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1. 发明授权

US4963108A Marine contra-rotating propeller drive system 失效
标题翻译：海上反转螺旋桨驱动系统
公开(公告)号：US4963108A
公开(公告)日：1990-10-16
申请号：US442985
申请日：1989-11-28
申请人： Masatoshi Koda , Kazuyuki Araki
发明人： Masatoshi Koda , Kazuyuki Araki
IPC分类号： B63H5/10 , F16H1/22
CPC分类号： B63H5/10
摘要： A marine contra-rotating propeller system comprises a large gear driven by an engine, and a plurality of small gears disposed so as to respectively mesh with the large gear at a plurality of fixed positions along the circumference of the large gear. Planet gears are respectively mounted to the gear shafts of the small gears. A sun gear and an inner-toothed gear are respectively meshed with the planet gears. A rear propeller is mounted to an inner shaft serving as a gear shaft of the sun gear. A front propeller is mounted to a tubular outer shaft serving as a gear shaft of the inner-toothed gear. The present invention can eliminate, with the simple construction, the inconvenience caused by a differential planetary gear operations in the prior art, can derive a propeller efficiency to the maximum extent.
摘要翻译：一种海洋反转螺旋桨系统，包括由发动机驱动的大齿轮和多个小齿轮，所述多个小齿轮被设置成分别沿着大齿轮的圆周在多个固定位置与大齿轮啮合。行星齿轮分别安装在小齿轮的齿轮轴上。太阳齿轮和内齿齿轮分别与行星齿轮啮合。后螺旋桨安装在用作太阳齿轮的齿轮轴的内轴上。前螺旋桨安装到用作内齿轮的齿轮轴的管状外轴上。本发明可以通过简单的结构消除现有技术中的差速行星齿轮操作引起的不便，可以最大限度地获得螺旋桨的效率。

2. 发明授权

US08433033B2 Panoramic imaging apparatus 失效
标题翻译：全景成像设备
公开(公告)号：US08433033B2
公开(公告)日：2013-04-30
申请号：US12083777
申请日：2006-10-19
申请人： Yasuo Harata , Kazuyuki Araki , Koichi Ogawa , Tsutomu Yamakawa , Takashi Sue
发明人： Yasuo Harata , Kazuyuki Araki , Koichi Ogawa , Tsutomu Yamakawa , Takashi Sue
IPC分类号： A61B6/14 , G06K9/00
CPC分类号： A61B6/14 , A61B6/583
摘要： A panoramic imaging apparatus is provided, which is able to freely display a focus-optimized internal structural image of the tooth row depending on a position using image data acquired by only one-time X-ray panoramic imaging from an arbitrary section along a patient's tooth row.The panoramic imaging apparatus comprise an X-ray source (31) and a detector (32) outputting a digital electrical signal depending on an incident X-ray at a constant frame rate. This apparatus further comprises means (24) for moving a pair of the X-ray source and the detector around an object in a state where the X-ray source and the detector are opposed to each other with the object located therebetween, means (54) for sequentially storing, as frame data, the electrical signal outputted by the detector, means (56) for producing a panoramic image of a desired section of the object based on the frame data, and means (56, 57, 58) for producing a partial sectional image using the frame data, the partial sectional image being an image of a partial region specified on the panoramic image and being focused depending on a desired position in an imaging space.
摘要翻译：提供了一种全景成像装置，其能够根据使用从患者牙齿的任意部分仅通过一次X射线全景成像获得的图像数据的位置自由地显示齿列的焦点优化内部结构图像行。全景成像装置包括X射线源（31）和检测器（32），其以恒定的帧速率输出取决于入射的X射线的数字电信号。该装置还包括用于在X射线源和检测器彼此相对的状态下使一对X射线源和检测器围绕物体移动的装置（24），其中物体位于它们之间，装置（54）），用于将由检测器输出的电信号作为帧数据顺序存储，用于基于帧数据产生对象的期望部分的全景图像的装置（56），以及用于产生所述对象的装置（56,57,58）使用帧数据的部分剖面图像，部分截面图像是在全景图像上指定的部分区域的图像，并且根据成像空间中的期望位置进行聚焦。

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