Asahi Glass Company, Limited

Other

Seimi Chemical Co., Ltd.

Kazuo Sunahara

Yoshihisa Beppu

Takashi Kimura

Manabu Suhara

Satoshi Kashiwabara

Yasuhiko Ohsawa

Tatsuhiro Fukuzawa

Fumio Munakata

Hiroyuki Tomonaga

Takuya Mihara

Naoki Okahata

Yuuji Tanjo

Tomohiro Sakai

Kazunari Watanabe

Yumiko Aoki

Mitsuo Takabatake

Katsuaki Miyatani

Kumiko Takahashi

Tsuneo Ichimatsu

Katumasa Nakahara

Naosi Irisawa

Yuichi Yamamoto

Daisuke Kobayashi

Akira Mitsui

Kiyoshi Matsumoto

Atsushi Hayashi

Tsutomu Katoh

Naoshi Saito

Yuzuru Tanabe

Hiroshi Usui

Iori Yoshida

Yasuhiro Sanada

Hirokazu Kodaira

Hiromichi Nishimura

Yoshinori Kon

Katsuyuki Tsugita

Osamu Miyahara

Sumihisa Yamaguchi

Katsuhiko Takeda

Tomoaki Okada

Megumi Yukawa

Mitsuru Horie

Sachie Shinmaru

Naoshi Saitoh

Makoto Noshiro

To provide a process for producing ceria-zirconia solid solution crystal fine particles having high crystallinity, being excellent in uniformity of composition and particle size, having a small particle size and a high specific surface area and being excellent in heat resistance, and such solid solution crystal fine particles. A process comprises a step of obtaining a melt containing, as represented by mol % based on oxides, from 5 to 50% of (ZrO+CeO), from 10 to 60% of RO (wherein R is at least one member selected from the group consisting of Mg, Ca, Sr and Ba) and from 25 to 70% of BO, a step of quenching the melt to obtain an amorphous material, a step of heating the amorphous material at a temperature of from 550 to 1000&#xb0; C. to precipitate a ceria-zirconia solid solution crystal in the amorphous material, and a step of separating components other than the ceria-zirconia solid solution crystal from the obtained precipitates to obtain the ceria-zirconia solid solution crystal fine particles, in this order.

Ceria-zirconia solid solution crystal fine particles and their production process

Provided is a process for readily producing fine particles of a solid solution having a small particle size, comprising a solid solution of zirconia, ceria and a rare earth oxide in a desired composition, and being highly crystalline. The process for producing the fine particles of the solid solution comprises the following steps in the order named: obtaining a melt comprising, in terms of mol % on an oxide basis, from 5 to 50% ZrO, CeOand REO(where RE is at least one member selected from rare earth elements other than Ce) in total, from 10 to 50% RO (where R is at least one member selected from the group consisting of Mg, Ca, Sr, Ba and Zn), and from 30 to 75% BO; quenching the melt to obtain an amorphous material; heating the amorphous material to obtain precipitates containing crystals of a solid solution with ZrO, CeOand REO; and separating the crystals of the solid solution from the precipitates to obtain fine particles of the solid solution.

Process for producing fine particles of solid solution

Provided is a process for producing a glass plate with a conductive printed wire, which does not require a screen plate for each model, facilitates adjustments for desired heat generation performance or antenna performance, has an excellent adhesion to a glass plate surface, and minimizes surface roughness. The process for producing a glass plate with a conductive printed wire is characterized in that a laminate comprising a layer obtained by electro printing a first conductive toner having a number standard average particle size (D) of 10 &#x3bc;m&#x3c;D&#x2266;50 &#x3bc;m and a layer obtained by electro printing a second conductive toner having a particle size (D) of 5 &#x3bc;m&#x2266;D&#x2266;10 &#x3bc;m is formed on a surface of a glass plate and the glass plate is heated to fire the toners to thereby form a conductive printed wire having a predetermined pattern on the surface of the glass plate.

