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    Medical X-ray imaging apparatus
    2.
    发明授权
    Medical X-ray imaging apparatus 失效
    医用X射线成像仪

    公开(公告)号：US5604781A

    公开(公告)日：1997-02-18

    申请号：US598440

    申请日：1996-02-08

    申请人： Masakazu Suzuki ,  Keisuke Mori ,  Akifumi Tachibana ,  Kazunari Matoba ,  Hitoshi Asai ,  Kazuhisa Miyaguchi ,  Toshitaka Takeguchi

    发明人： Masakazu Suzuki ,  Keisuke Mori ,  Akifumi Tachibana ,  Kazunari Matoba ,  Hitoshi Asai ,  Kazuhisa Miyaguchi ,  Toshitaka Takeguchi

    IPC分类号： A61B6/00 ,  H04N5/32 ,  H05G1/60 ,  G01N23/04

    CPC分类号： H04N5/3205 ,  A61B6/501 ,  A61B6/585 ,  H04N5/361 ,  H04N5/3656 ,  H05G1/60 ,  H04N5/32 ,  Y10S378/901

    摘要： The present invention provides an X-ray tomographic imaging apparatus, wherein image degrading components caused by a CCD sensor (3c) or the like are reduced so as to obtain high-quality X-ray images. After tomographic imaging, dark current noise is eliminated by subtracting dark current correction data from a specific line of data among image data stored in an image memory. Next, sensitivity correction coefficients are prepared on the basis of data obtained when an X-ray beam having nearly uniform intensity distribution enters an X-ray imaging device 3. The image data obtained after dark current correction is then multiplied by the sensitivity correction coefficients. As a result, noise due to sensitivity variations or the like can be eliminated.

    摘要翻译： 本发明提供一种X射线断层成像装置，其中由CCD传感器（3c）等引起的图像劣化成分减少，以获得高品质的X射线图像。 在断层成像之后，通过从存储在图像存储器中的图像数据中的特定数据线减去暗电流校正数据来消除暗电流噪声。 接下来，基于在具有几乎均匀的强度分布的X射线束进入X射线成像装置3时获得的数据来准备灵敏度校正系数。然后将在暗电流校正之后获得的图像数据乘以灵敏度校正系数。 结果，可以消除由于灵敏度变化等引起的噪声。

    Medical X-ray imaging apparatus
    3.
    发明授权
    Medical X-ray imaging apparatus 失效
    医用X射线成像仪

    公开(公告)号：US5664001A

    公开(公告)日：1997-09-02

    申请号：US621015

    申请日：1996-03-22

    申请人： Akifumi Tachibana ,  Keisuke Mori ,  Masakazu Suzuki ,  Kazunari Matoba ,  Hitoshi Asai ,  Toshitaka Takeguchi ,  Kazuhisa Miyaguchi

    发明人： Akifumi Tachibana ,  Keisuke Mori ,  Masakazu Suzuki ,  Kazunari Matoba ,  Hitoshi Asai ,  Toshitaka Takeguchi ,  Kazuhisa Miyaguchi

    IPC分类号： A61B6/00 ,  A61B6/14

    CPC分类号： A61B6/14

    摘要： A medical X-ray imaging apparatus is provided, which comprises an X-ray source, an X-ray imaging device for detecting an image of X-rays having passed through a subject and a swivel member for-rotating the X-ray source and the X-ray imaging device around the subject. The X-ray imaging device comprises a CCD sensor for performing the TDI operation and a dosage sensor for detecting X-rays having passed. Dosage signal Y and transfer speed signal X corresponding to the frequency of a false vertical transfer clock are supplied to a divider, and control signal Z is outputted. When control signal Z is supplied to an X-ray control circuit via a delay circuit, the X-ray irradiation dosage of the X-ray source can be feedback-controlled properly.

