Nihon Parkerizing Co., Ltd.

Sharp Kabushiki Kaisha Corporation

Sony Corporation

Asahi Kasei Kabushiki Kaisha

Masanobu Tanaka

Kazuhiko Mori

Mitsuru Nakamura

Junichiro Nakayama

Atsushi Serita

Shunsuke Nonaka

Kyoko Machioka

Kosuke Hatasaki

Masumi Hara

Yoshihiko Nishizawa

Yuji Mera

Shogo Ume

A plasma information display element of the present invention includes a first substrate; a second substrate opposing the first substrate; a plurality of barrier ribs provided between the first substrate and the second substrate; and a plurality of discharge channels defined by the first substrate, the second substrate and the barrier ribs. The plasma information display element further includes: an anode and a cathode provided on one side of the first substrate that is closer to the second substrate; and a protective layer provided so as to cover the anode and the cathode, wherein the protective layer is a layer that contains (220)-oriented MgO and (200)-oriented MgO.

Plasma information display element and method for producing the same

A neutral titanium dioxide colloid sol having a high stability in a neutral range and capable of forming a colorless transparent coating even when dried at room temperature is produced by mixing an acid titanium dioxide sol comprising 50 to 100 parts by weight of titanium dioxide colloidal particles and 5 to 50 parts by weight of a chelating agent for titanium ions with 1 to 50 parts by weight of an alkaline substance comprising at least one of alkali metal compounds and amine compounds, and optionally by adjusting the pH value of the liquid mixture to 5 to 10, or adjusting the pH value of the liquid mixture to 6 to 10, and then applying a deionization treatment to the mixture to thereby charge the titanium dioxide colloidal particles with negative electricity.

Titanium oxide colloidal sol and process for the preparation thereof

A hydrophilic, photocatalytic, transparent and adhesive aqueous TiO.sub.2 ceramic paint comprises orthotitanic acid, Ti.sup.4+ ions and/or peroxotitanic acid and crystalline TiO.sub.2 colloidal particles with an average particle size of 0.001 to 0.2 .mu.m, and is produced by applying (a) semipermeable membrane dialysis, (b) semipermeable membrane electrodialysis or (c) ion-exchange treatment to an aqueous Ti salt solution to thereby hydrolyze and convert at least a portion of the Ti salt to the orthotitanic acid and the TiO.sub.2 colloidal particles and simultaneously to remove impurity ions from the aqueous solution, or by heating the Ti salt solution at 50.degree. to 100.degree. C. after or without mixing an alkali metal hydroxide or ammonia to the Ti salt solution, and then applying the treatment (a), (b) or (c) to the resultant solution, or by mixing an alkali metal hydroxide or ammonia to the heated Ti salt solution followed by collecting a resultant precipitate and dispersing the precipitate in water or an aqueous solution of a peroxide compound or complexing agent.

Titanium dioxide ceramic paint and methods of producing same

Growing community of inventors

Tokyo, Japan

Masanobu Tanaka