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1. 发明授权

EP1555605B1 Image forming apparatus, erasing method and hard disk management method 有权
公开(公告)号：EP1555605B1
公开(公告)日：2018-08-08
申请号：EP04020624.5
申请日：2004-08-31
申请人： Ricoh Company, Ltd.
发明人： Hattori, Yasuhiro , Satoh, Ken , Shindoh, Hidenori , Yamazaki, Takahiro
IPC分类号： G06F3/06 , H04N1/32 , G11B5/024 , G06F1/00
CPC分类号： G11B5/024 , G06F3/0613 , G06F3/0623 , G06F3/0652 , G06F3/0676
摘要： An image forming apparatus includes a plurality of erase information (301) each showing whether or not to erase data for each of a plurality of divided areas into which the hard disk is divided, group erase information (303) showing groups grouping the erase information, and erase count information determined based on the group erase information. Based on the erase count information whether or not there is a divided area to erase, the divided area is erased.

2. 发明公开

EP3116652A4 HARD DRIVE DATA DESTROYING DEVICE 审中-公开
公开(公告)号：EP3116652A4
公开(公告)日：2017-11-15
申请号：EP14885547
申请日：2014-08-11
申请人： SERENITY DATA SECURITY LLC
发明人： CLARK KEVIN P
IPC分类号： B02C18/06 , B23B41/00 , B23B51/04 , B23C1/08 , B23C3/00 , B23K26/12 , B23K26/142 , B23K26/382 , B23K26/384 , B23K101/36 , B23Q3/06 , B23Q11/00 , B23Q11/08 , G06F21/80 , G11B5/024 , G11B23/50
CPC分类号： G11B5/0245 , B23B35/00 , B23B41/00 , B23B51/0426 , B23C1/08 , B23C3/00 , B23K26/127 , B23K26/142 , B23K26/382 , B23K26/384 , B23K2201/36 , B23Q3/069 , B23Q11/0046 , B23Q11/0891 , B23Q2230/002 , G11B23/505 , Y10T408/03 , Y10T408/45 , Y10T408/56238 , Y10T408/8973 , Y10T409/300896 , Y10T409/303752 , Y10T409/30392 , Y10T409/304088 , Y10T409/306944 , Y10T409/307 , Y10T409/307168 , Y10T409/309016
摘要： Three systems for the destruction of the data storage portion of electronic media storage devices such as hard disk drives, solid state drives and hybrid hard drives. One system utilizes a mill cutter with which the hard drive has relative motion in the direction of the axis of the mill cutter to destroy the data storage portion. A second system utilizes a laser to physically destroy the data storage portion. The third system utilizes a chemical solvent to chemically destroy the data storage portion.

3. 发明公开

EP1952248A4 HARD DRIVE ERASER 审中-公开
标题翻译： HARD DISK ERASE DEVICE
公开(公告)号：EP1952248A4
公开(公告)日：2012-03-07
申请号：EP06826239
申请日：2006-10-19
申请人： ENSCONCE DATA TECHNOLOGY INC
发明人： THORSEN JACK D
IPC分类号： G06F13/00 , G06F12/00 , G06F21/00 , G11B5/024
CPC分类号： G06F21/6218 , G06F2221/2143 , G11B5/024 , G11B20/00666

4. 发明公开

EP1662487A4 MAGNETIC DATA ERASE DEVICE AND MAGNETIC DATA ERASE METHOD 审中-公开
标题翻译：磁数据清除装置和磁数据擦除方法
公开(公告)号：EP1662487A4
公开(公告)日：2009-03-25
申请号：EP04745643
申请日：2004-06-07
申请人： ORIENT INSTR COMP CO LTD
发明人： ITO TOMOAKI
IPC分类号： G11B5/024
CPC分类号： G11B5/0245
摘要： There are provided a magnetic data erase device and method capable of completely demagnetizing a recording medium of a magnetic recording device and surely erasing magnetic data. The magnetic data erase device and method can erase magnetic data recorded in a computer having a built-in magnetic recording medium and a hard disc device as they are. The magnetic data erase device includes a power supply circuit section (2) for generating attenuation alternation voltage reducing the peak value as the time elapses, a container section for containing a magnetic recording medium, and a demagnetization coil (15). The attenuation alternation voltage generated in the power supply circuit section (2) is electrically connected to the demagnetization coil (15) so as to generate in a container section an attenuation alternation magnetic field having a magnetic flux density whose maximum value is lowered as the time elapses, thereby erasing the magnetic data in the magnetic recording medium.

