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41. 发明申请

US20060119971A1 Thermal assist head slider 失效
公开(公告)号：US20060119971A1
公开(公告)日：2006-06-08
申请号：US11299076
申请日：2005-12-08
申请人： Masayuki Kurita , Takehiko Hamaguchi , Hidekazu Kohira , Mikio Tokuyama
发明人： Masayuki Kurita , Takehiko Hamaguchi , Hidekazu Kohira , Mikio Tokuyama
IPC分类号： G11B17/00
CPC分类号： G11B5/3967 , G11B5/012 , G11B5/127 , G11B5/3103 , G11B5/4886 , G11B5/4923 , G11B5/4969 , G11B2005/0005 , G11B2005/0021
摘要： In a magnetic disk apparatus, mounting of plural heating elements to a magnetic head slider is permitted. Thermally assisted magnetic recording from inner to outer surface is permitted at a small amount of power consumption. In one embodiment, the magnetic disk apparatus has a magnetic disk on which magnetic information is recorded, a magnetic head slider having an air bearing surface for floating from the magnetic disk in proximity thereto, and a rotary actuator moving over the disk arcuately while supporting the magnetic head slider by a suspension. A recording element acting to record magnetic information on the magnetic disk, a playback element acting to play back the magnetic information recorded on the magnetic disk, and plural heating elements acting to locally heat the magnetic disk are carried on the magnetic head slider. A circuit for switching energization to the plural heating elements and according to information about the direction of a DC power supply VH, frequency contained in an AC power supply, or the like is formed.

42. 发明授权

US06822818B2 Magnetic hard disk drive 失效
标题翻译：磁性硬盘驱动器
公开(公告)号：US06822818B2
公开(公告)日：2004-11-23
申请号：US09919915
申请日：2001-08-02
申请人： Takehiko Hamaguchi , Kyo Akagi , Hisashi Takano , Takayuki Ichihara
发明人： Takehiko Hamaguchi , Kyo Akagi , Hisashi Takano , Takayuki Ichihara
IPC分类号： G11B509
CPC分类号： G11B20/1252 , G11B5/012 , G11B5/5582 , G11B5/59611 , G11B5/59655 , G11B5/59694 , G11B20/10 , G11B27/3027 , G11B2020/1232 , G11B2020/1238 , G11B2020/1267 , G11B2020/1287 , G11B2220/20 , G11B2220/2516
摘要： A hard disk drive and magnetic medium including a servo area, a data area divided into a plurality of sector blocks and at least one micro-servo area disposed between two sector blocks. There may be a micro-servo area immediately preceding each of the plurality of sector blocks. The micro-servo areas include an address mark and a track parity check code that allow the detection of an external shock that causes the recording (write) head to skip to an adjacent track in the hard disk medium. The micro-servo area is smaller than the servo areas, and various numbers of different track parity check codes can be used for different resolution of shock detection. An acceleration sensor may also be provided to detect larger external shocks. By detecting various external shocks with improved accuracy, and aborting the recording operation of data if an external shock is detected, the corruption of data in adjacent tracks is substantially reduced to improve disk drive performance.
摘要翻译：一种硬盘驱动器和磁介质，包括伺服区域，分成多个扇区块的数据区域和设置在两个扇区块之间的至少一个微伺服区域。可能存在紧邻在多个扇区块中的每一个之前的微伺服区域。微伺服区域包括地址标记和轨道奇偶校验码，其允许检测导致记录（写入）头跳到硬盘介质中的相邻轨道的外部冲击。微伺服区域小于伺服区域，各种数量的不同轨道奇偶校验码可用于不同的震动检测分辨率。还可以提供加速度传感器来检测更大的外部冲击。通过以更高的精度检测各种外部冲击，并且如果检测到外部冲击则中止数据的记录操作，则相当的磁道中的数据的损坏被大大减少以提高磁盘驱动器的性能。

43. 发明授权

US06473254B1 Method and system for compensation of nonlinearity or fluctuation of head-position signal 失效
公开(公告)号：US06473254B1
公开(公告)日：2002-10-29
申请号：US09506270
申请日：2000-02-17
申请人： Takehiko Hamaguchi , Futoshi Tomiyama , Hideki Zaitsu , Hisashi Takano
发明人： Takehiko Hamaguchi , Futoshi Tomiyama , Hideki Zaitsu , Hisashi Takano
IPC分类号： G11B509
CPC分类号： B82Y10/00 , B82Y25/00 , G11B5/012 , G11B5/3909 , G11B5/5552 , G11B5/59611 , G11B2005/001 , G11B2005/0016
摘要： A plurality of patterns are formed so that each is deviated slightly from another in each sector in the track width direction. Then, the pattern is followed up, thereby obtaining both a full-track profile and a micro-track profile. A variation of a position signal is detected from this profile, thereby creating a table for correcting the non-linearity error of the position signal. Consequently, the distribution of the write/read-back property is measured, thereby enabling the track density to be improved. Furthermore, a variation of the position signal caused by a property variation of the head read-back element is detected and corrected, thereby enabling a high reliability and a high track density to be realized for the object magnetic recording disk apparatus.

