Asahi Kogaku Kogyo Kabushiki Kaisha

Hoya Corporation

Nippon Shokubai Co., Ltd.

Pentax Corporation

Oki Electric Industry Co., Ltd.

Honda Giken Kogyo Kabushiki Kaisha

Mitsubishi Denki Kabushiki Kaisha

Nippon Steel Sumitomo Metal Corporation

Oki Semiconductor Co., Ltd.

Other

Nippon Steel Corporation

Dai Nippon Printing Co., Ltd.

Asahi Kasei Kogyo Kabushiki Kaisha

Calsonic Kansei Corporation

Nisshin Steel Co., Ltd.

Yasuhiro Yamamoto

Koichi Sato

Tahei Morisawa

Hideki Oishi

Shuji Shimizu

Jiro Iriguchi

Makoto Mogamiya

Yasuhiro Shingai

Takahiro Yamauchi

Tetsuya Abe

Osamu Shimizu

Shuzo Seo

Yuichi Kurosawa

Masato Okabe

Hironori Kamiyama

Yoshikazu Miyawaki

Tetsuya Yokoyama

Yuudai Yamashita

Teiji Miwa

Daigo Hoshino

Naoki Koshikawa

Ryoichi Aoyama

Masafumi Inoue

Satoshi Takaku

Toshio Onodera

Tadashi Ajima

Akira Watanabe

Yasuhiro Yoshida

Hiroshi Ogawa

Yuji Tanaka

Masaaki Mihara

Kunio Goto

Masaaki Sugino

Tomoshi Futatsuya

Yoshikuni Mori

Masao Baba

Atsushi Komatsu

Shinpei Watanabe

Hirokazu Maeda

Tomohiro Ogata

Masakazu Muneshima

Shigeo Kaibuki

Sadao Douchi

David W Clem

Masayasu Arakawa

Saburo Nakahara

Kazuhiko Isoda

Yu Sasaki

Atsushi Andoh

Kunio Nokajima

Yuji Ono

Yorihito Okuda

Yohji Akazawa

Katsumi Kawamoto

Takuya Sugai

Akira Shigaki

Sinji Murayama

Katsuyuki Takezaki

Yasutaka Kawaguchi

Ryuuji Ninomiya

Mituaki Hirasaka

Yuji Ikeda

Yoshimasa Oota

Tetuo Yamada

The rotary inertial mass damper has a configuration in which the rotary shaft of the oil-pressure motor rotates due to oil pressure of operating oil that is extruded from an oil chamber through reciprocating movement of the piston rod, and viscosity resistance is produced in operating oil that circulates in the connection pipes.

Rotary inertial mass damper

A threaded connection for steel pipe with improved sealing performance is provided. A threaded connection () for steel pipe includes a pin () and a box (). The outer diameter of the box () is smaller than 108% of the outer diameter of a steel-pipe body (). The pin () includes a pin lip () including a first seal surface (), a male thread () constituted by a single-stage tapered thread, and a second seal surface (). The box () includes a first seal surface (), a female thread () constituted by a single-stage tapered thread, and a box lip () including a second seal surface (). When assembled, the first seal surfaces () are in contact with each other and the second seal surfaces () are in contact with each other. A portion of the male thread () located near the end thereof close to the pin lip () includes a plurality of thread root surfaces extending parallel to the pipe axis (CL) and having the same diameter. A portion of the female thread () located near the end thereof close to the box lip () includes a plurality of thread root surfaces extending parallel to the pipe axis (CL) and having the same diameter.

Threaded connection for steel pipe

A film transfer tool has a case main body, a supply bobbin drive shaft driving a supply bobbin holding an unused transfer tape therearound, a take-up bobbin drive shaft driving a take-up bobbin taking up a used portion of the transfer tape therearound, a rotational coupling mechanism coupling the supply bobbin drive shaft and the take-up bobbin drive shaft together rotationally, and a reverse rotation preventive mechanism preventing a reverse rotation of the rotational coupling mechanism. The reverse rotation preventive mechanism has a rolling gear coupled to a rotational system made up of the supply bobbin drive shaft, the take-up bobbin drive shaft and the rotational coupling mechanism, moving gears moving over a predetermined range around the rolling gear and meshing with the rolling gear, and locking projections disposed to confront a reverse rotating direction of the rolling gear to lock the moving gears.

Film transfer tool

Provided are amorphous silica particles for application to industrial fields where there are increasing desires for high purity and colorlessness. The amorphous silica particles are produced through the steps of hydrolysis of an alkoxide, vacuum drying, and firing. The amorphous silica particles have been reduced in coloration and in Fe content, which is causative of coloration of the silica, and can meet the desires. The amorphous silica is characterized by having an Fe content of 20 ppm or less.

Amorphous silica and process for producing same

A tightening tool such as a torque wrench is provided in which electric power can be fed to an electronic circuit with eliminating the need for a battery and achieving daily maintenance-free. In the tightening tool, when a tightening torque has reached a set torque value and a torque limiter is actuated, an electronic circuit unit that has obtained a detection signal outputted from a torque limiter actuation detection unit outputs a tightening completion signal. The tightening tool has a power generation unit for feeding electric power to the electronic circuit unit at least during the actuation of the torque limiter. The power generation unit performs photovoltaic power generation, electromagnetic induction power generation, power generation by conversion from mechanical energy into electrical energy, or temperature difference power generation.

Tightening tool

A tubular threaded joint is constituted by a pin and a box each having a contact surface comprising an unthreaded metal contact portion including a seal portion and a shoulder portion and a threaded portion. Of the contact surface of at least one of the pin and the box, the surfaces of the seal portion and the shoulder portion has a first lubricating coating in the form of a solid lubricating coating, and the surface of the threaded portion or the entire surface of the contact surface has a second lubricating coating selected from a viscous liquid lubricating coating and a solid lubricating coating. The first lubricating coating has a coefficient of friction which is higher than that of the second lubricating coating, and the second lubricating coating is positioned on top in a portion where both the first lubricating coating and the second lubricating coating are present.