Method for producing a glass plate with a conductive printed wire and glass plate with a conductive printed wire

A color toner for electro printing, which comprises from 10 to 50 parts by mass of fine inorganic pigment particles, from 5 to 40 parts by mass of a heat decomposable binder resin having an acid value of at least 5, and from 40 to 85 parts by mass of glass frit, per 100 parts by mass of the total solid content of the toner.

Color toner having inorganic pigment particles, glass frit, and heat decomposable binder for making a ceramic color print

A method for producing a glass substrate for a magnetic disk by polishing a circular glass plate, which comprises a step of polishing the principal plane of the circular glass plate by using a slurry containing a CeOcrystal powder, the CeOcrystal powder being obtained in such a manner that a melt containing CeOis quenched to obtain an amorphous material, and the amorphous material is subjected to heat treatment to obtain a CeOcrystals-precipitated amorphous material, which is subjected to acid treatment to separate and extract the CeOcrystal powder from the CeOcrystals-precipitated amorphous material.

Method for producing glass substrate for magnetic disk, and magnetic disk

An infrared shielding film-coated glass plate comprising a glass substrate and an infrared shielding film formed thereon, wherein the infrared shielding film comprises fine ITO particles having an average primary particle diameter of at most 100 nm dispersed in a matrix containing silicon oxide as the main component and containing nitrogen in an amount of at least 2 at % based on Si and has a film thickness of from 200 to 3,000 nm.

Infrared shielding film-coated glass plate and process for its production

Toners having toner matrix particles having conductive fine particles, a heat decomposable binder resin and glass frit, and heat decomposable organic resin fine particles attached on the surface of the toner matrix particles. The heat decomposition temperature of the organic resin in the heat decomposable organic resin fine particles is lower than the heat decomposition temperature of the heat decomposable binder resin.

Toner for electronic printing, and process for producing glass plate having electric conductor pattern

To provide a process for producing a glass plate having an electric conductor pattern excellent in adhesion to the surface of the glass plate, whereby it is not required to have a screen ready for every model and adjustment to desired electric heating performance and antenna performance is easy, and a developer therefor. A developer for electronic printing, characterized in that the ratio of F/Fis at least 2.5, where Fis the adhesive force acting between one toner particle containing conductive fine particles and one carrier, and Fis the adhesive force acting between one toner particle containing conductive fine particles and a photoconductor. A process for producing a glass plate is having an electric conductor pattern, which comprises a step of using such a developer for electronic printing and forming a pattern of a toner on a surface of a glass plate by an electronic printing system, and a step of heating the glass plate having the pattern of the toner formed on its surface, at a predetermined temperature to convert the pattern of the toner to a pattern of an electric conductor.

Developer for electronic printing, and process for producing glass plate having electric conductor pattern

To provide a process for producing CeOfine particles having high crystallinity, being excellent in uniformity of composition and particle size and having a small particle size, and a polishing slurry containing such fine particles. A process for producing CeOfine particles, which comprises a step of obtaining a melt containing, as represented by mol % based on oxides, from 5 to 50% of CeO, from 10 to 50% of RO (wherein R is at least one member selected from the group consisting of Mg, Ca, Sr and Ba) and from 30 to 75% of BO, a step of quenching the melt to obtain an amorphous material, a step of precipitating CeOcrystals from the amorphous material, and a step of separating the CeOcrystals from the obtained crystallized product, in this order. A polishing slurry containing from 0.1 to 20 mass % of such fine particles.

[object Object]

A composite oxide suitable for an active material of a positive electrode for a lithium secondary cell which can be used in a wide range of voltage, has a large electric capacity and excellent low temperature performance and is excellent in the durability for charge-discharge cycles and highly safe, a process for its production, and a positive electrode and a cell employing it, are presented. The composite oxide is a lithium-cobalt composite oxide which is represented by the formula LiCoMO, (wherein 0&#x2266;x&#x2266;0.02 and M is at least one member selected from the group consisting of Ta, Ti, Nb, Zr and Hf), and which has a half-width of the diffraction peak for (110) face at 2&#x3b8;=66.5&#xb1;1&#xb0;, of from 0.070 to 0.180&#xb0;, as measured by the X-ray diffraction using CuKas a ray source.

