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1. 发明授权

US4842968A Hologram recording medium 失效
标题翻译：全息记录介质
公开(公告)号：US4842968A
公开(公告)日：1989-06-27
申请号：US809009
申请日：1985-12-16
申请人： Chiaki Kojima , Hidetoshi Shimizu
发明人： Chiaki Kojima , Hidetoshi Shimizu
IPC分类号： G03F7/00 , G03H1/00 , G03H1/02
CPC分类号： G03H1/02 , G03F7/001 , G03H2260/12 , G03H2270/53
摘要： There is disclosed herein a hologram recording medium comprising of substrate formed of transparent and non-light scattering material having a plurality of open pores for said substrate and photopolymerization composition impregnated in said open pores. The photopolymerization composition consists essentially of a photopolymerizable monomer or oligomer which adheres to the surface of said open pores, a photopolymerization initiator and activator for controlling the photopolymerization speed.
摘要翻译：这里公开了一种全息记录介质，其包括由透明和非光散射材料形成的基底，其具有用于所述基底的多个开放孔和浸渍在所述开孔中的光聚合组合物。光聚合组合物基本上由粘附于所述开孔表面的光聚合单体或低聚物组成，光聚合引发剂和用于控制光聚合速度的活化剂。

2. 发明授权

US06504812B2 Optical pickup device with a plurality of laser couplers 有权
公开(公告)号：US06504812B2
公开(公告)日：2003-01-07
申请号：US10037011
申请日：2001-12-31
申请人： Tadashi Taniguchi , Chiaki Kojima
发明人： Tadashi Taniguchi , Chiaki Kojima
IPC分类号： G11B700
CPC分类号： G11B7/127 , G11B7/123 , G11B7/131 , G11B7/1359 , G11B2007/0006
摘要： An optical pickup device with the capability to read data from and write data to different kinds of optical discs in different formats and a composite optical device used in the optical pickup device. An optical pickup device is made by combining two laser couplers LC1 and LC2 that are designed for optimum read/write specifications for optical discs which are different in format from each other. In one embodiment, two laser couplers LC1 and LC2 are incorporated on a common photodiode IC to form a single laser coupler, and the laser coupler is used in an optical pickup device.

3. 发明授权

US4253723A Apparatus for optically reading information from a record carrier 失效
标题翻译：用于从记录载体光学读取信息的装置
公开(公告)号：US4253723A
公开(公告)日：1981-03-03
申请号：US841210
申请日：1977-10-11
申请人： Chiaki Kojima , Takashi Otobe , Hiroshi Ohki
发明人： Chiaki Kojima , Takashi Otobe , Hiroshi Ohki
IPC分类号： G02B5/32 , G11B7/085 , G11B7/09 , G11B7/1353 , G11B7/1374 , G11B7/12
CPC分类号： G02B5/32 , G11B7/0917 , G11B7/1353 , G11B7/1374 , G11B2007/0924 , G11B7/0901
摘要： Apparatus for reading optically detectable indicia on a record carrier, such as video information which is recorded in the form of pits on a record medium, for example, a video disc. A source of coherent light transmits a beam to the record carrier. A hologram is interposed between the coherent light source and the carrier, the hologram serving to focus the beam on the record carrier. The intensity of the focussed beam is modulated by the recorded indicia, and at least one photodetector is disposed in an optical path traversed by the modulated beam so as to detect the intensity thereof. In a preferred embodiment, the hologram focusses the beam onto the surface of the record medium whereat it is modulated and reflected therefrom to the photodetector. Plural photodetectors may be provided in separate optical paths traversed by the reflected light so as to produce outputs which, upon comparison with each other, represent deviations, or tracking errors, in the location of incidence of the light beam on the record medium. In yet another embodiment, the hologram directs the coherent light to the record medium along two different optical paths so that the reflection of one beam can be used to read out the recorded information and the reflection of the other beam can be used to detect focussing fluctuations. In a still further embodiment, another hologram is used to receive and direct reflected light to the photodetector.
摘要翻译：用于在记录载体上读取光学可检测标记的装置，例如以记录介质（例如视频盘）上的凹坑形式记录的视频信息。相干光源将光束传输到记录载体。全息图被插入在相干光源和载体之间，全息图用于将光束聚焦在记录载体上。聚焦光束的强度由所记录的标记调制，并且至少一个光电探测器设置在由调制光束穿过的光路中，以便检测其强度。在优选实施例中，全息图将光束聚焦到记录介质的表面上，在该表面上被调制并从其反射到光电探测器。可以在由反射光穿过的分开的光路中提供多个光电检测器，以便产生在彼此比较时在光束在记录介质上的入射位置的偏差或跟踪误差的输出。在另一个实施例中，全息图将相干光沿着两个不同的光学路径引导到记录介质，使得可以使用一个光束的反射来读出记录的信息，并且可以使用另一个光束的反射来检测聚焦波动。在又一个实施例中，使用另一全息图来接收并将反射光引导到光电检测器。

