Fuji Electric Co., Ltd.

Adtec Engineering Co., Ltd.

Uacj Corporation

Qingdao Haier Washing Machine Co., Ltd.

Aqua Co., Ltd

Wataru Nakagawa

Michihiko Tsuruoka

Osamu Kashimura

Atsushi Fukumoto

Satoshi Tanaka

Kenji Yoshida

Hiroki Sato

Kazunori Hashimoto

Takashi Nakanishi

Naohiro Kounosu

Takashi Onishi

Tatsuya Ide

Masahiro Uno

Noriomi Miyoshi

Masashi Machida

Mutsumi Nagumo

Satoru Sakaue

Katsumi Momose

Katsuya Sangu

Ryoichi Ida

Junichi Mochizuki

Yoshikazu Bamba

Tomonari Kawaguchi

Tamotsu Kawamura

Takaaki Yonezawa

Tadao Hashimoto

Hiromi Suzawa

Mitsuru Ohishi

Naohiro Konosu

An aluminum alloy fin material for a heat exchanger is made of an aluminum alloy including 0.05 mass % to 0.5 mass % of Si, 0.05 mass % to 0.7 mass % of Fe, 10 mass % to 2.0 mass % of Mn, 0.5 mass % to 1.5 mass % of Cu, and 3.0 mass % to 7.0 mass % of Zn, with the balance being Al and unavoidable impurities. In an L-ST plane thereof, second-phase grains having an equivalent circle diameter equal to or more than 0.030 &#x3bc;m and less than 0.50 &#x3bc;m have a perimeter density of 0.30 &#x3bc;m/&#x3bc;mor more, second-phase grains having an equivalent circle diameter equal to or more than 0.50 &#x3bc;m have a perimeter density of 0.030 &#x3bc;m/&#x3bc;mor more, and specific resistance thereof at 20&#xb0; C. is 0.030 &#x3bc;&#x3a9;m or more.

Aluminum alloy fin material for heat exchanger and method for manufacturing the same

A washing machine, which does not have a narrowed portion on a throw-in and takeout route of washings, so that washings can be thrown in and taken out smoothly. The washing machine of the present invention comprises: an inner tub for accommodating washings; an outer tub for accommodating the inner tub; a housing comprising a housing body that is configured to accommodate the outer tub and is open at the upper end, a fixed lid fixed to the upper end of the housing body, and a movable lid that is movably disposed on the fixed lid, makes the upper end of the housing body selectively open towards the outside, and is capable of forming a lid side opening for making an inner tub side opening formed on the upper end of the inner tub open upwards; and a water supply unit provided on the fixed lid and used for supplying water to the inner tub, wherein the inner circumference of the lid side opening has a shape and size that make the inner tub side opening substantially open upwards.

Washing machine

Provided are an aluminum alloy brazing sheet for heat exchangers, which exhibits excellent formability and brazeability, and an advantageous process for producing the same. The aluminum alloy brazing sheet for heat exchangers according to the present invention is configured such that: the aluminum alloy composition of a core material and the aluminum alloy composition and temper of a filler material are respectively controlled; and a core material portion of the brazing sheet has a specific electric resistivity at room temperature and a specific dispersion ratio of second phase particles. The brazing sheet is configured to further exhibit certain properties in terms of a work hardening exponent (n-value) where a nominal strain is within a range of 1%-2% and in terms of a push-in depth when a penetration crack is generated in a punch stretch forming test using a round-head punch having a diameter of 50 mm.

Aluminum alloy brazing sheet for a heat exchanger, and process for producing the same

X-rays are irradiated at the boardfrom the X-ray generatorthe image of the standard marksare projected on the fluorescence screenthe resulted image is photographed simultaneously by one shot of the visible light CCD cameraand finally processed by the control deviceto simultaneously determine the position of the standard marksandthe alignment marks depicted on the photo masksandare imprinted on the dry film resist layersrespectively based on the positions of the standard marksandby irradiating X-rays through the sets of mirrorson the dry film resist layers

Marking apparatus used in a process for producing multi-layered printed circuit board

A projection exposure apparatus and a method for producing a printed circuit board wherein, the whole pattern including piecesand couponsto be exposed on a print circuit boardis depicted on a photo maskdivided in six areas by divide line, the exposure will be made with respect to the each divided area of the photo maskmounted on a movable photo mask stagewith using a masking devicemasking other area than the exposing area.

