Nitto-denko Corporation

Panasonic Corporation

Sanyo Electric Co., Ltd.

Panasonic Intellectual Property Mgmt Co., Ltd.

Tsutomu Nishioka

Hisataka Ito

Yasunari Ooyabu

Toshiki Naito

Kazuhiro Ikemura

Shusaku Goto

Masaharu Miyahisa

Hidekazu Hiratsuka

Kaoru Nagata

Tatsuhiko Suzuki

Hideyuki Kumakiri

Yoshiki Ohsawa

Takeshi Kasamatsu

Takashi Taniguchi

Yasutaka Kogetsu

Sadahito Misumi

Toshitsugu Hosokawa

Noriyuki Uchida

Hideyuki Usui

Kazumasa Igarashi

Satoshi Ito

Megumu Nagasawa

Shinya Akizuki

Katsumi Shimada

Seiichi Kato

Tadaaki Harada

Takahiro Uchida

Shinichi Ohizumi

Koki Inoue

Takuya Eto

Michio Komoto

Minoru Yamane

Hideto Kimura

Haruo Tabata

A positive electrode active material for nonaqueous electrolyte secondary batteries, which has high energy density and excellent cycle characteristics. A positive electrode active material for nonaqueous electrolyte secondary batteries of the present invention is represented by general formula LiNiCoMO(wherein M represents at least one element selected from among metal elements, 0.3&#x2264;x&#x3c;1.0 and 0&#x3c;y&#x2264;0.5) and is configured of particles, each of which is an aggregate of crystallites. Each particle has a compressive breaking strength of from 200 MPa to 500 MPa (inclusive), and the crystallite diameter in the vector direction of the particle is from 100 nm to 300 nm (inclusive).

Positive electrode active material for nonaqueous electrolyte secondary batteries, and nonaqueous electrolyte secondary battery

A small cylindrical lithium-ion secondary battery provided with a safety mechanism that enables internal pressure to be released when an anomaly occurs. The battery includes an electrode group formed of a positive electrode and a negative electrode that are wound or stacked with a separator interposed therebetween, an electrolytic solution, a battery case that contains the electrode group and the electrolytic solution, and a sealing body. The battery case has an outer diameter of 10 mm or less. The sealing body includes a ring having a through-hole and includes a sheet-like or film-like valve member disposed such that the valve member covers the through-hole of the ring, and a safety mechanism that causes the valve member to cleave when the internal pressure reaches a predetermined pressure is disposed therein. The ring includes protrusions formed of linear ridge lines that protrude toward an inside of the through-hole.

Cylindrical lithium-ion secondary battery

A reflecting resin sheet provides a reflecting resin layer at the side of a light emitting diode element. The reflecting resin sheet includes a release substrate and the reflecting resin layer provided on one surface in a thickness direction of the release substrate. The reflecting resin layer is formed corresponding to the light emitting diode element so as to be capable of being in close contact with the light emitting diode element.

Reflecting resin sheet, light emitting diode device and producing method thereof

A phosphor reflecting sheet provides a phosphor layer on one side in a thickness direction of a light emitting diode element and provides a reflecting resin layer at the side of the light emitting diode element. The phosphor reflecting sheet includes the phosphor layer and the reflecting resin layer provided on one surface in the thickness direction of the phosphor layer. The reflecting resin layer is formed corresponding to the light emitting diode element so as to be disposed in opposed relation to the side surface of the light emitting diode element.

Phosphor reflecting sheet, light emitting diode device, and producing method thereof

An electrode plate includes a both-surface coated partin which an electrode active material layeris provided on both surfaces of a current collector core material, a core material exposed partin which the negative electrode active material layeris not provided, and a one-surface coated partin which the negative electrode active material layeris provided on only one surface of the current collector core material. A plurality of groovesare formed in both surfaces of the both-surface coated partand the groovesare not formed in the one-surface coated part

Electrode plate for battery, electrode group for battery, lithium secondary battery, method for producing electrode plate for battery and apparatus for producing electrode plate for battery

In an electrode plateincluding a both-surface coated partin which an active material layerand a porous protective filmare formed, a core material exposed partwhich is an end part of the current collector core materialand in which the active material layerand the porous protective filmare not formed, and a one-surface coated partwhich is provided between the both-surface coated partand the core material exposed partand in which the active material layerand the porous protective filmare formed, a plurality of groovesare formed in both surfaces of the both-surface coated partand are not formed in the one-surface coated part. The groovesare formed so that each of the grooves extends from the porous protective filmto the active material layer

Electrode plate for battery, electrode group for battery, lithium secondary battery, and method for producing electrode plate for battery

An epoxy resin composition for semiconductor encapsulation capable of giving semiconductor devices of high reliability that do not cause short circuits even in pitch reduction in the interconnection electrode distance or the conductor wire distance therein as well as a semiconductor device using the same. The epoxy resin composition for semiconductor encapsulation, which comprises the following components (A) to (C): (A) an epoxy resin, (B) a phenolic resin, and (C) an inorganic filler for preventing semiconductors from short-circuiting in a step of semiconductor encapsulation.

Epoxy resin composition for semiconductor encapsulation, and semiconductor device using the same

Semiconductor sealing epoxy resin composition and semiconductor device using the same

A semiconductor device in which a semiconductor chip is encapsulated in an epoxy resin composition comprising (A) an epoxy resin represented by formula (I): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 each represents an alkyl group having from 1 to 4 carbon atoms, and (B) a reaction product obtained by preliminarily reacting a silane compound represented by formula (II): ##STR2## wherein X represents a monovalent organic group having at least one functional group selected from the group consisting of a glycidyl group, an amino group, and a mercapto group; Y represents an alkoxy group having from 1 to 4 carbon atoms; and n represents 0, 1 or 2, with a phenol aralkyl resin represented by formula (III) ##STR3## wherein m represents 0 or a positive integer. The epoxy resin composition has low moisture absorption and low stress to provide a semiconductor device excellent in thermal crack resistance and moisture resistance.

Epoxy resin composition for semiconductor encapsulation and

Growing community of inventors

Osaka, Japan

Tsutomu Nishioka