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1.发明公开Data recording/regenerating method, data recording/regenerating apparatus and data recording medium 失效数据记录 - / - 再现方法，数据记录 - / - 再现装置和数据记录介质
公开(公告)号：EP0737962A3
公开(公告)日：1997-04-23
申请号：EP96105794.0
申请日：1996-04-12
申请人： Ricoh Company, Ltd
CPC分类号： G11B7/0062 , G11B7/00454 , G11B7/005 , G11B7/006 , G11B7/126 , G11B7/1267 , G11B7/24 , G11B20/1403 , G11B20/1816
摘要： When recording data according to the PWM recording system by modulating signals, pulse modulation for recording a 0 signal or the like having a signal width of nT (T: Clock time) after modulation is a continuous electro-magnetic wave at a power level e, a record signal pulse array for recording a 1 signal or the like having a signal width of nT after modulation comprises a pulse section fp having a time width x and a power level a, a multi-pulse section mp in which a low level pulse at a power level b and a high power pulse at a power level c having a time width T in total alternately appear (n-n') times in all with a duty ratio y, and a pulse section op having a time width z and a power level d, and x, y, z are integers satisfying the conditions of 0.5T ≦ x ≦ 2T, 0.4 ≦ y ≦ 0.6 and 0.5T ≦ z ≦ 1T, and n' is a positive integer which is equal to or smaller than n, and controls are provided so that the condition of (a and c) > e > (b and d) is satisfied.
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2.发明公开Data recording/regenerating method, data recording/regenerating apparatus and data recording medium 失效数据记录 - / - 再现方法和数据记录 - / - 再现装置
公开(公告)号：EP1271488A2
公开(公告)日：2003-01-02
申请号：EP02021830.1
申请日：1996-04-12
申请人： Ricoh Company, Ltd.
IPC分类号： G11B7/0045 , G11B7/125
CPC分类号： G11B7/0062 , G11B7/00454 , G11B7/005 , G11B7/006 , G11B7/126 , G11B7/1267 , G11B7/24 , G11B20/1403 , G11B20/1816
摘要： When recording data according to the PWM recording system by modulating signals, pulse modulation for pulse modulation for recording for recording a 0 signal or the like having a signal width of nT (T: Clock time) after modulation is a continuous electro-magnetic wave at a power level e, a record signal pulse array for recording a 1 signal or the like having a signal width of nT after modulation comprises a pulse section fp having a time width x and a power level a, a multi-pulse section mp in which a low level pulse at a power level b and a high power pulse at a power level c having a time width T in total alternately appear (n-n') times in all with a duty ratio y, and a pulse section op having a time width z and a power level d, and x, y, z are integers satisfying the conditions of 0.5T ≦ x ≦ 2T, 0.4 ≦ y ≦ 0.6 and 0.5T ≦ z ≦ 1T, and n' is a positive integer which is equal to or smaller than n, and controls are provided so that the condition of (a and c) > e > (b and d) is satisfied.
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3.发明公开Optical data recording medium and material for heat-resistant protection layer for the same 失效Optisches Datenaufzeichnungsmedium und MaterialfüreinehitzebeständigeSchutzschicht
公开(公告)号：EP0731460A2
公开(公告)日：1996-09-11
申请号：EP96103653.0
申请日：1996-03-08
申请人： Ricoh Company, Ltd
发明人： Iwasaki, Hiroko
IPC分类号： G11B7/24
CPC分类号： G11B7/254 , G11B7/2534 , G11B7/2578 , G11B7/2585 , G11B2007/24308 , G11B2007/2431 , G11B2007/24314 , G11B2007/24316 , G11B2007/25706 , G11B2007/25708 , G11B2007/2571 , G11B2007/25711 , G11B2007/25713 , G11B2007/25715 , Y10T428/21
摘要： In a material for a heat-resistant protection layer and constituting one of the components of a phase variation type recording medium , at least one compound having a thermal conductivity of higher than 10 W/m.deg inclusive in a bulk state is contained. This kind of material realizes a phase variation type optical data recording medium having a high erasure ratio and allowing data to be repeatedly recorded and erased a number of times by small power even at the time of high-speed recording and erasure.
