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1. 发明申请

WO9914764A8 OPTICAL RECORDING MEDIUM AND OPTICAL MEMORY DEVICE 审中-公开
标题翻译：光学记录介质和光学存储器件
公开(公告)号：WO9914764A8
公开(公告)日：1999-05-06
申请号：PCT/JP9804102
申请日：1998-09-11
申请人： HITACHI LTD , HITACHI MAXELL , MORITANI KOUICHI , HIROTSUNE AKEMI , TERAO MOTOYASU , MIYAUCHI YASUSHI , SHINTANI TOSHIMICHI , NAITO TAKASHI , NAMEKAWA TAKASHI , YAMAMOTO HIROKI
发明人： MORITANI KOUICHI , HIROTSUNE AKEMI , TERAO MOTOYASU , MIYAUCHI YASUSHI , SHINTANI TOSHIMICHI , NAITOU TAKASHI , NAMEKAWA TAKASHI , YAMAMOTO HIROKI
IPC分类号： G11B7/005 , G11B7/24 , G11B7/243 , G11B7/257
CPC分类号： B82Y10/00 , G11B7/005 , G11B7/24 , G11B7/243 , G11B7/257
摘要： An optical recording medium comprising a mask layer of which the refractive index of a part in a light spot formed by a laser beam 2 - 4 mW is changed and protective layers sandwiching the mask layer, wherein the difference between the intensity of reflected light in a crystalline state and the intensity of reflected light in an amorphous state is small in the region where the refractive index has changed and the reproduced signal is difficult to view in a region other than the region where the refractive index has changed. By reducing the size of the part where the reproduction signal is viewed, high density recorded information can be read.
摘要翻译：一种光记录媒体，其特征在于，具有通过激光束2-4mW形成的光点中的一部分的折射率改变的掩模层和夹着该掩模层的保护层，其中，反射光的强度在折射率已经变化的区域中，非折射状态的反射光的强度较小，在折射率变化的区域以外的区域难以观察再生信号。通过减小观看再现信号的部分的尺寸，可以读取高密度记录信息。

2. 发明授权

US6436504B2 Information recording medium 有权
标题翻译：信息记录介质
公开(公告)号：US6436504B2
公开(公告)日：2002-08-20
申请号：US83213701
申请日：2001-04-11
申请人： HITACHI LTD , HITACHI MAXELL
发明人： MIYAMOTO MAKOTO , HIROTSUNE AKEMI , ANDOO KEIKICHI , NISHIDA TETSUYA , TERAO MOTOYASU , USHIYAMA JUNKO , ANZAI YUMIKO
IPC分类号： G11B7/24 , G11B7/243 , G11B7/253 , G11B7/2531 , G11B7/2533 , G11B7/2534 , G11B7/257 , G11B7/2578 , G11B7/258 , G11B7/2585 , G11B7/259 , G11B7/2595 , B32B3/02
CPC分类号： G11B7/252 , G11B7/24 , G11B7/2531 , G11B7/2533 , G11B7/2534 , G11B7/256 , G11B7/2578 , G11B7/2585 , G11B7/259 , G11B7/2595 , G11B2007/24304 , G11B2007/24306 , G11B2007/24308 , G11B2007/2431 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , G11B2007/25706 , G11B2007/25708 , G11B2007/2571 , G11B2007/25711 , G11B2007/25713 , G11B2007/25715 , Y10S428/913 , Y10S430/146 , Y10T428/21 , Y10T428/31678
摘要： An information recording medium having a substrate, a lower superficial layer formed on the substrate and having a thickness of not more than 25 nm, and a recording layer formed on the lower superficial layer. Information is recorded on the recording layer in accordance with a change of atomic arrangement caused by irradiation of light. The information recording medium includes and an absorption control layer formed on the recording layer.
摘要翻译：一种信息记录介质，具有基板，形成在基板上的厚度不大于25nm的下表面层和形成在下表面层上的记录层。根据由照射引起的原子排列的变化，将信息记录在记录层上。信息记录介质包括形成在记录层上的吸收控制层。

