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1. 发明授权

EP1993847B1 OPTICAL RECORDING MEDIUM 有权
标题翻译：光学记录介质
公开(公告)号：EP1993847B1
公开(公告)日：2011-10-26
申请号：EP07738220.8
申请日：2007-03-02
申请人： Ricoh Company, Ltd.
发明人： DEGUCHI, Hiroshi , HIBINO, Eiko , OHKURA, Hiroko , ITO, Kazunori , YUZURIHARA, Hajime , IWASA, Hiroyuki
IPC分类号： B41M5/26 , G11B7/24 , G11B7/243 , G11B7/254 , G11B7/257
CPC分类号： G11B7/243 , G11B7/257 , G11B2007/2431 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , Y10T428/21
摘要： An optical recording medium having first protective layer, recording layer, second protective layer, and reflective layer, wherein the recording layer contains a phase-change material represented by Formula (1″1), Formula (1-2), or Formula (1-3); the second protective layer contains one selected from zinc oxides, indium oxides, tin oxides, mixtures thereof, and materials Formula (2), and materials Formula (3). Formula (1″1): InαiSb&bgr;iX1γi(X1: Ge, Te, Zn, Mn, or mixture thereof, 0.10≦̸α1≦̸0.25, 0.65≦̸&bgr;1≦̸0.80, and 0.04≦̸γ1≦̸0.15) Formula (1-2): Gaα2Sb&bgr;2SnY2Ges2X2∈2 (X2: Te, Zn, Mn, In, or mixture thereof, 0.04≦̸α2≦̸0.09, 0.56≦̸62≦̸0.79, 0.05≦̸γ2
摘要翻译：一种光学记录介质，其具有第一保护层，记录层，第二保护层和反射层，其中所述记录层含有由式（I'1），式（1-2）或式（1）表示的相变材料 -3）; 第二保护层含有选自氧化锌，氧化铟，氧化锡，它们的混合物以及式（2）的材料和式（3）的材料中的一种。式（1-2）：Ga a2 Sb b2 Sn y2 Ge s2 x2ε2式（X2：Te，Zn，Mn，In或它们的混合物，0.04≤α2≤0.09,0.56≤62≤0.79,0.05≤γ2<0.30,0.03≤δ2≤0.19和0≤ε2≤0.09）式 3）：Mnα3Sbβ3SnY3Geδ3X3ε3（X3：Te，In，Zn，Bi或它们的混合物，0.04≤α3≤0.09,0.56≤63≤0.79,0.05≤γ3≤0.29,0.03≤δ3≤0.23,0≤ε3≤0.09）式（2）：ZnO-Al-Y [（100-α4-64）:α4:β4]（Y：Mn，Ge，Ti或它们的混合物，0.5≤α4≤10.0，且0≤B4≤25.0）式（3）：ZnO-Al 2 O 3 -Z [（100-α5-65）:α5:β5]（Z：Mn氧化物，Ge氧化物，Ti氧化物或它们的混合物，0.5≤α5≤10.0和0≤65≤30.0 ）。

