公开(公告)号：US5229983A

公开(公告)日：1993-07-20

申请号：US634765

申请日：1990-12-27

申请人： Ichiro Kawamura ,  Goro Naoki ,  Yukinori Okazaki ,  Ryoichi Imanaka

发明人： Ichiro Kawamura ,  Goro Naoki ,  Yukinori Okazaki ,  Ryoichi Imanaka

IPC分类号： G11B11/105

CPC分类号： G11B11/1056

摘要： An apparatus for generating a bias magnetic field to a magneto-optical disk includes a movable magnet which serves to generate a bias magnetic field. A suitable device serves to generate a drive magnetic field to move the magnet. A stopper is engageable with the magnet to stop the magnet at a predetermined position.

公开(公告)号：US5124975A

公开(公告)日：1992-06-23

申请号：US669185

申请日：1991-03-13

申请人： Goro Naoki ,  Ichiro Kawamura

发明人： Goro Naoki ,  Ichiro Kawamura

IPC分类号： G11B17/04 ,  G11B17/043

CPC分类号： G11B17/0436

摘要： A shutter opening and device includes movable components such as a lever, an actuating pin and a spring all disposed in a guide channel of a cartridge holder into which a disk cartridge is inserted. The device of this construction is low in profile and compact in size and makes it possible to reduce the overall size of a disk drive in which the device is incorporated. With the combination of a straight guide groove and an oblique guide groove formed in the cartridge holder, the actuating pin is movable along a substantially straight path. This enables the user to insert the disk cartridge into the cartridge holder smoothly with a small muscular effort.

公开(公告)号：US4482991A

公开(公告)日：1984-11-13

申请号：US387494

申请日：1982-06-11

申请人： Ichiro Kawamura ,  Izumi Hino ,  Makoto Fujita

发明人： Ichiro Kawamura ,  Izumi Hino ,  Makoto Fujita

IPC分类号： G11B17/049 ,  G11B17/032 ,  G11B17/04 ,  G11B3/58

CPC分类号： G11B17/049 ,  G11B17/032 ,  G11B17/04

摘要： A disk clamping mechanism for disk recording and reproducing devices of the type in which when a disk cartridge with a disk enclosed therein is inserted into the device the disk clamping mechanism is actuated to clamp the raised groove guard formed around the rim of the disk so that when the cartridge is pulled out of the device the disk remains therein. The clamping mechanism includes a pair of clamping fingers with projections adapted for engagement with the groove guard when the forces pulling out the cartridge are transmitted to the disk. A linkage or a mechanism comprising a wedge and tapered surfaces is operatively connected to the clamping fingers in such a way that when a pulling force is exerted on the disk and the clamping fingers, the linkage or mechanism causes the clamping arms or fingers to move further toward each other, thus exerting a stronger clamping force on the disk.

摘要翻译： 一种用于盘记录和再现装置的盘夹紧机构，其中当盘被包含在其中的盘盒插入到装置中时，盘夹紧机构被致动以夹紧围绕盘的边缘形成的凸起槽护罩，使得 当墨盒从设备中拉出时，磁盘保留在其中。 夹紧机构包括一对具有突出部的夹持指状件，当伸出卡盘的力传递到盘片时，其具有适于与槽护罩接合的夹紧指状物。 包括楔形件和锥形表面的连接件或机构可操作地连接到夹紧指状件，使得当拉力施加在盘和夹持指状件上时，连接件或机构使夹紧臂或手指进一步移动 彼此相对，从而在盘上施加更强的夹紧力。

公开(公告)号：US06204962B1

公开(公告)日：2001-03-20

申请号：US09395717

申请日：1999-09-14

申请人： Ichiro Kawamura

发明人： Ichiro Kawamura

IPC分类号： G02B2106

CPC分类号： G02B21/006 ,  G02B21/008

摘要： A confocal microscope is provided that can perform automatic focussing. A beam splitter (9) is additionally disposed along an optical path of light split from reflected light from the surface of an object of a confocal microscope, whereby when light is focussed on the surface of a light detector (7), a difference between a quantity of light detected by a second light detector (11) and a quantity of light detected by a third light detector (13) is constructed so as to become a predetermined quantity, while when light is not focussed on the surface of the light detector (7), the difference between the quantity of light detected by the second light detector and the quantity of light detected by the third light detector is a quantity of light that is different from the predetermined quantity, and the object is automatically controlled such that the difference in quantity of light between the light detectors becomes the predetermined quantity.

