Hitachi Chemical Company, Ltd.

Hitachi, Ltd.

Maxdem Incorporated

Hitachi Chemical Company, Co.

Sumation Co., Ltd.

Seiji Tai

Hiroyuki Tanaka

Koichi Kamijima

Nobuyuki Hayashi

Shigeru Hayashida

Mitsuo Katayose

Takeshi Nojiri

Hideo Hagiwara

Takayuki Akimoto

Seikichi Tanno

Naoki Kimura

Hajime Kakumaru

Hideyasu Tsuiki

Akio Mukoh

Setsuo Kobayashi

Susumu Era

Kazuya Satou

Noriyuki Kinjo

Yoshii Morishita

Toranosuke Ashizawa

Yasushi Iwakabe

Shunichi Numata

Satoyuki Nomura

Farshad J Motamedi

Ikuo Mukai

Yoshihiro Tsuda

Li-Sheng Wang

Hiroo Watanabe

Yoshiyuki Horibe

Yumiko Wada

Mariko Shimamura

Itsuo Watanabe

Shigeaki Funyuu

Yousuke Hoshi

Atsushi Kuwano

Kazuya Sato

Matthew L Marrocco

Nobuaki Takane

Isamu Moribe

Eiji Fujita

Chie Ohdoi

Hisanori Takusari

Mitsuo Yamada

Jun Taketatsu

Yongchao Liang

Yoshio Sato

Tsutomu Mamiya

Teruo Yoshida

Kazuyoshi Tendo

Koichi Kamajima

Makoto Murakami

Objects of the present invention are to provide a purification process that enables Pd and P to be removed effectively, and to provide an electroluminescent material and an electroluminescent device obtained by employing the process. The present invention relates to a process for purifying an electroluminescent material, the process involving treating, with an oxidizing agent and then with a column, an electroluminescent material that contains Pd and/or P as impurities so as to remove the Pd and/or P.

Purification process of electroluminescent material, electroluminescent material and electroluminescent device

High quantum yield luminescent monomers, oligomers, and polymers, comprising benzotriazole repeating units and derivatives thereof have been discovered and utilized in optical devices and components therefor, including electroluminescent devices, light emitting devices, photoluminescent devices, organic light emitting diodes (OLEDs), OLED displays, sensors, and the like. 

Luminescent compositions and their uses

Objects of the present invention are to provide a purification process that enables Pd to be removed effectively, and to provide an electroluminescent material and an electroluminescent device obtained by employing the process. The present invention relates to a process for purifying an electroluminescent material, the process involving treating, with a phosphorus-containing material, an electroluminescent material that contains Pd as an impurity so as to remove the Pd.

Method for purifying electroluminescent material, electroluminescent material and electroluminescent device

Disclosed are a phosphor pattern which comprises a substrate having unevenness and a phosphor layer formed on the inner surface of a concave portion of the substrate, wherein the phosphor pattern thickness ratio (x)/(y) satisfies a range of 0.1 to 1.5, where when the length from the bottom of the concave portion to the top of a convex portion is L (&mgr;m), (x) is a thickness of the phosphor pattern formed on an uneven wall surface at a position of 0.9&times;L from the bottom of the concave portion toward the top of the convex portion, and (y) is a thickness of the phosphor pattern formed on the uneven wall surface at a position of 0.4&times;L from the bottom of the concave portion toward the top of the convex portion, and processes for preparing the same.

Photosensitive element for preparing a phosphor pattern

A phosphor pattern for a field emission display panel (FED) is provided. The phosphor pattern is formed by a process whichh comprises the steps of: (I) forming (A) a photosensitive resin composition layer containing a phosphor on a substrate to which a conductive layer is formed; (II) selectively irradiating active light to (A) the photosensitive resin composition layer containing a phosphor, for forming a pattern; (III) selectively removing (A) the photosensitive resin composition layer to which active light has been selectively irradiated by development, to form the pattern; and (IV) calcining the pattern to remove an unnecessary portion, to form the phosphor pattern. Also provided ar this process for forming the phosphor pattern, a photosensitive element for a FED and a field emission display panel. In forming the layer on the substrate, the photosensitive resin composition layer can be provided as a layer of a photosensitive element, and the element provided on the substrate such that the layer contacts the substrate.

PROCESS FOR PREPARING PHOSPHOR PATTERN FOR FIELD EMISSION DISPLAY PANEL, PHOTOSENSITIVE ELEMENT FOR FIELD EMISSION DISPLAY PANEL, PHOSPHOR PATTERN FOR FIELD EMISSION DISPLAY PANEL AND FIELD DISPLAY PANEL

FLUORESCENT PATTERN, PROCESS FOR PREPARING THE SAME, ORGANIC ALKALI DEVELOPING SOLUTION FOR FORMING THE SAME, EMULSION DEVELOPING SOLUTION FOR FORMING THE SAME AND BACK PLATE FOR PLASMA DISPLAY USING THE SAME

Phosphor pattern, processes for preparing the same and photosensitive element to be used for the same

Photosensitive resin composition, photosensitive film and process for preparing fluorescent pattern using the same

Fluorescent pattern, process for preparing the same, organic alkali developing solution for forming the same, emulsion developing solution for forming the same and back plate for plasma display using the same

Process for preparing phosphor pattern, phosphor pattern prepared the same and back plate for plasma display panel

Disclosed are a photosensitive resin composition which comprises:

Photosensitive resin composition, photosensitive film and process for

An antifouling coating composition comprising a biodegradable polymer (A) comprising one or more constituent units (a) capable of imparting biodegradability such as derived from an alkyl vinyl ether, and one or more constituent units (b) derived from e.g. maleic anhydride, itaconic anhydride, or an unsaturated dicarboxylic acid monoester, and an antifouling agent is excellent in coating consuming properties, antifouling performance, biodegradability and other properties.

Coating varnish composition and antifouling coating composition

Tetraazaporphins represented by the general formula (I): ##STR1## provide substances derived from organisms (e.g. antigens, antibodies, nucleotides, etc.) which have been labeled with a fluorochrome for labeling comprising the tetraazaporphin; reagents comprising any of the labeled substances which can be utilized for assay of various antigens, drugs, DNAs and the like; and analysis of the base sequence of DNA. Fluorescence analysis can be carried out using the labeled substances.

Water-soluble tetraazaporphins and fluorochrome for labeling

An information recording medium has a recording layer which comprises a composition containing:

Information recording medium having recording layer with organic polymer

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Hitachi, Japan

Seiji Tai