4. 发明授权

US4026604A Ground excavating apparatus 失效
标题翻译：地面挖掘装置
公开(公告)号：US4026604A
公开(公告)日：1977-05-31
申请号：US616289
申请日：1975-09-24
申请人： Mitsuteru Motomura , Chiaki Kojima , Hiroshi Ohta , Akira Nemoto
发明人： Mitsuteru Motomura , Chiaki Kojima , Hiroshi Ohta , Akira Nemoto
IPC分类号： E02F3/28 , E02F3/96 , E21C35/02
CPC分类号： E02F3/966 , E02F3/286
摘要： Such a ground excavating apparatus that conducts excavation of a soft stratum by means of a bucket and employs an impact crusher for the excavation of such a hard stratum as a rock bed or the like is disclosed.Introduced in the present application is a ground excavator of such a category that comprises a housing, a bucket boom properly set in place in the said housing in a manner of being capable of traveling forward and rearward, a bucket properly fitted in place on the front end section of the said bucket boom in a manner of being capable of inclining, and an impact crushing mechanism well capable of traveling forward and rearward by virtue of a hydraulic jack housed in the said bucket boom, and employs the said bucket and the said impact crushing mechanism in an alternate manner to best suit the nature of the ground to be excavated.
摘要翻译：公开了一种通过铲斗进行柔软地层的挖掘并采用冲击式破碎机来挖掘诸如岩石床等硬层的地面挖掘装置。

5. 发明授权

US6134208A Optical pickup device with a plurality of laser couplers 有权
公开(公告)号：US6134208A
公开(公告)日：2000-10-17
申请号：US473007
申请日：1999-12-28
申请人： Tadashi Taniguchi , Chiaki Kojima
发明人： Tadashi Taniguchi , Chiaki Kojima
IPC分类号： G11B7/00 , G11B7/12 , G11B7/125 , G11B7/13 , G11B7/135 , G11B11/105
CPC分类号： G11B7/127 , G11B7/123 , G11B7/131 , G11B7/1356 , G11B7/1359 , G11B11/10543 , G11B2007/0006
摘要： An optical pickup device with the capability to read data from and write data to different kinds of optical discs in different formats and a composite optical device used in the optical pickup device. An optical pickup device is made by combining two laser couplers LC1 and LC2 that are designed for optimum read/write specifications for optical discs which are different in format from each other. In one embodiment, two laser couplers LC1 and LC2 are incorporated on a common photodiode IC to form a single laser coupler, and the laser coupler is used in an optical pickup device.

6. 发明授权

US4157568A Method and apparatus for optically reproducing a rotatable record with a scanning light beam of changing size 失效
标题翻译：用于以具有变化的尺寸的扫描光束光学地再现可旋转记录的方法和装置
公开(公告)号：US4157568A
公开(公告)日：1979-06-05
申请号：US855303
申请日：1977-11-28
申请人： Hiroshi Ohki , Takashi Otobe , Chiaki Kojima
发明人： Hiroshi Ohki , Takashi Otobe , Chiaki Kojima
IPC分类号： H04N5/85 , G11B7/005 , G11B7/12 , G11B7/125 , G11B7/135 , G11B7/1381 , G11B7/18 , G11B19/24
CPC分类号： G11B7/0908 , G11B19/24 , G11B7/005 , G11B7/12 , G11B7/1381
摘要： A rotatable record carrier upon which reproducible information is recorded in the form of spaced apart pits in substantially concentric circular tracks on a surface of the carrier. The pits may represent frequency-modulated information signals, and the lengths of the pits are independent of the frequency of the information signals. A method and apparatus for reproducing information from this record carrier is disclosed, wherein a light beam is used to scan the tracks of the record medium, and the size of the scanning light beam is changed as a function of the radius of the track which then is being scanned so as to increase the size of the beam when a track of larger radius is scanned. This control over the size of the scanning beam establishes a constant relationship between the size of the beam and the length of the pits despite changes in the pit length due to the different radii of the tracks.
摘要翻译：可旋转的记录载体，可再现的信息以分隔开的凹坑的形式记录在载体的表面上的基本上同心的圆形轨道中。凹坑可以表示频率调制信息信号，并且凹坑的长度与信息信号的频率无关。公开了一种用于从该记录载体再现信息的方法和装置，其中使用光束来扫描记录介质的轨道，并且扫描光束的尺寸随着轨道的半径而变化正在进行扫描，以便当扫描较大半径的轨道时增加光束的尺寸。对于扫描光束的尺寸的这种控制建立了光束的尺寸和凹坑的长度之间恒定的关系，尽管由于轨道的不同半径引起的凹坑长度的变化。

