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21. 发明专利

JP2001067740A PRODUCTION AND PRODUCTION APPARATUS OF TWO LAYER TYPE OPTICAL DISK 失效
公开(公告)号：JP2001067740A
公开(公告)日：2001-03-16
申请号：JP24388099
申请日：1999-08-30
申请人： SONY DISC TECHNOLOGY INC
发明人： FURUYAMA KAZUO
IPC分类号： G11B7/26
摘要： PROBLEM TO BE SOLVED: To produce a two layer type optical disk with high accuracy by subjecting a pair of optical disks to deforming the treatment and bonding the same with a UV curing type adhesive which is subjected to viscosity management. SOLUTION: This apparatus has a heating tank 21 which removes the air bubbles intruding into the supplied UV curing type adhesive 4 by holding the UV curing type adhesive for a prescribed time in the state of heating the adhesive to a prescribed temperature, temperature control tanks 22 and 23 by which temperature conditions are controlled in accordance with the viscosity/ temperature conditions at the time of use of the UV curing type adhesive 4 supplied from this heating tank 21 and a controller 24 which controls a heating means 31 of the heating tank 21 and heating and cooling means 33 and 35 of the temperature control tanks 22 and 23. After the air bubbles are removed from the UV curing type adhesive 4 in the heating tank 21, the UV curing type adhesive is supplied to the temperature control tanks 22 and 23 and is supplied to a coating mechanism in the state of maintaining the adhesive at the prescribed viscosity and is applied to the optical disks.

22. 发明专利

JP2001056967A APPARATUS AND METHOD FOR PRODUCING OPTICAL DISK 失效
公开(公告)号：JP2001056967A
公开(公告)日：2001-02-27
申请号：JP22780599
申请日：1999-08-11
申请人： SONY DISC TECHNOLOGY INC
发明人： AOKAGE SHIGENORI , SUGIMOTO HIROYUKI , UENO TETSUYA
IPC分类号： G11B7/26 , C09J5/00
摘要： PROBLEM TO BE SOLVED: To produce an optical disk with an adhesive layer free from the inclusion of bubbles and uniform in thickness. SOLUTION: A pressure sensor 3 measures pressure applied to the inside of an adhesive tank 4 and outputs the measured result as a signal to CPU 13. A weight sensor 6 measures the weight of an adhesive supplied from the adhesive tank 4 and outputs the measured weight as an electric signal to the CPU 13. The CPU 13 calculates the viscosity of the adhesive from the applied pressure data and the weight data. The dropping position of a 1st substrate is determined from the calculated viscosity, the number of revolutions of a table 15 is determined and the number of revolutions of a table 19 is further determined.

23. 发明专利

JP2001047517A DISK LAMINATING APPARATUS AND METHOD 失效
公开(公告)号：JP2001047517A
公开(公告)日：2001-02-20
申请号：JP22865199
申请日：1999-08-12
申请人： SONY DISC TECHNOLOGY INC
发明人： FUKUCHI YOSHIJI , YOSHIMURA YOSHINORI
IPC分类号： B05D1/40 , B05C11/08 , B29C65/52 , G11B7/26
摘要： PROBLEM TO BE SOLVED: To obtain a disk laminating apparatus shortening the time required in the lamination of disks, hard to generate warpage in the obtained two-layered disk, not generating fear such that an adhesive penetrates in the gap between the center hole and center pin of the two-layered disk and capable of obtaining the two-layered disk of high quality. SOLUTION: A rotatable table TB for supporting a plurality of disks D1, D2 with center holes to be laminated by using an adhesive AD and the center pin CP vertically implanted in the table TB at the center of rotation thereof and capable of piercing the center holes of the disks D1, D2 are provided and a plurality of air channel grooves AP almost parallel to the center axis of the center pin CP are formed to the outer periphery of the center pin CP and the air circuit AC communicating with a plurality of the air channel grooves AP are formed to the table TB and air is supplied to a plurality of the air channel grooves AP through the air circuit AC.

