公开(公告)号：US4920441A

公开(公告)日：1990-04-24

申请号：US196866

申请日：1988-05-20

申请人： Takashi Kimura ,  Kenichi Chihara ,  Masahiro Tomatsu ,  Kazunobu Inoue ,  Norio Yano ,  Osamu Adachi

发明人： Takashi Kimura ,  Kenichi Chihara ,  Masahiro Tomatsu ,  Kazunobu Inoue ,  Norio Yano ,  Osamu Adachi

IPC分类号： G11B23/00 ,  G11B23/033 ,  G11B23/02 ,  G11B5/82

CPC分类号： G11B23/0035 ,  G11B23/0332

摘要： A flexible magnetic diskette used for magnetically storing various information which is recorded and read by a magnetic head. The diskette includes a flexible plastic disk sheet uniformly coated with magnetic material and having a mount hole at its center, and a holder for securing the disk sheet over the periphery of the mount hole. The holder is also made of a plastic material for holding the flexible disk sheet over the peripheral portion of the mount hole via a double-sided adhesive ring. A core member is made of a magnetic metal having a high abrasive resistance and rigidly attached to the holder over at least a part of a surface of the holder, with which a drive unit is engaged.

摘要翻译： 用于磁存储由磁头记录和读取的各种信息的柔性磁盘。 软盘包括均匀地涂覆有磁性材料并且在其中心具有安装孔的柔性塑料盘片，以及用于将盘片固定在安装孔的周边上的保持器。 保持器也由用于通过双面粘合环将柔性盘片保持在安装孔的周边部分上的塑料材料制成。 芯部件由具有高耐磨性的磁性金属制成，并且在保持器的表面的至少一部分上刚性地附接到保持器，驱动单元与该保持器接合。

公开(公告)号：US5550657A

公开(公告)日：1996-08-27

申请号：US118816

申请日：1993-09-10

申请人： Akira Tanaka ,  Yoshinori Mesaki ,  Akio Sotokawa ,  Masahiro Tomatsu ,  Kazumasa Kaiwa

发明人： Akira Tanaka ,  Yoshinori Mesaki ,  Akio Sotokawa ,  Masahiro Tomatsu ,  Kazumasa Kaiwa

IPC分类号： F21S2/00 ,  F21V8/00 ,  F21V13/00 ,  G02B5/02 ,  G02B6/00 ,  G02F1/1335 ,  G02F1/13357

CPC分类号： G02B6/0055 ,  G02B6/0036 ,  G02B6/005 ,  G02F1/133615

摘要： A planar illumination unit includes an optical guide layer for guiding light therethrough and emitting the light from a top surface, a light source fixture provided so as to face a side wall of the optical guide layer for injecting a light into the optical guide layer, an optical scattering layer disposed above the top surface of the optical guide layer for causing a scattering in the light that has been received from the optical guide layer, and a reflector provided on a bottom surface of the optical guide layer for reflecting the light incident to the optical guide layer, wherein the light source fixture includes a reflector for reflecting the light that has been produced by a light source in a direction primarily offset from the light source.

摘要翻译： 平面照明单元包括用于引导光通过其并从顶面发射光的光引导层，设置成面对光导层的侧壁以将光注入到光导层中的光源固定件， 光散射层，设置在光导层的顶表面上方，用于引起从光导层接收的光中的散射;以及反射器，设置在光导层的底表面上，用于反射入射到 其中所述光源固定装置包括反射器，所述反射器用于反射由光源产生的光在主要偏离所述光源的方向上。

公开(公告)号：US5040098A

公开(公告)日：1991-08-13

申请号：US507435

申请日：1990-04-11

申请人： Akira Tanaka ,  Shinpei Nagatani ,  Masahiro Tomatsu ,  Kazumasa Kaiwa ,  Kazuaki Yamagishi ,  Katsumi Yashiro

发明人： Akira Tanaka ,  Shinpei Nagatani ,  Masahiro Tomatsu ,  Kazumasa Kaiwa ,  Kazuaki Yamagishi ,  Katsumi Yashiro

IPC分类号： G02B6/00 ,  F21V8/00 ,  G02F1/1335 ,  G02F1/13357 ,  G09F9/00 ,  G09F13/04

CPC分类号： G02B6/002 ,  G02B6/0046 ,  G09F13/0409 ,  G02B6/0031 ,  G02B6/0051

摘要： A backlight having a reflection plate, a diffusion plate, a transparent light guide plate held between the diffusion plate and the reflection plate and having a reflection and diffusion surface adjacent to the reflection plate and a recessed light emitting surface adjacent to the diffusion plate, so that a space is defined between the recessed light emitting surface and the bottom surface of the diffusion plate adjacent thereto, a holder connected to the diffusion plate to define accommodation spaces between the opposite ends of the transparent light guide plate and the holder, and line light sources located in the accommodation spaces.