Patents by Inventor Kiyoshi Ishioka
Kiyoshi Ishioka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 6918130Abstract: An optical disk drive according to the present invention includes, a drive base (10); a traverse base (20) having a turntable (5), a first motor (3) for turntable drive, an optical pickup (6) and a drive mechanism thereof; and an intermediate base (80) disposed between the two bases, so as to swing vertically relative to the drive base and support the traverse base through an elastic body. A drive power transfer path switching mechanism is provided for switching the path through which drive power from a second motor 4 can be driven in forward and reverse directions to supply drive power to the loading drive mechanism and a pickup drive mechanism, so as to make it possible to perform a disk loading operation, a disk rotating operation and a pickup driving operation by 2 motors, and to make it possible to achieve both absorbing vibration from outside and suppressing vibration generated by the rotating operation of the turntable.Type: GrantFiled: September 14, 2001Date of Patent: July 12, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yuji Ariyoshi, Yosuke Noda, Michinori Hashizume, Kiyoshi Ishioka
-
Patent number: 6886176Abstract: An optical disk drive includes a turntable, a first motor for turntable drive, an optical pickup and a drive mechanism arranged on a drive base and a separate traverse base that floats on the drive base. A loading drive mechanism drives a disk loading mechanism. A second motor can be driven in forward and reverse directions to supply drive power to the loading drive mechanism and a pickup drive mechanism. A drive power transfer path switching mechanism is used to switch the path through which drive power from the second motor is transferred to supply power to the loading drive mechanism and pickup drive mechanism. By continuously driving the second motor in one direction, then moving the optical pickup, raising or lowering the turntable, and transporting a disk can be accomplished in this sequence substantially continuously. By reversing the direction of motor drive, these operations can be accomplished substantially continuously in reverse direction in reverse sequence.Type: GrantFiled: April 29, 2003Date of Patent: April 26, 2005Assignee: Matsushita Electric Industries Co., Ltd.Inventors: Yuji Ariyoshi, Toru Tanaka, Masanao Wakikawa, Kiyoshi Ishioka
-
Patent number: 6741536Abstract: An optical disk drive which reduces the number of motors used for drive operation is thereby simplified while shock resistance, vibration resistance, and productivity are improved. A turntable, a first motor for turntable drive, an optical pickup and drive mechanism, are provided on a drive base and a separate traverse base that floats on the drive base. A loading drive mechanism drives a disk loading mechanism. A second motor can be driven in forward and reverse to supply drive power to the loading drive mechanism and a pickup drive mechanism. A drive power transfer path switching mechanism is used to switch the path through which drive power from the second motor is transferred to supply power to the loading drive mechanism and pickup drive mechanism.Type: GrantFiled: January 31, 2000Date of Patent: May 25, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yuji Ariyoshi, Toru Tanaka, Masanao Wakikawa, Kiyoshi Ishioka
-
Publication number: 20030193874Abstract: An optical disk drive includes a turntable, a first motor for turntable drive, an optical pickup and a drive mechanism arranged on a drive base and a separate traverse base that floats on the drive base. A loading drive mechanism drives a disk loading mechanism. A second motor can be driven in forward and reverse directions to supply drive power to the loading drive mechanism and a pickup drive mechanism. A drive power transfer path switching mechanism is used to switch the path through which drive power from the second motor is transferred to supply power to the loading drive mechanism and pickup drive mechanism. By continuously driving the second motor in one direction, then moving the optical pickup, raising or lowering the turntable, and transporting a disk can be accomplished in this sequence substantially continuously. By reversing the direction of motor drive, these operations can be accomplished substantially continuously in reverse direction in reverse sequence.Type: ApplicationFiled: April 29, 2003Publication date: October 16, 2003Inventors: Yuji Ariyoshi, Toru Tanaka, Masanao Wakikawa, Kiyoshi Ishioka
-
Patent number: 6529468Abstract: For providing an optical disk driving device that is capable of accurately performing recording and reproduction of even disks that include warpage without the provision of a tilt mechanism, a clamper is comprised of a central clamper portion for pinching and holding a disk between the clamper and a turntable, and an outer clamper portion for abutting against an outer periphery of the disk and pressurizing the same in case the disk includes any warpage to thereby correct the warpage. It is accordingly possible to restrict an angle formed between a light beam and an information surface of the disk to be within a specified value for accurately performing reproduction.Type: GrantFiled: December 14, 2000Date of Patent: March 4, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yosuke Noda, Yuji Ariyoshi, Katsuhiko Koshino, Kiyoshi Ishioka, Masanori Onishi
-