24. 发明专利

JP2001035019A PRODUCTION OF LAMINATED DISK AND APPARATUS THEREFOR 失效
公开(公告)号：JP2001035019A
公开(公告)日：2001-02-09
申请号：JP20070899
申请日：1999-07-14
申请人： SONY DISC TECHNOLOGY INC
发明人： UENO TETSUYA
IPC分类号： G11B7/26 , B29C65/00 , B29C65/48
摘要： PROBLEM TO BE SOLVED: To enhance yield by irradiating a laminated disk with UV from both sides and disproportionately and variably controlling the outputs of UV radiated on both the sides in such a way that the warpage of the laminated disk in the radial direction is adjusted in a prescribed range. SOLUTION: Two single-sided optical disks are put in a disk laminator to produce a laminated disk 1 with an uncured UV-curing adhesive held between the two disks and the laminated disk 1 is supported by a disk supporting structure. This 1st laminated disk 1 is irradiated with UV under initial set conditions to cure the UV-curing resin 4 and to stick the two single-sided optical disks to each other. The amount of warpage is measured with an in-line warpage inspecting machine, the inspected data are processed and the intensities of radiations of upper and lower UV radiators 6U and 6D are adjusted and controlled. Subsequent laminated disks 1 are then stuck while carrying out feedback control in accordance with the correlation between the amount of warpage and the intensity of radiation of UV.

25. 发明专利

JPH10302372A MODULATION SIGNAL GENERATING DEVICE FOR MAKING ORIGINAL OPTICAL DISK AND MODULATION SIGNAL GENERATING METHOD FOR MAKING ORIGINAL OPTICAL DISK 失效
公开(公告)号：JPH10302372A
公开(公告)日：1998-11-13
申请号：JP11111697
申请日：1997-04-28
申请人： SONY DISC TECHNOLOGY INC
发明人： AIDA KIRI
IPC分类号： G11B7/00 , G11B7/0045 , G11B7/26 , G11B19/02
摘要： PROBLEM TO BE SOLVED: To provide a modulation signal generating device for making an original optical disk which can generate a modulation signal by using only one master optical disk when a modulation signal required for making an original optical disk is generated. SOLUTION: This device is provided with an information reproducing means 31 reproducing a modulation signal including main data MD and sub-code R-W generation information 60 from a whole information region of an optical disk 27 of one master in which a modulation signal including main data and K sub-code R-W generation information 60 is recorded, a read-out means 22 taking out a sub-code R-W generation information 60 from a modulation signal including reproduced main data and sub-code R-W generation information 60 by an information reproducing means 21, and an operation means 24 generating sub-code R-W information 80 based on read out sub-code R-W generation information 60.

26. 发明专利

JPH10188352A INFORMATION RECORDING MEDIUM 失效
公开(公告)号：JPH10188352A
公开(公告)日：1998-07-21
申请号：JP34834196
申请日：1996-12-26
申请人： SONY DISC TECHNOLOGY INC
发明人： MIYAKE RYOHEI , IWASAKI MASAAKI
IPC分类号： C01B33/12 , C01F7/42 , C23C14/14 , G11B7/24
摘要： PROBLEM TO BE SOLVED: To improve the adhesion property of a translucent film and a transparent substrate and to obtain an information recording medium which has multiple layers of recording layers and a translucent film and has excellent environment resistance by forming the translucent film having an element film of a simple substance and dispersing a compd. of superfine particles into the simple substance element film. SOLUTION: The first recording layer 4 having rugged pits 3 of recording data is formed atop the transparent substrate 2 by a stamper. The transparent substrate 2 is introduced into the chamber of a sputtering apparatus. Sputtering of a silicon target and sputtering of an aluminum target are alternately executed to disperse the superfine particles of aluminum oxide or silicon oxide, etc., of 1 to 20nm in diameter into the silicon film or the simple substance element film of aluminum, etc. A space layer 6 is formed on such translucent film 5 and a single plate formed with an aluminum reflection film is stuck onto the transparent substrate 2 formed with the recording layer in such a manner that the first and second recording layers 4, 8 face each other, by which the optical disk is obtd.

