Sony Corporation

Other

Nitto-Denko Corporation

Fuji Jukogyo Kabushiki Kaisha

Son Corporation

Junichi Toyoda

Katsumi Okayama

Sakan Iwashita

Kazumasa Igarashi

Masayuki Suzuki

Koji Nitta

Akihisa Hosoe

Shinji Inazawa

Hiroki Ito

Yoshihiro Kato

Yoshiki Kanayama

Naomi Nagasawa

Yoshinobu Yamazaki

Toshiyuki Imagawa

Tsunehiro Maruo

Shinya Kurasawa

Koichiro Inomata

Satoshi Sugimoto

Suguru Matsumoto

Tatsuo Hakuta

A waste heat recovering and cooling apparatus for an engine includes a water pump that ejects cooling water of an engine; an EGR cooler that cools EGR gas introduced into an intake pipe from an exhaust pipe of the engine by using some of the cooling water ejected from the water pump; an EGR valve that opens and closes the channel of the EGR gas passing through the EGR cooler; and a transmission warmer that heats lubricating oil of a transmission by the cooling water passing through the EGR cooler.

Waste heat recovering and cooling apparatus for engine

A portable telephone having an antenna for transmitting and/or receiving a wireless signal, a microphone for generating a sound signal corresponding to an input sound, a transmitting and receiving circuit for generating a wireless signal corresponding to the sound signal generated by the microphone to transmit the wireless signal through the antenna and generating a sound signal corresponding to the wireless signal received by the antenna, a receiver for outputting sound corresponding to the sound signal generated by the transmitting and receiving circuit, a shield case for surrounding and housing all or part of the transmitting and receiving circuit and being conductive, an electric wave absorber with one face in contact with a predetermined area of the shield case for absorbing an electric wave, and a conductive layer formed on another face of the electric wave absorber and electrically connected to the shield case.

Communication apparatus and portable telephone

A resin component for encapsulating a semiconductor includes magnetic powder and silica powder whose average particle diameter is smaller than the average particle diameter of the magnetic powder. Thus, the curing body of the resin component for encapsulating a semiconductor has an electromagnetic wave shielding function by the magnetic powder. Since the spaces of the magnetic powder are filled with the silica powder whose average particle diameter is small, the moldability of the curing body is improved and the insulating characteristics thereof are enhanced. Such a resin component for encapsulating a semiconductor is employed, there can be produced a preferably formed and encapsulated semiconductor device having the electromagnetic wave shielding function and having no malfunction generated due to leakage current from a semiconductor element.

Resin component for encapsulating semiconductor and semiconductor device using it

A complex material, which emits light with a light hand or finger touch of a person and only when subjected to a stress, comprises stress emission particles and an elastic material. The stress emission particles such as SrAlO:Eu particles emit light when subjected to a stress. The elastic material is a soft material having a Young's modulus smaller than 10 MPa, such as silicone rubber, synthetic rubber, natural rubber, or the like. Weight percent of the particles in the complex material is from equal to or more than 10% to less than 100%, ore preferably from equal to or less more than 10% to equal to or less than 90%. The particles are preferably surface-treated by a silane coupling agent. The complex material is used as an artificial light-emitting skin or an artificial light-emitting body.

Complex material, artificial light-emitting skin and artificial light-emitting body

Epoxy resin composition used for encapsulating semiconductor and semiconductor device using the composition

The portable telephone capable of more effectively reducing the electromagnetic energy to be radiated therefrom and absorbed by the human body during its use is provided. The portable telephone is comprised of: an antenna; a microphone; a transmitting circuit for modulating a first audio signal to produce a first radio signal, and transmitting the same; a receiving circuit for demodulating a second radio signal received via the antenna, and reproducing a second audio signal; a receiver for outputting an audio sound corresponding to the second audio signal; a printed circuit board on which the receiving and the transmitting circuits are mounted; a shield case surrounding the printed circuit board so as to suppress the electromagnetic interference between the printed circuit board and the antenna; the housing for accommodating the shield case and so on; the electromagnetic wave absorption layer including a magnetic loss material, formed at least in a part between the shield case and the housing; and the electromagnetic wave reflection layer including a magnetic reflection material, formed between the housing and the electromagnetic wave absorption layer.

