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1. 发明专利

JP2003030905A Optical recording medium, manufacturing method therefor, and injection mold 审中-公开
标题翻译：光学记录介质，其制造方法和注射模具
公开(公告)号：JP2003030905A
公开(公告)日：2003-01-31
申请号：JP2001213076
申请日：2001-07-13
申请人： Sony Corp , ソニー株式会社
发明人： SHIMIZU JUN , NOMURA HIROSHI , AKIMORI TOSHIHIRO
IPC分类号： B29C45/26 , B29L17/00 , G11B7/24 , G11B7/26
摘要： PROBLEM TO BE SOLVED: To provide overall print having a respectable appearance, when print ing the substrate surface of a card-type CD, and to satisfy functions required of the card-type CD. SOLUTION: A drive hole 12 for centering to a drive table is formed in the center of a substrate 11 of a card-type CD 10, with a prescribed depth x from the side of a laser light irradiated face 15. An annular digital information signal pattern 14 is provided in the substrate on the side of print face 13 in the outer periphery of the drive hole 12. Since the drive hole 12 is formed only on the laser light irradiated face 15 side, a print face opposite to the irradiated face 15 is made flat throughout. Therefore, full-surface print on the print face 13 made possible, and together with restrictions on print being removed beautiful appearance is also obtained. When the effective depth x of the drive hole 12 is within the range of 0.60 to 1.15 mm, the clamp means of a current drive device can be used as it is.
摘要翻译：要解决的问题：为了提供具有可观外观的整体打印，当打印卡式CD的基板表面并满足卡式CD所需的功能时。解决方案：在卡式CD10的基板11的中心形成有用于定心于驱动台的驱动孔12，其具有从激光照射面15侧的规定深度x。环形数字信息信号图案14设置在驱动孔12的外周中的印刷面13侧的基板中。由于驱动孔12仅形成在激光照射面15侧，所以与被照射面15相对的印刷面整个平整因此，打印面13上的全表面打印成为可能，并且还获得了除去打印的限制外观美观。当驱动孔12的有效深度x在0.60至1.15mm的范围内时，可以直接使用电流驱动装置的夹紧装置。

2. 发明专利

JPH11296923A DEVICE AND METHOD FOR EXPOSURE 失效
公开(公告)号：JPH11296923A
公开(公告)日：1999-10-29
申请号：JP9488098
申请日：1998-04-07
申请人： SONY CORP
发明人： ENDO FUSAAKI , ARIMA MITSUO , NOMURA HIROSHI
IPC分类号： G03F7/20 , G11B7/26
摘要： PROBLEM TO BE SOLVED: To provide an exposing device which suppresses the variation of laser beams of recording of optical paths that are divided into plural parts, also maintains light outputs of laser beams for recording of respective separated optical paths in their own optimum states and forms a latent image corresponding a high dense optical disk with high accuracy and to provide an exposing method. SOLUTION: This exposing device 1 consists of a beam splitter 3 which divides an optical path of laser beams emitted from a light source 2 into plural parts and plural light output controlling means 4 and 5 which separately detect a part of the laser beams of plural optical paths separated by the splitter 3 and control the light outputs of the laser beams so as to become prescribed value.

3. 发明专利

JPH1139729A PRODUCTION OF OPTICAL RECORDING MEDIUM MASTER DISK 失效
公开(公告)号：JPH1139729A
公开(公告)日：1999-02-12
申请号：JP19284597
申请日：1997-07-17
申请人： SONY CORP
发明人： TAKEMOTO HIROYUKI , NOMURA HIROSHI
IPC分类号： G11B7/00 , G11B7/0045 , G11B7/26
摘要： PROBLEM TO BE SOLVED: To make it possible to form grooves of a height different from the height of address pits with a simple method. SOLUTION: The production of optical recording medium master disks which are formed with at least the pits and grooves and vary in the depths of the pits and grooves is executed in this process. The stages to be executed without fail in this case are a photosensitive layer forming stage for forming a photosensitive layer 5 consisting of a photosensitive material on a substrate 4 and an exposure stage of forming the latent images 2a of the grooves on the photosensitive layer 5 by first light L1 and exposing the parts exclusive of at least the parts formed with the latent images 2a of the grooves with second light L2 for sensitizing the photosensitive layer 5 down to the middle thereof.

