Ricoh Company, Ltd.

Canon Kabushiki Kaisha

Hitachi, Ltd.

Hitachi Global Life Solutions, Inc.

Hitachi-johnson Controls Air Conditioning, Inc.

Hiroshi Kusumoto

Tadashi Sano

Tatsuaki Nagano

Mitsuhiro Matsuzawa

Hiroshi Kubo

Takuro Sekiya

Yohei Osanai

Satoshi Narai

Akira Hirose

Sachio Sekiya

Yoko Kokugan

Michiharu Watanabe

Tatsuo Fujii

Toshiyuki Horikawa

Hiroaki Matsushima

Eiji Ogata

Masashi Kohchi

Mari Uchida

Keiko Oka

Kazuhiro Tsuchihashi

Masafumi Kishi

Masahiro Taniuchi

Norikazu Sasaki

Yoshikazu Ishiki

Noriyuki Tokura

Tsunayuki Itagaki

A refrigerant quantity diagnosis device includes: an evaluation value calculation part that calculates a refrigerant quantity index evaluation value including a ratio of a measured refrigerant quantity index value to a reference refrigerant quantity index value in each of a normal period and a determination period; and a refrigerant quantity diagnosis part that diagnoses a refrigerant quantity based on the refrigerant quantity index evaluation value. The evaluation value calculation part calculates a first refrigerant quantity index evaluation value in the normal period and a second refrigerant quantity index evaluation value in the determination period, based on respective reference refrigerant quantity index values having respective values associated with an operating condition of interest, and respective measured refrigerant quantity index values. The refrigerant quantity diagnosis part compares information on the first refrigerant quantity index evaluation value with that on the second one and thereby diagnoses the refrigerant quantity.

Refrigerant quantity diagnosis device, refrigerant system, and refrigerant quantity diagnosis method

A performance diagnosis device for an air conditioner includes: a data collection unit that collects and records operation data on the air conditioner; an equipment characteristic database that is a data group covering operation conditions meeting the specifications of the air conditioner; a reference data creation unit that calculates individual characteristic curved surface data by using the operation data possessed by the data collection unit and the equipment characteristic database; and a performance evaluation unit that compares part of the operation data possessed by the data collection unit with the individual characteristic curved surface data to evaluate the performance of the air conditioner, in which the individual characteristic curved surface data is corrected with respect to the equipment characteristic database so as to correspond to the operation data possessed by the data collection unit. Thus, it is possible to detect the performance deterioration of the air conditioner regardless of the magnitude of the air conditioning load and to clarify the necessity of the maintenance work for the air conditioner.

Performance diagnosis device and performance diagnosis method for air conditioner

A solid-liquid separation device performs dehydration/deoiling from a mixture of water and/or oil and a solid. Substance A is capable of dissolving water and oil. The device includes substance B circulated while generating phase change in a closed system; a compressor; a first heat exchanger exchanging condensation heat of substance B and evaporation heat of substance A; a second heat exchanger exchanging evaporation heat of substance B and condensation heat of substance A; and a treatment tank for mixing substance A with an object to be treated; substance A having been evaporated while separated from the water or the oil in the first heat exchanger, and condensed in the second heat exchanger. The first heat exchanger is lower than the treatment tank in a vertical direction, and a connection port of the first heat exchanger and a lower portion of the treatment tank are connected with a flow path.

Solid-liquid separation device

To provide a solid-liquid separation system in which a stable operation can be continuously conducted and the introduction cost and the running cost can be suppressed, in cases where moisture or oil are separated from a substance containing moisture or oil by using changes in phase of a working fluid having a nature of dissolving moisture or oil in a liquid phase. Provided is a solid-liquid separation system in which a working fluid that dissolves moisture or oil in a liquid phase is liquefied and brought into contact with a solid substance to thereby allow the working fluid to contain moisture or oil that has been contained in the solid substance, and then the working fluid is vaporized to precipitate the moisture or oil, characterized in that the solid-liquid separation system is provided with a fluid circuit in which a high-temperature-side heat exchanger that vaporizes the working fluid by a refrigerant, a low-temperature-side heat exchanger that liquefies the working fluid by the refrigerant are connected to circulate the working fluid, and a refrigerating cycle in which a compressor, a condenser that exchanges heat with a heat source other than the working fluid, the high-temperature-side heat exchanger, an expansion mechanism, and the low-temperature-side heat exchanger are sequentially connected to circulate the refrigerant, and that the solid-liquid separation system includes a recovery operation mode in which the working fluid in a filling tank is vaporized, besides the solid-liquid separation. For performing the recovery operation mode, a second expansion mechanism is provided between the condenser and the high-temperature-side heat exchanger. The system is also characterized in that the fluid circuit is provided with a heating unit that does not use the refrigerant as a heat source.

Solid-liquid separation system

A setting apparatus which sets a detection region for a detection process of detecting a change of an image within a detection region corresponding to an object of detection inputs a first image in which the object of detection is present and a second image in which the object of detection is not present and determines the detection region from the first image and the second image such that the detection process may be performed on a detection region of a third image.