2. 发明公开

EP1866916A1 OPTICAL RECORDING MEDIUM AND OPTICAL RECORDING METHOD 审中-公开
标题翻译：光学记录介质和光学记录方法
公开(公告)号：EP1866916A1
公开(公告)日：2007-12-19
申请号：EP06731336.1
申请日：2006-03-31
申请人： Ricoh Company, Ltd.
发明人： ITO, Kazunori , HIBINO, Eiko Promenade Nakamachidai , ABE, Mikiko , DEGUCHI, Hiroshi , OHKURA, Hiroko , MIURA, Hiroshi, Midoriyama Ritz 201
IPC分类号： G11B7/0045 , G11B7/125
CPC分类号： G11B7/0062 , G11B7/1263 , G11B7/2433 , G11B2007/24304 , G11B2007/2431 , G11B2007/24312 , G11B2007/24314
摘要： An optical recording method to record information with a mark length recording method, where an amorphous mark and a crystal space are recorded only in the groove of a substrate having a guide groove, with the temporal length of the mark and the space of nT (T denotes a reference clock period; n denotes a natural number). The space is formed at least by an erase pulse of power Pe; all the marks of 4T or longer are formed by a multi pulse alternatively irradiating a heating pulse of power Pw and a cooling pulse of power Pb while Pw>Pb; and the Pe and the Pw satisfy the following relations: 0.15 0.4 where tauw denotes the sum of the length of the heating pulses, and taub denotes the sum of the length of the cooling pulses.
摘要翻译：一种利用标记长度记录方法记录信息的光记录方法，其中非标记和晶体空间仅记录在具有引导槽的衬底的凹槽中，标记的时间长度和空间nT（T 表示参考时钟周期; n表示自然数）。该空间至少由功率Pe的擦除脉冲形成; 所有4T或更长的标记由多脉冲形成，交替地照射功率Pw的加热脉冲和功率Pb的冷却脉冲，同时Pw> Pb; 并且Pe和Pw满足以下关系：0.15≤Pe/Pw≤0.4和0.4≤τw/（τw+τb）≤0.8，其中τw表示加热脉冲的长度的总和，并且τb表示冷却脉冲的长度。

3. 发明公开

EP1787293A1 OPTICAL RECORDING MEDIUM 有权
标题翻译：光学记录介质
公开(公告)号：EP1787293A1
公开(公告)日：2007-05-23
申请号：EP05783408.7
申请日：2005-09-07
申请人： Ricoh Company, Ltd.
发明人： SEKIGUCHI, Hiroyoshi , ITO, Kazunori , DEGUCHI, Hiroshi , OHKURA, Hiroko , KATO, Masaki , TAKADA, Mikiko
IPC分类号： G11B7/00
CPC分类号： G11B7/252 , G11B7/24035 , G11B7/24079 , G11B7/24082 , G11B2007/2431 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316
摘要： An optical recording medium contains a recording layer being composed of a phase-change recording material where at least four elements, Ga, Sb, Sn and Ge are contained and the transfer linear velocity is 20 m/s to 30 m/s, and when the wavelength of a recording/reproducing light is within the range of 650 nm to 665 nm and the recording linear velocity is 20 m/s to 28 m/s, the refractive index Nc and the extinction coefficient Kc in a crystalline state and the refractive index Na and the extinction coefficient Ka in an amorphous state in the recording layer respectively satisfy the following numerical expressions: 2.0≦̸Nc≦̸3.0, 4.0≦̸Kc≦̸5.0, 4.0≦̸Na≦̸5.0, and 2.5≦̸Ka≦̸3.1, and information is recordable at the range of 20 m/s to 28 m/s of recording linear velocity.
摘要翻译：光记录介质包含记录层，该记录层由相变记录材料构成，其中包含至少四种元素Ga，Sb，Sn和Ge，并且传输线速度为20m / s至30m / s，并且当记录/再现光的波长在650nm至665nm的范围内，并且记录线速度为20m / s至28m / s，折射率Nc和消光系数Kc处于结晶状态，并且折射率指数Na和记录层中非晶态的消光系数Ka分别满足下列数字表达式：2.0≤Nc≤3.0,4.0≤Kc≤5.0,4.0≤Na≤5.0和2.5≤Ka≤3.1，并且信息是在20m / s到28m / s的记录线速度范围内可记录。

