专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2000123370A METHOD OF RECORDING OPTICAL INFORMATION AND RECORDING AND REPRODUCING DEVICE THEREFOR 失效
公开(公告)号：JP2000123370A
公开(公告)日：2000-04-28
申请号：JP29371298
申请日：1998-10-15
申请人： TOSHIBA CORP
发明人： TONO HIROYUKI
IPC分类号： G11B7/135 , G11B7/00 , G11B7/0045
摘要： PROBLEM TO BE SOLVED: To provide an optical head device utilized for recording and reproducing and optical information recording medium having a high recording rate and moreover capable of stablly reproducing recorded signals. SOLUTION: An optical head device is provided with a 1st laser element 11 emitting a laser beam of a 1st wavelength, a 2nd laser element 21 emitting a laser beam of a 2nd wavelength (contains the same wavelength as the 1st wavelength) and a polarizing beam splitter 13 for putting the laser beam emitted from the 2nd laser element together with the laser beam of the 1st laser element so that the both beams can be emitted on a recording layer of an optical disk D simultaneously and the laser beams from each laser element are utilized simultaneously in the case of recording information. Moreover, the wavelength of the laser beam emitted by at least either of the laser elements is set to a high energy quantity absorbing wavelength on the recording layer of the optical disk D.

2. 发明专利

JPH1173670A OPTICAL INFORMATION RECORDER AND OPTICAL INFORMATION RECORDING METHOD 失效
公开(公告)号：JPH1173670A
公开(公告)日：1999-03-16
申请号：JP23244197
申请日：1997-08-28
申请人： TOSHIBA CORP
发明人： TONO HIROYUKI
IPC分类号： G11B7/00 , G11B7/004 , G11B7/0045 , G11B7/125
摘要： PROBLEM TO BE SOLVED: To detect the fault of a recording operation by detecting whether a recording layer is irradiated with a recording beam of prescribed intensity or not during the recording operation by the quantity of the reflected light from an optical storage medium. SOLUTION: A peak detecting circuit 5 of an optical disk device inputs the photoelectrically converted signal supplied from a photodetector 8 receiving the reflected light from the optical disk irradiated with the recording beam from a semiconductor laser oscillator to the non-inversion input side of a comparator 51 where the signal is processed by using the comparator 51, a diode 53, a capacitor 54, a resistor 55 and a comparator 52. The processed output signal from the comparator 52 is outputted to a CPU 23. The CPU 23 provides the output signal with a prescribed management width and announces the output fault of the recording beam from the semiconductor laser oscillator when the signal deviates for the prescribed time or above from the management width.

3. 发明专利

JPS6465256A FILM FORMING DEVICE 失效
公开(公告)号：JPS6465256A
公开(公告)日：1989-03-10
申请号：JP22214287
申请日：1987-09-07
申请人： TOSHIBA CORP
发明人： TONO HIROYUKI
IPC分类号： C23C14/22 , C23C14/34 , G11B7/26
摘要： PURPOSE:To control the degree of vacuum in a film forming vacuum vessel with high accuracy so that film formation is uniformized by calibrating a vacuum degree measuring means to be used at the time of film formation in accordance with the measured value of the other vacuum degree measuring means which prevents the inflow of a film forming material. CONSTITUTION:Voltage is applied by a power supply E to a target 5 in the film forming vacuum vessel 8 to generate fine particles which are brought into reaction with the gas supplied from a cylinder 10 so that the film of the resultant reaction product is stuck and formed on a substrate 1. The inside of the film forming vacuum vessel 8 of the above-mentioned film forming device is evacuated by a rotary pump 19 and a main cryostatic pump 6 to the prescribed degree of vacuum. The working gas is then introduced into the vacuum vessel from the cylinder 10 and the degree of vacuum is measured by a diaphragm type pressure gage 35, following which an ion gage 2 is calibrated. After the inflow of the film forming material is prevented by closing a solenoid valve 33, the film forming operation is carried out in accordance with the measured value of the above-mentioned ion gage 2.