    摘要翻译： 本发明提供一种医用X射线成像装置，其包括X射线源，用于检测穿过被检体的X射线的图像的X射线成像装置和用于使X射线源旋转的旋转构件，以及 被摄物体周围的X射线成像装置。 X射线成像装置包括用于执行TDI操作的CCD传感器和用于检测已经通过的X射线的剂量传感器。 对应于假垂直传送时钟的频率的剂量信号Y和传送速度信号X被提供给分频器，并且输出控制信号Z。 当通过延迟电路将控制信号Z提供给X射线控制电路时，可以适当地反馈控制X射线源的X射线照射量。

    Panoramic X-ray imaging apparatus
    4.
    发明授权
    Panoramic X-ray imaging apparatus 失效
    全景X射线成像仪

    公开(公告)号：US5600699A

    公开(公告)日：1997-02-04

    申请号：US598442

    申请日：1996-02-08

    申请人： Masakazu Suzuki ,  Keisuke Mori ,  Akifumi Tachibana ,  Kazunari Matoba ,  Hitoshi Asai ,  Kazuhisa Miyaguchi

    发明人： Masakazu Suzuki ,  Keisuke Mori ,  Akifumi Tachibana ,  Kazunari Matoba ,  Hitoshi Asai ,  Kazuhisa Miyaguchi

    IPC分类号： A61B6/00 ,  A61B6/14

    CPC分类号： A61B6/4233 ,  A61B6/14

    摘要： The present invention provides a panoramic imaging apparatus capable of obtaining a clear tomographic image even when the rotation speed of a swivel member changes. The clock for driving an FFT CCD device in accordance with the TDI method is set on the basis of the angular speed .omega. of the arm detected by a tachogenerator and a function value f (.theta.) which responds to the rotation angle .theta. of the swivel member detected by an angle detector and used to determine a tomographic orbit. The angle detector is provided with a cam having a shape having been set in accordance with the relationship between the rotation angle .theta. and the film feeding speed at the time of performing X-ray panoramic imaging by using photographic films. The signal of the angular speed .omega. and the signal of the function value f (.theta.) corresponding to the angle .theta. are added by an analog multiplier, and subjected to frequency modulation by a V/F converter to create a TDI clock.

    摘要翻译： 本发明提供了即使在旋转构件的转速变化时也能够获得清晰的断层图像的全景成像装置。 根据TDI方法驱动FFT CCD器件的时钟是基于由测速发电机检测到的臂的角速度ω和基于旋转构件的旋转角度θ的函数值f（θ）来设定的 由角度检测器检测并用于确定断层摄影轨道。 该角度检测器设有凸轮，该凸轮具有根据通过使用照相胶片进行X射线全景成像时的旋转角度θ和胶片输送速度之间的关系而设定的形状。 角速度ω的信号和对应于角度θ的函数值f（θ）的信号由模拟乘法器相加，并由V / F转换器进行频率调制以产生TDI时钟。

    X-ray image pickup apparatus for intraoral radiography
    5.
    发明授权
    X-ray image pickup apparatus for intraoral radiography 失效
    用于口腔内摄影的X射线摄像装置

    公开(公告)号：US06042267A

    公开(公告)日：2000-03-28

    申请号：US56935

    申请日：1998-04-08

    申请人： Tetsuhiko Muraki ,  Hitoshi Asai ,  Kazuhisa Miyaguchi ,  Akifumi Tachibana ,  Masakazu Suzuki ,  Susumu Kirimura

    发明人： Tetsuhiko Muraki ,  Hitoshi Asai ,  Kazuhisa Miyaguchi ,  Akifumi Tachibana ,  Masakazu Suzuki ,  Susumu Kirimura

    IPC分类号： A61B6/14 ,  G01T1/20 ,  G01T1/29 ,  G03B42/04 ,  H04N5/32

    CPC分类号： H04N5/32 ,  G01T1/2018 ,  G03B42/042 ,  A61B6/145

    摘要： A phosphor, an optical fiber plate containing lead particles, a CCD, and an X-ray shielding member consisting of copper tungsten are sequentially stacked on a substrate from an X-ray incident surface side and sealed in a container made of a light-shielding synthetic resin. The substrate has projecting portions projecting toward the direction of X-ray incident along three sides of the X-ray incident surface. Each of these projecting portions has an overhang portion projecting toward the optical fiber plate. The overhang portions are close to or in contact with corresponding side surfaces of the optical fiber plate so that the optical fiber plate is fixed at a predetermined position. The container has, in the inner surface, convex portions corresponding to the projecting portions, so the substrate is fixed in the container. The output signal from the CCD is sent to an external display unit via a cable extracted from the convex portion of the container through an FPC connector and an FPC provided on a surface opposite to the incident surface.