44. 发明授权

US5786952A Magnetic digital storage method and system wherein magnetic transition points in adjacent recorded tracks are out of phase with each other 失效
标题翻译：磁数字存储方法和系统，其中相邻记录磁道中的磁转变点彼此不同相
公开(公告)号：US5786952A
公开(公告)日：1998-07-28
申请号：US562203
申请日：1995-11-22
申请人： Masuo Umemoto , Yoshihiro Shiroishi , Reijiro Tsuchiya , Kyo Akagi , Takehiko Hamaguchi , Takashi Kawabe , Atsushi Saito , Kouichirou Wakabayashi
发明人： Masuo Umemoto , Yoshihiro Shiroishi , Reijiro Tsuchiya , Kyo Akagi , Takehiko Hamaguchi , Takashi Kawabe , Atsushi Saito , Kouichirou Wakabayashi
IPC分类号： G11B5/012 , G11B5/035 , G11B5/09 , G11B5/48 , G11B5/49 , G11B5/55 , G11B5/596 , G11B20/10
CPC分类号： G11B5/59633 , G11B20/10009 , G11B5/012 , G11B5/09 , G11B5/4886 , G11B5/4976 , G11B5/5526 , G11B5/035
摘要： A magnetic digital storage method and system which can improve a recording density and can reduce a cross-talk upon reproducing. An inputted high-speed digital signal is converted to a plurality of low-speed digital signal sequences by a recording circuit and each of the low-speed signal sequence is recorded onto a plurality of adjacent recorded tracks of a recording medium by integrated parallel recording heads. One servo signal is commonly recorded to the plurality of recorded tracks. Further, when recording the digital signal to the adjacent recorded tracks of the recording medium, a delay of a signal that is applied to each recording head is adjusted such that the phases of magnetic transition points given by the recording signal in the adjacent recorded tracks are not identical in the circumferential direction.
摘要翻译：一种磁数字存储方法和系统，其可以提高记录密度并且可以在再现时减少串扰。输入的高速数字信号通过记录电路转换成多个低速数字信号序列，并且每个低速信号序列通过集成并行记录头记录在记录介质的多个相邻的记录磁道上。一个伺服信号通常记录到多个记录的轨道。此外，当将数字信号记录到记录介质的相邻记录磁道时，调整施加到每个记录头的信号的延迟，使得由相邻记录磁道中的记录信号给出的磁转变点的相位为在圆周方向上不相同。

45. 发明授权

US4959796A Method of producing analytical curve 失效
标题翻译：生产分析曲线的方法
公开(公告)号：US4959796A
公开(公告)日：1990-09-25
申请号：US268928
申请日：1988-11-09
申请人： Seiji Hidaka , Takashi Ishihara , Takehiko Hamaguchi , Nobuaki Sugiyama , Kosuke Toura
发明人： Seiji Hidaka , Takashi Ishihara , Takehiko Hamaguchi , Nobuaki Sugiyama , Kosuke Toura
IPC分类号： G01N21/47 , G01N21/27 , G01N21/78 , G01N35/00
CPC分类号： G01N21/274 , G06F19/3412 , G06F19/366 , G01N35/00029
摘要： A method of producing an analytical curve for an analyzing apparatus which provides an analysis result on the basis of the analytical curve in response to a measurement value obtained by photoelectrically measuring light intensity reflected from a slide to be analyzed. A plurality of reference slides are measured by first analyzing apparatus which has a predetermined analytical curve, thereby obtaining a plurality of first measurement values and providing a plurality of first analysis results. The plurality of reference slides are further measured by second analyzing apparatus, thereby obtaining a plurality of second measurement values. Analytical curve for the second analyzing apparatus for produced on the basis of a relation between the first measurement values and the second measurement values so that a plurality of second analysis results correspond to the plurality of first analysis results.
摘要翻译：一种生成分析装置的分析曲线的方法，该分析装置响应于通过光电测量从待分析的载玻片反射的光强而获得的测量值，基于分析曲线提供分析结果。通过具有预定分析曲线的第一分析装置测量多个参考幻灯片，从而获得多个第一测量值并提供多个第一分析结果。通过第二分析装置进一步测量多个参考幻灯片，从而获得多个第二测量值。基于第一测量值和第二测量值之间的关系产生的第二分析设备的分析曲线，使得多个第二分析结果对应于多个第一分析结果。

