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An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 6243439 | CT scanning apparatus 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 ... | 06/05/2001 |
| 6219401 | Panoramic radiographic apparatus and digital sensor cassette used for same apparatus 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, wher... | 04/17/2001 |
| 6173035 | Panoramic radiographic apparatus and digital sensor cassette used for same apparatus 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, wher... | 01/09/2001 |
| 5993209 | Periodontal pocket measurement apparatus 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 slida... | 11/30/1999 |
| 5980248 | Motor controller for a dental handpiece 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 rev... | 11/09/1999 |
| 5902105 | Dental treatment apparatus with a root canal length measurement function 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 a... | 05/11/1999 |
| 5897315 | Handpiece having a root canal length measurement function 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 mount... | 04/27/1999 |
| 5695493 | Laser surgical unit 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 ti... | 12/09/1997 |
| 5519751 | Medical X-ray image processing apparatus 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 ... | 05/21/1996 |
| 5506879 | Planigraphic X-ray apparatus 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 adjust... | 04/09/1996 |
| 5461233 | Medical X-ray image detecting device and a medical X-ray tomographing apparatus comprising same 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, ... | 10/24/1995 |
| 5374266 | Medical laser treatment device 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... | 12/20/1994 |
| 5355398 | Rotational tomographic X-ray apparatus with planigraph function 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... | 10/11/1994 |
| 5348552 | Laser surgical unit 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 ti... | 09/20/1994 |
| 5331166 | Dental X-ray image detecting device with an automatic exposure function 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-r... | 07/19/1994 |
| 5308238 | Dental handpiece holder and treatment assembly by use thereof 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 sect... | 05/03/1994 |
| 5295833 | Dental root canal diagnostic and treating equipment 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 know... | 03/22/1994 |
| 5244389 | Dental handpiece holder 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 sect... | 09/14/1993 |
| 5211556 | Root canal meter 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 interrelati... | 05/18/1993 |
| 5195114 | Digital panoramic radiographic apparatus 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 th... | 03/16/1993 |
| 5138166 | Medical X-ray image detecting device 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 distribut... | 08/11/1992 |
| 5096419 | Apparatus and method for detecting an apical position 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 characterize... | 03/17/1992 |
| 5093852 | Medical panoramic radiographing device 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 determ... | 03/03/1992 |
| 5078711 | Laser irradiation device capable of varying irradiation angle 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 char... | 01/07/1992 |
| 5058147 | Dental panoramic/cephalo X-ray photographing device 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 ... | 10/15/1991 |
| 4955042 | Dental radiographic apparatus for photographing entire jaws 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-r... | 09/04/1990 |
| 4947926 | Investment compound for use in precision casting mold An investment compound for use in a precision casting mold comprises MgO powder and Al2 O3 powder as main constituents in such a manner that the MgO powder and/or the Al2 O3 powder are or is in the range of 100 ... | 08/14/1990 |
| 4947245 | Image picking-up and processing apparatus 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 tra... | 08/07/1990 |
| 4907251 | Patient positioning device in medical panorama X-ray photographing apparatus 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 to... | 03/06/1990 |
| 4849859 | Laser-type handpiece 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 alo... | 07/18/1989 |
| 4836603 | Treatment chair assembly 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 t... | 06/06/1989 |
| 4826431 | Medical laser handpiece 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 mean... | 05/02/1989 |
| 4809311 | X-ray diagnostic apparatus 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 ... | 02/28/1989 |
| 4804329 | Connecting device for an illuminant handpiece 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 supp... | 02/14/1989 |
| 4762165 | Arc melting and casting method and apparatus thereof 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 d... | 08/09/1988 |
| 4761719 | Dental lighting device 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 ... | 08/02/1988 |
| 4744752 | Dental handpiece control device 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 ai... | 05/17/1988 |
| 4661967 | Dental radiographic apparatus for photographing entire jaws 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-r... | 04/28/1987 |
| 4658669 | Vertical movement and fixture device 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 an... | 04/21/1987 |
| 4647108 | Device for controlling headrest of treatment equipment 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 ba... | 03/03/1987 |
