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1. 发明专利

JP2004310883A Optical disk device 审中-公开
公开(公告)号：JP2004310883A
公开(公告)日：2004-11-04
申请号：JP2003101946
申请日：2003-04-04
申请人： Hitachi Ltd , Hitachi-Lg Data Storage Inc , 株式会社日立エルジーデータストレージ , 株式会社日立製作所
发明人： TAKITA KOHEI , NISHIDA IKUO , NARUI YOICHI , SAITO HIRONORI , WATABE KENJI , OCHI MANABU
IPC分类号： G11B33/14 , G11B33/02
摘要： PROBLEM TO BE SOLVED: To provide a technology which prevents heat from staying inside a space between a tray and a circuit board and restrain the increase of a temperature in an electronic component, an optical head and so on.
SOLUTION: In an optical disk drive unit, a through-hole part is provided at a position different from the central aperture 5a in the plane of the tray 5. An air flow generated by the rotation of an optical disk 1 passes through the circuit board 3 and the optical head 4 from the through-hole part. By this, the heat staying between the tray and the circuit board, when recording or reproduction is made, is dissipated.
COPYRIGHT: (C)2005,JPO&NCIPI

2. 发明专利

JP2006228262A Optical disk device 有权
标题翻译：光盘设备
公开(公告)号：JP2006228262A
公开(公告)日：2006-08-31
申请号：JP2005037040
申请日：2005-02-15
申请人： Hitachi Ltd , Hitachi-Lg Data Storage Inc , 株式会社日立エルジーデータストレージ , 株式会社日立製作所
发明人： SHIZUTANI MITSUTAKA , IBE MAKOTO , KONUMA HIDEYUKI , TSUBOTA SHINYA , YAMAUCHI YOSHIAKI , SASAO YOSHIFUMI , OCHI MANABU , TOYODA HIROYUKI
IPC分类号： G11B33/14 , G11B7/12 , G11B25/04
CPC分类号： G11B17/056 , G11B33/121
摘要： PROBLEM TO BE SOLVED: To improve heat radiation characteristics of an optical disk device for driving an optical disk medium such as a CD or a DVD. SOLUTION: This optical disk device includes a casing. The casing is provided with a top case 2 for covering the top surface of an optical disk 4, and a bottom case 3 combined with the top case to cover a part of the optical disk. A tray 5 for mounting the optical disk is received to move in the casing. An exhaust opening 16 is formed in at least one of the top surface of the top case and the part of the bottom case to cover the optical disk. The exhaust opening is disposed in the position of an outer-diameter side apart from the outer edge of the optical disk. Cool air introduced from the front bottom part of the casing into the casing is discharged from the exhaust opening to the outside of the casing. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了改善用于驱动诸如CD或DVD的光盘介质的光盘装置的散热特性。解决方案：该光盘装置包括壳体。壳体设置有用于覆盖光盘4的顶表面的顶壳体2和与顶壳体结合以覆盖光盘的一部分的底壳体3。接收用于安装光盘的托盘5以在壳体中移动。排气口16形成在顶壳的顶表面和底壳的一部分中的至少一个中以覆盖光盘。排气口设置在与光盘的外缘分开的外径侧的位置。从壳体的前底部引入壳体的冷空气从排气口排出到壳体的外部。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2004247000A Disk unit 审中-公开
公开(公告)号：JP2004247000A
公开(公告)日：2004-09-02
申请号：JP2003037580
申请日：2003-02-17
申请人： Hitachi Ltd , Hitachi-Lg Data Storage Inc , 株式会社日立エルジーデータストレージ , 株式会社日立製作所
发明人： OCHI MANABU , KATO MORIKAZU , KIMURA KATSUHIKO , NISHIDA IKUO , TAKITA KOHEI
IPC分类号： G11B33/12 , G11B7/085 , G11B21/02 , G11B25/04 , G11B33/14
摘要： PROBLEM TO BE SOLVED: To provide a disk unit in which increment of flexible rigidity of a flexible print board is suppressed and lowering of performance, a deterioration in life and malfunction of heat generating parts are prevented by providing a plurality of gaps of a direction being orthogonal or almost orthogonal to a movement direction of an optical pickup at a heat transfer member provided at the flexible print board and which has therefore high reliability.
SOLUTION: The flexible print board is provided with a second conductor 473 having a plurality of parts having the gaps at a plane being different from a plane on which a first conductor 472 to which the optical pickup and a circuit board are connected and which performs input/output of a signal is constituted.
COPYRIGHT: (C)2004,JPO&NCIPI

