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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. 发明专利

DE4115321A1 Information recording layer 未知
公开(公告)号：DE4115321A1
公开(公告)日：1991-11-28
申请号：DE4115321
申请日：1991-05-10
申请人： HITACHI MAXELL , HITACHI LTD
发明人： TERAO MOTOYASU , ANDOO KEIKICHI , MIYAUCHI YASUSHI , OKAMINE SHIGENORI , TAMURA REIJI , TAKAHASHI MASAHIKO , FUTAMOTO MASAAKI
IPC分类号： G11B7/243 , G11B7/253 , G11B7/257 , G11B7/2578 , G11B7/26
摘要： An information recording layer, esp. for rewritable information carriers, which undergoes a property change on incidence of a recording beam of sufficient energy, has irregularities (pref. periodic peaks and valleys) at one or both sides to suppress flow, caused by the property change, and/or to reduce thermal conductivity. Also claimed are (i) an information recording material having one or more recording layers as described above; and (ii) processes for prodn. of the above recording layer or recording material.

3. 发明专利

DE68925331D1 未知
公开(公告)号：DE68925331D1
公开(公告)日：1996-02-15
申请号：DE68925331
申请日：1989-10-05
申请人： HITACHI LTD , HITACHI MAXELL
发明人： TAMURA REIJI SHIHORYO , TERAO MOTOYASU , MIYAUCHI YASUSHI , ANDOO KEIKICHI , NISHIDA TETSUYA
IPC分类号： G11B7/0055 , G11B7/243 , G11B7/253 , G11B7/2531 , G11B7/257 , G11B7/258 , G11B7/2595 , G11B7/00 , G11B7/24

4. 发明专利

DE68925331T2 未知
公开(公告)号：DE68925331T2
公开(公告)日：1996-06-13
申请号：DE68925331
申请日：1989-10-05
申请人： HITACHI LTD , HITACHI MAXELL
发明人： TAMURA REIJI SHIHORYO , TERAO MOTOYASU , MIYAUCHI YASUSHI , ANDOO KEIKICHI , NISHIDA TETSUYA
IPC分类号： G11B7/0055 , G11B7/243 , G11B7/253 , G11B7/2531 , G11B7/257 , G11B7/258 , G11B7/2595 , G11B7/00 , G11B7/24

5. 发明专利

DE4115321C2 未知
公开(公告)号：DE4115321C2
公开(公告)日：1995-06-01
申请号：DE4115321
申请日：1991-05-10
申请人： HITACHI LTD , HITACHI MAXELL
发明人： TERAO MOTOYASU , ANDOO KEIKICHI , MIYAUCHI YASUSHI , OKAMINE SHIGENORI , TAMURA REIJI , TAKAHASHI MASAHIKO , FUTAMOTO MASAAKI
IPC分类号： G11B7/243 , G11B7/253 , G11B7/257 , G11B7/2578 , G11B7/26 , G11B7/24

6. 发明专利

JP2005004864A Irradiation control method of optical beam, and information recording and reproducing device 审中-公开
标题翻译：光束辐射控制方法，信息记录和再现装置
公开(公告)号：JP2005004864A
公开(公告)日：2005-01-06
申请号：JP2003166239
申请日：2003-06-11
申请人： Hitachi Ltd , Hitachi Maxell Ltd , 日立マクセル株式会社 , 株式会社日立製作所
发明人： MIYAUCHI YASUSHI , TERAO MOTOYASU
IPC分类号： G11B7/004 , G11B7/085
摘要： PROBLEM TO BE SOLVED: To provide an irradiation control method of a light beam for improving reliability of information and improving reproduction light resistance and to provide a recording and reproducing device using the irradiation control method.
SOLUTION: When a relaxation time T of the prescribed track until influence of heat by irradiation of the laser beam is disappeared after irradiating the prescribed track on an information recording disk with a laser beam, is obtained, and an integer N satisfying T/T'≤N is obtained from the relaxation time T of the prescribed track and a time T' required for one round of the prescribed track, and the same prescribed track is irradiated with the light beam, the light beam is emitted at irradiation interval of NT'.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供光束的照射控制方法，以提高信息的可靠性并提高再现光阻，并提供使用照射控制方法的记录和再现装置。解决方案：当获得通过激光束在信息记录盘上照射规定轨迹之后直到受激光束照射的热影响的规定轨迹的松弛时间T消失时，得到满足T的整数N /T'≤N是从规定轨迹的弛豫时间T和规定轨道一圈所需的时间T'得到的，并且用光束照射相同的规定轨迹，以照射间隔发射光束的NT'。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2003187454A INFORMATION RECORDING MATERIAL AND RECORDING REPRODUCING DEVICE 审中-公开
公开(公告)号：JP2003187454A
公开(公告)日：2003-07-04
申请号：JP2003010910
申请日：2003-01-20
申请人： HITACHI LTD , HITACHI MAXELL
发明人： MIYAUCHI YASUSHI , TERAO MOTOYASU , OSHIMA MASAHIRO , HIROTSUNE AKEMI
IPC分类号： G11B7/007
摘要： PROBLEM TO BE SOLVED: To provide an information recording material and a recording/ reproducing device, in which a record can be recorded and read out with stability and a short period of time in the information recording material which enables both a land part and a groove part to be made record tracks for recording information. SOLUTION: Since a land part and a groove part are alternately generated in coming full circle, if tracing is made forward along the record track, a printed circuit board with the number of switching points A, where the land part and the groove part are switched, the number of which exist is equal to the number represented by the following formula: 2 m-1 (m: 1, 2, 3 and so on). Since the land part and the groove part are alternately generated, in coming full circle along the record track, track jump will not occur between adjacent the land part and the groove part, continuous recording and continuous reproducing on both the land part and the groove part, and reduction in recording time and reduction in access time can be made. COPYRIGHT: (C)2003,JPO

