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Kabushiki Kaisha Morita Seisakusho Patents
Assignee:
Kabushiki Kaisha Morita Seisakusho
Address:
Kyoto, JP
No. of patents:
123
Patents:


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Patent Number Title Of Patent Date Issued
D669180 Dental handpiece October 16, 2012
D657060 Dental rinsing unit April 3, 2012
D655929 Medical/dental chair March 20, 2012
D648026 Motor handpiece for root canal enlargement November 1, 2011
D272385 X-Ray apparatus for dental whole jaw January 24, 1984
D255622 Dental chair July 1, 1980
6243439 CT scanning apparatus June 5, 2001
A CT scanning apparatus in accordance with the present invention comprises an image pickup system having an X-ray source being rotated around an object and a two-dimensional X-ray image pickup portion disposed opposite to the X-ray source with the object therebetween and being rotated, a
6219401 Panoramic radiographic apparatus and digital sensor cassette used for same apparatus April 17, 2001
The panoramic radiographic apparatus of the present invention has a cassette holder capable of accommodating both a conventional film cassette and a digital sensor cassette loaded with an electric X-ray image detector, one at a time, in a rotary arm, wherein when a film cassette is m
6173035 Panoramic radiographic apparatus and digital sensor cassette used for same apparatus January 9, 2001
The panoramic radiographic apparatus of the present invention has a cassette holder capable of accommodating both a conventional film cassette and a digital sensor cassette loaded with an electric X-ray image detector, one at a time, in a rotary arm, wherein when a film cassette is m
5993209 Periodontal pocket measurement apparatus November 30, 1999
The periodontal pocket measurement apparatus of the present invention comprises a main handpiece unit provided with a cover member for covering the front end portion thereof, an operation member mounted at the front end of the cover member and being slidable in the longitudinal direction
5980248 Motor controller for a dental handpiece November 9, 1999
A motor controller for a dental handpiece comprising a torque detection means for detecting the load torque applied to a cutting tool, and a control means for stopping a cutting tool drive motor, reducing the rotation speed of the motor or temporarily reversing the motor when the det
5902105 Dental treatment apparatus with a root canal length measurement function May 11, 1999
A dental treatment apparatus with a root canal length measurement function comprising a cordless handpiece equipped with at least a cutting tool drive motor, a root canal length measurement circuit and a power supply battery, and a charger equipped with at least a charge circuit for
5897315 Handpiece having a root canal length measurement function April 27, 1999
The present invention discloses a handpiece having a root canal length measurement function, wherein a signal circuit, which is specifically provided for sending measurement signals from a root canal length measurement circuit to a measurement probe mounted on a head provided at the
5695493 Laser surgical unit December 9, 1997
In a laser surgical unit having a contact laser probe (1), a hydroxyl group (13) is included in the contact laser probe so that a laser beam is partially absorbed by the hydroxyl group (13) to heat the contact laser probe (1) for transmission to living tissue. Consequently, a coagulation
5519751 Medical X-ray image processing apparatus May 21, 1996
A medical X-ray image processing apparatus, comprising an X-ray sensor which converts an image of X-rays penetrated an object into an electric signal using a solid-state image sensor and a data processor which processes the electric signal to generate an electric image signal corresp
5506879 Planigraphic X-ray apparatus April 9, 1996
A planigraphic X-ray apparatus comprising a rotation mechanism for rotating a support member which supports an X-ray generator and an X-ray detection surface to rotate the X-ray generator and the X-ray detection surface around a subject, a position adjustment mechanism for setting the po
5461233 Medical X-ray image detecting device and a medical X-ray tomographing apparatus comprising same October 24, 1995
A medical X-ray tomographing apparatus, wherein the output end surfaces of a plurality of optical fiber bundles are optically coupled to the image pickup surfaces of vertically long solid-state image pickup devices, such as one-dimensional image sensors, and the input end surfaces of a
5374266 Medical laser treatment device December 20, 1994
A medical laser treatment device comprising a laser generation source and a laser handpiece which comprises a light-guiding fiber used to guide a laser beam irradiated from the laser generation source, a probe for guiding the laser beam having been guided by the fiber to an object to be
5355398 Rotational tomographic X-ray apparatus with planigraph function October 11, 1994
A rotational tomographic X-ray apparatus is disclosed as having an X-ray detection surface disposed parallel to a planigraphic plane selected as a subject to be photographed, and comprising a mechanism for linearly moving the X-ray generator and the X-ray detection surface of the apparat
5348552 Laser surgical unit September 20, 1994