4. 发明专利

JP2007157261A Optical disk drive unit 审中-公开
标题翻译：光盘驱动单元
公开(公告)号：JP2007157261A
公开(公告)日：2007-06-21
申请号：JP2005352467
申请日：2005-12-06
申请人： Hitachi Ltd , Hitachi-Lg Data Storage Inc , 株式会社日立エルジーデータストレージ , 株式会社日立製作所
发明人： YAMAUCHI YOSHIAKI , OCHI MANABU , KIMURA KATSUHIKO , TSUBOTA SHINYA , KATO MORIKAZU , KONUMA HIDEYUKI , HARADA NOZOMI
IPC分类号： G11B33/14 , G11B33/02
摘要： PROBLEM TO BE SOLVED: To provide a disk drive unit capable of radiating internal heat even when the disk drive unit is a slim type or when the rotational frequency of a disk is low. SOLUTION: The disk drive unit has a case composed of a top cover and a bottom cover, a disk tray capable of moving between a loading position and an ejecting position by a guide mechanism provided on the bottom cover, a spindle motor and an optical head which are mounted on the disk tray and can move together with the disk tray, a disk tray pushing-out mechanism which pushes the disk tray out toward the ejecting position, and an ejection lock mechanism which holds the disk tray at the loading position, and while the spindle motor and optical head are driven, a portion of the front end of the disk tray is held at a projection position where it projects from the case. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：即使当盘驱动单元是细长类型或者当盘的旋转频率低时，提供能够散热内部热量的盘驱动单元。解决方案：磁盘驱动单元具有由顶盖和底盖组成的壳体，能够通过设置在底盖上的引导机构在装载位置和排出位置之间移动的盘托盘，主轴电机和安装在盘托架上并可与盘托架一起移动的光头，将盘托盘向弹出位置推出的盘托盘推出机构，以及在装载时保持盘托盘的弹出锁定机构位置，并且当主轴电机和光头被驱动时，盘托盘的前端的一部分被保持在其从壳体突出的突出位置处。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2003249067A OPTICAL DISK DRIVE 审中-公开
公开(公告)号：JP2003249067A
公开(公告)日：2003-09-05
申请号：JP2002049086
申请日：2002-02-26
申请人： HITACHI LTD , HITACHI LG DATA STORAGE INC
发明人： HIRASAWA SHIGEKI , OHASHI SHIGEO , NAKANISHI MASATO , OCHI MANABU
IPC分类号： G11B33/14 , H05K7/20
摘要： PROBLEM TO BE SOLVED: To provide an optical disk drive which radiates the heat generated in electronic parts without raising the temperature of an internal disk. SOLUTION: The optical disk drive comprises the optical disk 1, the electronic parts 7 mounted on a wiring substrate 6 and a case 9 for housing these members, in which the case 9 is internally provided with an intermediate case 11 for separating the interior of the case to a first space region housing the optical disk 1 and a second space region housing the electronic parts 7 and the electronic parts 7 are fixed to the case 9 of the second space region. COPYRIGHT: (C)2003,JPO

