Sony Corporation

Nittan Valve Co., Ltd.

Yamanouchi Pharmaceutical Company Ltd.

Hoya Corporation

Sony Electronics Inc

Sony Corporation of Japan

Sony Corportion

Yukio Kubota

Keiji Kanota

Hajime Inoue

Akira Shimazu

Takahito Seki

Minoru Morio

Yoichirou Senshu

Masahiro Kambara

Toshimichi Nagashima

Naofumi Yanagihara

Akihiro Uetake

Hidehiko Okada

Moriyuki Kawaguchi

Masaki Oguro

Michihiro Kameda

Hiroitsu Kawata

Masayoshi Aruga

Keiji Kanoto

Tetsujiro Kondo

Hiroshi Kobayashi

Hisato Shima

Hiroshi Okada

Takao Takahashi

Keitaro Yamashita

Shinichi Hasegawa

Koichi Goto

Chuen-Chien Lee

Toru Chiba

Takayuki Sasaki

Tomihiro Nakagawa

Shinichi Ishii

Kazunobu Chiba

Yoshimi Watanabe

Tadayoshi Ohmura

Takashi Sonobe

Tadahiko Nakamura

Heikichi Sato

Takaomi Sekiya

Isao Saito

Muneo Fukui

Seiichi Ogata

Yutaka Konno

Takanobu Shiokawa

Satoru Yoneya

Iwao Abe

Akifumi Tanaka

Norio Shindo

Naoki Honda

Takahashi Seki

Keiko Noji

Chiharu Yamada

Tetsuro Tsubota

The invention provides a hydraulic lash adjuster equipped with a cost effective dropout preventing mechanism for preventing a plunger from dropping out of a housing. The lash adjuster comprises: a cylindrical bottomed housing (), a plunger (), housed inside the housing (), having an outer periphery in contact with the inner periphery of the housing (), and a dropout preventing mechanism (). The dropout preventing mechanism () comprises a first groove () formed in the inner circumferential periphery of the housing () and a second groove () formed in the outer circumferential periphery of the plunger () in opposition to the first groove (), and a flexible linear memberdisposed in the first and the second grooves () and ().

Hydraulic lash adjuster

In a lash adjuster used for a valve operating mechanism of an internal combustion engine, there is known a lash adjuster constituted by inserting a cylindrical sleeve into a plunger cap for preventing air from entering a high-pressure chamber located at a lower portion of the lash adjuster. However, in the conventional lash adjuster, since the plunger cap is formed with two side holes which are different in height in the axial direction of the plunger cap, it becomes complicated to regulate the side surface the plunger cap which corresponds to a sliding surface. Therefore, it is problems to be solved by the present invention to provide a lash adjuster in which the side surface of the plunger cap can be easily regulated without disturbing the inflow and outflow of oil and whose machining cost can be kept low. The above problems can be solved by a hydraulic lash adjuster in which two or more cap side holesare provided and all of them are disposed in a plane perpendicular to a shaft center of the body

The present invention provides a DLC (diamond like carbon) film coating and a coated valve lifter, wherein the DLC film coating can be formed at a film forming rate comparable with that achieved in the case of forming the DLC coating film by the CVD (chemical vapor deposition) method and has good durability comparable with that obtained in the case of forming the DLC film coating by the sputtering film forming method. The DLC film coating includes an intermediate layerdeposited on the surface of a base substrate and a DLC layerdeposited on the intermediate layer. The intermediate layeris formed of metal carbide or metal capable of forming a hard surface and the DLC layeris formed by adding a common metal element to that contained in the intermediate layerthereto while inert gas containing hydrocarbon gas is being introduced. As a result, the intermediate layerand the DLC layercan be formed by sequential sputtering processing and in addition, an H (hydrogen) content contained in the DLC layercan be adjusted by forming a Me-DLC (metal addition DLC) layer as a DLC layer

DLC film coating and coated valve lifter

The mechanical lash adjuster is arranged between a cam and one end of the stem of a valve urged by a valve spring. The lash adjuster comprises an unrotatable housing having a thread, a plunger subjected to the force of the cam and formed with a thread in engagement with the thread of the housing, and a plunger spring urging the plunger against the action of the valve spring. The lead and flank angles of the engaging threads are set such that the engagement threads can slidably rotate under a given shaft load applied to the plunger unless the frictional torque TB, generated by the friction between the slidable frictional surface Fof the plunger and a shaft load transmission member to act on the plunger, exceeds the thrust torque TF imparted by the shaft load to the plunger.