    摘要翻译： 含有铅粒子的荧光体，含有铜粒子的CCD和X射线屏蔽部件从X射线入射面侧依次层叠在基板上，并密封在由遮光体 合成树脂。 基板具有沿着X射线入射面的三面入射的X射线方向突出的突出部。 这些突出部分中的每一个具有向光纤板突出的突出部分。 突出部分靠近或与光纤板的相应侧表面接触，使得光纤板固定在预定位置。 该容器在内表面具有与突出部对应的凸部，因此将基板固定在容器中。 来自CCD的输出信号经由通过FPC连接器和设置在与入射面相反的表面上的FPC从容器的凸部抽出的电缆发送到外部显示单元。

    Dental X-ray image detecting apparatus and adaptor for same
    6.
    发明授权
    Dental X-ray image detecting apparatus and adaptor for same 失效
    牙科X线图像检测装置及适配器

    公开(公告)号：US6030119A

    公开(公告)日：2000-02-29

    申请号：US49740

    申请日：1998-03-27

    申请人： Akifumi Tachibana ,  Masakazu Suzuki ,  Hideki Yoshikawa ,  Susumu Kirimura ,  Tetsuhiko Muraki ,  Hitoshi Asai ,  Kazuhisa Miyaguchi

    发明人： Akifumi Tachibana ,  Masakazu Suzuki ,  Hideki Yoshikawa ,  Susumu Kirimura ,  Tetsuhiko Muraki ,  Hitoshi Asai ,  Kazuhisa Miyaguchi

    IPC分类号： A61B6/14 ,  G01T1/20 ,  G21K4/00

    CPC分类号： A61B6/145 ,  G01T1/2018

    摘要： An X-ray detecting element detects an image produced by X-ray irradiation. An apparatus case capable of being inserted into a mouth has an X-ray irradiation face having different dimensions in two directions perpendicular to each other, and houses the X-ray detecting element. A cable is connected to the apparatus case to transmit a signal from the X-ray detecting element to the outside of the apparatus case. The cable is drawn out from the apparatus case in a direction which is parallel with the X-ray irradiation face and perpendicular to the longitudinal direction of the X-ray irradiation face. According to this configuration, the cable does not obstruct the imaging operation in a course of imaging teeth in a mouth, particularly a molar portion. Therefore, an imaging operation can be easily conducted without giving the subject an unpleasant feeling.

    摘要翻译： X射线检测元件检测由X射线照射产生的图像。 能够插入到口中的装置壳体具有彼此垂直的两个方向上具有不同尺寸的X射线照射面，并容纳X射线检测元件。 电缆连接到装置壳体以将信号从X射线检测元件传输到装置壳体的外部。 电缆从与X射线照射面平行且垂直于X射线照射面的长度方向的方向从装置壳体中拉出。 根据这种结构，电缆在口腔，特别是摩擦部分的成像牙齿的过程中不妨碍成像操作。 因此，可以容易地进行成像操作，而不会给对象带来不愉快的感觉。

    Paper feed method and apparatus for a printer
    7.
    发明授权
    Paper feed method and apparatus for a printer 失效

    公开(公告)号：US5846007A

    公开(公告)日：1998-12-08

    申请号：US16640

    申请日：1998-01-30

    申请人： Takumi Nakayama ,  Hitoshi Asai

    发明人： Takumi Nakayama ,  Hitoshi Asai

    IPC分类号： B41J3/28 ,  B41J11/20 ,  B41J11/26 ,  B41J11/30 ,  B41J11/42 ,  B41J11/48 ,  B41J13/02 ,  B41J13/10 ,  B41J25/308 ,  B41J29/38 ,  B41J33/20 ,  B41J11/58

    CPC分类号： B41J33/20 ,  B41J11/20 ,  B41J11/26 ,  B41J11/30 ,  B41J11/42 ,  B41J11/48 ,  B41J13/02 ,  B41J13/103 ,  B41J25/308 ,  B41J29/38 ,  B41J3/28 ,  B41J3/283 ,  Y10S271/902