Setting apparatus which sets a detection region for a detection process

A measurement apparatus for measuring aberration based on return light of measuring light radiated to an object, includes a light source configured to emit the measuring light, a focusing unit configured to focus the measuring light on the object, an acquisition unit configured to acquire, from a storage unit, information indicating a state of the focusing unit corresponding to identification information of a specific object, and a control unit configured to control the focusing unit based on the acquired information indicating the state of the focusing unit.

Measurement apparatus, ophthalmologic imaging apparatus, control method, and storage medium

An image reading device, which can be included in an image forming apparatus, includes an image pickup device, a transparent member, a traveling body, and a housing. The traveling body includes a light source to emit light and guides the light reflected from a surface of the document to the image pickup device while moving in a sub scanning direction along the document surface on the transparent member. The housing accommodates the image pickup device and the traveling body, and includes a base member including a rectangular bottom surface and a side surface, and a rail member including a rail surface and a first vertical surface. The rail member further includes a fixing part that is a surface to be fixed to the bottom surface of the base member and to extend from one end of the rail member in the sub scanning direction to the other end.

Image reading device and image forming apparatus

A transport container comprising a spherical containerand a heat accumulating materialdisposed inside of the spherical container, wherein; the heat accumulating materialis provided with a space for holding a transported object therein, and the space is formed at the central part of the inside of the spherical container

Transport container, transporting method for the same, and constant temperature transport container

An image reading apparatus configured to be disposed in an image forming apparatus. An image reading unit is configured to read an image from a document. A light permeable member has a surface configured to face the image on the document, the surface having a roughness of at most 0.5 S. A coating is disposed on the surface of the light permeable member, the coating configured to prevent adherence of contaminants on the surface.

Image reading apparatus and recording apparatus including image reading apparatus

A substrate alignment apparatus which aligns and fixes a substrate on a substrate stage includes a chucking pad fixed on the substrate stage to chuck and fix the substrate, a moving unit which moves the substrate with respect to the substrate stage such that a mark on the substrate stage and a mark on the substrate coincide with each other, and a determination unit which evaluates and controls a relative position between the chucking pad and the substrate after movement by the moving unit and determines whether the chucking pad can normally chuck the substrate.

Substrate alignment apparatus and method, and exposure apparatus

A replaceable unit determination mechanism includes a detection mechanism which has a lever member which is arranged so that the lever member comes into contact with a claw-shaped member when a rotatable member is rotating. The detection mechanism generates a detection signal when the replaceable unit is placed at a predetermined position and stops generating the detection signal when the lever member comes into contact with the claw-shaped member after the replaceable unit is placed in the predetermined position. The determination mechanism also includes a determination part which determines that the replaceable unit is correctly placed in the predetermined position when the detection signal is supplied from the detection mechanism and which determines that the replaceable unit is a new replaceable unit when the detection mechanism stops generating the detection signal. The claw-shaped member is broken when the claw-shaped member comes into contact with the lever member of the detection mechanism.

Replaceable unit determination mechanism

A device for use in electrophotographic equipment for collecting toner particles which are removed from a photoconductive element, or image carrier, after imagewise transfer. A collecting roller is located in a portion of a toner tank remote from the bottom of the tank, while a partition formed with a plurality of holes is situated below and in close proximity to the collecting roller. The partition and the bottom of the toner tank define therebetween a space for accommodating the toner being collected. The toner removed from the photoconductive element drops onto the partition. In a first stage, the toner drops through the holdes of the partition to accumulate in the space between the partition and the bottom of the toner tank. In a second stage wherein the toner accumulates to a level above the partition, the toner on the partition is forced out by the collecting blade which is caused into an oscillatory motion by the collecting roller and is thereby dropped over the front end of the partition to accumulate in the toner tank at the front of the partition. In a third stage wherein the toner reachs the collecting blade, the weight of the toner acts on the blade for the first time, and the toner fills up the space remaining in the upper portion of the toner tank.

Toner collecting device for electrophotographic equipment which reduces

A cleaning device for use in a laser printer, electrophotographic copier, facsimile apparatus or similar image recorder and having a cleaning blade for removing toner remaining on a photoconductive drum of the image recorder. Stubs individually extend outward from lower portions of opposite ends of a toner collecting tank. The tank is rotatably supported through the stubs by a frame on which the drum is rotatably mounted. Retaining members are securely mounted on the frame so as to retain the tank in position when the latter is rotated toward the drum. A pair of holder support members are provided in upper portions of opposite ends of the tank to support pins engageable with the retaining members of the frame and a blade holder which holds the cleaning blade. While the pins extend outward away from each other from the outer surfaces of the holder support members, the blade holder is rotatably mounted on shafts which extend inward toward each other from the inner surfaces of the holder support members in alignment with the pins.

Growing community of inventors

Tokyo, Japan

Hiroshi Kusumoto