摘要翻译： 提供可以执行自动聚焦的共焦显微镜。沿着从共焦显微镜的物体的表面的反射光分离的光的光路另外设置分束器（9），由此当光聚焦在共焦显微镜的表面上时 光检测器（7），由第二光检测器（11）检测到的光量与由第三光检测器（13）检测到的光量之间的差异被构造成为预定量，而当光 不聚焦在光检测器（7）的表面上，由第二光检测器检测到的光量与由第三光检测器检测到的光量之间的差是与预定量不同的光量 ，并且自动控制物体，使得光检测器之间的光量差成为预定量。

公开(公告)号：US5901129A

公开(公告)日：1999-05-04

申请号：US727732

申请日：1996-10-08

申请人： Yuji Takahashi ,  Ichiro Kawamura ,  Toshiaki Kashihara ,  Yoshio Hata

发明人： Yuji Takahashi ,  Ichiro Kawamura ,  Toshiaki Kashihara ,  Yoshio Hata

IPC分类号： G11B17/04 ,  G11B17/047 ,  G11B23/03 ,  G11B33/02

CPC分类号： G11B17/047 ,  G11B17/056 ,  G11B17/057 ,  G11B23/0307 ,  G11B23/0308 ,  G11B23/0311 ,  G11B23/0316

摘要： A flat tray (1) for receiving a disk cartridge (21) for a disk loading apparatus, wherein positioning holes (28) are provided at the rear end (27a), on a peripheral side, of the disk cartridge, and protrusions (18) are formed on the tray providing for a rigid positioning of the cartridge in order to fix the cartridge at the specified position on the tray. The protrusions (18) may be made of leaf springs that are formed with one end curved. When the disk cartridge (21) is pushed into the tray (1), the curved portions of the protrusions match the positioning holes (28) on the disk cartridge.

摘要翻译： 一个平板托盘（1），用于容纳用于盘装载装置的盘盒（21），其中定位孔（28）设置在盘盒的周边的后端（27a）处，以及突起（18 ）形成在托盘上，用于盒的刚性定位，以便将盒固定在托盘上的指定位置。 突起（18）可以由形成有一端弯曲的板簧制成。 当盘盒（21）被推入托盘（1）时，突起的弯曲部分与盘盒上的定位孔（28）相匹配。

公开(公告)号：US5812511A

公开(公告)日：1998-09-22

申请号：US751956

申请日：1996-11-19

申请人： Ichiro Kawamura ,  Hirofumi Furukawa ,  Shinichi Maeda

发明人： Ichiro Kawamura ,  Hirofumi Furukawa ,  Shinichi Maeda

IPC分类号： G11B17/035 ,  G11B17/04 ,  G11B17/057 ,  G11B33/02

CPC分类号： G11B17/056 ,  G11B17/0565 ,  G11B17/057

摘要： A recording and reproducing apparatus using high density recording disk, such as optical disk. The recording and reproducing device of this invention can accommodated both disk and disk cartridges of a plurality of differing sizes. Because this invention can accommodate both disk and disk cartridges, a single device that can both record and reproduce information to or from a high density disk is achieved.