4. 发明专利

JPS6453390A CARTRIDGE FOR INFORMATION STORAGE MEDIUM 失效
公开(公告)号：JPS6453390A
公开(公告)日：1989-03-01
申请号：JP21076987
申请日：1987-08-25
申请人： TOSHIBA CORP
发明人： TONO HIROYUKI
IPC分类号： G11B23/03
摘要： PURPOSE:To prevent the connector part of a shutter from coming off the guide groove of a cartridge main body even when it receives shock, by setting the width size of the connector part of the shutter larger than that of the slit of the cartridge main body. CONSTITUTION:The shutter 21 is inserted to the cartridge main body 12, and engages projecting parts 21a, 21a with the guide grooves 16, 16, and also, is loaded on the cartridge main body 12 slidably by engaging the connector parts 21b, 21b at a tip part with the guide grooves 18, 18. Next, the slippage of the shutter 21 can be prevented from being generated by mounting a stopper 22. Then, the width size (b) of the connector parts 21b, 21b of the shutter 21 are set larger than the width size (a) of the slit 17 of the cartridge main body 12. In such a way, engaging areas with the guide grooves 18, 18 can be increased, and it is possible to prevent the shutter 21 from coming off the cartridge main body 12 even when it receives vibration.

5. 发明专利

JPS6326883A INFORMATION STORING MEDIUM AND ITS MANUFACTURE 失效
公开(公告)号：JPS6326883A
公开(公告)日：1988-02-04
申请号：JP17108886
申请日：1986-07-21
申请人： TOSHIBA CORP
发明人： TONO HIROYUKI , TAKAMIYA TAKESHI
IPC分类号： G11B7/24 , G11B7/26 , G11B23/30
摘要： PURPOSE:To make operation of an operator simple by displaying information that correlates the body of an information storing medium and a cassette in a display section provided in the cassette and storing it in an information storing layer of the body of the information storing medium. CONSTITUTION:To manufacture an information storing medium, an optical disk 13 is inserted into a disk cartridge 12 manufactured separately and a bar code 15 that indicates information of manufacture corresponding to the inserted optical disk 13 is stuck on the side of the cartridge 12. Manufacture's serial number and date of manufacture of the optical disk 13 are read optically from the bar code 15, and read data are stored optically in the information storing layer of the disk 13. Thereby, troubles such as key inputting the number and data of manufacture etc. can be reduced, and accordingly, storing process can be simplified, and efficiency of operation of an operator can be heightened. Further, a computer that generates stored data corresponding to the number and date of manufacture by key inputting becomes unnecessary, and whole manufacturing unit can be made small.

6. 发明专利

JPS62283432A OPTICAL RECORDING MEDIUM 失效
公开(公告)号：JPS62283432A
公开(公告)日：1987-12-09
申请号：JP12640486
申请日：1986-05-31
申请人： TOSHIBA CORP
发明人： TONO HIROYUKI
IPC分类号： B41M5/26 , G11B7/24
摘要： PURPOSE:To form adequate pits by providing a circular substrate and recording layer which is laminated on said substrate, is constituted of at least two kinds of materials, and is changed in the comsn. ratio of said materials along the diametral direction of the substrate. CONSTITUTION:The substrate 22 is made of a transparent resin such as polycarbonate or transparent glass and the recording layer 23 is changed in the optical characteristics and shape by the application of thermal energy of a laser beam to be spot-radiated thereto, by which an optical disk 21 is formed. This recording layer 23 is constituted of the thin film such as GeTe film or TeSe consisting of a binary or more element alloy or compd. The compsn. ratio (content) of the materials constituting such film is changed along the radial direction of the substrate 22. The film is formed of such compsn. ratio at which the sensitivity (recording sensitivity) to cause the optical characteristics or shape to be changed by the application of the thermal energy is increased toward the outside peripheral part (arrow b) of an optical disk 21.