In a laser surgical unit having a contact laser probe (1), a hydroxyl group (13) is included in the contact laser probe so that a laser beam is partially absorbed by the hydroxyl group (13) to heat the contact laser probe (1) for transmission to living tissue. Consequently, a coagulation
5331166 Dental X-ray image detecting device with an automatic exposure function July 19, 1994
A medical X-ray image detecting device arranged such that an X-ray image sensor comprising an x-ray fluorescent element, a solid-state image pickup device and a plurality of optical fiber bundles for optically connecting the fluorescent surface of the X-ray fluorescent element to the ima
5308238 Dental handpiece holder and treatment assembly by use thereof May 3, 1994
A dental handpiece holder adapted such that the length of the handpiece holder for holding and accommodating a dental handpiece is shortened in the axial direction, whereby the main unit of the handpiece can be attached to and detached from the joint section of the handpiece for the
5295833 Dental root canal diagnostic and treating equipment March 22, 1994
A dental root canal diagnostic and treating equipment with which specific position/s, which serve/s as the reference positions, can be set arbitrarily and such positions can be displayed. With the equipment, therefore, operation can be proceeded with knowledge of not only the positio
5244389 Dental handpiece holder September 14, 1993
A dental handpiece holder adapted such that the length of the handpiece holder for holding and accommodating a dental handpiece is shortened in the axial direction, whereby the main unit of the handpiece can be attached to and detached from the joint section of the handpiece for the
5211556 Root canal meter May 18, 1993
A root canal meter is disclosed, wherein measured data are compensated linearly or substantially linearly according to distance between tip of an electrode and apical position and thus compensated data are displayed. According to the invention interrelation between the position of the ti
5195114 Digital panoramic radiographic apparatus March 16, 1993
The apparatus of the present invention comprising a rotary means having an X-ray source disposed opposite to an X-ray image detection section for detecting the image of the X-ray which penetrated an object to be photographed, with the object positioned therebetween, and rotating the
5138166 Medical X-ray image detecting device August 11, 1992
A medical X-ray image detecting device wherein the fluorescent surface of a narrow belt-shaped X-ray fluorescen plate which emits light at the time of irradiation of X-ray through a slit is divided to rectangular units, optical fiber bundles are distributed alternately right and left and
5096419 Apparatus and method for detecting an apical position March 17, 1992
An apical position detection apparatus for detecting an apical position depending on the change in the impedance between a measuring electrode inserted in a root canal and an oral electrode connected to a soft oral tissue, the apparatus being characterized in that it comprises a signal
5093852 Medical panoramic radiographing device March 3, 1992
A medical panoramic radiographing device comprises in combination a mode selector which is used to select the panoramic radiographing mode, jaw joint radiographing mode and/or otolaryngological region radiographing mode, an X-ray irradiation timing determination means which is used to
5078711 Laser irradiation device capable of varying irradiation angle January 7, 1992
A laser irradiation device comprising an optical fiber, a contact probe which irradiates laser light from the irradiation end section thereof, and a holding member which coaxially secures the contact probe and the optical fiber. The device is further characterized in that the irradiation
5058147 Dental panoramic/cephalo X-ray photographing device October 15, 1991
A dental panoramic/cephalo X-ray photographing device being characterized in that an X-ray generator can be horizontally rotated by an electric drive means so that the X-ray irradiation axis of the X-ray generator is directed to a panoramic photographing cassette or a cephalo photographi
4955042 Dental radiographic apparatus for photographing entire jaws September 4, 1990
A dental radiographic apparatus for photographing the entire jaws in which the apparatus includes a rotary arm having an X-ray source at one end and an X-ray film cassette at the other end thereof and operating in the manner that a path of movement of X-ray beam with respect to the denta
4947926 Investment compound for use in precision casting mold August 14, 1990
An investment compound for use in a precision casting mold comprises MgO powder and Al.sub.2 O.sub.3 powder as main constituents in such a manner that the MgO powder and/or the Al.sub.2 O.sub.3 powder are or is in the range of 100 .mu.m or less in grain size and of 10% or more in weight
4947245 Image picking-up and processing apparatus August 7, 1990
An image picking-up and processing apparatus particularly suitable for use in dental treatment comprises a transmission and conversion section including an image sensor for detecting input light from an object, an objective lens, and a light guide for transmitting illumination light; a
4907251 Patient positioning device in medical panorama X-ray photographing apparatus March 6, 1990