Projection exposure apparatus and method for producing a printed circuit board

A marking apparatus for forming alignment marks, which improves the alignment accuracy of each layer in the production of multi-layered printed circuit boards. An X-ray generator irradiates X-rays at a standard mark in a core board of a board , and projects the image of the standard mark on a fluorescence screen . The image is captured by a visible light CCD camera , thereby the position of the standard mark is detected. Using the detected position of the standard mark as an alignment reference, the apparatus irradiates ultra-violet rays at dry film resist layers via mirrors and , and imprints the marks emerged on photo masks and on the dry film resist layers , respectively.

A second torsional vibrator having an outer frame and a second torsional spring is formed on the outer side of a first torsional vibrator having a pair of torsional springs and a plate member (reflection mirror), with a second torsional vibrator being fixed by the fixed part. The resonant frequency for the first torsional vibrator is set higher than that for the second torsional vibrator. The outer frame in the second torsional vibrator is driven substantially at the resonant frequency of the first torsional vibrator by an electromagnetic or electrostatic force. As a result, it becomes possible to obtain a stable and large scanning angle by using only a small driving force.

Torsional vibrators and light deflectors using the torsional vibrator

An infrared gas analyzer, of compact and inexpensive design, has improved detection sensitivity. The infrared gas analyzer includes an infrared radiation source, a measuring cell, a reference cell, and a detector. The detector includes two detector cells in which the same species of gas, as the gas to be analyzed, is enclosed. A gas flow channel connects the detector cells to each other. Two thermal sensors are disposed in the gas flow channel, each of which further includes pairs of thermo-elements. The thermo-elements are arranged in such close proximity to each other, as to originate a thermal coupling between the pairing elements, and the thermo-element pairs are separated by a distance across which thermal coupling between the thermo-element pairs becomes insignificant. The detector detects, by the thermal sensors, a gas flow indicative of infrared absorption intensity difference between the measuring and reference cells.

Infrared gas analyzer

A Karman vortex flow meter for measuring the flow rate of a fluid under test in a pipeline having a base to be secured to the pipeline, and a vortex detector having an axis intended to intersect the pipeline. The vortex detector includes a post, a detector flange at least partially surrounding the post having a free surface, a columnar force receiving part extending from the post into the pipeline for producing a Karman vortex, and a strain detecting element coupled to the free surface for detecting the Karman vortex and producing an output signal corresponding the detected Karman vortex.

Karman vortex flow meter

A Karman vortex flow meter for measuring the flow rate of a fluid under test in a pipeline having a base to be secured to the pipeline, and a vortex detector having an axis intended to intersect the pipeline. The vortex detector includes a post, a detector flange at least partially surrounding the post having a free surface, a columnar force receiving part extending from the post into the pipeline for producing a Karman vortex, and a strain detecting element coupled to the free surface for detecting the Karman vortex and producing an output signal corresponding to the detected Karman vortex.

In a Karman vortex flow meter, the variation of pressure caused near both sides of a Karman vortex forming unit inserted into the stream of fluid is applied to an oscillating member which is oscillating in a self-excited mode at a resonance frequency, so that the vortex frequency; i.e., the volume flow rate is detected from the modulation of the resonance frequency which is caused by variation of pressure or density attributing to the vortexes formed.

The apparatus of the present invention detects the resonant frequency of a vibratory member in contact with the fluid in order to determine the density or pressure of the fluid. The vibratory member is disposed in a housing to form a cavity with no flow communication between the side of the vibratory member facing into the cavity and the other side of the vibratory member. The vibratory member is vibrated by an annular piezoelectric device which may be attached to one or both sides of the vibratory member. An amplifier and feedback circuit regulate the frequency of oscillation of the piezoelectric device to that of the resonant frequency. The piezoelectric device may be comprised of several separate sections or several sections with partial interruptions in the piezoelectric material. Instead of the vibratory member and the piezoelectric transducer combination, the vibratory member may be constructed from a single fixed piezoelectric device with another piezoelectric disc mounted thereon. In this configuration one of the devices is used to mechanically excite the other and through a feedback circuit establish the resonant frequency of the two laminated piezoelectric devices.

Vibration type transducer

A vibrating transducer for detecting the resonant frequency of a vibrating diaphragm and using that frequency to determine the pressure or density of a fluid contacting the diaphragm. The device includes a container having a diaphragm separating the cavity in the container into two chambers with the diaphragm preventing flow communication between the two chambers. A first fluid inlet in flow communication with the first chamber introduces fluid to the first chamber with that first chamber having an acoustic compliance less than the mechanical compliance of the diaphragm. The second fluid input is in flow communication with the second chamber and introduces fluid into the second chamber. By controlling the acoustic compliance of the chamber with respect to the diaphragm accurate measurements of the density or pressure of the fluid can be obtained.

Growing community of inventors

Tokyo, Japan

Wataru Nakagawa