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1. 发明授权

US4933654A Polarized electromagnetic relay 失效
公开(公告)号：US4933654A
公开(公告)日：1990-06-12
申请号：US411313
申请日：1989-09-22
申请人： Masami Hori , Yoshinobu Okada , Norimasa Kaji , Hiromi Nishimura
发明人： Masami Hori , Yoshinobu Okada , Norimasa Kaji , Hiromi Nishimura
IPC分类号： H01H49/00 , H01H50/18 , H01H50/36 , H01H51/22 , H01H51/24
CPC分类号： H01H51/2245 , H01H2011/0087 , H01H50/36
摘要： A polarized electromagnetic relay having a pair of first and second pole members which are magnetized to opposite polarity by a permanent magnet coupled thereto and which define therebetween a magnetic gap into which the other end of the armature extends. The first pole member and the armature are magnetically coupled to the base so as to cause a magnet flux of the permanent magnet to circulate through the second pole member, the armature, the base, and the first pole member for attracting the armature to the second pole member. Upon energization of the coil, a resulting coil flux circulates through the armature, the base, and the first pole member in opposing direction to the magnet flux for attracting the armature to the first pole member. A cover and base of magnetic material is included to fit over the base and be magnetically coupled thereto. The second pole member is disposed adjacent to the inner wall of the cover so as to define therebetween an air gap which is cooperative with the second pole member, the armature, base, and the cover in order to circulate an additional coil flux in the opposing direction to the magnet flux across the second pole member and the armature upon energization of the coil, weakening the magnetic flux and therefore expediting the armature movement by the coil flux to thereby improve repsonse sensitivity.

2. 发明授权

US4826737A Method of using aluminum alloy as substrate for magnetic discs with enhanced magnetic recording density 失效
标题翻译：使用铝合金作为具有增强的磁记录密度的磁盘的基板的方法
公开(公告)号：US4826737A
公开(公告)日：1989-05-02
申请号：US882632
申请日：1986-07-07
申请人： Kazuo Yamada , Masahiro Tsuchiya , Hideaki Kakita , Reijiro Maruyama , Yoshinobu Okada , Yo Takeuchi
发明人： Kazuo Yamada , Masahiro Tsuchiya , Hideaki Kakita , Reijiro Maruyama , Yoshinobu Okada , Yo Takeuchi
IPC分类号： C22C21/06 , C22F1/047 , G11B5/73 , G11B5/84 , C22F1/04
CPC分类号： C22C21/06 , C22F1/047 , G11B5/7305 , G11B5/8404 , Y10S428/928 , Y10T428/12736 , Y10T428/12764
摘要： A substrate for a magnetic disc prepared from an aluminum alloy which consists essentially of from 3.0 to 5.0 percent, preferably from 3.5 to 4.5 percent, Mg, from 0.5 to 3.0 percent, preferably from 0.5 to 1.7 percent, Zn, and the balance Al and inevitable impurities. The inevitable impurities contain not more than 0.10 percent Si, not more than 0.10 percent Fe, not more than 0.01 percent, Mn, not more than 0.01 percent Cr, not more than 0.01 percent Ni, and not more than 0.01 percent Ti.The aluminum alloy substrate may also contain from 0.3 to 2.0 percent, preferably from 0.5 to 1.0 percent, Cu, and/or from 0.02 to 0.5 percent, preferably from 0.05 to 0.2 percent, Zr.The aluminum alloy substrate for a magnetic disc has a structure wherein fine and uniform intermetallic compounds are present in the matrix metal, with almost no non-metallic inclusions present therein, and which has high hardness and high strength, thereby making it possible to provide a magnetic disc (1) having improved surface smoothness and (2) of reduced thickness. The disc substrate can be coated to provide high density magnetic recording.
摘要翻译：一种由铝合金制成的磁盘用基材，其基本上由3.0％至5.0％，优选3.5％至4.5％的Mg，0.5％至3.0％，优选0.5％至1.7％的Zn，其余为Al和不可避免的杂质。不可避免的杂质含有不超过0.10％的Si，不超过0.10％的Fe，不大于0.01％的Mn，不大于0.01％的Cr，不超过0.01％的Ni和不大于0.01％的Ti。该铝合金基材还可含有0.3-2.0％，优选0.5-1.0％的Cu，和/或0.02-0.5％，优选0.05-0.2％的Zr。用于磁盘的铝合金基底具有这样的结构，其中在基体金属中存在细小且均匀的金属间化合物，几乎不存在非金属夹杂物，并且具有高硬度和高强度，从而可以提供具有改善的表面平滑度的磁盘（1）和（2）减小的厚度。可以对盘基片进行涂覆以提供高密度磁记录。

3. 发明授权

US4568207A Magnetic actuator mechanism 失效
标题翻译：磁致动器机构
公开(公告)号：US4568207A
公开(公告)日：1986-02-04
申请号：US614640
申请日：1984-05-29
申请人： Kazuhiko Hara , Fumihiro Kasano , Yoshinobu Okada , Hiromi Nishimura , Tadashi Murakami
发明人： Kazuhiko Hara , Fumihiro Kasano , Yoshinobu Okada , Hiromi Nishimura , Tadashi Murakami
IPC分类号： H01F7/14 , B41J2/265 , B41J2/275 , B41J3/12
CPC分类号： B41J2/265 , B41J2/275
摘要： An improved magnetic actuator mechanism suitable for dot printing mechanisms for use in a wire matrix dot printer. The present magnetic actuator mechanism comprises an armature movable between a reset position and an actuated position, a permanent magnet for attracting the armature toward the reset position, and an electromagnet which, when energized, generates in the armature a magnetic flux opposite to and larger than the magnetic flux generated therein by the permanent magnet. The armature is thus moved to the actuated position by the turn of the magnetization direction in the armature when the electromagnet is energized. Therefore, in the present invention, the armature can have the magnetic fluxes in the opposite directions by the action of the permanent magnet and electromagnet combination so as to provide the armature of smaller cross sectional area or thickness with a higher magnetic force without causing the magnetic saturation thereof, which allows the use of an armature of less thickness or weight to assure high speed operation in response to a driving signal.
摘要翻译：一种改进的磁致动器机构，适用于在线状点阵打印机中使用的点印刷机构。本磁致动器机构包括可在复位位置和致动位置之间移动的衔铁，用于将电枢朝向复位位置吸引的永磁体，以及电磁体，当被激励时，在电枢中产生与电枢相反并且大于由永磁体产生的磁通量。因此当电磁铁通电时，电枢通过衔铁的磁化方向的转动而移动到致动位置。因此，在本发明中，通过永久磁铁和电磁铁组合的作用，衔铁可以在相反方向上具有磁通，从而提供具有较高磁力的较小横截面积或厚度的电枢，而不会导致磁其饱和度允许使用较小厚度或重量的电枢来确保响应于驱动信号的高速操作。

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