4. 发明专利

JPH10308033A EXPOSING METHOD FOR OPTICAL MASTER DISK 失效
公开(公告)号：JPH10308033A
公开(公告)日：1998-11-17
申请号：JP11707297
申请日：1997-05-07
申请人： SONY CORP
发明人： NOMURA HIROSHI
IPC分类号： G11B7/00 , G11B7/0045 , G11B7/135 , G11B7/26
摘要： PROBLEM TO BE SOLVED: To narrow a pit so as to increase a recording density by performing exposure in a manner of overlapping two exposing beams in an advancing direction and exposing an overlapping part of spots irradiated with these two exposing beams so as to form an exposing pattern. SOLUTION: A light emitted from a laser light source is modulated, then divided into two light by a beam splitter, position-adjusted by beam steering or the like and then two exposing beams partially overlapped with each other are formed in an advancing direction. That is, the width Dp of a pit is formed equal to the width of an overlapped part S between the exposed spots SP1 and SP2 of the two beams. Then, a photoresist is set so as to expose only this overlapped part and thereby the pit width Dp is formed. At this time, by increasing a space between two optical axes and reducing the ratio of the overlapped part of the exposed spots SP1 and SP2 , the pit width Dp is reduced.

5. 发明专利

JPH10154356A OPTICAL DISK 失效
公开(公告)号：JPH10154356A
公开(公告)日：1998-06-09
申请号：JP31090096
申请日：1996-11-21
申请人： SONY CORP
发明人： OTOMO KATSUHIKO , NOMURA HIROSHI , TAKEMOTO HIROYUKI
IPC分类号： G11B7/24
摘要： PROBLEM TO BE SOLVED: To provide an optical disk which is capable of dealing with further higher-density recording while adopting a group recording system. SOLUTION: This optical disk is formed with grooves 1 on a disk substrate and is formed with embossing pits 2 indicating information signals by ruggedness in at least part of these grooves 1. The depth of the grooves 1 is made deeper than the depth of the embossing pits 2. When the refractive index of the disk substrate is defined as (n) and the wavelength of the laser beam used for detection of the embossing pits 2 as λ, the depth of the grooves 1 is preferably set within a range of λ/(4n) to λ/(2n) and the depth of the embossing pits 2 within a range of λ/(8n) to (3λ)/(8n).

6. 发明专利

JPH08211348A UNIT AND METHOD FOR OPTICAL MODULATION 失效
公开(公告)号：JPH08211348A
公开(公告)日：1996-08-20
申请号：JP1946595
申请日：1995-02-07
申请人： SONY CORP
发明人： NOMURA HIROSHI
IPC分类号： G02F1/11
摘要： PURPOSE: To provide an optical modulation unit which is capable of providing light pulses small in time width t per pulse. CONSTITUTION: The optical modulation unit includes at least two optical modulators 11, 12 arranged in series. The modulation signal of each of the modulators 11, 12 is a rectangular wave signal in which a high level and a low level are alternately repeated every time interval t in a cycle of T(=2t) and the two modulation signals are mutually shifted by a phase difference of time Δt. From the optical modulation unit, light pulses having a time width per pulse t-ΔT and a period of T are obtained. By arranging N such optical modulation units in parallel, light pulses with a time width t-ΔT per pulse and a period of T/N are obtained.

7. 发明专利

JPH0773510A PRODUCTION OF DISK SUBSTRATE AND PRODUCTION OF MASTER PLATE 失效
公开(公告)号：JPH0773510A
公开(公告)日：1995-03-17
申请号：JP24042193
申请日：1993-09-01
申请人： SONY CORP
发明人： TADA KYOKO , NOMURA HIROSHI , KUDO JUNICHIRO
IPC分类号： G11B7/26
摘要： PURPOSE:To provide the process for production of the master plate having an excellent release property from the beginning of molding and the process for production of the disk substrate by using this master plate. CONSTITUTION:A protective film 4 consisting of specific org. matter is applied on a stamper 3 which is a mold for the disk substrate prior to injection molding of this substrate. This protective film is peeled after a prescribed time (10 to 50 hours), by which the stamper 3 having the good release property from the disk substrate after the molding is obtd. The protective film 4 consisting of the org. matter described above preferably contains a polymer of a low mol. wt., its plasticizing component (including a surfactant) and dyes.