5. 发明公开

EP1906388A1 MAGNETIC DATA ERASING DEVICE 审中-公开
标题翻译： MAGNETDATENLÖSCHEINRICHTUNG
公开(公告)号：EP1906388A1
公开(公告)日：2008-04-02
申请号：EP06781354.3
申请日：2006-07-20
申请人： Orient Instrument Computer Co., Ltd
发明人： ITO, Tomoaki Orient Instrument Computer Co., Ltd.
IPC分类号： G11B5/024
CPC分类号： G11B5/0245
摘要： It is an object of the present invention to provide a magnetic data eraser being inexpensive and having improved safety with a simple structure.
A magnetic data eraser 1 includes a power supply circuit 2, a receptacle 28a for accommodating a magnetic recording medium or a device incorporating a magnetic recording medium, primary and secondary coils 15 and 17 wound around an outer periphery of the receptacle 28a. The primary coil 15 is connected to the power supply circuit 2. The secondary coil is short-circuited. Excitation of the primary coil 15 through energization by the power supply circuit 2 generates an induced current in the secondary coil 17, thereby making an interaction between the primary and secondary coils 15 and 17. The interaction generates an alternating magnetic field, whereby the magnetic recording medium is degaussed, so as to erase magnetic data recorded in the medium.
摘要翻译：本发明的一个目的是提供一种廉价的磁数据擦除器，并以简单的结构提高了安全性。磁数据擦除器1包括电源电路2，用于容纳磁记录介质的容器28a或包含磁记录介质的装置，缠绕在容座28a的外周的一次和二次线圈15和17。初级线圈15连接到电源电路2.次级线圈短路。通过由电源电路2通电而对初级线圈15的激励在次级线圈17中产生感应电流，从而在初级线圈15和次级线圈17之间产生相互作用。相互作用产生交变磁场，由此磁记录介质消磁，以便擦除记录在介质中的磁数据。

6. 发明公开

EP1744306A3 Data erasure apparatus and data erasure method 审中-公开
标题翻译：装置和方法用于数据擦除
公开(公告)号：EP1744306A3
公开(公告)日：2007-01-31
申请号：EP06012559.8
申请日：2006-06-19
申请人： Hitachi Global Storage Technologies B. V.
发明人： Kitamura, Mitsuru , Katoh, Masahiko
IPC分类号： G11B5/024 , G11B5/012
CPC分类号： G11B5/0245 , G11B5/012
摘要： Disclosed is a method for erasing data recorded on a magnetic disk, which is housed in a magnetic disk drive, by using an external erasure magnetic field generated by an external erasure magnetic field generator. The method comprises the steps of: moving a first magnetic disk drive within an external erasure magnetic field in a moving state appropriate for the type of the first magnetic disk drive, and erasing data recorded on a magnetic disk in the first magnetic disk drive; and moving a second magnetic disk drive, which differs in type from the first magnetic disk drive, within an external erasure magnetic field in a moving state that differs from the moving state of the first magnetic disk drive, and erasing data recorded on a magnetic disk in the second magnetic disk drive.

7. 发明公开

EP1662487A1 MAGNETIC DATA ERASE DEVICE AND MAGNETIC DATA ERASE METHOD 审中-公开
标题翻译： MAGNETISCHE DATENLSCHEINRICHTUNG UND MAGNETISCHESDATENLÖSCHVERFAHREN
公开(公告)号：EP1662487A1
公开(公告)日：2006-05-31
申请号：EP04745643.9
申请日：2004-06-07
申请人： Orient Instrument Computer Co., Ltd
发明人： ITO, Tomoaki ORIENT INSTRUMENT COMPUTER CO., LTD.
IPC分类号： G11B5/024
CPC分类号： G11B5/0245
摘要： A magnetic data eraser adapted to completely degauss a recording medium in a magnetic recording device to erase magnetic data with certainty and a method for erasing magnetic data, and further, a magnetic data eraser also adapted to erase recorded magnetic data on a magnetic recording medium or a hard disk drive incorporated in a computer and a method for erasing magnetic data.
The magnetic data eraser (1, 3, 5) includes a power supply circuit (2) for generating an attenuating alternating voltage whose peak value reduces as time passes, a receptacle (20a, 28a) for accommodating a magnetic recording medium (22a, 32a, 33), and an electric coil (15) for degaussing the magnetic recording medium (22a, 32a, 33), and is adapted to apply the attenuating alternating voltage generated in the power supply circuit (2) to the coil (15) to generate within the receptacle (20a, 28a) an attenuating alternating magnetic field whose peak value of magnetic flux density reduces as time passes.
摘要翻译：一种磁数据擦除器，其适于完全消磁磁记录装置中的记录介质以确定地擦除磁数据，以及一种用于擦除磁数据的方法，还有一种磁数据擦除器，还适用于擦除磁记录介质上的记录磁数据，并入计算机的硬盘驱动器和擦除磁数据的方法。磁数据擦除器（1,3,5）包括：电源电路（2），用于产生峰值随时间减小的衰减交流电压，用于容纳磁记录介质的容器（20a，28a），33）和用于对磁记录介质（22a，32a，33）进行消磁的电线圈（15），并且适于将在电源电路（2）中产生的衰减的交流电压施加到线圈（15）至在插座（20a，28a）内产生衰减的交变磁场，其磁通密度的峰值随时间流逝而减小。