7. 发明专利

JP2004005834A OPTICAL DISK DEVICE AND ITS RECORDING POWER CONTROL METHOD 审中-公开
公开(公告)号：JP2004005834A
公开(公告)日：2004-01-08
申请号：JP2002159990
申请日：2002-05-31
申请人： TOSHIBA CORP
发明人： TONO HIROYUKI
IPC分类号： G11B7/0045 , G11B7/125
摘要： PROBLEM TO BE SOLVED: To provide an optical disk device and its recording power control method in which the control of recording power by test writing at a prescribed high recording speed can be omitted when a new high recording speed is selected and easiness to use for a user can be improved if the control of recording power by test writing at the prescribed high recording speed is performed for an attached optical disk. SOLUTION: Optimum recording power P(Si) at the prescribed high recording speed Si is obtained by a test writing. When recording at the new high recording speed Sj is required, the optimum recording power (Si) in the high recording speed Si is multiplied by previously set coefficients (Si, Sj), and optimum recording power P(Sj) at the new high recording speed Sj is obtained. COPYRIGHT: (C)2004,JPO

8. 发明专利

JP2002237045A OPTICAL DISK RECORDING AND PLAYBACK UNIT AND ITS CONTROL METHOD 失效
公开(公告)号：JP2002237045A
公开(公告)日：2002-08-23
申请号：JP2001032706
申请日：2001-02-08
申请人： TOSHIBA CORP
发明人： TONO HIROYUKI
IPC分类号： G11B7/0045 , G11B7/125
摘要： PROBLEM TO BE SOLVED: To provide an optical disk recording and playback unit which can form a high-definition record mark irrespective of performance of focus control and which accordingly, suppresses variations in the amplitudes of reproduction signals and can set record conditions most suitable for data writing, and to provide its control method. SOLUTION: Record power which optimizes the asymmetry of various kinds of reproduction signals read from an optical disk 11 and having different inversion intervals, is set as a record condition. The pulse width of a record pulse for recording data on the optical disk 11 is varied from a standard pulse width on the basis of the difference of the amplitude level of each reproduction signal having a different inversion interval in which the asymmetry is optimized.

9. 发明专利

JPH0729208A INFORMATION RECORDING MEDIUM AND DEVICE FOR PRODUCING THE SAME 失效
公开(公告)号：JPH0729208A
公开(公告)日：1995-01-31
申请号：JP17305493
申请日：1993-07-13
申请人： TOSHIBA CORP
发明人： TONO HIROYUKI
IPC分类号： G11B7/24 , G11B7/26
摘要： PURPOSE:To uniformize the thickness of a resin protective material for protecting a metallic layer (recording layer) formed on a disk substrate. CONSTITUTION:An optical disk has a recording layer 20 on the disk substrate D. The thickness of the recording layer 20 has been continuously varied in a direction from the inner circumference of the substrate D toward the outer circumference in the boundary part 26 between the recording layer 20 formed region and the recording layer unformed region on the substrate D. The recording layer 20 is formed so that the thickness of metallic layers 22, 24 fed to the substrate D is made smaller in the central region on the substrate D than in the other region by means of a pedestal part 14c brought into close contact with the central part of the substrate D and a flange part 14b having a larger area than the pedestal part 14c.

10. 发明专利

JPH02169295A INFORMATION RECORDING MEDIUM 失效
公开(公告)号：JPH02169295A
公开(公告)日：1990-06-29
申请号：JP32493088
申请日：1988-12-23
申请人： TOSHIBA CORP
发明人： OKAWA HIDEKI , OZAWA NORIO , MATSUBARA MOTONARI , TONO HIROYUKI
IPC分类号： B41M5/26 , G11B7/24 , G11B7/243 , G11B7/244 , G11B7/251
摘要： PURPOSE:To obtain a high-sensitivity information recording medium capable of satisfactory optical recording even upon an increase in rotating frequency by providing a recording film comprising an Ag-Te alloy, carbon and hydrogen in specified composition ratios. CONSTITUTION:A recording film comprises an Ag-Te alloy, carbon and hydrogen, and has a structure in which Ag-Te alloy clusters are dispersed in a C-H matrix formed by chemical bonds of carbon and hydrogen. The Ag content is preferably 2-55 atomic %. The composition ratio of carbon and hydrogen is preferably 25 atomic %

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式