Hitachi Chemical Company, Ltd.

Hitachi, Ltd.

Nippon Oil Fats Co., Ltd.

Hitachi Chemical Company, Co.

Mitsuo Katayose

Seiji Tai

Nobuyuki Hayashi

Hideo Hagiwara

Takayuki Akimoto

Koichi Kamijima

Yoshii Morishita

Akio Mukoh

Matahiro Komuro

Yuichi Satsu

Setsuo Kobayashi

Shigeru Hayashida

Susumu Era

Shinya Nakamura

Hiroo Watanabe

Shigeaki Funyu

Masaharu Nakayama

Hideo Sawada

Motohiro Mitani

Tadashi Okamoto

Yoshinori Endou

Katsuyuki Masuda

Kazunori Yamamoto

Shinsuke Hagiwara

Masatoshi Yamaguchi

Eiichi Shinada

Masaki Yoshii

Fumio Furusawa

Seiichi Akagi

Ryoichi Ikezawa

Kazuyoshi Tendou

Takehiro Fukuyama

Naoki Nara

Yasushi Ooyama

Takaki Kashihara

Tomoya Masuda

Yuuki Yanagita

Takatoshi Ikeuchi

Koichi Kamajima

Ryouichi Ikezawa

Kayoko Nakamura

Hideyuki Chaki

Masashi Okoshi

Yoshihiro Mizukami

An adhesive agent comprising a condensation resin having a structural unit obtained by polycondensing a polymerizable monomer containing a monomer (A) having 2 or more carboxyl groups and a monomer (B) having 2 or more amino groups, and meeting at least one of the following (1) and (2):

Adhesive agent, adhesive material using the same, and method of use thereof

An R&#x2014;Fe&#x2014;B sintered magnet has a structure including main phase crystal grains and a grain boundary area surrounding the crystal grains. The sintered magnet includes fluorine and a specified metal element selected from elements belonging to Group 2 through Group 16 of periodic table excepting the rare earth element, carbon and boron. The fluorine has a higher concentration in a region closer to a magnet surface than in the center. The specified element also has a higher concentration in the region closer to the surface. The sintered magnet includes oxyfluoride containing carbon, Dy and the metal element in a grain boundary area region at a distance of 1 &#x3bc;m or greater from the magnet surface, and the carbon has a higher concentration than the concentration of the metal element in a region at a distance of 1 &#x3bc;m to 500 &#x3bc;m from the magnet surface.

Rotating machine with sintered magnet and method for producing sintered magnet

A curable resin which exhibits excellent heat resistance while including an extremely smaller amount of volatile component is disclosed, and an electronic component device having excellent reliability in heat resistance and the like which contains the above curable resin is provided. A curable resin obtained in reaction of at least one compound (a) selected from the group consisting of the silane compounds represented by the following Formula (I-1) and the partial condensates thereof with a phenol compound (b), comprising a remaining volatile component in an amount of 10 wt % or less with respect to the total weight of the curable resin is used as a curing agent.[Formula 1]RSiR&#x2003;&#x2003;(I-1) (Wherein, n denotes a number of 0 to 2; Rrepresent a hydrogen atom, or substituted or unsubstituted hydrocarbon groups having 1 to 18 carbon atoms; Rrepresent a halogen atom, a hydroxyl group, substituted or unsubstituted oxy groups, amino groups, and carbonyloxy groups having 1 to 18 carbon atoms; and two or more of Rand Rmay bind to each other to form a cyclic structure).

Curable resin, production method thereof, epoxy resin composition, and electronic device

A fluoride coating film formed with a fluoride-containing solution wherein a rare earth fluoride or an alkaline earth metal fluoride, in particular, fluoride of Pr, Nd, Dy, Tb and Ho, is swollen in a solvent comprising a major amount of an alcohol, and the solution is a colloidal solution in which the rare earth fluoride or the alkaline earth metal fluoride is dispersed homogeneously in the solvent comprising a major amount of an alcohol improves magnetic properties of NdFeB rare earth magnets including not only sintered magnets but also bonded magnets.