Tubular threaded joint having improved high torque performance

An optimum low-pass filter effect according to various photographing condition parameters related to photographing conditions is obtained with flexibility without forcing the user to perform a troublesome manual operation in a photographing apparatus which drives an image sensor to obtain an optical low-pass filter effect. The photographing condition parameter setters set parameters related to photographing conditions. The image sensor drive controller changes the drive range of the image sensor and the optical low-pass filter effect, which are defined by the image sensor driver, based on the photographing condition parameters set by the photographing condition parameter setters.

Photographing apparatus and photographing control system

In a photographing apparatus and a photographing control system, an image sensor drive controller drives an image sensor in a direction which is different from the direction of an optical axis of a photographing optical system via an electromagnetic drive system in accordance with a first drive signal, which is generated by a first drive signal generator, and a second drive signal, which is generated by a second drive signal, during a period of exposure of the image sensor, and drives the image sensor in the direction which is different from the direction of the optical axis of the photographing optical system via the electromagnetic drive system in accordance with the first drive signal, which is generated by the first drive signal generator, during the period of signal readout of the image sensor.

A box protectorfor protecting the inner surface of a boxof a threaded joint for pipes having a female threaded portion and a shoulder surfacewith the shoulder surface being sloped by an angle &#x3b8; with respect to the direction perpendicular to the pipe axis has a male threaded portionwhich threadingly engages with at least a portion of the complete threads of the female threaded portion of the box and a shoulder surfacewhich sealingly contacts the shoulder surfaceof the box to form a first seal portion, and the shoulder surfaceis sloped by an angle &#x3b8;P (&#x3b8;P&#x3e;&#x3b8;) with respect to the direction perpendicular to the pipe axis. The protector has a circumferential groovein its outer peripheral surface in the vicinity of the shoulder surfaceand an elastic seal ringwhich contacts the shoulder surfaceof the boxand forms a second seal portion.

Box protector for a threaded joint for pipes

In a photographing apparatus and a photographing control system which drive an image sensor (moving member) to obtain an optical low-pass filter effect, an exposure time setter sets an exposure time; a drive cycle setter sets the drive cycle of the moving member so that the exposure time, which is set by the exposure time setter, becomes an integer multiple of the drive cycle; a moving member drive controller drives the moving member and controls the operation thereof via the moving member driver so that the moving member traces a predetermined path an integer number of times in a plane orthogonal to an optical axis within the exposure time, which is set by the exposure time setter, based on the drive cycle, which is set by the drive cycle setter.

Photographing apparatus and photographing control system with low-pass filter effect

A digital camera is provided that includes a first wireless communication module and image data processor. The first wireless communication module transmits image data to a monitor device via wireless communication. The image data processor processes image data before transmitting it to the monitor device via the wireless communication module. The image data processor has a first mode in which the image data are compressed at a predetermined compression ratio when transmitting a through-the-lens image to the monitor device, and a second mode in which the image data are compressed less than the predetermined compression, including zero compression, while carrying out at least one of reducing a frame rate compared to the first mode or extracting part of an image comprising the image data.

Digital camera

An imager is provided having an image-capturing sensor, a focusing detector, and a flicker detector. The image-capturing sensor captures a subject image with a rolling shutter and outputs image data. The focusing detector determines whether a subject image is in focus of the image-capturing sensor using the output image data. The flicker detector detects a flicker in the output image data. The focusing detector uses horizontal data without vertical data from the image data so as to determine whether a subject image is in focus, when the flicker detector detects a flicker.

Imager capturing an image with a rolling shutter using flicker detection

A correction-term adder 1 compares a maximum value max(V*) with an absolute value of a minimum value min(V*). The correction-term adder 1 selects a signal 1&#x2212;max(V*) when the maximum value max(V*) is larger than the absolute value of the minimum value min(V*), on the other hand, selects a signal &#x2212;1&#x2212;min(V*) when the absolute value of the minimum value min(V*) is larger than the maximum value max(V*). Thereby, a signal of correction amount &#x3b1; is calculated. Moreover, the correction-term adder 1 produces a triangular-wave-shaped signal k(max(V*)+min(V*)) by multiplying a gain k by an addition signal max(V*)+min(V*) of the maximum value max(V*) and the minimum value min(V*). This triangular-wave-shaped signal k(max(V*)+min(V*)) is synchronized with the correction amount &#x3b1;. The correction-term adder 1 produces a correction amount &#x3b2; by selecting smaller one in absolute value between the triangular-wave-shaped signal k(max(V*)+min(V*)) and the correction amount &#x3b1;, and adds the correction amount &#x3b2; to the voltage command values V*, V*, V*.

Method of controlling power conversion device

A digital camera is provided that includes a camera body and a monitor device. The camera body includes an imaging module, an image stabilization module, a first connector half and a first wireless communication module. The monitor device is detachable from the camera body and includes a monitor, a second connector half complemental to the first connector half and a second wireless communication module complemental to the first wireless communication module. An operation of the image stabilization module is suspended when monitor device is detached from the camera body.

The torque tool device includes a torque tool and an information processing terminal. The torque tool is capable of measuring the torque value at which a bolt or the like was tightened and then transmitting the measured torque value via wireless communication unit and the information processing terminal has information processing unit receiving the measured torque value and determining whether the torque value is acceptable.

Torque tool device

Growing community of inventors

Tokyo, Japan

Yasuhiro Yamamoto