公开(公告)号：JP2006252677A

公开(公告)日：2006-09-21

申请号：JP2005068210

申请日：2005-03-10

Applicant: Sony Corp ,  ソニー株式会社

Inventor： SATOBI YUUICHI ,  IKEDA ETSURO ,  OYAMADA MITSUAKI

IPC: G11B7/24 ,  G11B7/243

CPC classification number: G11B7/243 ,  G11B7/2531 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/257 ,  G11B2007/24312 ,  G11B2007/2432 ,  G11B2007/25706 ,  G11B2007/2571 ,  Y10T428/21

Abstract: PROBLEM TO BE SOLVED: To constitute an inexpensive and strong write-once optical recording medium having a constitution of an inorganic recording film where high density recording by using a short-wavelength light source having excellent characteristics, and an optical system of a high numerical aperture, are carried out. SOLUTION: In the write-once optical recording medium having the inorganic recording film, the inorganic recording film comprises: an oxide film 3 the main component of which is germanium (Ge) oxide GeO; and a metallic film 2 which is adjacent to the oxide film 3 and the main component of which is titanium-silicon alloy TiSi. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：为了构成具有通过使用具有优异特性的短波长光源进行高密度记录的无机记录膜的结构的便宜且强大的一次写入光学记录介质，以及光学系统 高数值孔径进行。 解决方案：在具有无机记录膜的一次写入光记录介质中，无机记录膜包括：主要成分为锗（Ge）氧化物GeO的氧化物膜3; 以及与氧化膜3相邻并且其主要成分为钛 - 硅合金TiSi的金属膜2。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2003223723A

公开(公告)日：2003-08-08

申请号：JP2002016963

申请日：2002-01-25

Applicant: SONY CORP

Inventor： SATOBI YUUICHI ,  IWAMURA TAKASHI

IPC: G11B7/24 ,  G11B7/005

Abstract: PROBLEM TO BE SOLVED: To prevent recorded data from being taken into a computer by disabling the reading in the high-speed reproduction, and to protect the copyright. SOLUTION: The films of transparent dielectric film 11 (Si 3 N 4 , the thickness of equal to 10 nm)/phase change film 12 (Ge 2 Sb 2 Te 5 , 10 nm)/transparent dielectric film 13 (Si 3 N 4 , 130 nm)/metal reflective film 2' (Ag, 60 nm) are deposited on a substrate 1. The film 12 is not deposited on the inner circumferential side, and the metal reflective film 2' is exposed. The film 12 as deposited is in an amorphous state, and is changed from the amorphous state to a crystalline state by an initialization process. The reflectance of the film 12 in the crystalline state is lower than that in the amorphous state. In the reproduction at one-fold velocity, the amorphous phase is generated by the thermal energy of a laser beam to increase the reflectance, and the reproduction can be performed. In the CD-ROM device, the amorphous phase is not generated due to the high-speed rotation, and the reflectance remains low. Therefore, the reproduction cannot be performed. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2000021041A

公开(公告)日：2000-01-21

申请号：JP18524798

申请日：1998-06-30

Applicant: SONY CORP

Inventor： SATOBI YUUICHI

IPC: G11B11/10 ,  G11B5/127

Abstract: PROBLEM TO BE SOLVED: To provide a floating type magnetic head device with which a reproduced output is sufficiently obtained and the detection of the signals, which exceed an optical diffraction limit, is made possible. SOLUTION: An optical system having a numerical aperture NA>=1 is arranged on a floating slider 1 and a magneto-optical film 3 having a magneto- optical effect is formed at the focal position of the system. While reproducing the information signals of the magnetic disk, on which a vertically magnetized film is formed, the magnetization of the vertically magnetized film is transferred to the film 3 and read by the system having the numerical aperture NA>=1, thus the information recorded on the magnetic disk is reproduced.