Lithium-cobalt composite oxide, process for its production, positive electrode for lithium secondary cell employing it, and lithium secondary cell

It is an object to provide fine particles of bismuth titanate having excellent dielectric characteristics, high crystallinity and a small particle diameter, and a process for their production. The object is accomplished by a process which comprises a step of obtaining a melt comprising, as represented by mol % based on oxides, from 23 to 72% of BiO, from 4 to 64% of TiOand from 6 to 50% of BO, a step of quickly quenching this melt to obtain an amorphous material, a step of crystallization of bismuth titanate crystals from the above amorphous material, and a step of separating the bismuth titanate crystals from the obtained crystallized material, in this order.

Process for producing fine particles of bismuth titanate

To provide a composition for forming a dielectric layer excellent in dielectric constant and withstand voltage properties, a MIM capacitor and a process for its production. A composition for forming a dielectric layer, which comprises fine particles of perovskite type dielectric crystal, glass frit, and a hydrolysable silicon compound or its oligomer, and a MIM capacitor comprising a substrate, and a bottom electrode layer, a dielectric layer having a structure such that fine particles of perovskite type dielectric crystal are dispersed in a silicon oxide matrix containing glass-forming ions and a top electrode, formed on the substrate in this order.

Composition for forming dielectric layer, MIM capacitor and process for its production

It is an object to provide a liquid composition for forming a thin film, with which a ferroelectric thin film having excellent characteristics can be prepared even by baking at a low temperature, and a process for producing a ferroelectric thin film using it. The above object is achieved by use of a liquid composition for forming a ferroelectric thin film, characterized in that in a liquid medium, ferroelectric oxide particles being plate or needle crystals, which are represented by the formula ABO3 (wherein A is at least one member selected from the group consisting of Ba, Sr, Ca, Pb, La, Kand Na, and B is at least one member selected from the group consisting of Ti, Zr, Nb, Taand Fe) and have a Perovskite structure and which have an average primary particle size of at most 100 nm and an aspect ratio of at least 2, are dispersed, and a soluble metal compound which forms a ferroelectric oxide by heating, is dissolved.

Liquid composition for forming ferroelectric thin film and process for producing ferroelectric thin film

The present invention provides a lithium-transition metal composite oxide having a large volume capacity density, high safety, excellent coating uniformity, excellent charge/discharge cycle durability and excellent low temperature characteristics, and suitable as a positive electrode active material for a lithium secondary cell. A lithium-transition metal composite oxide which is represented by the formula LiMNO(wherein 0.2&#x2266;x&#x2266;1.2, 0&#x2266;y&#x2266;0.7, M is a transition metal element, and N is a transition metal element other than M or an alkaline earth metal element), wherein in the distribution curve of the cumulative volume particle size of said lithium composite oxide, the inclination of the curve at a cumulative volume fraction of 20% and 80% are at most 9%/&#x3bc;m and at least 3%/&#x3bc;m, respectively, and the average particle size is from 3 to 20 &#x3bc;m.

Lithium-transition metal composite oxide

A positive electrode active material for a nonaqueous electrolyte secondary battery includes at least a lithium-containing manganese layered composite oxide represented by the formula Li A MnO , or the formula Li A Mn M O . The lithium-containing manganese composite oxide includes a lithium substitute metal A, such as Na, K, Ag, substituting for part of Li. The lithium substitution quantity x may be in the range of 0.03<x&lE;0.2.

Positive electrode material and battery for nonaquous electrolyte secondary battery

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Yokohama, Japan

Kazuo Sunahara