Portable telephone

A magnetic powder is produced by use of a plating mold M which is pattern-formed with an electrode range corresponding to the shape of a magnetic powder and an insulative range surrounding the periphery of the electrode range, precipitating films of the magnetic material selectively in the electrode range through an electroplating and then peeling the films from the plating mold. The flat magnetic powders where are regular in piano shapes and diameters among or between powders or where average crystal grain diameters are 100 nm or smaller, are much dispersed into an insulative resin as a bonding agent.

Electromagnetic wave absorbent and method for producing magnetic powder for the same

An electromagnetic wave suppressor sheet formed into a sheet-like shape out of a material made of synthetic resin in which powder of conjugated magnetic particles surface-treated with an insulating inorganic material has been dispersed.

Electromagnetic wave suppressor sheet

There is disclosed a thinner-layered radio wave absorber having high absorption performance for a high frequency electromagnetic wave. The radio wave absorber, even when having a magnetic layer of not more than 1 mm in thickness, achieves satisfactory absorption characteristics for the high frequency electromagnetic wave by adopting a structure that a conductor is fixedly attached to a face opposite to an electromagnetic-wave incident face of the magnetic layer of single-layered structure, and also arranging the magnetic layer to have values of a real part &mgr;&prime; and an imaginary part &mgr;&Prime; of complex relative magnetic permeability of the magnetic layer satisfying an expression of &mgr;&Prime;&gE;m&mgr;&prime;&minus;n (m: real number of m>0, n: real number of n&gE;0) outside an impedance mismatching region.

Radio wave absorber

A radio wave absorbent capable of absorbing radiowaves in the space saving and efficient manner and capable of coping with up to high frequency bands, as well as a manufacturing method thereof are provided. In a radio wave absorbent in which magnetic particles comprising a soft magnetic metal material are mixed with a matrix of a polymeric material or ceramics, the magnetic particles are formed into elliptic plate particles.

Radiowave absorbent and manufacturing method thereof

An electromagnetic wave absorber including a mixture comprising a magnetic material particle and a binding material. The magnetic material includes a nucleus of an organic material and a magnetic material film is formed on a surface of the nucleus.

Electromagnetic wave absorber

Disclosed is an electromagnetic wave shielding apparatus for shielding electromagnetic waves generated from a circuit so as to prevent the electromagnetic waves from being leaked to the outside of the circuit. The apparatus includes a metal member disposed in such a manner as to be opposed to the circuit, and an electromagnetic wave absorbing member disposed on the metal member, wherein the electromagnetic absorbing member is composed of a carbon layer and coil-like carbon fiber structures. The apparatus is allowed to simply obtain an electromagnetic wave absorbing function without increasing the weight of the apparatus.

Apparatus and method for shielding electromagnetic wave

An ultrasonic-wave distance measuring apparatus of the separate transmission and reception type reflection system capable of making the measurable distance longer and improving the precision of the measuring, wherein a distance measurement calculation control circuit in an ultrasonic-wave transmitter starts counting a time simultaneously with the start of vibration of an ultrasonic-wave transmission sensor, the ultrasonic-wave emitted from the ultrasonic-wave transmission sensor is reflected at the object to be measured and detected by an ultrasonic-wave reception sensor, a distance measurement sensitivity correction circuit corrects the sensitivity of the signal from the ultrasonic-wave reception sensor based on sensitivity correction data predetermined in accordance with a type of object and a measurement distance, the signal after the sensitivity correction by the distance measurement sensitivity correction circuit is detected in a detection circuit, and the distance measurement calculation control circuit stops counting when the detection signal exceeds a predetermined level, measures the time from the start of vibration of the ultrasonic-wave transmission sensor to the reception by the ultrasonic-wave reception sensor, and calculates the distance between the object to be measured and the ultrasonic-wave transmission sensor based on the obtained time.

Ultrasonic-wave distance measuring method and apparatus of separate transmission and reception type reflection system

A data storage disk drive includes an optical head positioned in spaced relationship to the data storage disk by a holder for an objective lens and a piezoelectric body and a resilient body which are mounted on a surface of the holder which faces the data storage disk. An AC power supply applies an AC voltage to the piezoelectric body to produce a flexural standing wave that keeps the resilient body in quasi contact with the data storage disk for making substantially constant a gap between the optical head and the data storage disk.

Growing community of inventors

Tokyo, Japan

Junichi Toyoda