46. 发明授权

US4545661A Folding camera with movable member mounting an objective lens and reflex mirror 失效
标题翻译：折叠式摄像机，可移动构件安装物镜和反光镜
公开(公告)号：US4545661A
公开(公告)日：1985-10-08
申请号：US492493
申请日：1983-05-05
申请人： Takehiko Hamaguchi , Kiyoaki Hazama , Kenichi Iwaida , Takeyoshi Iguchi
发明人： Takehiko Hamaguchi , Kiyoaki Hazama , Kenichi Iwaida , Takeyoshi Iguchi
IPC分类号： G03B17/52 , G03B17/04 , G03B19/12
CPC分类号： G03B17/52
摘要： A foldable camera for self-developing film comprises a base housing and a movable member pivotable between a closed position integrated with the housing and an open, elevated position above the housing. The movable member is mounted to a supporting member which is pivotally coupled to the housing at the end opposite from the film exit end of the housing. An objective lens and a reflex mirror are fixedly mounted to the movable member in fixed relationship to each other such that they are in the proper positions for film exposure when the movable member is pivotted to the elevated position.
摘要翻译：用于自显影胶片的可折叠照相机包括基座壳体和可在与壳体一体化的关闭位置和壳体上方开放的升高位置之间枢转的可移动部件。可移动构件安装到支撑构件，支撑构件在与壳体的膜出口端相对的端部枢转地联接到壳体。物镜和反射镜固定地安装在可动件上，彼此固定，使得当可动件枢转到提升位置时，它们处于用于胶片曝光的适当位置。

47. 发明授权

US08049986B2 Control method for magnetic disk device, magnetic disk device, and magnetic disk 有权
标题翻译：磁盘装置，磁盘装置和磁盘的控制方法
公开(公告)号：US08049986B2
公开(公告)日：2011-11-01
申请号：US12543845
申请日：2009-08-19
申请人： Kenya Ito , Takehiko Hamaguchi
发明人： Kenya Ito , Takehiko Hamaguchi
IPC分类号： G11B21/02 , G11B27/36 , G11B5/09
CPC分类号： G11B5/012 , B82Y10/00 , G11B5/1278 , G11B5/743 , G11B5/746 , G11B5/82 , G11B2005/0013
摘要： According to one embodiment, a control method for a magnetic disk device includes writing data by varying a phase of the array period of the plurality of magnetic elements or a phase of the time period of the recording signal in one section of the track from a corresponding phase in another section of the track, reading a reproduction signal from the track, and determining a phase shift between the array period of the plurality of magnetic elements and the time period of the recording signal, based on a reproduction signal read from the one section and a reproduction signal read from the other section. In another embodiment, a magnetic disk includes a track in which magnetic elements are magnetically separated and arranged in an array period, and a phase of the array period in one section is different from a phase in another section of the track.
摘要翻译：根据一个实施例，一种用于磁盘装置的控制方法包括：通过改变多个磁性元件的阵列周期的相位或从轨道的一个部分中的记录信号的时间段的相位来写入数据在轨道的另一部分中相位，从轨道读取再现信号，并且基于从一个部分读取的再现信号，确定多个磁性元件的阵列周期与记录信号的时间段之间的相移以及从另一部分读取的再现信号。在另一个实施例中，磁盘包括其中磁性元件以阵列周期被磁性地分离和布置的轨道，并且一个部分中的阵列周期的相位不同于轨道的另一部分中的相位。

48. 发明授权

US07443625B2 Magnetic disk drive 有权
标题翻译：磁盘驱动器
公开(公告)号：US07443625B2
公开(公告)日：2008-10-28
申请号：US11404780
申请日：2006-04-17
申请人： Takehiko Hamaguchi , Atsushi Nakamura , Yasutaka Nishida , Hisashi Takano , Yohji Maruyama , Hiroshi Ide , Hideki Sawaguchi , Futoshi Tomiyama
发明人： Takehiko Hamaguchi , Atsushi Nakamura , Yasutaka Nishida , Hisashi Takano , Yohji Maruyama , Hiroshi Ide , Hideki Sawaguchi , Futoshi Tomiyama
IPC分类号： G11B5/02
CPC分类号： G11B5/012 , G11B5/4886 , G11B27/02
摘要： In the present invention, by making the width of the write element larger than the track pitch and securing a write magnetic field strong enough to reverse the magnetization of the magnetic layer, and further by writing while shifting a write head comprising the write element, a magnetic disk drive, of which the track width is narrower than the write element width, and the storage capacity is large, is realized.
摘要翻译：在本发明中，通过使写入元件的宽度大于轨道间距，并且确保写入磁场足够强以反转磁性层的磁化，并且进一步通过在包括写入元件的写入头的移位的同时进行写入，磁盘驱动器，其轨道宽度比写入元件宽度窄，并且存储容量大。