3. 发明专利

DE69814773T2 未知
公开(公告)号：DE69814773T2
公开(公告)日：2004-03-18
申请号：DE69814773
申请日：1998-09-04
申请人： HITACHI LTD
发明人： MIYAMOTO MAKOTO , TODA TSUYOSHI , OHTAKE MASATOSHI , TERAO MOTOYASU , USHIYAMA JUNKO , ANDOO KEIKICHI , ANZAI YUMIKO , HIROTSUNE AKEMI , NISHIDA TETSUYA , SAGA HIDEKI
IPC分类号： G11B7/00 , G11B5/09 , G11B7/004 , G11B7/0045 , G11B7/0055 , G11B7/006 , G11B7/125 , G11B7/126 , G11B20/10 , G11B20/14
摘要： A method of recording information in a recording medium capable of being set in a first state with an energy beam at a first power level and in a second state with an energy beam at a second power level higher than said first power level, the method comprising: after irradiation of said recording medium with an energy beam at said first power level, irradiating said recording medium with an energy beam pulse at said second power level, wherein a duration of said irradiation with said energy beam at said first power level is changed in accordance with a relative speed between said energy beam and said recording medium.

4. 发明专利

DE602008003269D1 Wiedergabesignalmessverfahren, Signalwiedergabevorrichtung 未知
公开(公告)号：DE602008003269D1
公开(公告)日：2010-12-16
申请号：DE602008003269
申请日：2008-08-07
申请人： HITACHI LTD
发明人： HIROTSUNE AKEMI , USHIYAMA JUNKO , MINEMURA HIROYUKI , KUROKAWA TAKAHIRO , MIYAMOTO HARUKAZU
IPC分类号： G11B7/005 , G11B20/14

5. 发明专利

DE4421221A1 Information-recording thin film and information recording medium and also a process for their production 未知
公开(公告)号：DE4421221A1
公开(公告)日：1994-12-22
申请号：DE4421221
申请日：1994-06-17
申请人： HITACHI LTD
发明人： HIROTSUNE AKEMI , TERAO MOTOYASU , MIYAUCHI YASUSHI
IPC分类号： G11B7/24065 , G11B7/243 , G11B7/257 , G11B7/258 , G11B7/26 , G11B11/105 , G11B7/24
摘要： A recording film (3) of the phase-change type of an Sb-Te-Ge system or of an Sb-Te-In system includes at least one of the following elements: lanthanoide elements, Ag, Ba, Co, Cr, Ni, Pt, Si, Sr, Au, Cd, Cu, Li, Mo, Mn, Zn, Al, Fe, Pb, Na, Cs, Ga, Pd, Bi, Sn, Ti and V. A component (3b) having a high melting point is formed as a deposit in the recording film (3) and exists alongside a phase-change component (3a), thereby preventing the recording film from flowing and/or segregating during recording and erasing. The recording film may also serve as a thin film for high-resolution reading out, in that it masks an optical disk on which the recording is created by cleavage, an optical disk of the phase-change type or a magnetooptical disk, whereby the number of possible read-out operations with high resolution can be increased to a high degree.

6. 发明专利

AT487217T 未知
公开(公告)号：AT487217T
公开(公告)日：2010-11-15
申请号：AT08014160
申请日：2008-08-07
申请人： HITACHI LTD
发明人： HIROTSUNE AKEMI , USHIYAMA JUNKO , MINEMURA HIROYUKI , KUROKAWA TAKAHIRO , MIYAMOTO HARUKAZU
IPC分类号： G11B7/005 , G11B20/14
摘要： Regarding a signal recorded with a first frequency in a recording area on a specific first recording layer (1203) and a signal recorded with a second frequency different from the first frequency in a recording area on a second recording layer (1204) which might cause interlayer crosstalk in relation to the first recording layer (1203), a reproducing signal measurement method for a multilayer optical recording medium having at least three recording layers (101,102,103,104,105,106) includes reproducing the signal recorded in the recording area on the first recording layer (S1103), separating signals recorded respectively with the first and second frequencies (S1104), discriminating signal amplitude of the first frequency and a maximum value in signal amplitude of the second frequency (S1105), and calculating a signal amplitude ratio between them to measure interlayer crosstalk contained in the signal reproduced from the recording area on the first recording layer (S1106). Thus, the interlayer crosstalk quantity caused by unnecessary light can be measured quantitatively.