Treating agent for forming a fluoride coating film and method for forming a fluoride coating film

Disclosed is an encapsulation epoxy resin material containing an epoxy resin (A) and a curing agent (B). The epoxy resin (A) contains a compound represented by the general formula (I) below. The encapsulation epoxy resin material has excellent reliability in flame retardance, formability, reflow resistance, moisture resistance, high-temperature shelf characteristics and the like, and is suitably used for encapsulation of a VLSI. Also disclosed is an electronic component comprising an element encapsulated with such a material. (I) (In the general formula (I), Rs may be the same or different and respectively represent one selected from substituted or unsubstituted hydrocarbon groups having 1-12 carbon atoms and substituted or unsubstituted alkoxy groups having 1-12 carbon atoms; n represents an integer of 0-4; Rs may be the same or different and respectively represent one selected from substituted or unsubstituted hydrocarbon groups having 1-12 carbon atoms and substituted or unsubstituted alkoxy groups having 1-12 carbon atoms; and m represents an integer of 0-6.) 

Sealant epoxy-resin molding material, and electronic component device

An epoxy resin molding material for sealing which comprises an epoxy resin, an epoxy resin curing agent, and a pitch, as well as an electronic component comprising an element that is sealed with the molding material. This molding material exhibits favorable coloring properties, and even when used in packages with narrow distances between pads or wires, shorting defects caused by conductive materials can be prevented, as the molding material contains no conductive carbon black.

Epoxy resin molding material for sealing and electronic component

The invention relates to a curing accelerator for a curing resin obtained by reacting a phosphine compound (a) with a compound (b) having at least one halogen atom substituted on an aromatic ring and at least one proton atom which can be discharged, and subjecting the reaction product to dehydrohalogenation, a curing resin composition containing the curing accelerator, and an electronic component device having a device component encapsulated with the curing resin composition. The curing accelerator exhibits superior curability under moisture absorption, flow properties, reflow cracking resistance and high-temperature storage characteristics.

Phosphine-protonated haloaromatic compound accelerator with curing resin and curing agent

An encapsulating epoxy resin molding material, comprising (A) an epoxy resin, (B) a curing agent, and (C) an inorganic filler, wherein the inorganic filler (C) has an average particle size of 12 &#x3bc;m or less and a specific surface area of 3.0 m/g or more.

Epoxy resin molding material for sealing use and semiconductor device

Nitrogen compounds represented by formula (XXIa) or (XXIb); an epoxy resin hardening accelerator and a resin composition each containing any of the compounds; and an electronic part device containing an element encapsulated with the composition. In the formulae, R and R each represents hydrogen or a C monovalent organic group; R and R each represents a C divalnt organic group; R represents hydrogen or a C monovalent organic group; k is an integer of 0 to 2; and p is 0 or 1.

Compounds, hardening accelerator, resin composition, and electronic part device

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

A naphthalocyanine derivative of the formula: ##STR1## wherein M, Y, R.sup.1, k, l, m, n are as defined in the specification, is an effective substance for forming a recording layer on a substrate of an optical recording medium having high sensitivity with good properties.

Naphthalocyanine derivatives, production thereof, optical recording

Water-soluble tetraazaporphins with novel structure is suitable as a fluorochrome for labeling and provides a reagent usable for fluorescence analysis process.

A derivative of naphthalocyanine containing a perfluoroalkyl group and having a particular structure for ensuring excellent weather-proof properties, extremely high solubility in various solvents and capability of forming a film, and an optical recording medium prepared by using the derivative and capable of recording while using a focused beam of a semiconductor laser or the like. The derivative of naphthalocyanine containing a perfluoroalkyl group may be prepared by reacting a perfluoroalkanoyl peroxide having a particular structure with a naphthalocyanine.

Derivative of naphthalocyanine containing perfluoroalkyl group, process

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Hitachi, Japan

Mitsuo Katayose