Publication number: 20020163870Abstract: An optical disk drive according to the present invention comprises, a drive base (10); a traverse base (20) having a turntable (5), a first motor (3) for turntable drive, an optical pickup (6) and drive mechanism thereof; and an intermediate base (80) disposed between the two bases, swings vertically to relative to the drive base and supports the traverse base through an elastic body, and being provided with a drive power transfer path switching mechanism for switching the path through which drive power from a second motor 4 can be driven in forward and reverse to supply drive power to the loading drive mechanism and a pickup drive mechanism, so as to make possible to perform a disk loading operation, a disk rotating operation and a pickup driving operation by 2 motors, and to make possible to achieve both of absorbing vibration from outside and suppressing vibration generated by the rotating operation of the turntable.Type: ApplicationFiled: May 14, 2002Publication date: November 7, 2002Inventors: Yuji Ariyoshi, Yosuke Noda, Michinori Hashizume, Kiyoshi Ishioka
-
Patent number: 6347069Abstract: An optical pickup device featuring reduced number of components and improved workability for achieving cost reduction and improved product quality. A base stand (4) is provided with a first guide section (8) and a second guide section (9) which stand upright from the base stand individually and can slidably engage with the first and second engagement portions (11, 12) provided on a mount base (3), respectively. This arrangement permits the base stand (4) having the guide sections (8,9) fixed thereon to be assembled directrly with the mount base (3) including an optical pickup thereon, resulting in simplified assembly operation and enhanced operation efficiency.Type: GrantFiled: June 18, 1999Date of Patent: February 12, 2002Assignee: Matsushita Electric Industrial Co, LTDInventors: Masanao Wakikawa, Toru Tanaka, Kiyoshi Ishioka, Masanori Onishi
-
Patent number: 6335914Abstract: An optical disc device, having a traverse base includes an optical pickup and a feed motor that drives the optical pickup forward and backward from an inner circumferential position of an optical disc to an outer circumferential position thereof. This device comprises a loading device for transferring an optical disc from the exterior of the device body onto the traverse base, and a loading driving device for driving the loading device by using the driving of the feed motor. The feed motor can move the optical pickup for signal reproduction and eject the optical disc to the exterior of the device, thereby reducing the number of motors used in the device to provide a more inexpensive optical disc device.Type: GrantFiled: June 16, 1999Date of Patent: January 1, 2002Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Toru Tanaka, Yuji Ariyoshi, Masanao Wakikawa, Kiyoshi Ishioka, Masanori Onishi
-
Publication number: 20010030926Abstract: An object of this invention is to reduce the number of motors used in a device to provide a more inexpensive optical disc device. A traverse base (3) includes an optical pickup (7) and a feed motor (11) that drives the optical pickup (7) forward and backward from the inner circumferential position of the optical disc (70) to the outer circumferential position thereof, and this device comprises a loading means for transferring the optical disc (70) from the exterior of the device body (1) onto the traverse base (3) and a loading driving means (30) for driving the loading means by using the driving of the feed motor (11). The feed motor (11) can move the optical pickup (7) for signal reproduction and eject the optical disc (70) to the exterior of the device, thereby reducing the number of motors used in the device to provide a more inexpensive optical disc device.Type: ApplicationFiled: June 16, 1999Publication date: October 18, 2001Inventors: TORU TANAKA, YUJI ARIYOSHI, MASANAO WAKIKAWA, KIYOSHI ISHIOKA, MASANORI ONISHI
-
Publication number: 20010004342Abstract: For providing a optical disk driving device that is capable of accurately performing recording and reproduction also of disks including warpage without the provision of a tilt mechanism, a clamper is comprised of a central clamper portion for pinching and holding a disk with a turntable, and an outer clamper portion for abutting against an outer periphery of the disk and pressurizing the same in case the disk includes any warpage to thereby correct the warpage, if present, through pressurizing; it is accordingly possible to restrict an angle formed between a light beam and an information surface of the disk to be within a specified value for accurately performing reproduction.Type: ApplicationFiled: December 14, 2000Publication date: June 21, 2001Inventors: Yosuke Noda, Yuji Ariyoshi, Katsuhiko Koshino, Kiyoshi Ishioka, Masanori Onishi
-
Patent number: 5987001Abstract: An optical disc drive apparatus including a main tray having a stack of subtrays mounted thereon and movable between withdrawn and inserted positions. When the main tray is moved to the inserted position, the subtrays stacked thereon are held at a stand-by position and a selected one of the subtrays is ready to be drawn towards a loaded position so that an optical disc resting on the selected one of the subtrays can be clamped in position and optically read out.Type: GrantFiled: October 8, 1997Date of Patent: November 16, 1999Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kiyoshi Ishioka, Toru Tanaka, Jun Kitamura