Nippon Telegraph and Telephone Corporation

Nec Corporation

Honda Tsushin Kogyo Co., Ltd.

Sanwa Denki Kogyo Co., Ltd.

Kabushiki Kaisha Toshiba

Hitachi High-tech Corporation

Hirose Electric Company, Ltd.

Other

Sumitomo Electric Industries, Limited

Japan Aviation Electronics Industry, Limited

Nippon Telegraph

Sumiden High Precision Co., Ltd.

Yasuhiro Ando

Kazunori Kanayama

Ryo Nagase

Etsuji Sugita

Shin'ichi Iwano

Nobuyuki Tanaka

Toshiaki Nakano

Akira Kawahara

Shinichi Iwano

Hiromasa Okamura

Takeshi Sakamoto

Takashi Nishiyama

Shuichiro Inagaki

Tateomi Matumoto

Jun Takeda

Masaki Mizuochi

Akira Nishioka

Motohiro Takahashi

Suzuo Saito

Masatoshi Shimizu

Mitsuo Usui

Yasuhiro Yamaguchi

Kenichi Donuma

Tetsuaki Watanabe

Raifu Yamamoto

Yuji Shinagawa

Shin-Ichi Iwano

Nobuo Ishimine

Keiji Murakami

Hironobu Ishizuka

Kenichi Nakano

Kouichiro Matsuno

Noboru Iwasaki

Toshiaki Furukawa

Mitsuaki Yanagibashi

Shiniichi Iwano

Kuniharu Katou

Katsumi Kaizu

Tatuhito Shinozaki

Yoshihiro Isozaki

Makoto Yamashita

Ritsuo Fukaya

Kohsuke Katsura

Nobuo Sato

Shouji Tsurumoto

A stage apparatus includes a lower stage that moves in a Y-axis direction, an upper stage that floats from the lower stage and moves at least in an X-axis direction orthogonal to the Y-axis direction, a heat exchanger that cools a Y table of the lower stage with a refrigerant, and a control device that controls an inclination of the lower stage with reference to the Y table cooled by the heat exchanger.

Stage apparatus and charged particle beam apparatus including stage apparatus

The present invention pertains to a surface analysis device () and provides a technology that can increase accuracy and quality of measurement and analysis even when a local deviation is generated in height information of a measurement result of a scanning probe microscope (SPM) (), due to an atmospheric pressure change with respect to an airtight tank (). The surface analysis device () is provided with: an airtight tank (); a stage () that holds a sample () in the airtight tank (); the SPM () that is fixed to a structure configuring the airtight tank () and that measures the surface of the sample (); a sensor () that is disposed outside of the airtight tank () and that measures atmospheric pressure; and a computer system that analyzes the surface of the sample by using a first signal obtained through measurement by the SPM () and a second signal obtained through measurement by the sensor ().

Surface analysis device

LAN device and tools can be connected only by optical fiber cables without providing a space for additional LAN devices and tools and changing an electric connector interface of the LAN devices and tools already established. Heat radiation produced in a connector can be effectively discharged and electromagnetic wave can be prevented from radiating to an exterior of the connector

Optical active connector plug for LAN and its connector port

A channel-to-channel skew compensation apparatus is provided with N number of frame synchronization circuits for generating frame signals to indicate data position of parallel data on a common time axis for each data transmission channel; a reference timing determination circuit for determining a reference timing based on N frame signals output from the frame synchronization circuit a skewing amount detection section for generating N skewing amount signals according to the reference timing determined by the reference timing determination circuit and a timing compensation section for adjusting output timing of parallel data for each transmission channel according to the skewing amount signal generated by the skewing amount detection section

Channel-to-channel skew compensation apparatus

In an optical fiber connector ( ), an outer member ( ) holds a portion of an optical fiber (4A) remote from its connecting end which is connectable to a connecting end of a counterpart optical fiber. An aligning member ( ) is held by the outer member so as to be movable along the optical fiber. The aligning member carries out positioning of the connecting end of the optical fiber. The aligning member is urged by a spring ( ) in a direction to project from the outer member. When connecting the optical fiber to the counterpart optical fiber, the aligning member is moved in a direction opposite to the foregoing direction against an urging force applied by the spring so that the connecting end of the optical fiber is projected from the aligning member.

Optical fiber connector in which an optical fiber is protected even when connection is not made

In the guard ring section, four regions, p diffusion region, n diffusion region, n diffusion region, and p diffusion region, are formed to surround a hard macro and disposed in the order of this from the inside, and the inside two regions are disposed in an n well, and the outside two regions are disposed in a p well. A potential VSS is applied in the innermost p diffusion region and the outermost p diffusion region, and a potential VDD is applied in the two n diffusion regions disposed between these p diffusion regions. As a result, capacitors are formed between the n well and the p diffusion region formed in the n well, and between the p well and the n diffusion region formed in the p well, and therefore noise from outside is shielded, power source noise is absorbed, and malfunctions of the macro cell are prevented.

