Olympus Optical Company, Ltd.

Sanyo Denki Co., Ltd.

Toshio Shinohara

Makoto Yoshinaga

Shinroku Sogi

Ikuo Tawara

Takayuki Aihara

Yoshio Nakajima

Nagahiro Gocho

Atsuo Goto

Masao Izawa

Ichiro Sawamura

Shin-ichi Kamachi

Toshiki Ogawara

Shinichiro Hattori

Ryo Fujimori

Kensaku Miyazaki

Heihachi Arima

Michihiro Suzuki

Shin-ichiro Hattori

Masao Usikubo

The present invention provides a mounting structure of a rotary shaft of rotary electric machinery in which it is possible to cope with vibration of the rotary shaft in an axial direction with a low parts count. A fitting groove into which a portion of a rear side stopper is fitted is formed at a rear end portion of the rotary shaft. A rear side stopper has three projecting chips fitted into the fitting groove and three leaf spring chips in contact with an inner ring of a rolling bearing forming a bearing structure. The rear side stopper has a structure in which the rear side stopper generates spring force for restoring an original shape thereof when the rear side stopper is compressed in an axial direction of the rotary shaft. The rear side stopper is disposed in a compressed state between a wall face surrounding the fitting groove and the inner ring of the rolling bearing.

Mounting structure of rotary shaft of rotary electric machinery

In an apparatus for preserving different kinds of reagents to be selectively delivered for performing different test items in an automatic chemical analyzer, the reagents are contained in respective vessels which are placed on a turntable rotatably arranged in a compartment inside of which is kept at a low temperature, beside each reagent container is movably arranged a plug plate having an elastic plug secured thereto and a movable lever is arranged to engage with any one of the plug plate so as to remove the plug out of an opening of the reagent vessel only when a probe of a delivery device is moved through the opening.

Apparatus for preserving liquid in automatic analyzer

In an automatic serum applicator so adapted as to insert blade tips of a serum applicating member into sera filled in sample trays for applying sera to said blade tips and place said blade tips onto carrier to apply said sera, an automatic applicator with serum drying-preventive mechanism adapted in such a manner that a water-absorptive sheet impregnated with water is placed in a case for accommodating sample trays, a lid covering said case is arranged in a freely openable-closable condition and said lid is opened only when the serum is to be applied to the applicating member, thereby preventing sera contained in sample trays from being dried.

Automatic serum applicator with serum drying-preventive mechanism

A liquid feeder comprises a liquid suction and delivery pump which withdraws a liquid such as a culture solution, buffer solution, enzyme solution or the like which is retained in a liquid storage container as refrigerated or at a reduced temperature and delivers it through a flexible tube for injection into a culture vessel located within an incubator. The tube is inserted into an inner pipe and is sealingly secured thereto. The inner pipe is detachably and hermetically mounted in an outer pipe which extends through and is secured to a wall forming an environment isolating layer of the incubator. An eccentric crankpin which is driven by a motor is connected through a link with another crankpin having a greater eccentricity, the latter crankpin being driven for rotation to cause a reciprocatory rotating motion of a driven shaft about its own axis through an angular extent of less than 180.degree.. The motion of the driven shaft is effective to selectively switch the discharge port of a pair of liquid supply tubes to a position over a single vessel. The motor also drives a cam which causes a vertical motion of a drive shaft which is also angularly driven by a cam groove, the drive shaft being effective to cause a three dimensional motion of the discharge port of a single liquid supply tube for injection into a pair of vessels.

Liquid feeder for automatic culture apparatus

A liquid feeder comprises a motor which drives a cam causing a vertical motion of a drive shaft which is also angularly driven by a cam groove, the drive shaft being effective to cause a three dimensional motion of the discharge port of a single liquid supply tube for injection into a pair of vessels.

An apparatus for liquid disposal and distribution in automatic culture system comprises a first turntable carrying a plurality of culture vessels disposed in an array on a common circle thereon, and a second turntable carrying a plurality of centrifuge tubes disposed in an array on a common circle thereof. The apparatus comprises a pipette holding arm which is disposed so that its free end is angularly movable between one of the culture vessels and one of the centrifuge tubes. The free end of the arm has attached thereto a tapered cylinder which detachably receives a pipette. A fixed displacement pump is connected with the cylinder, which is movable along the path of rotation, along which are disposed a pipette holder, a pipette remover and a liquid disposal pot. The apparatus also comprises a rotary and elevating mechanism associated with the arm. In this manner, the apparatus is capable of transferring a specimen being cultured from a culture vessel to a centrifuge tube, distributing grown cells from the tube into culture vessels and disposing unnecessary liquid. In addition, the apparatus is capable of agitating a culturing solution within the culture vessel to render the cells into suspension.