4. 发明公开

EP1684987A1 OPTICAL RECORDING MEDIUM AND PROCESS FOR PRODUCING THE SAME, SPATTERING TARGET, USING PROCESS OF OPTICAL RECORDING MEDIUM, AND OPTICAL RECORDING APPARATUS 审中-公开
标题翻译：记录介质和方法OPTICAL ENSURE溅射靶，使用记录介质和光学记录光学装置之方法
公开(公告)号：EP1684987A1
公开(公告)日：2006-08-02
申请号：EP04799680.6
申请日：2004-11-08
申请人： Ricoh Company, Ltd.
发明人： MIURA, Hiroshi Midoriyama Ritz 201 , ITO, Kazunori , HARIGAYA, Makoto , HIBINO, Eiko Promnard Nakamachidai , SHINKAI, Masaru , OHKURA, Hiroko Avenir 77A-103 1176-1, Kachida-cho
IPC分类号： B41M5/26 , C23C14/34 , G11B7/24 , G11B7/004
CPC分类号： G11B7/0062 , C23C14/06 , C23C14/083 , C23C14/3414 , G11B7/243 , G11B7/266 , G11B7/268 , G11B2007/2431 , G11B2007/24314 , Y10T428/21
摘要： The object of the present invention is to provide an optical recording medium and the like that is adapted to higher density and higher speed recording of 8 times or more than that of DVD (about 28 m/sec or more) and that exhibits superior repeating and reservation properties. In order to attain the object an optical recording medium is provided that comprises a substrate, and a recording layer, wherein at least one of recording, reproducing, erasing, and rewriting of information is carried out by means of reversible phase changes at marks on the recording layer, the reversible phase changes at marks are induced between crystalline and amorphous states by laser irradiation, the length of the respective marks is 0.4 mm or less in the traveling direction of the laser irradiation, and the recording layer has a composition expressed by the formula: InaSbb, wherein a and b are atomic percent of the respective elements; 0.73 ≤ β/(α+β) ≤ 0.90, α + β = 100, alternatively a composition expressed by the formula: MγIn?α#191Sb?β#191, wherein M represents an element other than In and Sb or an element combination containing two or more elements other than In and Sb; a and b are atomic percent of the respective elements, γ is atomic percent of the element or sum of atomic percent of the respective elements; 0.73 ≤ β/(α+β) ≤ 0.90, 0

5. 发明公开

EP1607953A1 OPTICAL RECORDING MEDIUM, ITS MANUFACTURING METHOD, AND RECORDING/REPRODUCING METHOD 审中-公开
标题翻译：奥地利纽约州格鲁吉亚新西兰自由广播电台（AUFZEICHNUNGSMEDIUM）
公开(公告)号：EP1607953A1
公开(公告)日：2005-12-21
申请号：EP04723400.0
申请日：2004-03-25
申请人： Ricoh Company, Ltd.
发明人： ITO, Kazunori , ISHIMI, Tomomi , KOTAKA, Kazuhiro , TOMURA, Tatsuya , NAKAMURA, Yuki , YAMADA, Katsuyuki
IPC分类号： G11B7/24 , G11B7/26 , G11B7/0045 , G11B7/005
CPC分类号： G11B7/24047 , G11B7/00454 , G11B7/00455 , G11B7/243 , G11B7/246 , G11B7/2463 , G11B7/247 , G11B7/248 , G11B7/263
摘要： An object is to provide an optical recording medium which can obtain a sufficient focusing characteristic even at recording speeds at which a recording linear velocity exceeds 4x speed at the same capacity as a DVD-ROM, and which can suppress in-plane fluctuations of the degree of modulation, and which enables highly reliable recording, and a method of manufacturing the optical recording medium and a recording and reproducing method. To this end, there is provided an optical recording medium having a substrate, and at least a recording layer and a reflective layer on the substrate, wherein the optical recording medium is formed such that the substrate has a set central value of a thickness, and when there is a substrate thickness within a given range from the set central value, an axial direction acceleration of the optical recording medium has a maximum allowable value, and as an amount of deviation from the set central value exceeds the given range, a maximum allowable value of the axial direction acceleration at the optical recording medium becomes smaller.
摘要翻译：目的是提供即使在与DVD-ROM相同的容量下记录线速度超过4倍速的记录速度也能够获得足够的聚焦特性的光记录介质，并且能够抑制平面内的波动的调制方式，能够实现高可靠性的记录，以及制造光记录介质的方法和记录和再现方法。为此，提供了一种光学记录介质，其具有基板，并且至少在基板上具有记录层和反射层，其中光学记录介质形成为使得基板具有设定的厚度中心值，以及当从设定的中心值的给定范围内存在基板厚度时，光记录介质的轴向加速度具有最大允许值，并且随着偏离设定中心值的量超过给定范围，最大允许光记录媒体的轴向加速度的值变小。

