Matsushita Electric Industrial Co., Ltd.

Tooru Tamura

Hideaki Mochizuki

Nobuyuki Ojima

Masaaki Sunohara

Shunsuke Matsuda

Akio Ito

Sigeru Kondo

Mitsuaki Oshima

Tsuyoshi Uemura

Masakazu Uekita

Kenichi Takahashi

Hiroshi Satani

Makoto Murata

Yoshinobu Murakami

Takahiro Manabe

Mikio Nozu

Toyota Noguchi

Hiroshi Ikushima

Yoshio Nakatani

Tsuneo Danno

Kensuke Kuchiba

Jizodo Yozo

Kenichirou Kishita

Toshifumi Ikka

Ryuichi Souno

Akio Itoh

A liquid crystal device is disclosed wherein a pair of liquid crystal supporting plates each having a molecular alignment controlling film formed thereon through the Langmuir-Blodgett method singly orlaminatedly a monomolecular film having as a main component a polyamide compound having a long-chain alkyl substituent in its side chain and a property to overspread a surface of water to form a monomolecular film is oppositely held via a spacer which is adhered on the side on which the molecular alignment controlling film is formed, and a liquid crystal material is injected and held into the space produced between the films thus oppositely held to each other thereby to align the molecules of liquid crystal to the azimuth parallel to the dipping direction of the substrate. A liquid crystal device thus manufactured exhibits a uniform and indefective molecular alignment condition.

Liquid crystal device

A method of producing an optical recording medium according to the present invention includes the steps of forming a recording film on a transparent substrate, recording signals in the form of perforated pit rows on the recording film by a laser beam, and forming a reflection layer on the recording film on which the pit rows have been formed. The recording film is bleached after recording or the laser beam used for recording is selected to have a wavelength different from that of a laser beam used for reproducing so that the recording film is transparent to the laser beam used for reproducing.

Method of producing an optical recording medium and an optical recording

An electronic circuit module comprises a case, first and second substrates disposed in the case on opposite inner walls with a gap therebetween and, a flexible film having a circuit pattern thereon and attached at a part to the first substrate and attached at another part to the second substrate. A first group of electronic components including a heat-generating component are mounted on the film part attached to the first substrate. A second group of electronic components including a low-heat-resistive component are mounted on the film part attached to the second substrate. The gap between the first and second substrates is filled with a resin layer, preferably a foam resin layer, having a low heat conductivity so as to prevent a heat transfer from the heat-generating part to the low-heat-resistive part.

Electronic circuit module

A signal recording disk having an adhesive resin layer formed on a recording layer. The adhesive resin layer contains at least an epoxy group-containing compound, thereby preventing the recording layer from being degraded for a long period of time.

Signal recording disk

There is provided an optical disc of high reliability, with the recording film protected from deterioration. The optical disc of this invention is produced by forming a tellurium suboxide film or optomagnetic recording film on a substrate made by injection molding from a polycarbonate resin. The substrate is made from a polycarbonate resin containing a phosphite ester-based antioxidant in a specific low amount.

Substrate for an optical disc

An optical disc comprises a resin disc substrate, a recording medium layer formed on the disc substrate, a high purity of transparent layer, and a transparent protective resin layer. The transparency of the transparent layer is larger than that of the transparent protective resin layer. A laser beam is focused on the recording medium layer through the transparent protective layer and the transparent layer. The transparent layer is a transparent adhesive layer or an air layer. The focused laser beam is not affected by foreign matter in the vicinity of the recording medium layer due to the high transparency of the transparent layer on the recording medium layer.

Optical disc and method of manufacturing

A chip film capacitor laminated at both sides with vapor coated metal electrodes and heat resistant films of heat resistant resin dielectrics, the laminated body having at both sides common metal electrode element, which is characterized by providing no lead wire and being soldered directly onto a substrate.

Organic chip capacitor

There are provided acrylic plastic lenses having a wide range of refractive indices as well as excellent physical and optical properties by polymerization of specific acrylic monomers in the presence of a photopolymerization initiator and a thermal polymerization catalyst.

Plastic lens of neopentyl glycol dimethacrylate copolymerized with

A film condenser formed of a solderable metal foil composed on one member 1 selected from the group consisting of copper, tin, and aluminum having a heat resistant plastic film 2 coated on one surface and a vapor-deposited metal film 3 on the surface of the heat resistant plastic film facing away from the metal foil. Two lead wires each having a part bent in the shape of a V or u with the open end facing laterally of the length of the wire and having a size to prevent solder in a molten state from flowing out of the bent part during soldering due to the surface tension of the molten solder are soldered to the other surface of the metal foil and to the surface of the metal film facing away from the plastic film.

Small heat resistant film condenser

This invention provides an elastic surface wave device utilizing Bluestein-Gulyaev wave and constructed by a unitary body of a piezoelectric plate having a plurality of transducers thereon, wherein the wave propagation surface being coated with an insulating rubber and being embedded in molding by an insulating powdered epoxy resin, or whose body is attached on a unitary supporting substrate via double adhesive layers; wherein one layer is composed of one kind of adhesive resin and the other is composed of another kind of adhesive resin different from the former in ultrasonic property. This device is advantageous because it has a low spurious signal level without increasing insertion loss, and is easy to manufacture and inexpensive. This invention also provides an effective method for making the device.

Elastic surface wave device and method for making the same

A method of treating a semiconductor device comprising the step of dipping said semiconductor device into a solution of chelating agent selected from the group consisting of .gamma.-pyrones, nitrated catechols, flavones and combinations thereof.

Method of increasing the amplification of a transistor through use of

An epoxy resin composition for encasing semiconductive devices comprising a homogeneous mixture of a cresol novolak type epoxy resin and phthalic anhydride as a curing agent, the amount of phthalic anhydride being in excess of the equivalents of epoxide groups, a derivative of imidazole as a curing accelerating agent, and remainder being mineral filler.

Growing community of inventors

Ikeda, Japan

Tooru Tamura