公开(公告)号：JP2007141420A

公开(公告)日：2007-06-07

申请号：JP2005337816

申请日：2005-11-22

Applicant: Sony Corp ,  ソニー株式会社

Inventor： SATOBI YUUICHI ,  IKEDA ETSURO ,  TAKASE FUMINORI

IPC: G11B7/24 ,  G11B7/0045 ,  G11B7/243 ,  G11B7/26

Abstract: PROBLEM TO BE SOLVED: To reduce the total number of films of an inorganic recording film and to enhance recording sensitivity in a write-once type recording medium having the inorganic recording film. SOLUTION: The write-once type optical recording medium 10 has the inorganic recording film 6 and the inorganic recording film 6 is provided with an oxide film 3 made of an oxide of germanium and a metallic film 2 adjacent to the oxide film. The metallic film 2 is provided with a first metallic film 2a comprising titanium and silicon and a second metallic film 2b comprising titanium and silicon and having a composition different from that of the first metallic film 2a and the second metallic film 2b of the metallic films is provided so as to be positioned on the oxide film 3 side. When the compositions of the first and the second metallic films 2a and 2b are defined as TiSi x and TiSi y , respectively, TiSi x and TiSi y satisfy a relation of x COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：为了减少无机记录膜的膜的总数，并提高具有无机记录膜的一次写入型记录介质中的记录灵敏度。 解决方案：一次写入型光学记录介质10具有无机记录膜6，无机记录膜6设置有由氧化物形成的氧化膜3和与氧化物膜相邻的金属膜2。 金属膜2设置有包括钛和硅的第一金属膜2a和包含钛和硅的第二金属膜2b，其组成不同于金属膜的第一金属膜2a和第二金属膜2b的组成不同 被设置成位于氧化膜3侧。 当第一和第二金属膜2a和2b的组成分别被定义为TiSi x 和TiSi y 时，TiSi x 和TiSi y 满足x

公开(公告)号：JP2003308630A

公开(公告)日：2003-10-31

申请号：JP2003037219

申请日：2003-02-14

Applicant: Mitsui Chemicals Inc ,  Sony Corp ,  ソニー株式会社 ,  三井化学株式会社

Inventor： TAMADA SAKUYA ,  IWAMURA TAKASHI ,  SATOBI YUUICHI ,  OYAMADA MITSUAKI ,  YAMAMOTO MASANOBU ,  KOIKE MASASHI ,  MISAWA TSUTAYOSHI ,  OGISO AKIRA ,  NARA RYOSUKE ,  TOKUHIRO ATSUSHI ,  TSUKAHARA TAKASHI

IPC: B41M5/26 ,  C09B47/00 ,  G11B7/0045 ,  G11B7/24 ,  G11B7/244 ,  G11B7/254 ,  G11B7/257

Abstract: PROBLEM TO BE SOLVED: To provide a new rewritable optical recording medium having a recording layer comprising an organic dye film and capable of reversibly recording/ erasing information by laser beam radiation. SOLUTION: The new rewritable optical information recording medium having as a recording film at least one layer of organic dye film comprising practically at least one kind of organic dye compound. Information is recorded and erased by reversible physical changes caused by laser beam irradiation on an organic dye film single element. Specifically, data are recorded by a local physical change by recording laser ray irradiation, data are reproduced by detecting the returned optical intensity change of a reproducing laser beam less powerful than a recording laser beam, and data are erased by at least one application of a continuous beam or a pulse beam more powerful than a recording laser beam and less powerful than the recording laser beam. A physical change involves a shape change. COPYRIGHT: (C)2004,JPO

Abstract translation: 要解决的问题：提供一种具有包括有机染料膜的记录层并且能够通过激光束辐射可逆地记录/擦除信息的新的可重写光学记录介质。 解决方案：具有作为记录膜的新的可重写光学信息记录介质至少包含一层有机染料膜，其中包含至少一种有机染料化合物。 通过激光束照射对有机染料膜单一元件引起的可逆物理变化来记录和擦除信息。 具体地说，通过记录激光照射来通过局部物理变化来记录数据，通过检测不到记录激光束强度的再现激光束的返回光强度变化来再现数据，并且通过至少一个应用 连续光束或脉冲光束比记录激光束更强大，并且比记录激光束强大。 物理变化涉及形状变化。 版权所有（C）2004，JPO

公开(公告)号：JP2001273672A

公开(公告)日：2001-10-05

申请号：JP2000086687

申请日：2000-03-27

Applicant: SONY CORP

Inventor： SATOBI YUUICHI ,  WATANABE HIDETOSHI ,  YAMAMOTO MASANOBU

IPC: G11B7/0045 ,  G11B7/005 ,  G11B7/24 ,  G11B7/244 ,  G11B7/247

Abstract: PROBLEM TO BE SOLVED: To provide a high density optical recording medium capable of attaining perfect interchangeability with a phase change recording medium in relation to an optical pickup or driver using short-wavelength light so as to increase recording density. SOLUTION: The optical recording medium ensures direct readout as a reflectance change without using a phase modulation system and has a recording film with a monolayer or multilayer structure on a substrate 1. The recording film comprises a layer 2 of an organic material which is degraded mainly by the absorption of laser light and causes a refractive index change and the reflectance of the optical recording medium to laser light of 380-450 nm wavelength for reproduction is 15-25% before the degradation and 0-10% after the degradation.