摘要翻译： 使用高密度记录盘的记录和再现装置，例如光盘。 本发明的记录和再现装置可以容纳多种不同尺寸的盘和盘盒。 由于本发明可以容纳磁盘和磁盘盒，所以可以实现能够将信息记录到高密度磁盘或从高密度磁盘重放信息的单个设备。

公开(公告)号：US5737293A

公开(公告)日：1998-04-07

申请号：US530429

申请日：1995-09-19

申请人： Ichiro Kawamura ,  Shinichi Maeda

发明人： Ichiro Kawamura ,  Shinichi Maeda

IPC分类号： G11B17/04 ,  G11B23/03

CPC分类号： G11B17/057

摘要： The present invention enables a disc loading apparatus to handle both a bare disc and a disc housed in disc cartridge for writing/reading signals, which comprises a holding device consisting of a first holding device for elastically fitting with holding cuts provided at both sides of a disc cartridge inserted in an inserting gate and a second holding device for elastically holding the circumferential edge of a bare disc inserted in said inserting gate, which device is movable along a direction connecting said inserting gate and a table, and a transfer means to carry said holding device so that disc and a disc housed in said disc cartridge travel between said inserting gate and said turn table; thus a bare disc and a disc cartridge are selectively held by the holding device to be loaded.

摘要翻译： 本发明使得盘装载装置能够处理容纳在盒式盘中的用于写入/读取信号的裸盘和盘，其包括保持装置，该保持装置由第一保持装置构成，第一保持装置与设置在 插入插入门的盘盒和用于弹性地保持插入在所述插入门中的裸盘的圆周边缘的第二保持装置，该装置可沿着连接所述插入门和桌子的方向移动;以及传送装置，用于承载所述 保持装置，使得容纳在所述盘盒中的盘和盘在所述插入门和所述转台之间行进; 因此，被保持装置选择性地保持裸盘和盘盒。

公开(公告)号：US5206849A

公开(公告)日：1993-04-27

申请号：US653340

申请日：1991-02-11

申请人： Hiroshi Yamamoto ,  Ichiro Kawamura ,  Shoji Goto

发明人： Hiroshi Yamamoto ,  Ichiro Kawamura ,  Shoji Goto

IPC分类号： G11B7/09 ,  G11B7/12

CPC分类号： G11B7/12 ,  G11B7/0932

摘要： An objective lens actuator for an optical storage drive includes a cross-sectionally L-shaped torsion plate spring which is fixed at its central portion to an objective lens holder and at its opposite ends to free ends of a pair of parallel spaced, cantilevered plate springs. The torsion plate spring is caused to twist to displace the objective lens holder and an objective lens mounted thereon in the tracking direction. The parallel spaced plate springs are caused to bend to displace the objective lens holder and the objective lens in the focusing direction.

公开(公告)号：US5200940A

公开(公告)日：1993-04-06

申请号：US654461

申请日：1991-02-13

申请人： Shoji Goto ,  Ichiro Kawamura ,  Hiroshi Yamamoto

发明人： Shoji Goto ,  Ichiro Kawamura ,  Hiroshi Yamamoto

IPC分类号： G11B7/09 ,  G11B7/085

CPC分类号： G11B7/08582

摘要： An optical unit actuator for an optical information recording/reproducing apparatus includes an electromagnetic drive mechanism composed of a coil and a magnet cooperative to drive an objective lens mounted on an optical unit. One of the coil and the magnet is secured to the optical unit. The other of the coil and the magnet is held on a fixed unit with an elastic support member disposed therebetween, the fixed unit being immovable as against the movable optical unit. The elastic support member substantially dampens or takes up vibration caused by a reaction force creased as a result of acceleration of the objective lens when the objective lens is driven to follow a dynamic radial runout and an axial deflection of an optical disk. With the elastic support member thus provided, an optical component, a photo-electric transducer or the optical disk which is disposed on the side of the fixed unit is isolated from vibration. The control characteristics of a system including an optical head, the optical disk and a control circuit for the optical head can, therefore, be improved.

公开(公告)号：US4946989A

公开(公告)日：1990-08-07

申请号：US223641

申请日：1988-07-25

申请人： Ichiro Kawamura ,  Yoshio Imai

发明人： Ichiro Kawamura ,  Yoshio Imai

IPC分类号： C07C69/76 ,  C07C69/773 ,  C09K19/20

CPC分类号： C09K19/2021

摘要： A compound of ##STR1## (wherein n is an integer from 2 to 15; R' is ##STR2## m is total number of carbon atoms in R' and is an integer from 5 to 12, and * mark shows asymmetric carbon atom) which is useful for an electric indicative element of liquid crystal is provided.