公开(公告)号：US20030117792A1

公开(公告)日：2003-06-26

申请号：US10321655

申请日：2002-12-18

申请人： Minebea Co. Ltd.

发明人： Toru Kunimochi ,  Shingo Suzuki ,  Motoji Egawa ,  Takahiro Shimura ,  Shigeyuki Oishi

IPC分类号： F21V007/04

CPC分类号： G02B6/0013 ,  G02B6/0028 ,  G02B6/0038 ,  G02B6/0068

摘要： A spread illuminating apparatus comprises: a light conductive plate made of a light transmissible material; a bar-like lamp disposed along and close to an end face of the light conductive plate; a light reflection pattern having a stair-like configuration in section, and formed on a major face of the light conductive plate; and a light dispersive-reflection pattern comprising a plurality of, for example, convex surfaces continuous with each other, and formed on a major face of the light conductive plate opposite to the major face provided with the light reflection pattern.

摘要翻译： 扩散照明装置包括：由透光材料制成的导光板; 沿着并靠近导光板的端面设置的棒状灯; 具有阶梯状构造的光反射图案，形成在导光板的主面上; 以及包括多个例如彼此连续的凸面的光分散反射图案，并且形成在与设置有光反射图案的主面相对的导光板的主表面上。

公开(公告)号：US20010026418A1

公开(公告)日：2001-10-04

申请号：US09824058

申请日：2001-04-03

申请人： MINEBEA CO., LTD.

发明人： Motoji Egawa ,  Shigeyuki Oishi

IPC分类号： G11B005/127

CPC分类号： G11B5/2651 ,  G11B5/016 ,  G11B5/105 ,  G11B5/1272 ,  G11B5/295 ,  G11B5/4886

摘要： A magnetic head which can improve workability in coil formation, prevent wiring errors and is compatibly applicable to recording media having respective recording densities different from each other. Twelve cut-outs (11) are formed on four walls (10) at respective edges of a back yoke (5) and lead wires (15a, 15b) of a read/write coil (15) and lead wires (16a, 16b) of a read/write coil (16) are let separately through the respective cut-outs (11), whereby the lead wires (15a, 15b and 16a, 16b) are not mistaken for each other in wiring. Since first and second magnetic cores (2 and 3) and the read/write coils (15 and 16) corresponding thereto are provided, the magnetic head is capable of reading and writing on two recording media having respective recording densities different from each other, thereby providing compatibility for magnetic recording.

摘要翻译： 一种可以提高线圈形成中的可加工性的磁头，防止布线错误，并且兼容地适用于具有彼此不同的记录密度的记录介质。 十二个切口（11）形成在后磁轭（5）的各个边缘的四个壁（10）和读/写线圈（15）和引线（16a，16b）的引线（15a，15b） 读取/写入线圈（16）分别通过相应的切口（11），由此引线（15a，15b和16a，16b）在布线中彼此不相互错误。 由于提供了与其对应的第一和第二磁芯（2和3）和读/写线圈（15和16），磁头能够在具有彼此不同的记录密度的两个记录介质上进行读写，从而 提供磁记录的兼容性。

公开(公告)号：US20010026532A1

公开(公告)日：2001-10-04

申请号：US09824057

申请日：2001-04-03

申请人： MINEBEA CO., LTD.

发明人： Motoji Egawa ,  Shigeyuki Oishi

IPC分类号： G11B011/00 ,  G11B007/00 ,  G11B015/64 ,  G11B017/32

CPC分类号： G11B5/105 ,  G11B5/10 ,  G11B5/1272 ,  G11B5/59677

摘要： An optical servo magnetic head in which the rigidity in a slider is maintained, and a servo error due to dust particles is suppressed. In a separate type magnetic head (1) generally composed of a slider (2) and a back yoke (3), the slider (2) is provided with magnetic cores (11 and 12) for standard recording density and high recording density, respectively, in order to cover, with a single unit of magnetic head, a plurality of recording media having respective recording densities different from each other. A laser beam is used to guide the magnetic head to a prescribed track position, and passage-holes (5 and 6) for permitting the laser beam to pass through are formed through the slider (2) and the back yoke (3), respectively, by molding or machining. Since the passage-holes (5 and 6) can be respectively set to a minimal size required for permitting the laser beam to pass through, it is possible to maintain rigidity in the slider (2) and prevent fine dust particles generated due to the sliding between the recording medium and a sliding surface of the magnetic head from falling through the passage-holes.

摘要翻译： 一种光滑伺服磁头，其中保持了滑块的刚度，并且抑制了由于灰尘颗粒引起的伺服误差。 在通常由滑块（2）和后轭（3）组成的单独型磁头（1）中，滑块（2）分别具有用于标准记录密度和高记录密度的磁芯（11和12） 为了用单个磁头单元覆盖具有彼此不同的相应记录密度的多个记录介质。 使用激光束将磁头引导到规定的轨道位置，并且允许激光束通过的通孔（5和6）分别通过滑块（2）和后轭（3）形成 ，通过模制或加工。 由于通孔（5和6）可以分别设置为允许激光束通过所需的最小尺寸，因此可以保持滑块（2）的刚性，并且防止由于滑动而产生的细小灰尘颗粒 在记录介质和磁头的滑动表面之间，通过通道孔落下。