专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4967120A Electron gun assembly of color ray tube 失效
标题翻译：电子枪组装的彩色射线管
公开(公告)号：US4967120A
公开(公告)日：1990-10-30
申请号：US484004
申请日：1990-02-23
申请人： Takashi Katsuma , Hideo Mori , Toshio Shimaohgi , Naoaki Umezu
发明人： Takashi Katsuma , Hideo Mori , Toshio Shimaohgi , Naoaki Umezu
IPC分类号： H01J29/50
CPC分类号： H01J29/503 , H01J2229/4841 , H01J2229/4865 , H01J2229/4868 , H01J2229/4872
摘要： In an electron gun assembly of an in-line type, electron beams emitted from cathode pass through first, second and third grid electrodes and are accelerated and controlled by the electrodes. The accelerated and controlled electron beams are converged by a fourth grid electrode structure and are also focused on the phosphor screen by fifth and sixth grid electrodes. The fourth grid electrode structure is comprised of first to third electrode segments having apertures through which electron beams pass. The first and third electrode segments is maintained at a variable potential which is varied in accordance with a deflection of the electron beams and the second electrode segment is maintained at a constant potential.

2. 发明授权

US06628038B1 Resolver using sheet coil 有权
标题翻译：旋转变压器使用板卷
公开(公告)号：US06628038B1
公开(公告)日：2003-09-30
申请号：US09868929
申请日：2001-07-16
申请人： Toru Shikayama , Akihiko Maemura , Takashi Katsuma
发明人： Toru Shikayama , Akihiko Maemura , Takashi Katsuma
IPC分类号： H02K122
CPC分类号： G01B7/30 , G01D5/2086 , G01P3/49 , Y10S310/06
摘要： A disklike rotor is placed with air gaps between disklike stators. The disklike rotor has a sheet coil attached to its sides, on which are formed the secondary coil pattern of a rotary transformer and a resolver excitation phase pattern. A sheet coil having the secondary coil pattern of the rotary transformer is attached to the stator opposed to the secondary coil pattern on the rotor, while a sheet coil having a resolver detection phase pattern is attached to the stator opposed to the resolver excitation phase pattern on the rotor. This resolver using a sheet coil is inexpensive and small-sized, decreases angular errors, and avoids the decrease in detection voltage. The variation in amplitude of flux linkage can be limited if there is misalignment of a sheet coil.
摘要翻译：圆盘状转子放置在圆盘状定子之间带有气隙。盘状转子具有附接到其侧面的片状线圈，在其上形成旋转变压器的次级线圈图案和旋转变压器激励相位图案。具有旋转变压器的次级线圈图案的片状线圈被安装在与转子上的次级线圈图案相对的定子上，而具有旋转变压器检测相位图案的片状线圈被安装在与旋转变压器激励相位图案相对的定子上转子。使用片状线圈的该解算器便宜且小型化，减小了角度误差，并且避免了检测电压的降低。如果片状线圈存在未对准，则可以限制磁链的振幅变化。

3. 发明授权

US4719378A Brushless motor having permanent magnet rotor and salient pole stator 失效
标题翻译：具有永磁转子和凸极定子的无刷电机
公开(公告)号：US4719378A
公开(公告)日：1988-01-12
申请号：US899752
申请日：1986-08-21
申请人： Takashi Katsuma , Masao Kitoh
发明人： Takashi Katsuma , Masao Kitoh
IPC分类号： H02K29/00 , H02K29/08 , H02K29/06
CPC分类号： H02K29/08
摘要： In a brushless motor, the number of magnetic poles P and the number of salient poles S are identified by:P=2.times.(m.times.k+l)S=2.times.m.times.kwherein m represents the number of phases and k represents an integer greater than 2. The windings wound about the k adjoining salient poles are made to belong to the same phase, but adjacent poles are oppositely wound.
摘要翻译：在无刷电动机中，磁极数P和凸极数S由下式表示：P = 2x（mxk + 1）S = 2xmxk其中，m表示相数，k表示大于2的整数。围绕k个邻接的凸极缠绕的绕组被制成属于同一相位，但相邻的极相对缠绕。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式