27. 发明专利

JPH10188349A INFORMATION RECORDING MEDIUM 失效
公开(公告)号：JPH10188349A
公开(公告)日：1998-07-21
申请号：JP34834096
申请日：1996-12-26
申请人： SONY DISC TECHNOLOGY INC
发明人： MIYAKE RYOHEI , IWASAKI MASAAKI
IPC分类号： G11B7/24
摘要： PROBLEM TO BE SOLVED: To produce a recording medium having an optical translucent film excellent in environmental resistance and low in variation with time by forming an inner film having a film composition deviated from a stoichiometric composition between two outer layers having the film compositor near to the stoichiometric composition in an information recording medium having multilayered recording layers and having the optical translucent film. SOLUTION: A thin film of a compd. whose central element is chemically stable and has low refractive index is formed on the first recording layer as the outer layer 5a, and a central element film having high refractive index is formed on the outer layer 5a as the inner layer 5b. Moreover, the thin film of the compd. similar to the outer layer 5a is formed on the inner layer 5b as the outer layer 5a. Silicon and silicon in a state deviated from the stoichiometric composition are exemplified as the compd. of the central element consisting the inner layer 5b. And an oxide and nitride of the silicon having the stoichiometric composition is used as the compd. constituting the outer layers 5a and 5c.

28. 发明专利

JPH10188348A INFORMATION RECORDING MEDIUM 失效
公开(公告)号：JPH10188348A
公开(公告)日：1998-07-21
申请号：JP34833896
申请日：1996-12-26
申请人： SONY DISC TECHNOLOGY INC
发明人： MIYAKE RYOHEI , IWASAKI MASAAKI
IPC分类号： G11B7/24
摘要： PROBLEM TO BE SOLVED: To obtain an information recording medium having multilayered recording layers which obviate the peeling of a space layer from a translucent film even under a high-temp. and high-humidity environment by forming the translucent film of a silicon compd. and forming a metallic film as an extremely thin layer between the translucent film and the space layer. SOLUTION: This information recording medium 1 has first and second recording layers 4, 9 and is formed with the translucent film 5 as the silicon compd. film on the first recording layer 4. A metallic film 6 having a good adhesion property to both of the translucent film 5 and the transparent substrate 2 is formed as the extremely thin layer on the translucent film 5. The space layer 7 consisting of a UV curing resin is formed on the metallic film 6. A single plate formed with an aluminum reflection film is stuck onto the transparent substrate 2 formed with the recording layer in such a manner that the first and second recording layers 4, 9 face each other.

29. 发明专利

JPH10118588A MASTER DISK TREATING DEVICE 失效
公开(公告)号：JPH10118588A
公开(公告)日：1998-05-12
申请号：JP29335796
申请日：1996-10-15
申请人： SONY DISC TECHNOLOGY INC
发明人： FURUYAMA KAZUO
IPC分类号： B08B3/08 , G11B7/26
摘要： PROBLEM TO BE SOLVED: To prevent the readhesion of an unnecessary medicinal liquid to the front surface of a master disk by arranging a pure water film forming means around the master disk on a rotating means and forming the film of pure water over the circumference of the master disk. SOLUTION: The rotating means 12 is arranged in the central part of the master disk treating device 10 and has a turn table 22 for placing the glass master disk 20 which is a work and a motor 24. This turn table 22 is kept rotated continuously in an R direction around a central axis CL by the actuation of the motor in the state of placing the glass master disk 20 thereon. The pure water reservoir part 30 of the pure water film forming means 14 is arranged apart a spacing D over the circumference of the turn table 22 and the supply pipe 41 of a pure water supply system 40 is connected to this pure waster reservoir part 30. The pure water in a pure water supply source 60 is supplied into the pure water reservoir part 30 via a supply pipe 41. As a result, the bouncing back of the washing medicinal liquid to the glass master disk 20 is prevented.

30. 发明专利

JPH10106044A OPTICAL DISK 失效
公开(公告)号：JPH10106044A
公开(公告)日：1998-04-24
申请号：JP27164696
申请日：1996-09-20
申请人： SONY DISC TECHNOLOGY INC
发明人： FUKUCHI YOSHIJI
IPC分类号： G11B7/24
摘要： PROBLEM TO BE SOLVED: To provide an optical disk which is equipped with projections for protection on the read-out surface thereof and is simultaneously designed to prevent the generation of double refractivity and warpage, etc., due to strains in a disk substrate. SOLUTION: The optical disk 10 is constituted so that areas except a recording layer of the substrate 11 are provided with at least three projections 13 for protection by applying an ultraviolet-curing type resin in the optical disk 10 including the disk substrate 11 equipped with a hole 11a for clamping and the recording layer 12 formed so as to have a gap to a clamping zone in a region between the clamping zone 11b at the periphery of the center hole 11a and a signal area 11c on the surface of the disk substrate.

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