公开(公告)号：US4672494A

公开(公告)日：1987-06-09

申请号：US640595

申请日：1984-08-14

申请人： Nobuaki Furuya ,  Yasuhiko Nakayama ,  Yoshio Watanabe

发明人： Nobuaki Furuya ,  Yasuhiko Nakayama ,  Yoshio Watanabe

IPC分类号： G11B5/127 ,  G11B5/187 ,  G11B5/23

CPC分类号： G11B5/1278 ,  G11B5/187

摘要： In a magnetic head for perpendicular magnetization recording of a main magnetic pole exited type, a high permeability magnetic thin layer is held at its top portion by nonmagnetic supporter and the thin layer is closed by a first high permeability block. The thus constructed main magnetic pole is surrounded by a second high permeability block, and a third high permeability block is located in facing relation to the main magnetic pole and second high permeability material. This magnetic head has high recording and reproducing efficiency and well-shielded from external magnetic field. Some structural improvements are also provided so that leakage of magnetic flux, disconnection and short circuit of a coil are avoided.

摘要翻译： 在用于主磁极退出型的垂直磁化记录的磁头中，高磁导率磁性薄层通过非磁性支撑体保持在其顶部，薄层被第一高磁导率封闭。 这样构成的主磁极被第二高磁导率块包围，第三高磁导率块与主磁极和第二高磁导率材料相对置。 该磁头具有高的记录和再现效率，并且与外部磁场良好的屏蔽。 还提供了一些结构改进，以避免线圈的磁通泄漏，断线和短路。

公开(公告)号：US4627086A

公开(公告)日：1986-12-02

申请号：US772692

申请日：1985-09-05

申请人： Yasuo Kato ,  Yoshio Watanabe ,  Seiichi Murayama

发明人： Yasuo Kato ,  Yoshio Watanabe ,  Seiichi Murayama

IPC分类号： H01J35/00 ,  H01J35/22 ,  H05G2/00 ,  H05H1/24 ,  G21B1/00

CPC分类号： H05G2/003 ,  H05H1/52

摘要： A plasma X-ray source is operable, like the plasma focus type source, to generate impulse discharge through a gas filled in a discharge tube. A relatively small amount of the gas is continuously supplied to and evacuated from the discharge tube in accordance with an occurrence frequency of discharge, without operating evacuation and filling of the gas at each cycle of discharge, under the regulation to make constant the pressure within the discharge tube, thereby eliminating the time for exchange of gas contaminated by discharge, reducing the amount of gas used, and improving reproducibility of discharge.

摘要翻译： 等离子体X射线源像等离子体聚焦型源一样可以通过填充在放电管中的气体产生脉冲放电。 根据排放的发生频率，相对少量的气体从放电管被连续地供给并排出，而在每次排放循环期间不进行排气和填充气体的操作，以使排气管内的压力恒定 放电管，从而消除了排放污染的气体的交换时间，减少了使用的气体量，提高了排放的再现性。

公开(公告)号：US4587453A

公开(公告)日：1986-05-06

申请号：US516913

申请日：1983-07-25

申请人： Tetsuo Ono ,  Yoshio Watanabe ,  Hiromitsu Matsuno ,  Yasuo Kato ,  Seiichi Murayama ,  Shigeo Mikoshiba

发明人： Tetsuo Ono ,  Yoshio Watanabe ,  Hiromitsu Matsuno ,  Yasuo Kato ,  Seiichi Murayama ,  Shigeo Mikoshiba

IPC分类号： H01J61/52 ,  H01J61/30 ,  H01J61/72 ,  H01J61/34

CPC分类号： H01J61/30 ,  H01J61/72

摘要： A low-pressure mercury vapor discharge lamp comprising an envelope forming a gas-tight closed space and a pair of inner tubes provided in the closed space and having an end thereof sealed at the first end of the outer envelope, the other end thereof being opened into the closed space, and electrodes provided at the sealed end sides in the inner tubes. The temperature of the coldest spot of the envelope is in a range between 45.degree. C. and 65.degree. C. at an ambient temperature of 25.degree. C.

摘要翻译： 一种低压汞蒸汽放电灯，包括形成气密封闭空间的封套和设置在封闭空间中的一对内管，其一端在外封套的第一端密封，其另一端开口 并且设置在内管的密封端侧的电极。 在25℃的环境温度下，封套的最冷点的温度在45℃至65℃的范围内。

公开(公告)号：US4438373A

公开(公告)日：1984-03-20

申请号：US383944

申请日：1982-06-01

申请人： Yoshio Watanabe ,  Mikiya Yamane ,  Teruichi Tomura

发明人： Yoshio Watanabe ,  Mikiya Yamane ,  Teruichi Tomura

IPC分类号： H01J61/10 ,  H01J61/92 ,  H05B41/16

CPC分类号： H01J61/92 ,  H01J61/103

摘要： A low pressure metal vapor discharge lamp has a double-tube type discharge vessel consisting of a fully closed outer glass bulb and an inner glass tube substantially coaxially disposed in the outer glass bulb, the inner glass tube being closed at its fixed end and opened at its free end. The space within the discharge vessel is filled with a small amount of a metal and a rare gas of a low pressure. A single cathode is disposed within the space inside the inner glass tube, while a plurality of anodes are disposed in the annular space between the inner glass tube and the outer glass bulb. According to the invention, a number of discharge channels corresponding to that of the anodes are formed between the single cathode and respective anodes, via the opening end brim of the inner glass tube. In operation, anode oscillations take place alternately in respective anodes to cause a self-excitation switching operation, so that a plurality of plasmas are formed. Further, in order to avoid flickering of the output light of the lamp, which is attributable to the irregular fluctuation of the plasmas, means are provided for stably fixing the discharge channels to respective constant positions. The means for fixing the discharge channels may be in the form of axial notches formed in the opening end brim of the inner glass tube, corresponding to the anodes, or a partition plate disposed at the opening end of the inner glass tube and adapted to separate the discharge channels from each other.

公开(公告)号：US4420223A

公开(公告)日：1983-12-13

申请号：US325383

申请日：1981-11-27

申请人： Yoshio Watanabe ,  Nobuo Iijima

发明人： Yoshio Watanabe ,  Nobuo Iijima

IPC分类号： G02B7/00 ,  G02B7/182 ,  G03F9/00 ,  G02B5/08

CPC分类号： G02B7/182

摘要： An optical apparatus wherein a mirror is mounted on a stage. On such stage a supporting portion is provided and the mirror is fixed such to supporting portion at a single portion of the mirror. At the free end portions of the mirror, which are not fixed to the stage, the end surface is in contact with a buffering member.

摘要翻译： 一种其中镜子安装在舞台上的光学装置。 在这种台阶上，设置支撑部分，并且反射镜被固定成在镜子的单个部分处的支撑部分。 在镜子的未固定在舞台上的自由端部，端面与缓冲构件接触。