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1. 外观设计

USD377351S Cellular phone 失效
公开(公告)号：USD377351S
公开(公告)日：1997-01-14
申请号：US43452
申请日：1995-08-30
申请人： Yuiko Toki , Ryo Kodama , Yoji Ishii , Hiroshi Ozaki
设计人： Yuiko Toki , Ryo Kodama , Yoji Ishii , Hiroshi Ozaki

2. 发明授权

US06438076B1 Information recording or information recording/reproducing device 失效
标题翻译：信息记录或信息记录/再现装置
公开(公告)号：US06438076B1
公开(公告)日：2002-08-20
申请号：US08996016
申请日：1997-12-22
申请人： Kenji Kasahara , Shigeaki Koike , Yoji Ishii , Naoki Inoue
发明人： Kenji Kasahara , Shigeaki Koike , Yoji Ishii , Naoki Inoue
IPC分类号： G11B700
CPC分类号： G11B17/043 , G11B7/08582 , G11B7/0946 , G11B17/0286 , G11B31/006
摘要： Disclosed is an information recording/reproducing device using an upright disk-like recording medium contained in a cartridge, wherein an objective lens is stably moved in the tracking direction with less undesirable displacement and also the entire optical head portion including the objective lens is prevented from being undesirably moved. The device includes a disk mounting portion on which a disk contained in a cartridge is mounted with a recording surface portion located within a vertical plane, an optical head portion having an objective lens opposed to the recording surface portion of the disk, and an optical head drive portion, a tracking control portion, and a cartridge housing portion for housing and supporting the cartridge containing the disk when the disk is mounted on the disk mounting portion. The cartridge containing the disk is inserted into the cartridge housing portion in the direction crossing the vertical direction and the movement of the objective lens by the tracking control portion is performed in the direction perpendicular to the vertical direction.
摘要翻译：公开了一种信息记录/再现装置，其使用容纳在盒中的直立盘状记录介质，其中物镜在跟踪方向上稳定地移动，而不期望的位移，并且防止包括物镜的整个光学头部分不合需要地移动。该装置包括盘安装部分，其中容纳在盒中的盘安装有位于垂直平面内的记录表面部分，具有与盘的记录表面部分相对的物镜的光学头部分和光学头驱动部分，跟踪控制部分和盒容纳部分，用于当盘安装在盘安装部分上时用于容纳和支撑容纳盘的盒。容纳盘的盒沿与垂直方向交叉的方向插入盒容纳部分，并且通过跟踪控制部分的物镜的移动在垂直于垂直方向的方向上进行。

3. 发明授权

US5260927A Optical pickup device for recordable disc and dichroic mirror 失效
标题翻译：用于可记录光盘和分色镜的光学拾取装置
公开(公告)号：US5260927A
公开(公告)日：1993-11-09
申请号：US816733
申请日：1992-01-03
申请人： Teruaki Higashihara , Yoji Ishii , Kiyoshi Ohsato
发明人： Teruaki Higashihara , Yoji Ishii , Kiyoshi Ohsato
IPC分类号： G02B27/28 , G11B7/00 , G11B7/0045 , G11B7/135 , G11B11/10 , G11B11/105
CPC分类号： G11B7/1362 , G02B27/283 , G11B11/10543 , G11B7/1365
摘要： Laser light beams from first and second laser light sources 11 and 12 having different wavelengths are synthesized by a dichroic mirror 16 and irradiated on a magneto-optical disc 20 as a recordable disc and the reflected light is separated into the laser light of the first and second wavelengths. In respect of the laser light of the first wavelength, the phase difference between the P- and S-polarization components produced by the dichroic mirror 16 is compensated by a phase compensation plate 32 and the P-and S-polarization components are separated from each other by a polarization beam splitter 36 so as to be received by photodetector elements 37 and 38, respectively. Such dichroic mirror 16 is used in which the difference between the minimum transmittance in a working range of the laser light of the first wavelength and the maximum transmittance in a working range of the laser light of the second wavelength is 90% or higher for reducing changes in the phase difference between the P- and S-polarization components. Optimum signals may be obtained at the photodetector elements 37 and 38 while high wavelength separation characteristics are maintained.

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