7. 发明授权

US4152726A Record disk and method for producing the same with constant width groove 失效
标题翻译：记录磁盘及其制造方法，具有恒定宽度的凹槽
公开(公告)号：US4152726A
公开(公告)日：1979-05-01
申请号：US710098
申请日：1976-07-30
申请人： Chiaki Kojima , Yuzuru Yanagisawa , Takashi Otobe , Hiroshi Ohki
发明人： Chiaki Kojima , Yuzuru Yanagisawa , Takashi Otobe , Hiroshi Ohki
IPC分类号： G11B3/00 , G11B3/70 , G11B3/72 , G11B7/007 , G11B7/128 , G11B7/26 , G11B23/00 , H04N5/76 , G11B7/00
CPC分类号： G11B7/128 , G11B23/0057 , G11B3/702 , G11B3/72 , G11B7/007 , G11B7/261
摘要： In a record disk having a spiral groove in a surface thereof with the depth of the groove varying along the latter for representing recorded information, such as video signals; the groove has an inverted bell-shaped cross-section which is symmetrical about the median of the groove with each of the opposite side surfaces of the groove, at any location therealong, being defined approximately by the equationd.sub.x =d.sub.o .multidot.exp [-(x/w).sup.2 ]in which d.sub.o is the depth of the groove at the median thereof, w is the distance from the median of the groove to the point at the side surface of the groove where the depth is d.sub.o /e (e being the base of the natural logarithm), and d.sub.x is the depth of the groove at the respective side surface at a distance x from the median. The foregoing record disk is conveniently molded in correspondence with an original recording disk produced by directing a laser light beam which has a Gaussian energy distribution thereacross against a layer of positive type photo-resist material on the original recording disk while the latter and the light beam are moved relative to each other for scanning a spiral track of constant pitch on the original recording disk and while the intensity of the laser light beam is modulated by the information signals to be recorded, and then developing the layer of photo-resist material.
摘要翻译：在具有在其表面上具有螺旋槽的记录盘中，凹槽的深度沿着该槽的深度变化，用于表示诸如视频信号的记录信息; 凹槽具有倒置的钟形横截面，其关于凹槽的中间对称，凹槽的每个相对的侧表面在其任何位置处，大致由方程式DX = DOxEXP [ - （X / W）2]在中间的深处，W在距离中心的距离到距离深度为E / E的地面的边缘的距离（E为基准）的自然对数），而DX是距离媒体的距离X的相对侧表面上的深度。上述记录盘与通过将具有高斯能量分布的激光束对准原始记录盘上的正型光致抗蚀剂材料层而产生的原始记录盘相适应地模制，而后者和光束相对于彼此移动，用于扫描原始记录盘上的恒定螺距的螺旋轨迹，同时激光束的强度被待记录的信息信号调制，然后显影该光致抗蚀材料层。

8. 发明授权

US4150398A Linear method of optically recording a video or other signal 失效
标题翻译：光学记录视频或其他信号的线性方法
公开(公告)号：US4150398A
公开(公告)日：1979-04-17
申请号：US648006
申请日：1976-01-12
申请人： Chiaki Kojima , Hiroshi Ohki , Yuzuru Yanagisawa
发明人： Chiaki Kojima , Hiroshi Ohki , Yuzuru Yanagisawa
IPC分类号： G11B7/24 , G11B7/0045 , G11B7/125 , G11B7/128 , G11B7/26 , G11B23/00 , H04N5/76
CPC分类号： G11B7/128 , G11B23/0057 , G11B7/0045 , G11B7/261 , Y10S430/146
摘要： In optically producing a reproducible recording of video or other signals, the intensity of at least one laser light beam is modulated by the signals to be recorded while such light beam scans a substantially flat surface on a photo-sensitive recording medium which is photo-reacted to a degree varying substantially linearly in correspondence with the intensity of the light impinging thereon over a predetermined range of light intensities, and the intensity of the light beam and the degree of modulation thereof by the signals are selected to maintain the maximum and minimum intensities of the modulated light beam within such predetermined range so as to form simultaneously on the record medium a tracking path portion and a recorded signal portion which is unified with the latter. The photo-sensitive record medium is desirably constituted by a positive photo-resist so that, upon development thereof, the tracking path portion is obtained in the form of a groove having the recorded signal portion defined by irregularities at the bottom of such groove. The positive photo-resist or other photo-sensitive material may be conveniently applied as a layer on a base plate or disc which is rotated while the light beam and disc are moved relative to each other in a radial direction of the disc so that the groove or other tracking path portion forms a spiral.
摘要翻译：在光学地产生视频或其他信号的可再现记录时，至少一个激光束的强度被待记录的信号调制，而这样的光束扫描光敏记录介质上基本上平坦的表面，光敏记录介质被光反应在一定程度的光强度下对应于入射到其上的光的强度基本线性地变化的程度，并且选择光束的强度及其信号的调制程度以保持最大和最小强度调制光束在该预定范围内，以便在记录介质上同时形成跟踪路径部分和与后者统一的记录信号部分。感光记录介质理想地由正光致抗蚀剂构成，使得在显影时，获得具有记录信号部分的槽的形式的跟踪路径部分，该记录信号部分由凹槽底部的凹凸限定。正光敏抗蚀剂或其它感光材料可以方便地作为层在基板或盘上施加，所述基板或盘在光盘和盘在盘的径向方向上相对于彼此移动而旋转，使得凹槽或其他跟踪路径部分形成螺旋。

