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1. 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

2. 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

3. 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.

4. 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.

5. 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.

6. 发明专利

JPH06111369A INFORMAITON RECORDING MEMBER AND RECORDING AND RECORDING METHOD 失效
公开(公告)号：JPH06111369A
公开(公告)日：1994-04-22
申请号：JP19215593
申请日：1993-08-03
申请人： HITACHI LTD , HITACHI MAXELL
发明人： MIYAUCHI YASUSHI , TERAO MOTOYASU , OKAMINE SHIGENORI , MURASE CHIKAO , ARIMOTO AKIRA
IPC分类号： B41M5/00 , G11B7/00 , G11B7/004 , G11B7/0055 , G11B7/24 , G11B7/244 , G11B11/10 , G11B11/105
摘要： PURPOSE:To increase the number of times of rewriting which can be attained in an optical disk for high density recording with a mask layer. CONSTITUTION:In the structure of a disk, a dye-contg. mask layer 5 is held between inorg. substance layers 4, 6 and a light reflecting layer having high heat conductivity is formed as the layer 6. The diameter of an apparently effective beam spot is reduced by reducing the size of a region in which the dye is absorbed or satd. High density recording and reproduction can stably be carried out and the number of times of rewriting which can be attained in the resulting optical disk is increased.

7. 发明专利

JPH0567356A OPTICAL RECORDING/REPRODUCING MEDIUM AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH0567356A
公开(公告)日：1993-03-19
申请号：JP22782291
申请日：1991-09-09
申请人： HITACHI LTD , HITACHI MAXELL
发明人： MIYAMOTO MAKOTO , MIYAUCHI YASUSHI , TERAO MOTOYASU
IPC分类号： G11B11/10 , G11B7/26 , G11B11/105
摘要： PURPOSE:To manufacture an inexpensive optical recording/reproducing medium at a high speed and in large quantities by decreasing the number of processes for manufacturing the optical recording/reproducing medium. CONSTITUTION:Between an information recording base body 16 consisting of a substrate, and an information recording layer 10 provided on its substrate, and a light source 18 for recording information in the information recording layer 10, an optical mask 17 having the part whose transmission factor is high and the part whose transmission factor is low in accordance with information to be recorded is placed, and by using a beam 19 radiated from the light source 18, the information is recorded in the information recording base body 16. The number of processes for manufacturing an optical recording/reproducing medium can be decreased remarkably. Accordingly, an inexpensive optical recording/ reproducing medium can be manufactured at a high speed and in large quantities.

8. 发明专利

JPH0558048A DATA RECORDING AND REGENERATING METHOD 失效
公开(公告)号：JPH0558048A
公开(公告)日：1993-03-09
申请号：JP22143391
申请日：1991-09-02
申请人： HITACHI LTD , HITACHI MAXELL
发明人： MIYAUCHI YASUSHI , TERAO MOTOYASU , OTA NORIO , OKAMINE SHIGENORI , NISHIDA TETSUYA
IPC分类号： B41M5/26 , G11B7/00 , G11B7/0055 , G11B7/24 , G11B7/243 , G11B7/30
摘要： PURPOSE:To provide a recording membrane having recording/regenerating characteristics even in a short wavelength region and good stability in a rewritable phase change optical disk. CONSTITUTION:In a disk having a structure laminated in the order of substrate/ protective layer/Se type recording film/intermediate layer/reflecting layer, Be content is set to 35-80%. As shown by a drawing, since the refractive index and refractive index change of a film can be increased in the wavelength region of 200-700nm, high density recording becomes possible.

9. 发明专利

JPH04187490A INFORMATION RECORDING MEDIUM AND RECORDING/ REGENERATING METHOD FOR INFORMATION 失效
公开(公告)号：JPH04187490A
公开(公告)日：1992-07-06
申请号：JP31419290
申请日：1990-11-21
申请人： HITACHI MAXELL , HITACHI LTD
发明人： TAMURA NORIHITO , OTA NORIO , TERAO MOTOYASU , ANDO KEIKICHI , MIYAUCHI YASUSHI
IPC分类号： B41M5/26 , G03C1/705 , G11B7/24 , G11B7/243
摘要： PURPOSE:To enhance a recording/regeneration characteristic sensitivity and improve stability by a method wherein in an information recording medium formed by holding a thin film containing at least a recording layer on a signal surface of a substrate, a recording material mainly composed of Sb, Te, and at least either Si or Al is used for the recording layer. CONSTITUTION:This optical information recording medium is produced by laminating a recording layer 3 and a protective layer 4 on a signal surface 2 of a substrate 1 in the order from the substrate 1. At this time, the recording layer 3 is made of a recording material mainly composed of Sb, Te, and at least either Si or Al. In this manner, the information recording medium can have good recording/regeneration characteristics and superior stability in information storage.

10. 发明专利

JPH04186537A MEMBER FOR INFORMATION RECORDING 失效
公开(公告)号：JPH04186537A
公开(公告)日：1992-07-03
申请号：JP31394590
申请日：1990-11-21
申请人： HITACHI LTD , HITACHI MAXELL
发明人： ANDO KEIKICHI , TERAO MOTOYASU , MIYAUCHI YASUSHI , OKAMINE SHIGENORI
IPC分类号： G11B7/24
摘要： PURPOSE:To prevent a crack from being produced and a recording film from flowing by a method wherein a protective layer which is composed of at least one out of an inorganic substance and an organic substance whose density is at a specific ratio in a bulk state is formed so as to be adjacent to a thin film for information recording. CONSTITUTION:At a recording medium, a thin film 3, for information recording use, which is changed by being irradiated with a beam for recording use is formed on a substrate 1. At the medium, a protective layer 2 which is composed of at least one out of an inorganic substance and an organic substance whose density is at a density of 60 to 90% in a bulk state is formed. It is preferable that an oxide, a selenide, a sulfide or a nitride whose thermal conductivity is at 10 to 30w/m/K and whose film thickness is at 50 to 500nm is used as a main component for the protective layer 2. Especially, a material which contains 5 to 30mol% of Ta2O5 and whose residual part is composed of ZnS or ZnSe is preferable. Thanks to the protective layer 2, the recording medium is resistant to a tensile external force and heat generated at the recording film 3 by being irradiated with the beam is diffused.

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