Mechanical lash adjuster

A compact planetary gear reduction mechanism having a universal gear reduction ratio is provided, which comprises: an input shaft rotatable about a first rotational axis; at least one planetary gear having a first and a second gear of the same shape integrated together rotatably about a third rotational axis (O) but in out of phase with each other; an eccentric rotary plate for transmitting the rotational motion of the input shaft to a shaft mechanism which in turn transmits the eccentric rotation of the eccentric rotary plate to the planetary gear; an external fixed sun gear meshed with the first gear of the planetary gear; and an external driven sun gear to be connected to the output shaft of the gear reducer, having a different number of gear teeth than the fixed sun gear and meshed with the second gear of the planetary gear.

Planetary gear reduction mechanism

A hydraulic lash adjuster capable of retaining a Large amount of hydraulic oil in a reservoir communicated with a high-pressure chamber when the engine is stopped. The hydraulic lash adjuster including: a cylindrical body (24) having an upper open end, a closed bottom, and a second oil supply hole (27a) formed in the sidewall of the cylindrical body; and a plunger having a top end serving as a plunging end, a sidewall, a bottom end, a high pressure chamber (29) at the lower bottom, and a first oil supply hole (24b) formed in the sidewall, the plunger being slidabic on the inner wall of the body. The plunger has a reservoir (28) that communicates with an external oil supply line (32) via the first oil supply hole (24b) and the second oil supply hole (27a).

Hydraulic lash adjuster for internal combustion engine

A video signal receiver receives a plurality of video channels simultaneously carrying, offset by a transmission interval, a single video program, selects one channel from which to obtain the program for display to a user, and achieves a pause function in the display of the transmitted video program by temporarily storing a segment of the video program equal to the length of the transmission interval and obtaining the remainder of the program at a later time from the same or another channel.

Near video-on-demand signal receiver

A capsule endoscope has an outer cover including a transparent cover, a surface light emitting device, and a photographing optical system. The outer cover seals an inside space of the capsule endoscope. The light emitting device, which is disposed in the inside space of the capsule endoscope, emits light to an object through the transparent cover. The photographing optical system, which is disposed opposite to the transparent cover in the inside space, captures light reflected from the object which passes through the transparent cover.

Capsule endoscope

In an apparatus for recording and reproducing a digital picture signal, the large number of data bits in the digital picture signal to be recorded is reduced by a ratio of approximately 1:9, and the thus compressed data are recorded with a recording density of at least approximately 0.8 bit/&mgr;m in relatively narrow successive skewed tracks without guard bands on a metal evaporated magnetic tape having predefined characteristics. The magnetic tape has a width of no more than approximately 8 mm and a thickness of no more than approximately 7 &mgr;m and is wound in a relatively small size cassette.

Apparatus for recording and reproducing digital picture data

Copy protecting television broadcast program signals which are received and recorded in a format that reserves recording areas for accessory information relating to the format and reserves other recording areas for digital image signals. When the input signals received for recording are determined to be television broadcast program signals, a generation limiting signal inserted therein is set to a copy protect state and is recorded to inhibit copying.

Apparatus and method for TV broadcast copy protection

A recording and reproducing apparatus according to the invention has: at least a pair of rotary heads having different azimuth angles; a run controller for controlling the run of the magnetic tape; and a recording timing controller for controlling so that the recording by the rotary heads is performed at the first period when digital data having a first data rate is inputted, wherein the digital data is recorded on the magnetic tape at a recording timing. The recording and reproducing apparatus also has a memory for storing the digital data which is supplied from the outside, a reader for reading the digital data stored in the memory, and a signal processor for executing a predetermined process to the digital data read from the memory. When digital data having a second data rate which is different from the first data rate is inputted, the recording timing controller and the reader execute respective processes at an operating speed based on the ratio of those rates and the run controller controls the speed of the magnetic tape based on the data rate ratio.

Recording and reproducing apparatus in which digital data having various

Rotary head recording and/or reproducing apparatus in which respective oblique tracks on a record medium are scanned, each track having an information signal area in which information data is recorded and a track following area in which a tracking control pilot signal is recorded. The track following area precedes the information signal area; and in the preferred embodiment, an additional track following area follows the information signal area. The pilot signal is recorded in only a portion of the track following area, the remainder of which has timing sync data recorded therein. In an after-recording mode the timing sync data is reproduced, detected and used as a reference to define an after-record area.

Recording and/or reproducing apparatus with means for establishing an

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Kanagawa, Japan

Yukio Kubota