    摘要： It is an object of the present invention to prevent a sheet of continuous-form paper from slackening when it is fed back in a printer capable of feeding both sheets of continuous-form paper and cut-form paper. According to the method for feeding back a sheet of continuous-form paper (6) of the present invention, in a paper feed unit including a pin feed device (7) arranged in an upstream of the continuous-form paper feed passage and also including a friction feed device (4, 5) in which both the pin feed device (7) and the friction feed device (4, 5) feed the sheet of continuous-form paper (6) and a circumferential speed of the friction feed device (4, 5) is a little higher than that of the pin feed device (7), a first amount of feed is set by which the sheet of continuous-form paper is not loosened between the friction feed device (4, 5) and the pin feed device (7) and also a second amount of feed is set which is larger than a difference between an amount of feed of the friction feed device (4, 5) and an amount of feed of the pin feed device (7) when the sheet of continuous-form paper is fed back by the first amount of feed, and the sheet of continuous-form paper is fed back by the first amount of feed when both the friction feed device (4, 5) and the pin feed device (7) are simultaneously reversed, and the friction feed device (4, 5) is normally rotated by the second feed amount under the condition that the pin feed device is stopped. The sheet of continuous-form paper (6) is fed back by repeating the above reverse and the normal rotation.

    Paper feed method and apparatus for a printer
    10.
    发明授权
    Paper feed method and apparatus for a printer 失效
    打印机的送纸方式和装置

    公开(公告)号：US5713674A

    公开(公告)日：1998-02-03

    申请号：US647894

    申请日：1996-06-04

    申请人： Takumi Nakayama ,  Hironaga Hongawa ,  Masashi Matsumoto ,  Hirohito Mukaiyama ,  Hitoshi Asai ,  Mitsuru Shimono ,  Satoshi Sakai ,  Yasuhiro Matsue

    发明人： Takumi Nakayama ,  Hironaga Hongawa ,  Masashi Matsumoto ,  Hirohito Mukaiyama ,  Hitoshi Asai ,  Mitsuru Shimono ,  Satoshi Sakai ,  Yasuhiro Matsue

    IPC分类号： B41J3/28 ,  B41J11/20 ,  B41J11/26 ,  B41J11/30 ,  B41J11/42 ,  B41J11/48 ,  B41J13/02 ,  B41J13/10 ,  B41J25/308 ,  B41J29/38 ,  B41J33/20

    CPC分类号： B41J33/20 ,  B41J11/20 ,  B41J11/26 ,  B41J11/30 ,  B41J11/42 ,  B41J11/48 ,  B41J13/02 ,  B41J13/103 ,  B41J25/308 ,  B41J29/38 ,  B41J3/28 ,  B41J3/283 ,  Y10S271/902

    摘要： It is an object of the invention to prevent a sheet of continuous-form paper from slackening when it is fed back in a printer capable of feeding both sheets of continuous-form paper and cut-form paper. According to the method for feeding back a sheet of continuous-form paper (6) of the present invention, in a paper feed unit including a pin feed device (7) arranged in an upstream of the continuous-form paper feed passage and also including a friction feed device (4, 5) in which both the pin feed device (7) and the friction feed device (4, 5) feed the sheet of continuous-form paper (6) and a circumferential speed of the friction feed device (4, 5) is a little higher than that of the pin feed device (7), a first amount of feed is set by which the sheet of continuous-form paper is not loosened between the friction feed device (4, 5) and the pin feed device (7) and also a second amount of feed is set which is larger than a difference between an amount of feed of the friction feed device (4, 5) and an amount of feed of the pin feed device (7) when the sheet of continuous-form paper is fed back by the first amount of feed, and the sheet of continuous-form paper is fed back by the first amount of feed when both the friction feed device (4, 5) and the pin feed device (7) are simultaneously reversed.

    摘要翻译： PCT No.PCT / JP95 / 02060 Sec。 371日期1996年6月4日 102（e）日期1996年6月4日PCT提交1995年10月6日PCT公布。 公开号WO96 / 11111 日期1996年4月18日本发明的目的是防止一张连续形式的纸张在能够进给两张连续纸和切割纸的打印机中被反馈时松弛。 根据本发明的连续纸（6）的反馈方法，在包括布置在连续纸供给通道的上游的销钉供给装置（7）的送纸单元中，还包括 一个摩擦进给装置（4,5），其中销进给装置（7）和摩擦供给装置（4,5）都馈送连续纸（6）片和摩擦进给装置的圆周速度 4,5）比销钉装置（7）略高一点，设定第一量的进给量，通过该第一量的进给装置，连续纸张片材在摩擦输送装置（4,5）和 销进给装置（7），并且还设置第二数量的进给量，其大于摩擦进给装置（4,5）的进给量与销进给装置（7）的进给量之间的差异， 连续纸的纸张通过第一量的进料反馈，并且连续纸的纸张由第一个原料 摩擦进给装置（4,5）和销进给装置（7）同时反转时的进给量。