omatoi

Hitoshi Tanaka

Noboru Matsuhisa

Goro Matsumoto

A color cathode-ray tube having a fluorescent screen of red-, blue- and green-emitting phosphors as image elements of a fluorescent layer, wherein at least one of said phosphors is coated with a double oxide of zinc and aluminum.

Method for producing surface treated phosphor particles

Color cathode-ray tube, and surface-treated phosphor and method for its

A phosphor comprising a phosphor and zinc oxide formed in a suspension of the phosphor and attached to the surface of the phosphor.

Method for treating the surface of a phosphor

Phosphor having zinc oxide attached to its surface

A phosphor having formed on its surface generally spherical or semi-spherical surface treating substance composed of silicon dioxide, an aluminum compound and a zinc compound, at least 70% by weight of the surface treating substance being in the form of particles having an average particle size within a range of from 60 to 300 m.mu.m.

Phosphor

Growing community of inventors

Odawara, Japan

Tomohiro Miyazaki