6. 发明公开

EP1993847A1 OPTICAL RECORDING MEDIUM 有权
公开(公告)号：EP1993847A1
公开(公告)日：2008-11-26
申请号：EP07738220.8
申请日：2007-03-02
申请人： Ricoh Company, Ltd.
发明人： DEGUCHI, Hiroshi , HIBINO, Eiko , OHKURA, Hiroko , ITO, Kazunori , YUZURIHARA, Hajime , IWASA, Hiroyuki
IPC分类号： B41M5/26 , G11B7/24 , G11B7/243 , G11B7/254 , G11B7/257
CPC分类号： G11B7/243 , G11B7/257 , G11B2007/2431 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , Y10T428/21
摘要： An optical recording medium having first protective layer, recording layer, second protective layer, and reflective layer, wherein the recording layer contains a phase-change material represented by Formula (1″1), Formula (1-2), or Formula (1-3); the second protective layer contains one selected from zinc oxides, indium oxides, tin oxides, mixtures thereof, and materials Formula (2), and materials Formula (3). Formula (1″1): InαiSb&bgr;iX1γi(X1: Ge, Te, Zn, Mn, or mixture thereof, 0.10≦̸α1≦̸0.25, 0.65≦̸&bgr;1≦̸0.80, and 0.04≦̸γ1≦̸0.15) Formula (1-2): Gaα2Sb&bgr;2SnY2Ges2X2∈2 (X2: Te, Zn, Mn, In, or mixture thereof, 0.04≦̸α2≦̸0.09, 0.56≦̸62≦̸0.79, 0.05≦̸γ2

7. 发明公开

EP1807836A2 OPTICAL DISK, RECORDING METHOD, RECORDING MEDIUM, AND OPTICAL DISK UNIT 有权
标题翻译：录制过程
公开(公告)号：EP1807836A2
公开(公告)日：2007-07-18
申请号：EP06747054.2
申请日：2006-05-25
申请人： Ricoh Company, Ltd.
发明人： KATO, Masaki , YAMADA, Katsuyuki , ITO, Kazunori , SHINOTSUKA, Michiaki , HIBINO, Eiko , SHINKAI, Masaru , SEKIGUCHI, Hiroyoshi
IPC分类号： G11B20/12
CPC分类号： G11B20/1217 , G11B7/00456 , G11B7/00736 , G11B7/1267 , G11B7/24038 , G11B7/24082 , G11B7/268 , G11B27/19 , G11B27/24 , G11B2007/0013 , G11B2020/1275 , G11B2020/1288 , G11B2220/216 , G11B2220/235 , G11B2220/2537
摘要： A method of recording information using a laser on a multilayer optical disk having a plurality of recording layers is provided. The plurality of recording layers include a first recording layer and a second recording layer adjacent the first recording layer. The first recording layer is provided with a first test writing area to be used for calibration of write power, and the second recording layer is provided with a second test writing area to be used for calibration of write power. The disk is arranged so that a first region of the first test writing area is superposed with a second region of the second test writing area when considered in the direction in which the laser is arranged to irradiate. The method comprises, if the second region of the second test writing area is unrecorded, recording data in the second region of the second test writing area, thereby converting the second region of the second test writing area into a recorded state; and once the second region of the second test writing area has been converted into a recorded state, performing test writing in the first region of the first test writing area.

8. 发明公开

EP1789962A1 OPTICAL RECORDING MEDIUM, RECORDING METHOD THEREOF AND EVALUATION METHOD OF OPTICAL RECORDING MEDIUM 审中-公开
标题翻译：光记录介质，其记录方法和评价程序的光学记录介质
公开(公告)号：EP1789962A1
公开(公告)日：2007-05-30
申请号：EP05785298.0
申请日：2005-09-13
申请人： Ricoh Company, Ltd.
发明人： KATO, Masaki , ITO, Kazunori , DEGUCHI, Hiroshi , OHKURA, Hiroko , ABE, Mikiko , SEKIGUCHI, Hiroyoshi
IPC分类号： G11B7/0045 , G11B7/125
CPC分类号： G11B7/0062 , G11B7/00375
摘要： A recording method of an optical recording medium comprises irradiating the medium with a laser having m pulse sets each comprising a heating pulse and a cooling pulse, in which m is a natural number; and scanning the medium with the laser at a scanning speed v to record marks each of a length nT, in which n is a natural number of 3 or more and T is a clock cycle, wherein a length TCPn of a final cooling pulse is determined in accordance with the scanning speed v using the following functions, in v