8. 发明公开

EP1484748A1 RECORDED DATA DELETING DEVICE FOR HARD DISK 审中-公开
标题翻译： LÖSCHEINRICHTUNGFÜRAUFGEZEICHNETE DATENFÜREINE FESTPLATTE
公开(公告)号：EP1484748A1
公开(公告)日：2004-12-08
申请号：EP02724711.3
申请日：2002-05-07
申请人： Orient Instrument Computer Co., Ltd
发明人： ITO, Tomoaki, Orient Instrument Computer Co. Ltd
IPC分类号： G11B5/024
CPC分类号： G11B5/012 , G11B5/0245 , H01F13/006
摘要： A recorded data eraser 1 defines therein a cavity 2 for insertion of a hard disk drive 20 in the cavity 2 and includes a coil 4 being arranged around the cavity 2 so as to encircle the hard disk drive 20 when the hard disk drive 20 is inserted in the cavity 2, and a DC power supply circuit 8 for producing a magnetic field in the coil 4.
摘要翻译：记录数据擦除器1在其中限定有用于将硬盘驱动器20插入空腔2中的空腔2，并且包括围绕空腔2布置的线圈4，以便当插入硬盘驱动器20时环绕硬盘驱动器20 在空腔2中，以及用于在线圈4中产生磁场的直流电源电路8

9. 发明公开

EP0265095A3 Apparatus for erasing magnetic tape 失效
标题翻译：用于擦除磁带的装置
公开(公告)号：EP0265095A3
公开(公告)日：1991-07-31
申请号：EP87308661.5
申请日：1987-09-30
申请人： Data Security, Inc.
发明人： Schultz, Robert Allen
IPC分类号： G11B5/024
CPC分类号： G11B5/0245
摘要： A bulk degausser apparatus for erasing a reel (22) of high energy magnetic tape includes a means for generating magnetic fields including a coil (L1) defining a window (34) for passage of the reel (72) of tape. The coil (L1) includes a first winding (L2) having relatively few turns and a second winding (L3), inductively coupled to the first winding (L2), and having relatively many turns. The apparatus also includes an ac power supply (82) connected to the first winding (L2) and a dc power supply (84) connected to the second winding (L3). A resonance capacitor (C1) is interconnected with the second winding (L3) for substantially balancing the inductive reactance of the second winding (L3) at the frequency of the ac power supply. The apparatus also includes an isolation relay (K3) interconnecting the capacitor (C1) and the second winding (L3) with the dc power supply, for isolating the dc power supply when the first winding (L2) is energized by the ac power supply (82). Energization of the second winding (L3) by the dc power supply (84) causes a tape (22) in the window (34) to undergo a dc magnetic field, and energization of the first winding (L2) by the ac power supply induces ac current in the second winding (L3) resulting in a reel (22) in said window (34) experiencing an ac magnetic field. A drive mechanism for translating and rotating the reel (22) of high energy magnetic tape with respect to the coil (L1), is also disclosed.
摘要翻译：用于擦除高能磁带的卷轴（22）的体积消减装置包括用于产生磁场的装置，包括限定用于磁带卷轴（72）通过的窗口（34）的线圈（L1）。线圈（L1）包括具有相对较少匝数的第一绕组（L2）和感应耦合到第一绕组（L2）并且具有相对较多匝的第二绕组（L3）。该装置还包括连接到第一绕组（L2）的交流电源（82）和连接到第二绕组（L3）的直流电源（84）。谐振电容器（C1）与第二绕组（L3）互连，用于以交流电源的频率基本平衡第二绕组（L3）的感抗。该装置还包括用直流电源将电容器（C1）和第二绕组（L3）互连的隔离继电器（K3），用于在第一绕组（L2）由交流电源供电时隔离直流电源（ 82）。通过直流电源（84）对第二绕组（L3）的通电导致窗口（34）中的带（22）经受直流磁场，并且由交流电源引起的第一绕组（L2）的激励引起在第二绕组（L3）中的交流电流导致所述窗口（34）中的卷轴（22）经历交流磁场。还公开了一种用于相对于线圈（L1）平移和旋转高能磁带的卷轴（22）的驱动机构。

10. 发明授权

EP0190695B1 Tape recording apparatus 失效
标题翻译：胶带记录装置
公开(公告)号：EP0190695B1
公开(公告)日：1990-09-26
申请号：EP86101354.8
申请日：1986-02-03
申请人： SONY CORPORATION
发明人： Okada, Hiroshi , Takahashi, Takao , Inoue, Hajime
IPC分类号： G11B5/008 , G11B20/10 , G11B5/024 , H04N5/92
CPC分类号： G11B5/0086 , G11B5/024 , G11B27/032 , G11B27/036 , G11B2220/90 , H04N5/78263

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