摘要翻译： 在耐热保护层的材料中，并且构成相变型记录介质的组分之一时，包含至少一种在大体积状态下具有高于10W / m·g以上的导热率的化合物。 这种材料实现了具有高擦除率的相位变化型光学数据记录介质，并且即使在高速记录和擦除时也允许以小功率重复记录和擦除数据的数据。
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4.发明授权Sputtering target, method of producing the target and method of fabricating an optical recording medium 失效溅射靶，产生溅射靶及其制造方法的光学记录介质的方法
公开(公告)号：EP0969457B1
公开(公告)日：2007-04-18
申请号：EP99120157.5
申请日：1995-12-13
申请人： Ricoh Company, Ltd.
发明人： Yamada, Katsuyuki , Iwasaki, Hiroko , Ide, Yukio , Harigaya, Makoto , Kageyama, Yoshiyuki , Deguchi, Hiroshi , Takahashi, Masaetsu , Hayashi, Yoshitaka c/o Ricoh Company Ltd
CPC分类号： C23C14/0623 , C23C14/3414 , G11B7/00557 , G11B7/243 , G11B7/2534 , G11B7/2542 , G11B7/258 , G11B7/2585 , G11B7/259 , G11B7/2595 , G11B7/26 , G11B7/266 , G11B2007/24308 , G11B2007/2431 , G11B2007/24314 , G11B2007/24316 , Y10S428/913 , Y10S430/146 , Y10T428/21
摘要： A sputtering target for fabricating a recording layer of a phase-change type optical recording medium contains a compound or mixture including as constituent elements Ag, In, Te and Sb with the respective atomic percent (atom.%) of alpha , beta , gamma and delta thereof being in the relationship of 2
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公开(公告)号：EP0793223B1
公开(公告)日：2004-04-28
申请号：EP97103293.3
申请日：1997-02-27
申请人： Ricoh Company, Ltd
IPC分类号： G11B7/24
CPC分类号： G11B7/257 , G11B7/24 , G11B7/243 , G11B7/2533 , G11B7/258 , G11B2007/24308 , G11B2007/2431 , G11B2007/24314 , G11B2007/24316 , G11B2007/24322 , G11B2007/24324 , G11B2007/24326 , Y10S430/146
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公开(公告)号：EP0793223A1
公开(公告)日：1997-09-03
申请号：EP97103293.3
申请日：1997-02-27
申请人： Ricoh Company, Ltd
IPC分类号： G11B7/24
CPC分类号： G11B7/257 , G11B7/24 , G11B7/243 , G11B7/2533 , G11B7/258 , G11B2007/24308 , G11B2007/2431 , G11B2007/24314 , G11B2007/24316 , G11B2007/24322 , G11B2007/24324 , G11B2007/24326 , Y10S430/146
摘要： An optical information recording medium includes a substrate with guide grooves thereon, a recording layer provided on the substrate, including a recording material of which phase is reversibly changeable from a stable state to a semistable state and vice versa, a heat-resistant dielectric protective layer provided on the recording layer, including a protective material which includes Zn, Si, S and O, and a light reflection and heat dissipation layer provided on the heat-resistant dielectric protective layer.