7. 发明专利

DE602007003637D1 未知
公开(公告)号：DE602007003637D1
公开(公告)日：2010-01-21
申请号：DE602007003637
申请日：2007-04-04
申请人： HITACHI LTD
发明人： ANZAI YUMIKO , HIROTSUNE AKEMI , MUKOH MASAKI , HORII YOUICHI , SUKEDA HIROKO , OTSUKA RIEKO , HOSHINO TAKESHI
IPC分类号： G11B33/04 , G11B23/40
摘要： An information recording medium capable of displaying multiple labels and a storing case for the information recording medium are provided. The multiple labels are displayed by changing the labels to be displayed while selectively selecting information layers in a multi information recording medium. The medium has a function to receive either voltage or current, and the information layers selectively receive either voltage or current for changing the labels.

8. 发明专利

DE69814773D1 未知
公开(公告)号：DE69814773D1
公开(公告)日：2003-06-26
申请号：DE69814773
申请日：1998-09-04
申请人： HITACHI LTD
发明人： MIYAMOTO MAKOTO , TODA TSUYOSHI , OHTAKE MASATOSHI , TERAO MOTOYASU , USHIYAMA JUNKO , ANDOO KEIKICHI , ANZAI YUMIKO , HIROTSUNE AKEMI , NISHIDA TETSUYA , SAGA HIDEKI
IPC分类号： G11B7/00 , G11B5/09 , G11B7/004 , G11B7/0045 , G11B7/0055 , G11B7/006 , G11B7/125 , G11B7/126 , G11B20/10 , G11B20/14
摘要： A method of recording information in a recording medium capable of being set in a first state with an energy beam at a first power level and in a second state with an energy beam at a second power level higher than said first power level, the method comprising: after irradiation of said recording medium with an energy beam at said first power level, irradiating said recording medium with an energy beam pulse at said second power level, wherein a duration of said irradiation with said energy beam at said first power level is changed in accordance with a relative speed between said energy beam and said recording medium.

9. 发明专利

DE602009000394D1 Mehrschichtiges optisches Aufzeichnungsmedium 未知
公开(公告)号：DE602009000394D1
公开(公告)日：2011-01-13
申请号：DE602009000394
申请日：2009-04-08
申请人： HITACHI LTD
发明人： HIROTSUNE AKEMI , KIMURA SHIGEHARU , KUROKAWA TAKAHIRO
IPC分类号： G11B7/24 , G11B7/007

10. 发明专利

AT490537T 未知
公开(公告)号：AT490537T
公开(公告)日：2010-12-15
申请号：AT09005176
申请日：2009-04-08
申请人： HITACHI LTD
发明人： HIROTSUNE AKEMI , KIMURA SHIGEHARU , KUROKAWA TAKAHIRO
IPC分类号： G11B7/24 , G11B7/007
摘要： In a multilayer optical recording medium having at least three recording layers, an influence of interlayer crosstalk due to an unnecessary light is removed. Each of the recording layers includes an information recording area, and the recording layers other than the nearest recording layer and the farthest recording layer when viewed from a light incident side include a first annular area having uneven patterns formed thereon, and a second annular area having uneven patterns formed thereon, the first annular area being adjacent to an inner side of the information recording area, the second annular area being adjacent to an outer side of the information recording area.

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