6. 发明专利

JP2004326860A Optical disk unit 审中-公开
公开(公告)号：JP2004326860A
公开(公告)日：2004-11-18
申请号：JP2003117050
申请日：2003-04-22
申请人： Hitachi Ltd , Hitachi Media Electoronics Co Ltd , 株式会社日立メディアエレクトロニクス , 株式会社日立製作所
发明人： OCHI MANABU , OGASAWARA HIROSHI
IPC分类号： G11B33/14 , G11B7/085 , G11B7/12 , G11B7/125
摘要： PROBLEM TO BE SOLVED: To prevent performance degradation, life degradation and operation errors of an optical disk unit by suppressing the temperature of a light emitting element mounted on an optical pickup to an operation guarantee temperature or lower while controlling the number of revolution of the disk and the position of an optical pick. SOLUTION: When the temperature detector of the light emitting element being a heating element detects that the temperature of the light emitting element exceeds the specified value of the upper limit of the use temperature of the light emitting element, the optical pickup is moved so that the distance from the center of the rotation of the disk to the light emitting element falls within the range of 1.0 to 1.2 times of the radius of the disk and also the number of revolution of the disk is controlled so as to become a roughly constant value within a range of 50Hz to 60Hz and moreover the supply current to the light emitting element is interrupted. Thus, it is made possible to efficiently cool the light emitting element. COPYRIGHT: (C)2005,JPO&NCIPI

7. 发明专利

JP2004171663A Optical disk unit 审中-公开
公开(公告)号：JP2004171663A
公开(公告)日：2004-06-17
申请号：JP2002335943
申请日：2002-11-20
申请人： Hitachi Ltd , Hitachi Media Electoronics Co Ltd , 株式会社日立メディアエレクトロニクス , 株式会社日立製作所
发明人： OCHI MANABU , KIMURA KATSUHIKO , OHASHI SHIGEO , NAKANISHI MASATO , OGASAWARA HIROSHI
IPC分类号： G11B7/12
摘要： PROBLEM TO BE SOLVED: To provide a highly reliable optical disk unit in which the heat generated in a pickup is absorbed and the temperature of a semiconductor laser mounted on the optical pickup is restricted to an operation guarantee temperature or lower thereby preventing performance deterioration, life degradation and erroneous operations of the unit.
SOLUTION: In the optical disk unit provided with an optical pickup 7 on which a light emitting element 72 for emitting a laser beam, a laser drive circuit for driving the light emitting element 72 and an optical component for guiding the laser beam to a disk are mounted, a latent heat storing material 77b is disposed in the optical pickup 7.
COPYRIGHT: (C)2004,JPO

8. 发明专利

JP2005129097A Optical pickup device 有权
标题翻译：光学拾取器件
公开(公告)号：JP2005129097A
公开(公告)日：2005-05-19
申请号：JP2003360665
申请日：2003-10-21
申请人： Hitachi Ltd , Hitachi Media Electoronics Co Ltd , 株式会社日立メディアエレクトロニクス , 株式会社日立製作所
发明人： OCHI MANABU , OGASAWARA HIROSHI , TAGUCHI HIROBUMI , KATO MORIKAZU
IPC分类号： G11B7/08 , G11B7/00 , G11B7/085 , G11B7/09 , G11B7/12 , G11B7/125 , G11B7/135 , G11B33/14
CPC分类号： G11B7/127 , G11B7/082
摘要： PROBLEM TO BE SOLVED: To improve a reliability by preventing degradation of performance, deterioration of service life and the occurrence of misoperations caused by heat generation, in a laser light source and a laser drive circuit. SOLUTION: The laser drive circuit 73 is connected to a flexible board 76 and arranged in a groove or a hole 71a, provided near the laser light source fixing part of an optical pickup case 17. The laser drive circuit 73 is connected to an upper cover 77 which is nearer to the side from the laser drive circuit 73 of the upper and lower covers 771, is772 by a heat conducting part 78. Thereby, heating of the laser drive circuit 73 is conducted to the upper cover 771 via the heat conduction member 78, and radiated to the outside of an optical pickup device 7, diffusing to an in-plane direction of the upper cover 771. Also, the laser drive circuit 73 is arranged at a position which is almost at an equal distance from two laser light sources, and at the inner peripheral side with respect to the laser light source. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：通过在激光光源和激光驱动电路中防止性能劣化，使用寿命恶化和由发热引起的误操作的发生来提高可靠性。
解决方案：激光驱动电路73连接到柔性板76并且布置在设置在光学拾取器壳体17的激光光源固定部附近的凹槽或孔71a中。激光驱动电路73连接到通过导热部78使从上下盖771的激光驱动电路73的一侧靠近的上盖77成为772.由此，激光驱动电路73的加热通过上盖771通过热传导构件78，并且辐射到光学拾取装置7的外部，扩散到上盖771的面内方向。此外，激光驱动电路73布置在几乎与距离两个激光源，并且在相对于激光源的内周侧。版权所有（C）2005，JPO＆NCIPI