9. 发明授权

EP1712367B1 PHASE-CHANGE INFORMATION RECORDING MEDIUM, PROCESS FOR PRODUCING THE SAME AND SPUTTERING TARGET. 有权
标题翻译：相位变化信息记录介质的制造方法及溅射靶材。
公开(公告)号：EP1712367B1
公开(公告)日：2011-03-09
申请号：EP04771189.0
申请日：2004-08-04
申请人： Ricoh Company, Ltd.
发明人： OHKURA, Hiroko , ITO, Kazunori , DEGUCHI, Hiroshi , KATO, Masaki , ABE, Mikiko, Kawasakidaishi Park Familia 403 , SEKIGUCHI, Hiroyoshi , HARIGAYA, Makoto , SHINKAI, Masaru
IPC分类号： B41M5/26 , G11B7/24 , G11B7/26 , C23C14/34
CPC分类号： C23C14/3414 , G11B7/243 , G11B7/259 , G11B7/266 , G11B7/268 , G11B2007/24308 , G11B2007/2431 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316
摘要： A phase-change information recording medium such that overwrite recording is possible, the storage reliability is excellent, initial crystallization is facilitated, the capacity is equivalent to that of DVD-ROMs, the recording sensitivity is good at high linear velocities above the ten-fold recording speed. The phase-change information recording medium comprises a substrate, and over this substrate a first protective layer, a phase-change recording layer, a second protective layer and a reflective layer formed in this order or reverse order. The phase-change recording layer has a composition expressed by SnαSbβGaϜGeδTeϵ-Xζ (where X is at least one element selected from Ag, Zn, In and Cu, α, β, Ϝ ,δ, ϵ and ζ represent the compositional ratios (atomic%) of the respective elements and satisfy the following relations: 5≤α≤25, 40≤β≤91, 2≤Ϝ≤20, 2≤δ≤20, 0≤ϵ≤10, 0≤ζ≤10, and α+β+Ϝ+δ+ϵ+ζ=100).

10. 发明授权

EP1787293B1 OPTICAL RECORDING MEDIUM 有权
公开(公告)号：EP1787293B1
公开(公告)日：2010-03-31
申请号：EP05783408.7
申请日：2005-09-07
申请人： Ricoh Company, Ltd.
发明人： SEKIGUCHI, Hiroyoshi , ITO, Kazunori , DEGUCHI, Hiroshi , OHKURA, Hiroko , KATO, Masaki , TAKADA, Mikiko
IPC分类号： G11B7/00 , G11B7/243
CPC分类号： G11B7/252 , G11B7/24035 , G11B7/24079 , G11B7/24082 , G11B2007/2431 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316
摘要： An optical recording medium contains a recording layer being composed of a phase-change recording material where at least four elements, Ga, Sb, Sn and Ge are contained and the transfer linear velocity is 20 m/s to 30 m/s, and when the wavelength of a recording/reproducing light is within the range of 650 nm to 665 nm and the recording linear velocity is 20 m/s to 28 m/s, the refractive index Nc and the extinction coefficient Kc in a crystalline state and the refractive index Na and the extinction coefficient Ka in an amorphous state in the recording layer respectively satisfy the following numerical expressions: 2.0≦̸Nc≦̸3.0, 4.0≦̸Kc≦̸5.0, 4.0≦̸Na≦̸5.0, and 2.5≦̸Ka≦̸3.1, and information is recordable at the range of 20 m/s to 28 m/s of recording linear velocity.

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