Apparatus for liquid disposal and distribution in automatic culture

An apparatus for handling a centrifuge tube in an automatic culture system includes a centrifuge, above which is disposed a centrifuge tube carrying turntable which is intermittently driven through a given angular increment. Disposed at an equal spacing on and around the periphery of the turntable are centrifuge tube holder mechanisms each carrying a centrifuge tube holder. Also disposed in surrounding relationship with the turntable and at given positions where the latter comes to a stop are a plurality of processing stations including a centrifuge delivery unit which automatically delivers a centrifuge tube into the holder, a liquid disposal unit for disposing unnecessary culture solution from the centrifuge tube which has been subjected to the action of the centrifuge, a discharge unit for discharging a used centrifuge tube subsequent to the completion of the culturing operation, a transfer unit for transferring a centrifuge tube between the centrifuge holder mechanism and a holder receiver located within the centrifuge. As the turntable is incremently driven, the centrifuge tube is successively conveyed through a culture treatment and a centrifuge tube processing position.

Apparatus for handling centrifuge tubes in automatic culture system

An electrophoretic apparatus comprising a pair of endless belts for conveying a film into and out of the apparatus, filter paper supports on which edge portions of filter paper sheets are placed and filter paper retainers arranged above the filter paper supports. The electrophoretic apparatus is arranged that, after the film is conveyed into the apparatus by means of endless belts, the film is moved upward by moving the filter paper supports upward and thereby holding the edge portions of film between the filter paper supports and filter paper retainers, edge portions of film are pulled in the direction opposite to each other and, then, the film is energized, the electrophoretic apparatus being thereby arranged that the film is energized in the state that it is free from slack so that favorable fractionated patters are obtained.

Electrophoretic apparatus

A pipette exchange apparatus for use in a system for automatically culturing a biotissue or a cell includes a pipette mounting device for mounting a dividing and injecting means, a pipette supply device and a pipette feeding device.

Pipette exchange apparatus

An automatic culture apparatus includes an airtight casing, a culture vessel platform, a culture observation platform and a separation/distribution work platform disposed in layered configuration with suitable vertical spacings between them. A drive system for the apparatus comprises an opening formed centrally in each of the platforms; a culture vessel carrier for conveying a culture vessel to each of the platforms through the openings; a transfer arm for loading and unloading a culture vessel on or from the carrier and any one of the platforms; a first drive mechanism for operating the carrier and the transfer arm; and a second drive mechanism for driving any one of the platforms. The second drive mechanism is mounted hermetically in the casing. By operating suitable drive mechanisms to actuate the various parts, a culture vessel may be automatically transferred and distributed on each of the platforms without causing contamination in a safe and efficient manner, for automatic growth of the medium being cultured under an optimum environment.

Drive system for automatic culture apparatus

Tissues or cells of a living body, especially a human body, are automatically and successively cultivated in a nutrient solution filled culture container disposed in a gas-sealed culture box by detecting, within the culture box, a multiplication condition of the tissues or cells and culture conditions which are represented by temperature, humidity and gaseous atmosphere in the culture box and pH value of the nutrient solution, controlling the culture conditions and apparatus for subculture of the tissues or cells within the culture box in accordance with the information detected.

Method for automatically and successively cultivating tissues or cells

A screen microscope comprising a projection screen arranged on an arm of the microscope and a plural number of reflecting mirrors arranged in the arm and arranged to project an image of an object obtained by the microscope onto the screen through the reflecting mirrors. The screen microscope is arranged so that the observing direction by the screen is approximately same as the observing direction through an eyepiece.

Screen microscope with variable illumination

An apparatus for automatically cultivating tissues or cells of a living body comprises a main body the inside of which is maintained in a predetermined atmosphere by an atmosphere control means. A container containing the tissues or cells and a nutrient solution is disposed in the main body and cultivated or multiplied tissues or cells in the container divided and fed for subculture into a plurality of empty cultivating containers disposed in the main body by an operating means which performs necessary operations for subculture. The atmosphere control means and the operating means are totally controlled by an apparatus control means.

Growing community of inventors

Chofu, Japan

Toshio Shinohara