A patient positioning device in a medical panorama X-ray photographing apparatus in which after data of the relative position of the subject to the X-ray photographing apparatus supplied from a sensor is compared with data of the relative position of a tomographic zone to the X-ray p
4849859 Laser-type handpiece July 18, 1989
A laser-type handpiece including a reflector pivotably connected inside a head section and a control sleeve which is connected to the reflector and fitted over the external circumference of the handpiece body so that the sleeve can move back-and-forth along the axis of the handpiece body
4836603 Treatment chair assembly June 6, 1989
A treatment chair assembly comprising a treatment chair and a chair base, the chair assembly being pivotally or swingably connected to a chair base, in which a chair elevating mechanism is housed, so that the chair can be turned upward from and downward to the chair base. With this treat
4826431 Medical laser handpiece May 2, 1989
A medical laser handpiece comprising a grip body, a semiconductor laser generator disposed in the grip body and an irradiation nozzle which is detachably cross-connected to the head of the grip body at an angle and includes a laser light transmitting means from the semiconductor laser
4809311 X-ray diagnostic apparatus February 28, 1989
A pre-ignition type X-ray apparatus including a mode changeover switch which changes a pre-heat mode to an X-ray irradiation mode and vice versa, a tube current control circuit for feedback control of the X-ray tube's filament heating current to a target value, and pre-heat control circu
4804329 Connecting device for an illuminant handpiece February 14, 1989
A connecting means for an illuminant handpiece being characterized in that the connecting device is adapted such that at least one of the electrical connections of the electric power receiving terminals of the illumination lamp and the electric power supply terminals is performed by fitt
4762165 Arc melting and casting method and apparatus thereof August 9, 1988
Metal material is melted by moving the magnetic flux of electromagnets virtually perpendicular to an arc column to apply Lorentz force to the arc column and the metal material so that the arc column can move over the metal material surface. The movement direction and speed of the arc col
4761719 Dental lighting device August 2, 1988
A dental lighting device arranged such that the light from a light source is reflected by a reflection plate and is cast into the inside of the mouth, wherein a mirror member used to look at the inside the mouth is provided in combination with a lighting device component so that the
4744752 Dental handpiece control device May 17, 1988
A control device for use in an air turbine dental handpiece comprising an air turbine which is integrated with a spindle supporting a cutting tool and is rotatably supported in a head housing by bearings, an air supply passage which supplies compressed air to the air turbine and an exhau
4665331 Brushless DC micromotor May 12, 1987
A brushless DC micromotor made up of a stator coil and a rotor housed inside thereof with magnet poles formed therein, which micromotor is characterized in that the stator coil is formed by coaxially winding more than one coil sheet formed on an insulating sheet, on which coil sheet a
4661967 Dental radiographic apparatus for photographing entire jaws April 28, 1987
A dental radiographic apparatus for photographing the entire jaws in which the apparatus includes a rotary arm having an X-ray source at one end and an X-ray film cassette at the other end thereof and operating in the manner that a path of movement of X-ray beam with respect to the denta
4658669 Vertical movement and fixture device April 21, 1987
A vertical movement and fixture device to be used for, for instance, a dental tomograph for photographing entire jaw including a vertical support having a vertical groove inside, a block base which is slidably fit in the groove and is fixed to a slider and a means for fixing and releasin
4647108 Device for controlling headrest of treatment equipment March 3, 1987
A device for controlling a headrest of a treatment equipment to be used for dental and medical treatment. The device comprises an arcuate support shaft connected to said headrest with the center of radius of curvature of the shaft positioned above said backrest, a guide sheath provided i
4641331 Automatic exposure device for a panoramic X-ray photographing device February 3, 1987
An automatic exposure device for obtaining X-ray pictures with superior quality and constant contrast by feedback of both tube voltage and tube current according to the residual X-ray dose which penetrates the body of a patient. This device is further characterized in that the feedback
4630862 Dental chair December 23, 1986
A dental treatment chair including a seat, a backrest tiltably attached to the seat, and a drive means for tilting the backrest. The chair includes a unit table which stays horizontal and moves and up and down as the backrest tilts, and the table is further connected to the backrest by a
4617837 Speed change device for medical handpiece October 21, 1986
A speed change device arranged such that a driving shaft connecting with a driver and a tool working shaft connected with a driven tool are connected with each other for transmission of torque in the no speed change mode or in the speed change (acceleration or deceleration mode and where
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