Mitsubishi Denki Kabushiki Kaisha

Nec Corporation

Koganei Corporation

Mitsubishi Electric Corporation

Takayuki Nakano

Yasuhisa Tamagawa

Yuuki Kubota

Yoshiyuki Taguchi

Masahito Kato

Shuji Urasaki

Osamu Hayashi

Tetsuyuki Kurata

Shigeru Makino

Shintaro Minami

Makoto Kamozawa

A recommended order quantity determining deviceincludes a recommended order quantity determination unit. The recommended order quantity determination unitdetermines a recommended order quantity of each commodity from a required quantity of the commodity expressed by a decimal, depending on an order unit of the commodity. The recommended order quantity determination unitdetermines the recommended order quantity of each commodity, depending on a total required quantity of a commodity category including the commodity.

Recommended order quantity determining device, recommended order quantity determination method, and recommended order quantity determination program

A first safety stock quantity calculation unitcalculates a safety stock quantity of a commodity at a first elapse time that is a time when a unit delivery time period has elapsed from one delivery time, the unit delivery time period being a unit of a delivery interval. A second safety stock quantity calculation unitcalculates a safety stock quantity of the commodity at a second elapse time that is a time when a coverage time period has elapsed from the delivery time, the coverage time period being a period combining a plurality of unit delivery time periods and determined depending on the commodity, the plurality of unit delivery time periods each being the unit delivery time period. A recommended order quantity calculation unitcalculates a recommended order quantity of the commodity, based on the safety stock quantity of the commodity at the second elapse time. In the case where prediction is made that a stock quantity at the first elapse time is less than the safety stock quantity at the first elapse time, the second safety stock quantity calculation unitcalculates a safety stock quantity of the commodity at a time when the coverage time period has elapsed from the first elapse time.

A recommended SKU number calculation unitcalculates a recommended number of SKUs on the basis of a number of SKUs recommended in the past. A recommended SKU number transmission unittransmits the calculated recommended number of SKUs to a store terminal. In addition, in the case where an adopted number of SKUs sent back from a store in response to the transmitted recommended number of SKUs changes continuously and in a consistent trend, the recommended SKU number calculation unitchanges the recommended number of SKUs for the store, in accordance with the trend.

SKU number determination server, system, method, and program

The object of the invention is to provide a method for cleaning circulation water, which reduces the cost of operation and maintenance as much as possible, without a cumbersome cleaning operation such as by detaching electrode plates from an electrolysis cleaning tank and removing scale from inside the tank, and to provide a device used in this method. Accordingly, the present invention provides a method for cleaning circulation water, comprising the steps of flowing circulation water to be cleaned between electrode plates placed in a face-to-face manner between one another; and applying DC voltage between the electrode plates, allowing one or more metal ions contained in the circulation water to be precipitated onto the negative electrode plates by electrolysis, to clean the circulation water, wherein the electrode plates used are made of titanium plates, and wherein a desired amount of current flows, while an anodized oxide coating formed on the surface of the positive electrode plates is compulsively subject to dielectric breakdown by increasing the voltage applied to the anodized oxide coating. FIG.is a representative drawing.

Method and device for cleaning circulation water

A method of purifying cooling water which requires the lowest maintenance and management cost without the need for a cumbersome cleaning operation for removing scale in an electrolytic purifying vessel by taking out the electrodes from the electrolytic purifying vessel, and an apparatus therefor are provided. In the method of purifying circulating cooling water by applying a DC voltage across opposing electrodes while flowing water to be treated therebetween, so that ions in the water are electrolytically precipitated on the surfaces of electrodes on the negative pole side, thereby purifying the water to be treated, the electrodes comprise titanium and have an oxide film preformed by heating having a thickness of 5 nm to 130 nm thereon, and electric current is flown between the electrodes in an amount large enough to apply a voltage capable of dielectrically breaking down the oxide film on the surfaces of electrodes on the positive pole side.

Method of purifying water and apparatus therefor

Provided is a compact and bright imaging optical system having a high resolution. The imaging optical system includes three reflectors composed of a first reflector (), a second reflector (), and a third reflector () that are arranged in this order on an optical path of incident ray so as not to block the incident light. In the imaging optical system, in which light beams reflected by the three reflectors form an image plane (), a convex mirror is used for any one of the first reflector () and the third reflector () and a concave mirror is used for the other thereof, and vertexes of a triangular dipyramid () are defined in terms of a central chief ray () by an appropriate point on the central chief ray () that is incident to the first reflection surface, a reflection point of each central chief ray on the first to third reflection surfaces, and an image forming point of the central chief ray. A plane containing three reflection points of the central chief ray on the first to third reflection surfaces coincides with a bonding plane between two triangular pyramids forming the triangular dipyramid ().

Imaging optical system

Disclosed is an image capturing apparatus comprising a primary mirror 1 that has a surface which is a section of a surface cut out from a paraboloid with a single focus; a secondary mirror 2 that has a surface which is a section of a surface cut out from a hyperboloid with two foci; and a photodetector 3 which converts the light signal coming from the secondary mirror 2 into an electric signal. The secondary mirror 2 is placed in a position where one of its foci and the focus of the primary mirror 1 match with each other. The photodetector 3 is placed near the other focus of the secondary mirror 2. By using two mirrors, the light from the object is led to the photodetector 3 without being shaded.

Image capturing apparatus

A bright wide-angle catoptric system is provided which will not deteriorate the picture quality of images. The wide-angle catoptric system includes, successively from an object, a secondary reflecting mirror having a concave surface, a primary reflecting mirror having a convex surface and a tertiary reflecting mirror having a concave surface, and produces images by reflecting the luminous flux from the object at the primary reflecting mirror, the secondary reflecting mirror and the tertiary reflecting mirror successively. The system also includes a diaphragm arranged in close proximity to the primary reflecting mirror so as to have an optical axis pass through the center of the diaphragm; the optical axis is a straight line connecting the curvature center of the primary reflecting mirror to the curvature center of the secondary reflecting mirror. The tertiary reflecting mirror has its curvature center decentered from the optical axis in the direction of lesser astigmatism.

Wide-angle catoptric system

A field flattener having a function of flattening a bent image surface on which an image is formed through an optical system, is composed of a material of which a refractive index is equal to or larger than 2. A sectional configuration of the field flattener cut in an optical-axis direction containing the optical axis is formed to take a stepped shape toward its peripheral edge from the optical axis. An axial height of the stepped portion configuring the surface in the optical-axis direction in this stepped shape is set so as to equal to or larger than twice a wavelength of beams to be used.

Field flattener for flattening a bent image surface

An infrared transparent optical element for use as an optical window for an infrared imaging camera includes an infrared transparent substrate, an antireflection film, and a protective film of a polymer material. The infrared transparent substrate has first and second major surfaces opposite each other, and the antireflection film is disposed on each of the first and second major surfaces of the substrate. The protective film is on an outer surface of the antireflection film on the first major surface of the substrate.

Infrared transparent optical element and infrared imaging camera using the same

An infrared optical system for infrared cameras has a convex lens held by a holding member composed of a low-dispersion material that transmits infrared light. A stop for restricting light beams entering the convex lens is disposed on an object side from the convex lens. An aberration correcting plate for reducing spherical aberration is provided in the vicinity of the stop. A field flattener, the thickness of which changes along image height to offset curvature of field, is disposed on an image side of the convex lens.

Growing community of inventors

Tokyo, Japan

Takayuki Nakano