Panasonic Intellectual Property Management Co., Ltd.

Toyo Tire Rubber Co., Ltd.

Sumitomo Wiring Systems, Limited

Tomoegawa Co., Ltd.

Panasonic Corporation

Oki Power Tech Co., Ltd.

Hiroaki Takahashi

Kiyotaka Komori

Masaya Koyama

Jun Tochihira

Hideo Tadano

Ryu Harada

Yoshinori Matsuzaki

Yasuo Ueda

Akihiko Kato

Yusuke Ito

Michihiro Kawada

Tomoyuki Aoki

Kosuke Takahashi

Tadayuki Suzuki

Yasumasa Shibata

Hideo Sato

Takahiro Kobayashi

Yutaka Tashiro

Takaki Kishida

Tomohide Hayashi

Tomoya Hayashi

Hiroki Morikawa

Tadashi Mori

Hiroshi Tajika

A method for manufacturing a metal clad laminated plate includes hot pressing a laminated body by a double belt press method. The laminated body includes an insulating film containing the liquid crystal polymer and the metal foil lying on the insulating film. In hot pressing the laminated body, a highest heating temperature is higher than or equal to a temperature lower than a melting point of the insulating film by 5° C. and lower than or equal to a temperature higher than the melting point by 20° C. The highest heating temperature is maintained for longer than or equal to 20 seconds and shorter than or equal to 120 seconds.

Metal clad laminated plate and method for manufacturing metal clad laminated plate

A multilayer printed wiring board including one or more insulating layersand at least one conductive layerwhich are stacked alternately is disclosed. The one or more insulating layersinclude at least one liquid crystal polymer resin layerso that each of the one or more insulating layersincludes at least one layer selected from a group consisting of at least one polyolefin resin layerand the at least one liquid crystal polymer resin layer. A percentage by volume of the at least one liquid crystal polymer resin layerrelative to the one or more insulating layersis within a range of 5 to 90%.

Multilayer printed wiring board, multilayer metal-clad laminated board, and resin-coated metal foil

A microcomputer input/output circuit is provided with a microcomputer, a power supply, a power supply resistor that is connected at one end to the power supply and alternately connected at an another end to grounded external resistors via a switch, a power supply voltage monitoring unit capable of monitoring a power supply voltage, a divided voltage value monitoring unit capable of monitoring a divided voltage value obtained through voltage division by the power supply resistor and a selected one of the external resistors and an external resistor specification means that specifies the external resistor selected by the switch depending on which divided voltage value range corresponding to each of the external resistors the divided voltage value is included, and the external resistor specification means A changes the divided voltage value ranges based on the power supply voltage acquired by the power supply voltage monitoring unit.

Microcomputer input/output circuit

A printed wiring board includes: a first insulating layer having a first surface and a second surface opposite from the first surface; a second insulating layer stacked on the first surface of the first insulating layer; and a conductor wiring interposed between the first insulating layer and the second insulating layer. The first insulating layer contains a liquid crystal polymer. The second insulating layer contains a cured product of a thermosetting composition, containing an inorganic filler and a thermosetting component, and a fibrous base member. A temperature, at which a decrease in the mass of the second insulating layer that has had its temperature increased at a temperature increase rate of 10&#xb0; C./min from an initial-state temperature of 25&#xb0; C. reaches 5% of its initial-state mass, is equal to or higher than 355&#xb0; C.

Printed wiring board and method for manufacturing printed wiring board

Included are removing an outermost layer or outermost layers on one side or both sides of liquid crystal polymer film; and a molding step of performing thermocompression molding on liquid crystal polymer film and metal foil stacked on the side of liquid crystal polymer film whose outermost layer is removed. A heating temperature in the molding step is in a range from a temperature equal to a melting start temperature, of the liquid crystal polymer film, measured by using a rigid body pendulum type viscoelasticity measuring device to a temperature 60&#xb0; C. higher than the melting start temperature inclusive.

Method for manufacturing metal clad laminated board, method for manufacturing electronic circuit board, and rigid body pendulum type viscoelasticity measuring device

A multilayer printed wiring board has excellent high-frequency characteristics. The multilayer printed wiring board includes one or more conductive layers and one or more insulating layers. In the multilayer printed wiring board, the one or more conductive layers and the one or more insulating layers are alternately stacked. Each insulating layer of the one or more insulating layers includes one or more of a polyolefin resin layer, a fluororesin layer, a polyphenylene ether resin layer, a polyamideimide resin layer, and a polyimide resin layer. At least one insulating layer of the one or more insulating layers includes a polyolefin resin layer.