9. 发明授权

US5900619A Optical device comprising a photodetector for detecting light scattered outside a diffraction limit of an objective lens 失效
$Optical device comprising a photodetector for detecting light scattered outside a diffraction limit of an objective lens$
标题翻译：光学装置包括用于检测散射在物镜的衍射极限外的光的光电检测器
公开(公告)号：US5900619A
公开(公告)日：1999-05-04
申请号：US681480
申请日：1996-07-23
申请人： Kazuo Honda , Chiaki Kojima
发明人： Kazuo Honda , Chiaki Kojima
IPC分类号： G06K7/10 , G11B7/12 , G11B7/13 , G11B7/135 , G11B11/105 , H01L31/0232 , H01L31/16 , H01S5/00 , H01S5/026 , H01S5/18 , H01S5/183 , H01L31/12 , H01S3/18
CPC分类号： H01S5/0264 , G06K7/10594 , G11B7/123 , G11B7/13 , G11B7/1353 , H01L31/165 , G11B11/10543 , H01S5/02288 , H01S5/02292 , H01S5/183
摘要： For the sake of reducing the number of parts and simplifying adjustment for the optical positions of the parts in an optical device wherein information signals from the light scattered or diffracted which is derived from an optical recording medium are detected, there is provided the optical device of the invention comprising a semiconductor substrate provided with a plane light emitting laser element and a photodiode; and an optical system; a layout position of the photodiode being selected in a region which extends out of the confocal region of the optical system, and from which the light scattered or diffracted from a section irradiated with laser light irradiation derived from the plane light emitting laser element with respect to the section to be irradiated.
摘要翻译：为了减少零件数量并简化对光学装置中的部件的光学位置的调整，其中检测到从光记录介质导出的散射或衍射光的信息信号，提供了光学装置本发明包括设置有平面发光激光元件和光电二极管的半导体衬底; 和光学系统; 在从光学系统的共焦区域延伸的区域中选择光电二极管的布局位置，并且从相对于平面发光激光器元件衍射的激光照射的部分散射或衍射的光相对于要照射的部分。

10. 发明授权

US5350917A Opto-magnetic recording polarization optical apparatus including a laser diode and a light absorbing film 失效
标题翻译：包括激光二极管和光吸收膜的光磁记录偏振光学装置
公开(公告)号：US5350917A
公开(公告)日：1994-09-27
申请号：US996149
申请日：1992-12-23
申请人： Tadashi Taniguchi , Chiaki Kojima
发明人： Tadashi Taniguchi , Chiaki Kojima
IPC分类号： G11B7/09 , G11B7/12 , G11B7/135 , G11B11/105 , H01J3/14
CPC分类号： G11B7/1381 , G11B11/10543 , G11B11/10595 , G11B7/123 , G11B7/0912
摘要： In an optical apparatus according to the present invention, a light-absorbing film is formed between a light-receiving element and an optical semitransparent film formed on the light-receiving element to cause the light-receiving element to partially receive incident light. In addition, in an optomagnetic recording polarization optical apparatus according to the present invention, a prism for guiding a reflected light component from an optomagnetic recording medium to a light-receiving element and the light-receiving element are arranged on the same substrate.
摘要翻译：在根据本发明的光学装置中，在光接收元件和形成在光接收元件上的光半透膜之间形成光吸收膜，以使光接收元件部分地接收入射光。另外，在根据本发明的光磁记录偏振光学装置中，用于将来自光磁记录介质的反射光分量引导到光接收元件的棱镜和光接收元件布置在同一基板上。

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