Hitachi, Ltd.

Atsugi Unisia Corp.

Nissan Motor Company Limited

Autoliv Development Ab

Unisia Jecs Corporation

Atsugi Unista Corporation

Yoshihiro Yamada

Yuto Kobayashi

Takashi Shiba

Akitsuna Yuhara

Yasuhiro Ohta

Masato Sasaki

Hiroshi Shimizu

Tadashi Kuwabara

Makoto Fuma

Hidefumi Goto

Tomohiro Esaki

Minoru Moteki

Sumio Hirao

Tooru Yokozawa

Katsumi Itoh

Masaji Matsunaga

Wataru Kitayama

To effectively retain a deployed airbag without increasing installation man hours, in addition to suppressing rotation of this airbag in a direction away from a seat. For example, a side airbag apparatusinstalled inside a backrest SB of the seat S includes: an airbag; an inflatorprovided inside the airbag; a tether; and a bracket. The airbagis deployed in a first direction in which a base end sidethereof is attached to a seat back frame SBF and the tip side thereof is distant from the backrest SB. The tetherincludes: one endattached to the seat back frame SBF; and the other end which extends in the first direction on the outer surface of the airbagin the deployed state so as to be attached to the part on the tip sideof the airbag. A bracketis attached to the seat back frame SBF and provided in the direction in which the tetherextends. The tetheris supported by the front end of the bracket

Airbag apparatus

A structure of a spectrum spreading communication device which solves the problem with the conventional spectrum spreading communication using Barker codes, etc., and limits the rise of the side-lobe of a correctional signal independently of the order of information codes by use of a code sequence having a code length of at least 14. The spectrum spreading communication device uses a pseudo-noise code having code length of at least 14 and a self-correlation side-lobe of not greater than 3 as a pseudo-noise code of a direct spreading communication device which uses the pseudo-noise codes whose polarities are inverted so as to deal with also digital information. Thus, even when the pseudo-noise code length is 14 or more, the side-lobe of the correction coefficient can be restricted. Accordingly, the error rate of the spectrum spreading communication device is reduced and the processing gain is improved.

Spread spectrum communication device and communication system

It is the object of the invention to provide a structure of a novel spectrum spreading communication device which solves the problem with the conventional spectrum spreading communication using Barker codes, etc. and limits the rise of the side-lobe of a correctional signal independently of the order of information codes by use of a code sequence having a code length of at least 14. The spectrum spreading communication device uses a pseudo-noise code having a code length of at least 14 and a self-correlation side-lobe of not greater than 3 as a pseudo-noise code of a direct spreading communication device which uses the pseudo-noise codes whose polarities are inverted so as to deal with also digital information. Thus, even when the pseudo-noise code length is 14 or more, the side-lobe of the correction coefficient can be restricted. Accordingly, the error rate of the spectrum spreading communication device is reduced and the processing gain is improved.

Piston for internal-combustion engine and method for manufacture thereof

A surface acoustic wave device makes it possible to increase the electrode width without generating mass-electrical-loading and is capable of operating in a high-frequency band higher than or equal to the UHF band, and this surface acoustic way device may be used in a communication device to eliminate need for any down-converter which is indispensable to the conventional high-frequency communication device, and which is therefore capable of being manufactured at a reduced cost. The surface acoustic wave device is provided with an electrode structure meeting conditions represented by: s+m=(2n+1)L/(4k), where L is electrode period, not taking into consideration the polarity of an interdigital transducer, m is electrode line width, s is minimum electrode gap width, and n and k are natural numbers. The surface acoustic wave device is used as the demodulator of the communication device.

Surface acoustic wave device and communication device employing the

A transmitting management apparatus transmits information having an identification number corresponding to a portable information terminal to which information is to be delivered and/or having a sorting code identifying the information. The portable information terminal receiving the transmitted information selectively acquires and stores proper information by referring to the identification number and/or the sorting code of the received information, and displays the proper information on a display means.

Information delivery system and portable information terminal

A surface acoustic wave device having a novel structure capable of restricting TTE and ripple noise on a frequency characteristics and group delay time characteristics thereof is provided under a condition by which acoustic reflection is suppressed when there is internal dissipation in the device and/or a peripheral circuit thereof. When the device includes a unidirectional interdigital transducer, it is possible to restrict ripple of the frequency characteristics and the group delay time characteristics and to reduce loss without using a phase shifter. By using the surface acoustic wave device according to the present invention, a communication apparatus can be improved in performance.

Surface acoustic wave device, equipment including the same with electric

An aluminum-silicon alloy having excellent mechanical characteristics is formed by pressure casting of a molten material concurrently with modifying thereof by a flux which includes at least one element selected from the group of Na, Sb, Sr, and/or Ca, allowing a substantially fine grain of silicon to be dispersed in the alloy. Alternatively, the step of the pressure casting is replacable by substantial uniform cooling of the molten material regardless of a thickness thereof by cooling a die having a mold formed of a Cu-W type material, which mold corresponds to a substantially thick portion of the alloy.

Die for forming aluminum silicon alloy

Method for forming aluminum-silicon alloy

An internally-chilled piston for an internal combustion engine is provided. This piston comprises a piston body made of an aluminum alloy and a piston head including a cylindrical member and a ring-shaped member engaging the outer peripheral surface of the cylindrical member by a shrink fit bonding. The cylindrical member constitutes the central portion of the piston head, while the ring-shaped member constitutes the periphery thereof. On the surface of the ring-shaped member which contacts with the melt forming the piston body during casting, an aluminized layer is formed which chemically connects the ring-shaped member and the piston body to increase the mechanical strength of bonding therebetween.

Piston for internal combustion engine

Growing community of inventors

Kanagawa, Japan

Yoshihiro Yamada