9. 发明专利

JP2005108336A Optical head device 审中-公开
标题翻译：光头设备
公开(公告)号：JP2005108336A
公开(公告)日：2005-04-21
申请号：JP2003341330
申请日：2003-09-30
申请人： Hitachi Ltd , Hitachi Media Electoronics Co Ltd , 株式会社日立メディアエレクトロニクス , 株式会社日立製作所
发明人： FURUICHI HIROO , OZEKI YOSHIO , TOGAWA HIDEO , OCHI MANABU , IZUMI KATSUHIKO , TAKAHASHI KAZUMI , WATANABE MASAYOSHI , MATSUMOTO KUNIO
IPC分类号： G11B7/08 , G11B7/12 , G11B7/135 , G11B7/22
摘要： PROBLEM TO BE SOLVED: To provide an optical head device which suppresses positional deviation of incident light in the direction P (longitudinal direction) of a photodetector when the arrangement of an optical system is deformed or displaced under the influence of the temperature or the humidity in which the optical head device is used. SOLUTION: The objective lens-side part 15 of a prism 6 is adhered and fixed to a holding member 17 by using a hard adhesive 62 having a large elastic modulus, and parts 14 other than the above part are adhered and fixed by using a soft adhesive 61 having a small elastic modulus. Further, auxiliary lenses 3, 5 and a detection lens 11 are adhered and fixed (31, 51, 81) on the adhering and fixing face of the prism. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种光学头装置，当光学系统的布置在温度的影响下变形或位移时，抑制入射光在光电检测器的方向P（纵向）上的位置偏移），或使用光头装置的湿度。解决方案：棱镜6的物镜侧部分15通过使用具有大的弹性模量的硬质粘合剂62粘附并固定到保持构件17上，除了上述部分之外的部分14通过使用具有小弹性模量的软粘合剂61。此外，辅助透镜3,5和检测透镜11在棱镜的粘附固定面上被固定（31,51,81）。版权所有（C）2005，JPO＆NCIPI

10. 发明专利

JP2004241032A Optical pickup and disk drive using the same 有权
公开(公告)号：JP2004241032A
公开(公告)日：2004-08-26
申请号：JP2003028227
申请日：2003-02-05
申请人： Hitachi Ltd , Hitachi Media Electoronics Co Ltd , 株式会社日立メディアエレクトロニクス , 株式会社日立製作所
发明人： KATO MORIKAZU , OGASAWARA HIROSHI , OCHI MANABU , OHASHI SHIGEO , NAKANISHI MASATO
IPC分类号： G11B7/125
摘要： PROBLEM TO BE SOLVED: To provide a highly reliable optical pickup and a high-quality disk drive using the same. SOLUTION: The heat generating members such as the laser diode 14 of an optical pickup 4, a laser driving circuit board or the like are connected to a heat transfer member, and the connection part is disposed near an optical component attaching part and, for the heat transport member, the connection part is disposed near the optical component attaching part so as to uniformly transmit the heat to the attaching part of an optical component 12. A heat transport member 13 is disposed in the optical pickup 4, and the amount of the heat of the components such as the laser diode 14, the laser driving circuit board or the like which generates heat at the time of reproducing the information of the disk or recording the disk therein are uniformly applied to the optical component 12. Thus, the heat deformation caused by the local temperature distribution of the optical components is prevented. In the disk drive using such an optical pickup, the circuit operation errors are prevented, the reliability of the device is enhanced, and the high-quality disk drive is provided. COPYRIGHT: (C)2004,JPO&NCIPI

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