Honda Giken Kogyo Kabushiki Kaisha

The Whitaker Corporation

Other

Nec Corporation

Asahi Kasei Chemicals Corporation

Hiroshi Shirai

Hiroyuki Okazaki

Koichi Fukuo

Takashi Tatsumi

Masahito Kuramitsu

Toshiaki Hiro

Takaki Naitoh

Okitsugu Furuya

Eiko Kobayashi

Kimihiro Kubo

Jun Yonezawa

Takaki Naito

Masahiko Motsumoto

Masaki Uchida

Hisashi Kanda

Yuko Fukuoka

Koichi Iino

An optical material having a high birefringence and a small absolute value of a photoelastic coefficient is provided by use of a resin composition for an optical material comprising a resin (a) having a positive photoelastic coefficient and a negative inherent birefringence and a resin (b) having a negative photoelastic coefficient and a negative inherent birefringence.

Resin composition for optical material

A paging processing system in a virtual storage device of a computer composed of a plurality of computers connected directly or over a network including page data reception checking portion for notifying other computer which conducts page-out processing of the number of free physical pages of a physical memory in its own computer, page data reception/transmission portion for conducting processing of receiving page data from other computer and processing of returning received data, page data transmission checking portion for selecting a computer as a page data transmission destination based on the number of free physical pages notified by the page data reception checking portion, page data transmission/reception portion for conducting transmission processing of transmitting, to the other computer selected, page data of a virtual page to be paged out and reception processing when transmitted page data is returned, and page management portion for controlling each of the portion to manage a correspondence relationship between a virtual page and a physical page.

Paging processing system in virtual storage device and paging processing method thereof

Electrical connector (1) comprising a first contact member (10) having an arcuate contact surface (14a) that engages an electrical wire (3), a second contact member (40) has a connecting portion (50) and a pressing portion (48) that presses a free end (30) of the contact section (14). Insulating housing (60) has a first cavity (62) in which a wire-engaging surface (74) is located, and a second cavity (66) which communicates with the first cavity (62). When the first contact member (10) is inserted into the first cavity (62) and the second contact member (40) is press-fitted in the second cavity (66) in a state in which the electrical wire 3 is disposed between the wire-engaging surface (74) and the contact section (14), the pressing portion (48) presses the free end (30) so that the contact section (14) is caused to make electrical connection with the electrical wire (3).

Electrical connector

An electrical connector for interconnecting a flexible printed circuit with a printed circuit board comprises a plug connector and a socket connector. The plug connector includes a plug housing having an end portion of the flexible printed circuit fastened thereon. The socket connector includes a socket housing which defines a cavity open through a top of the socket housing and dimensioned to receive the plug connector therein. A flexible film which carries a plurality of conductors is wrapped around an elastomer, and the elastomer is disposed in the cavity with the conductors arrayed for mating engagement with respective circuit paths on the flexible printed circuit. The flexible film is fastened to a bridge part of the socket housing adjacent to the cavity.

A circuit board connector 110, 210 for electrically connecting conductive pads 261,262 of circuit boards 260a,260b comprises a first dielectric housing 120a, 220a having a recess 141,241 extending along the length thereof, first electrical contacts 150a, 250a on the first dielectric housing 120a,220a having first contact sections for electrical connection to the conductive pads 261 of a first circuit board 260a and second contact sections extending along opposing walls of the recess 141,241; a second dielectric housing 120b, 220b profiled to fit within the recesses 141, 241, second electrical contacts 150b, 250b on the second dielectric housing 120b, 220b having third contact sections for electrical connection to the conductive pads 262 of a second circuit board 260b and fourth contact sections extending along side surfaces of the second dielectric housing 120b, 220b opposite the walls of the recess 141, 241; and elastomer connecting members 30 disposed in the recess 141, 241 between the side surfaces of the second dielectric housing 120b, 220b and the walls of the recess 141, 241 electrically connecting the second contact sections and the fourth contact sections.

Circuit board electrical connector

A valve operating device for operating an intake or exhaust valve in an internal combustion engine includes a cam having a cam profile including a valve lifting portion for applying a force to open the engine valve and a base circle portion for allowing the valve to be closed, the cam profile having a valve opening point and a valve closing point between the valve lifting portion and the base circle portion, a cam follower slidably engaging the cam, and a hydraulic lash adjuster combined with the cam follower for eliminating any gap between the means and the engine valve. The base circle portion has a gradient cam surface or a combination of different gradient cam surfaces for canceling out valve-lifting radial displacement of the base circle portion.

Valve operating device for use in internal combustion engine

A valve operating mechanism for an internal combustion engine having a crankshaft and a plurality of intake or exhaust valves normally biased in a valve closing direction includes a rocker shaft, a cam rotatable in synchronism with the crankshaft, a plurality of rocker arms swingably supported on the rocker shaft in association with the valves, respectively, and swingable by the cam, a coupling device for selectively connecting and disconnecting adjacent ones of the rocker arms under hydraulic pressure, and a hydraulic circuit openable and closable according to a rotational speed of the engine for selectively supplying hydraulic pressure to the coupling device. The opening and closing of the hydraulic circuit are controlled in view of a delay in operation thereof based on an angular displacement of the crankshaft or the cam so that the coupling device will be inoperative when the rocker arms are in a predetermined initial interval of a valve opening stroke thereof. The delay in operation of the hydraulic circuit is determined dependent on operating conditions of the internal combustion engine. The predetermined initial interval is defined such that when a piston of the coupling device is urged to slidably move from one of the rocker arms to the other during the initial interval, the piston is struck by the other rocker arm.

Valve operating mechanism for an internal combustion engine

Growing community of inventors

Saitama, Japan

Hiroshi Shirai