8. 发明专利

JPH0721592A PRODUCTION OF OPTICAL MASTER DISK 失效
公开(公告)号：JPH0721592A
公开(公告)日：1995-01-24
申请号：JP18335593
申请日：1993-06-30
申请人： SONY CORP
发明人： NOMURA HIROSHI , YONE KIYOE , SATO MANABU , TADA KYOKO
IPC分类号： G11B7/26
摘要： PURPOSE:To provide an optical master disk on which a photoresist coating film having a uniform film thickness is formable and which has rugged patterns of precise shapes. CONSTITUTION:A chucking table which is approximately uniform in the state of contact with a glass master disk in a region where the rugged patterns are formed is used as the chucking table at the time of placing the glass master disk on the chucking table and spin coating the glass master disk with a photoresist. Such chucking table includes a table which has outer peripheral ribs 6a and inner peripheral ribs 6b outside the regions formed with the rugged patterns and is constituted to be placed with the glass master disk by these ribs 6a, 6b.

9. 发明专利

JPH06220698A DEVICE FOR REMOVING MAGNETIC FINE PARTICLE CONTAINED IN PLATING SOLUTION OF ELECTROPLATING DEVICE 失效
公开(公告)号：JPH06220698A
公开(公告)日：1994-08-09
申请号：JP17084591
申请日：1991-07-11
申请人： SONY CORP
发明人： NOMURA HIROSHI
IPC分类号： C25D21/18 , G11B7/26
摘要： PURPOSE:To attract and remove the fine magnetic material in a plating soln. and to stably form a plating surface excellent in smoothness by fixing a strong magnet to the inner surface of a plating soln transport pipe in the electroplating device. CONSTITUTION:When a large-area material is electroplated with a metal such as Ni, a fine granular Ni is deposited in a plating soln., hence fine protrusions are generated in the plating soln., and the smoothness of the plating surface of the material is deteriorated. To prevent this defect, plural columnar rod- shaped magnets 2 coated with a synthetic resin as the oxidation and corrosion inhibitor are arranged on the inner surface of a circular hollow plating soln. transport pipe 1 in its axial direction. The plating soln. is allowed to flow in the pipe 1 from the upstream side 3 toward the downstream side 4, hence the fine-particle magnetic Ni powder is attracted by the magnet 2 and removed from the soln., and an Ni plating film free of the protrusions of Ni powder and excellent in smoothness is formed on a large-area material.

10. 发明专利

JPH05147977A SURFACE TREATMENT OF GLASS SUBSTRATE 失效
公开(公告)号：JPH05147977A
公开(公告)日：1993-06-15
申请号：JP33568291
申请日：1991-11-25
申请人： SONY CORP
发明人： YONE KIYOE , NOMURA HIROSHI
IPC分类号： C03C17/30 , C03C23/00 , G11B7/26
摘要： PURPOSE:To prevent the deterioration in properties of a coupling agent film formed in order to enhance the adhesion of a photoresist layer to a glass substrate at the time of forming a glass master disk for an optical disk. CONSTITUTION:An aq. coupling agent soln. is applied on a glass substrate in a stage S2 after foreign matter, such as particulate, is removed by prewashing the glass substrate in a stage S1. The excess coupling agent is removed by executing the post washing of the glass substrate in a stage S3. The glass substrate is pulled up from the liquid held at a low temp. and is dried in a stage S4. Since the drying is executed at the low temp., the deterioration in the properties of the coupling agent film is prevented. The coupling agent film is subjected to a baking treatment in a stage S5 and a photoresist layer is formed thereon in a stage S6. Since there is no deterioration in the properties of the coupling agent film, the photoresist film securely and tightly adheres to the coupling agent film. Finally, the photoresist layer is subjected to exposing and development processing in a stage S7, by which the glass master disk for the optical disk is formed.

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