8. 发明专利

JPH09198836A INFORMATION RECORDING AND REPRODUCING DEVICE, CARTRIDGE USED FOR IT AND INFORMATION RECORDING AND REPRODUCING SYSTEM 失效
公开(公告)号：JPH09198836A
公开(公告)日：1997-07-31
申请号：JP30527096
申请日：1996-11-15
申请人： HITACHI LTD , HITACHI MAXELL
发明人： MIYAUCHI YASUSHI , TERAO MOTOYASU , KIMURA HIROYUKI
IPC分类号： G11B23/03 , G11B7/24
摘要： PROBLEM TO BE SOLVED: To provide an information recording and reproducing device which can prevent an information recording medium from being extracted by mistake from a cartridge storing the information recording medium capable of recording information by applying an energy beam thereto. SOLUTION: A cartridge comprises a main body 1, a lid 2 capable of being separated from the main body 1 or opened and closed and an information recording medium 5 capable of recording and reproducing information by applying an energy beam thereto, and a pin 4 for fixing the main body 1 and the lid 2 of the cartridge in the state of being closed is provided. After the cartridge is set to the information recording and reproducing device and optional operation is performed and, when the extraction of the information recording medium 5 is required, the pin 4 is released to make the lid 2 separable from the main body 1 or openable and after that, the cartridge is ejected from the information recording and reproducing device.

9. 发明专利

JPH09185846A INFORMATION RECORDING MEDIUM AND INFORMATION MEMORY DEVICE 失效
公开(公告)号：JPH09185846A
公开(公告)日：1997-07-15
申请号：JP49496
申请日：1996-01-08
申请人： HITACHI LTD , HITACHI MAXELL
发明人： HIROTSUNE AKEMI , TERAO MOTOYASU , MIYAUCHI YASUSHI
IPC分类号： C23C14/06 , G11B7/24 , G11B7/241
摘要： PROBLEM TO BE SOLVED: To make it possible to prevent the degradation in C/N even when many times of rewriting and super-high resolution reproducing are executed by providing the surfaces of substrates with thin films for information recording as mask layers and providing the surfaces thereof with protective layers and reflection layers and providing the boundary between these reflection layers with diffusion preventive layers. SOLUTION: The protective layer 2 is formed on the polycarbonate substrate 1 and the recording film 3 is formed on the protective layer 2. Next, an intermediate layer 4 is formed on the recording film and, thereafter, the first reflection layer 5, the diffusion preventive layer 6 and the second reflection layer 7 are formed thereon, by which a first disk member is obtd. Next, a substrate 1' consisting of the material similar to the material of the substrate 1 of the first disk member is stuck via an adhesive layer 8 thereto to obtain the disk-shaped information recording medium. According to such constitution, the layer materials are diffused or are brought into reaction between the first reflection layer and the second reflection layer and a change is induced in thermal conductivity and optical constant, by which the degradation in C/N is prevented.

10. 发明专利

JPH08329525A INFORMATION RECORDING MEDIUM AND INFORMATION MEMORY DEVICE 失效
公开(公告)号：JPH08329525A
公开(公告)日：1996-12-13
申请号：JP6971296
申请日：1996-03-26
申请人： HITACHI LTD , HITACHI MAXELL
发明人： HIROTSUNE AKEMI , TERAO MOTOYASU , MIYAUCHI YASUSHI
IPC分类号： G11B7/243 , G11B7/00 , G11B7/24 , G11B7/258 , G11B7/30
摘要： PURPOSE: To enable many times of rewriting or reading with super-high resolution by forming an information recording thin film, protective layer and two or more reflecting layers on a substrate. CONSTITUTION: A protective layer 2 comprised of a ZnS-SiO2 film is formed on a polycarbonate substrate 1. Then a Cr-Ge-Sb-Te recording film 3 is formed on the layer 2. A ZnS-SiO2 intermediate layer 4 is formed on the film 3. Then a first reflecting layer 5 of a Si film is formed and a second reflecting layer 6 of Al-Ti film is formed. Thus, a first disk member is produced. A second disk member having the same structure as that of the first disk member is formed by the same method. The first and second disk members are laminated with the reflecting layers 6, 6' facing each other to obtain a disk type information recording medium.

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