摘要翻译： 一种光学信息记录介质包括其上具有引导槽的衬底，设置在衬底上的记录层，记录层包括相位从稳定状态可逆地改变到半稳定状态并且反之亦然的记录材料，耐热电介质保护层 提供在记录层上，包括包含Zn，Si，S和O的保护材料，以及设置在耐热介电保护层上的光反射和散热层。
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7.发明授权Sputtering target and its use in the production of an optical recording medium 失效溅射靶及其在光学记录介质的制造中使用
公开(公告)号：EP0735158B1
公开(公告)日：2006-02-08
申请号：EP96105116.6
申请日：1996-03-29
申请人： Ricoh Company, Ltd
发明人： Ide, Yukio , Iwasaki, Hiroko , Kageyama, Yoshiyuki , Kaneko, Yujiro , Yamada, Katsuyuki , Shinotsuka, Michiaki , Harigaya, Makoto , Deguchi, Hiroshi
CPC分类号： B82Y30/00 , B22F2998/10 , B82Y10/00 , C23C14/06 , C23C14/3414 , G11B7/00454 , G11B7/24 , G11B7/243 , G11B7/2534 , G11B7/2542 , G11B7/258 , G11B7/2585 , G11B7/259 , G11B7/2595 , G11B7/26 , G11B2007/24308 , G11B2007/2431 , G11B2007/24314 , G11B2007/24316 , Y10S428/913 , B22F9/04 , B22F1/0003 , B22F3/10
摘要： A sputtering target contains a target material including as constituent elements Ag, In, Te and Sb with the respective atomic percents (atom.%) of alpha , beta , gamma and delta thereof being in the relationship of 0.5
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8.发明授权Data recording/regenerating method, data recording/regenerating apparatus and use of a data recording medium 失效数据记录 - / - 再现方法，数据记录 - / - 再现数据记录介质的装置和使用
公开(公告)号：EP0737962B1
公开(公告)日：2003-06-04
申请号：EP96105794.0
申请日：1996-04-12
申请人： Ricoh Company, Ltd
CPC分类号： G11B7/0062 , G11B7/00454 , G11B7/005 , G11B7/006 , G11B7/126 , G11B7/1267 , G11B7/24 , G11B20/1403 , G11B20/1816
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9.发明公开Sputtering target, method of producing the target and method of fabricating an optical recording medium 失效溅射靶，产生溅射靶及其制造方法的光学记录介质的方法
公开(公告)号：EP0969457A2
公开(公告)日：2000-01-05
申请号：EP99120157.5
申请日：1995-12-13
申请人： Ricoh Company, Ltd.
发明人： Yamada, Katsuyuki , Iwasaki, Hiroko , Ide, Yukio , Harigaya, Makoto , Kageyama, Yoshiyuki , Deguchi, Hiroshi , Takahashi, Masaetsu , Hayashi, Yoshitaka
CPC分类号： C23C14/0623 , C23C14/3414 , G11B7/00557 , G11B7/243 , G11B7/2534 , G11B7/2542 , G11B7/258 , G11B7/2585 , G11B7/259 , G11B7/2595 , G11B7/26 , G11B7/266 , G11B2007/24308 , G11B2007/2431 , G11B2007/24314 , G11B2007/24316 , Y10S428/913 , Y10S430/146 , Y10T428/21
摘要： A sputtering target for fabricating a recording layer of a phase-change type optical recording medium contains a compound or mixture including as constituent elements Ag, In, Te and Sb with the respective atomic percent (atom.%) of α, β, γ and δ thereof being in the relationship of 2 ≤ α ≤ 30, 3 ≤ β ≤ 30, 10 ≤ γ ≤ 50, 15 ≤ δ ≤ 83 and α + β + γ + δ = 100 , and a method of producing the above sputtering target is provided. A method of fabricating a phase-change type optical recording medium is also provided.
摘要翻译： 用于制造相变型光记录介质的记录层用溅射靶包含具有作为构成元素的Ag，在，Te和Sb的与respectivement原子百分比（原子％）中的α，β，γ和的化合物或混合物 它们的增量在2≤阿尔法≤30，3≤测试≤30的关系是，10≤伽马≤50，15≤增量≤83和α+β+伽马+，δ= 100，并且产生上述的溅射靶的方法 提供。 因此提供了一种制造相变型光记录介质的方法。
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10.发明公开Optical data recording medium and material for heat-resistant protection layer for the same 失效一种光学数据记录介质和材料的耐热性的保护层
公开(公告)号：EP0731460A3
公开(公告)日：1997-02-26
申请号：EP96103653.0
申请日：1996-03-08
申请人： Ricoh Company, Ltd
发明人： Iwasaki, Hiroko
IPC分类号： G11B7/24
CPC分类号： G11B7/254 , G11B7/2534 , G11B7/2578 , G11B7/2585 , G11B2007/24308 , G11B2007/2431 , G11B2007/24314 , G11B2007/24316 , G11B2007/25706 , G11B2007/25708 , G11B2007/2571 , G11B2007/25711 , G11B2007/25713 , G11B2007/25715 , Y10T428/21
摘要： In a material for a heat-resistant protection layer and constituting one of the components of a phase variation type recording medium , at least one compound having a thermal conductivity of higher than 10 W/m.deg inclusive in a bulk state is contained. This kind of material realizes a phase variation type optical data recording medium having a high erasure ratio and allowing data to be repeatedly recorded and erased a number of times by small power even at the time of high-speed recording and erasure.
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