49. 发明申请

US20080192379A1 Manufacturing method for magnetic disk drive 审中-公开
标题翻译：磁盘驱动器的制造方法
公开(公告)号：US20080192379A1
公开(公告)日：2008-08-14
申请号：US12011284
申请日：2008-01-24
申请人： Masayuki Kurita , Hideaki Tanaka , Noriaki Satoh , Toyomi Ohsawa , Toshiya Shiramatsu , Atsushi Yatagai , Satoshi Ohki , Hiroshi Ide , Hidekazu Kohira , Takehiko Hamaguchi
发明人： Masayuki Kurita , Hideaki Tanaka , Noriaki Satoh , Toyomi Ohsawa , Toshiya Shiramatsu , Atsushi Yatagai , Satoshi Ohki , Hiroshi Ide , Hidekazu Kohira , Takehiko Hamaguchi
IPC分类号： G11B5/48 , G11B5/56 , G11B5/60 , G11B21/21 , G01R31/01
CPC分类号： G11B5/455 , G11B5/3133 , G11B5/6029 , G11B5/607 , G11B5/6076 , Y10T29/49004
摘要： Embodiments of the present invention provide a process that monitors a magnetic playback signal while gradually increasing an electricity supply amount for a heater to thereby determine contact between a magnetic head slider and a magnetic disk medium. According to one embodiment, after components for configuring a magnetic recording/playback portion are assembled into a housing, magnetic information is played back on a specific track of a magnetic disk medium by using a playback element while gradually increasing an electricity supply amount for a heater of a magnetic head slider. An amplitude of a playback signal is measured at a plurality of portions along a circumferential direction of the track. Contact between the magnetic head slider and the magnetic disk medium is detected in accordance with an increase in variation in the measured amplitude. Then, a value obtained by subtracting an predetermined value of an electricity amount from an electricity amount in the event of detection of the contact is stored (set) as an appropriate electricity amount for the magnetic head slider into a storage portion.
摘要翻译：本发明的实施例提供了一种监视磁回放信号的过程，同时逐渐增加用于加热器的电力供应量，从而确定磁头滑块和磁盘介质之间的接触。根据一个实施例，在用于配置磁记录/重放部分的组件被组装到外壳中之后，通过使用回放元件在磁盘介质的特定轨道上回放磁信息，同时逐渐增加加热器的供电量的磁头滑块。沿着轨道的圆周方向的多个部分测量重放信号的幅度。根据测量幅度的变化的增加来检测磁头滑块和磁盘介质之间的接触。然后，通过从检测到接触的电量的电量中减去电量的预定值而获得的值作为用于磁头滑块的适当电量被存储（设置）到存储部分中。

50. 发明申请

US20070247741A1 Method of servo pattern writing on recording surface and data storage device 审中-公开
标题翻译：记录表面和数据存储设备上伺服模式写入的方法
公开(公告)号：US20070247741A1
公开(公告)日：2007-10-25
申请号：US11788490
申请日：2007-04-20
申请人： Kyo Akagi , Takehiko Hamaguchi , Atsushi Takeichi
发明人： Kyo Akagi , Takehiko Hamaguchi , Atsushi Takeichi
IPC分类号： G11B21/02 , G11B5/596
CPC分类号： G11B5/59655 , G11B5/024
摘要： In an embodiment of the present invention, with Self Servo Write (SSW), a head slider is used to perform AC erase to a recording surface of a magnetic disk. The AC erase is performed asynchronously to every track. A frequency for use with AC erase, i.e., a frequency of an AC erase pattern is three times or higher than a burst frequency of a product servo pattern or a burst frequency of a radial pattern. By satisfying such requirements, for the magnetic disk of vertical magnetic recording, it becomes possible to substantially stop adversely affecting pattern reading in an AC erase area.
摘要翻译：在本发明的一个实施例中，使用自动伺服写入（SSW），磁头滑动器用于对磁盘的记录表面执行AC擦除。 AC擦除与每个轨道异步执行。用于AC擦除的频率，即AC擦除模式的频率是产品伺服模式的突发频率或径向图案的突发频率的三倍或更高。通过满足这种要求，对于垂直磁记录磁盘，可以基本上停止对交流擦除区域中的图形读取的不利影响。

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