Semiconductor integrated circuit

Parallel redundancy encoding apparatus

In a semiconductor memory device composed of a set of SRAM cells connected in common to one another through a word line and a common connection line, a substrate potential generation circuit is connected to the word line to supply the SRAM cells through the common connection line with a substrate potential determined by a selected or a non-selected state of the word line. The substrate potential is equal to a ground potential in the selected state or is put into a negative potential in the non-selected state. The substrate potential is given to each of drive transistors included in each SRAM to reduce a leak current.

Semiconductor memory device capable of reducing a leak current flowing

An antenna adjuster includes a clamp unit 10 including an upper and a lower clamp disposed one above another in the height direction of a pole 2, the upper and lower clamps including paired clamp members 11 and 14, and 12 and 13, respectively. The paired clamp members face each other via the pole and are secured to the pole so as to be capable of position adjustment in the height and peripheral directions of the pole 2. An antenna mounting member 20 is mounted on the upper clamp member 11 for rotation about an elevation angle rotation axis member 23 and secured to the antenna 1. An azimuth angle adjusting member 30 is capable of being displaced through an elongate hole 32 formed in the upper clamp member 11 and a threaded hole 33 formed in the lower clamp member 13. An elevation angle adjusting member 40 is capable of being screwed through an engagement hole 42 formed in the antenna mounting member 20 and a nut portion 43 of the upper clamp 11 to push and pull the antenna mounting member 20.

Antenna adjuster

To realize an optical fiber connector coupled or decoupled by simple insertion and removal operation without applying ferrule connecting force to other elements (package board or back panel), the optical connector comprises a first housing (33); a second housing (34); a third housing (36) slidably housed within the second housing; a first engage mechanism (37, 38) provided between the second and third housings, for engaging these two housings when the first and third housings are not coupled; a second engage mechanism (39, 40) provided between the first and third housings, for engaging these two housings when the first housing is coupled to second and third housings; a first release member (41) provided for the first housings, for releasing the first engage mechanism when the third housing is engaged to the first housing; and a second release member (42) provided for the second housing, for releasing the second engage mechanism when the second housing is coupled to the third housing or the first housing is decoupled from the second and third housings. Further, to allow the optical connector to be preferably applicable to a plug-in connector with the smallest possible dimensions and with the highest possible package density, a novel connector floating structure, a novel slidable ferrule supporting structure, a strong optical plug connecting mechanism, a reliable optical plug or jack insertion structure, a cleanable and replaceable connector jack, etc. are also disclosed.

Optical jack for plug-jack optical connector

A plug (2) that includes a plug frame (7) is inserted into an opening of a housing (4) and is retained by a pair of spring-like detent pieces (6) extending into the opening. Projecting portions (6a) on the detent pieces engage recess portions (15) on right and left hand sides of the plug frame. A cylindrical lug (13) is slidably mounted on the plug frame and includes an opening portion (14) and inclined surfaces (17) to permit plug removal. The inclined surfaces (17) serve as cams to lift the projection portions (6a) out of the recess portions (15) when the lug is moved rearwardly. A stopper (3) is insertable into the plug frame to block such rearward sliding motion of the lug on the frame to prevent removal of the plug from the housing. The stopper may include a locking inward projection (3d) for engaging a hole (13b) bored in the lug to block rearward motion of the lug on the plug frame. Alternatively, the stopper may include outwardly projecting resilient stepped pieces (3i, 3j) that fit into the hole in the lug (13). Rearward sliding motion of the lug on the frame is enabled by pressing the pieces (3i, 3j) inwardly.

Mechanism for preventing detachment of a plug

The sleeve holder for an optical connector capable of preventing slip-off or disconnecting of the sleeve holder from a housing and eliminating breaking of a split sleeve due to the increase of an insertion force of the ferrule by maintaining always no-load state for engaging pieces. A tube-shaped main body inserted and held in the housing is mounted therein with a slider slidable in an axis direction. A split sleeve inserting and holding the ferrule is mounted at the insides of a tube body and the slider fixedly engaged coaxially with the main body, and such mount of the split sleeve together with the slider is slidable by a predetermined stroke in the axis direction.

Sleeve holder for optical connector

Optical connector

Optical connector for connecting a plurality of optical plugs to a

An adapter for an optical connector including securing first and second adapter elements which are opposed to each other and a sleeve holder having an alignment sleeve therein, which is sandwiched between said adapter elements, wherein each adapter element has a seat which is in contact with part of the sleeve holder for sandwiching said sleeve therebetween, the sleeve holder has a pair of metallic sleeve holder elements, one of the sleeve holder elements being pressure fitted to the other sleeve holder element so that it will not be moved relative the other sleeve holder element, the sleeve holder has on the periphery thereof in the intermediate position along the length thereof a flange which is complimentary in shape with the seat of each adapter element.

Adapter for optical connector having float-type sleeve holder and panel

Growing community of inventors

Tokyo, Japan

Yasuhiro Ando