Multilayer printed wiring board and multilayer metal clad laminated board

Some embodiments relate to a vehicle electronic controller having a microcomputer and a port expansion element, with reduced power consumption and radio noise. An MCU (microcomputer) performs determination processing that determines whether an output condition is established that is based on a signal that is input via a signal input port of the MCU. If the output condition is established, the MCU transmits a signal output instruction to a port expansion element via a communication port, and if not, the instruction is not transmitted. The port expansion element outputs a signal via a signal output port in response to an instruction from the MCU. The port expansion element automatically switches, depending on whether communication via the MCU is being suspended, between operation in a waiting mode in which the internal oscillation circuit is suspended, and operation in a normal mode in which the internal oscillation circuit is operated.

Vehicle electronic controller for automatically switching between a port being suspended based on a mode of an internal oscillation circuit

An optical pickup according to the present invention includes: a light sourcefor irradiating an optical diskwith light; a lensfor converging the light onto the optical disk; a photodetectorhaving a plurality of detection regionsfor detecting light which is reflected from a signal surface of the optical diskand converting the light into an electrical signal; a hologram elementhaving a hologram regionfor guiding the reflected light to the photodetector; and a light-shielding platefor blocking at least a portion of light transmitted through a region of the hologram elementother than the hologram region. The light-shielding plateincludes a light shielding portionfor blocking light, and an aperturefor allowing the light to be transmitted therethrough. The apertureis present, above an upper face of the hologram element, in a region including the hologram region, and a center position of the apertureis shifted from a center position of the hologram region

Optical pick up and optical disc device having optical shield for suppressing the influence of stray light through hologram element

A switching power supply circuit uses a magnetic material that is harder to be magnetically saturated than ferrite as a core of a transformer or a choke coil and suitably protects a switching element. The circuit includes a transformer having a core made of a magnetic material of amorphous metal, a primary-side winding and a secondary-side winding. The circuit further includes a switching element for flowing current through the primary-side winding of the transformer according to a pulsive drive signal, and a primary-side current detection circuit for detecting the current flowing through the primary-side winding. The circuit further includes plural circuit elements for rectifying and smoothing a voltage generated in the secondary-side winding of the transformer to generate an output voltage, and a control circuit for generating the drive signal based on at least a detection result of the primary-side current detection circuit, and limiting a period for flowing the current in the primary-side winding.

Switching power supply circuit

This invention has an object of diminishing an inside diameter while securing the area of the terminal edge larger, at the extremity of a cylindrical body made of a metal used for a vibration isolating bushing and the like. Accordingly, the present invention provides a manufacturing method of vibration isolating bushingserving to stick the rubber elastomerto the outer circumference of an inner cylindermade of a metal by means of vulcanization forming, by diminishing in diameter the extremityby cold plastic working while turning a diameter diminishing jigand pressing against the circumferential surface of the axial extremityof the inner cylinder, and further by enlarging and forming the terminal edgeby cold plastic working while turning an upsetting jigand pressing against the terminal edgeat the extremitybeing diminished in diameter.

Method of working end part of metallic tube body and metallic tube body, and method of manufacturing vibrationproof bush using the working method and vibrationproof bush

A method of producing a vibration-isolating bushing with which it is possible to secure a larger area of the edge surface of an inner cylinder than in the prior art method. In upsetting one extremity of the inner cylinder by cold plastic working, after a rubber elastomer is secured to the outer circumference of the inner cylinder by vulcanization molding, as a jig for pressing onto the edge surface of the inner cylinder, an upsetting jig whose top surface is flat is used and the top surface of the jig is pressed onto the edge surface of the inner cylinder while causing the jig to gyrate on a conical orbit centering the axis of the inner cylinder, whereby the outside diameter only of the extremity is enlarged while suppressing the enlarging of the inside diameter.

Method of producing vibration-isolating bushing

A link rod for supportably suspending a structural member from a vehicle frame includes a one-piece body press-formed from a metal plate material. The one-piece body defines a main rod section having a bent portion at one end thereof forming a first attachment section which lies on a plane arranged crosswise to a plate plane of the main rod section, and a second attachment section attachment section extending contiguously to an opposite end of the main rod section co-directionally with the plate plane. Reinforcing flanges formed at lateral edges of the main rod section. The reinforcing flanges include extension edges disposed at the bend portion and extending at least from the one end of the main rod toward the first attachment section, the extension edges being bent outwardly from top edge portions of the reinforcing flanges in a direction crosswise to a remainder thereof.

Growing community of inventors

Mie, Japan

Hiroaki Takahashi