公开(公告)号：JP2001023259A

公开(公告)日：2001-01-26

申请号：JP19674599

申请日：1999-07-09

Applicant: SONY CORP

Inventor： SATOBI YUUICHI ,  KAWASE KIMITAKA

IPC: G11B11/105

Abstract: PROBLEM TO BE SOLVED: To provide a magneto-optical recording medium which is to be used for an optical system producing a small spot diameter and which has both of optical characteristics and thermal characteristics, and to provide a production method of the medium. SOLUTION: The magneto-optical recording medium is used for recording and reproducing of information by irradiation of light with almost =10 nm) required to diffuse the heat from the magneto-optical recording layer 13 and has rather high thermal conductivity compared with the magneto-optical recording layer, and light- transmitting second dielectric layer 14 formed on the light-transmitting metal layer 16, and metal reflection film 15 formed on the second dielectric layer 14 to reflect light.

公开(公告)号：JP2007141419A

公开(公告)日：2007-06-07

申请号：JP2005337815

申请日：2005-11-22

Applicant: Sony Corp ,  ソニー株式会社

Inventor： SATOBI YUUICHI ,  IKEDA ETSURO ,  TAKASE FUMINORI

IPC: G11B7/24 ,  G11B7/0045 ,  G11B7/243 ,  G11B7/254 ,  G11B7/257 ,  G11B7/26

Abstract: PROBLEM TO BE SOLVED: To reduce the total number of films and to widen a power margin in a write-once type optical recording medium having an inorganic recording film. SOLUTION: The write-once type optical recording medium 10 has the inorganic recording film 6 and the inorganic recording film 6 is provided with an oxide film 3 comprising an oxide of germanium and a metallic film 2 adjacent to the oxide film. The oxide film 6 comprises a first oxide film 3a and a second oxide film 3b and absorption coefficients of the first and the second oxide films 3a and 3b are so set as to be different from each other. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：为了减少具有无机记录膜的一次写入型光记录介质中的膜的总数和加宽功率余量。 解决方案：一次写入型光学记录介质10具有无机记录膜6，无机记录膜6设置有包含锗氧化物和邻近氧化物膜的金属膜2的氧化膜3。 氧化膜6包括第一氧化物膜3a和第二氧化膜3b，并且第一和第二氧化物膜3a和3b的吸收系数被设定为彼此不同。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2007141417A

公开(公告)日：2007-06-07

申请号：JP2005337813

申请日：2005-11-22

Applicant: Sony Corp ,  ソニー株式会社

Inventor： SATOBI YUUICHI ,  IKEDA ETSURO ,  TAKASE FUMINORI

IPC: G11B7/24 ,  G11B7/0045 ,  G11B7/243 ,  G11B7/254 ,  G11B7/257 ,  G11B7/26

CPC classification number: G11B7/243 ,  G11B7/00455 ,  G11B7/00736 ,  G11B7/24079 ,  G11B2007/24306 ,  G11B2007/24312 ,  G11B2007/2432 ,  Y10T428/21

Abstract: PROBLEM TO BE SOLVED: To provide a write-once type optical recording medium having excellent recording and reproducing characteristics and productivity and capable of attaining a low cost. SOLUTION: The write-once type optical recording medium 10 has a construction wherein an inorganic recording film 6, a dielectric film 4 and a light transmission layer 5 are sequentially layered on a substrate 1. The inorganic recording film 6 comprises a metallic film 2 and an oxide film 3 which are sequentially layered on the substrate 1. When the inorganic film 6 is irradiated with light, oxygen of the oxide film 3 is dissociated by a photocatalyst effect, oxygen concentration on the metallic film 2 side is heightened and an optical constant is changed. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供具有优异的记录和再现特性和生产率并且能够实现低成本的一次写入型光学记录介质。 解决方案：一次写入型光学记录介质10具有无机记录膜6，电介质膜4和透光层5顺序地层叠在基板1上的结构。无机记录膜6包括金属 膜2和氧化膜3，其顺序地层叠在基板1上。当用光照射无机膜6时，氧化膜3的氧被光催化剂作用解离，金属膜2侧的氧浓度升高， 光学常数被改变。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2006281751A

公开(公告)日：2006-10-19

申请号：JP2005118811

申请日：2005-04-15

Applicant: Sony Corp ,  ソニー株式会社

Inventor： SATOBI YUUICHI ,  OYAMADA MITSUAKI ,  ARAYA KATSUHISA

IPC: B41M5/26 ,  G11B7/24 ,  G11B7/243 ,  G11B7/254 ,  G11B7/257 ,  G11B7/258

Abstract: PROBLEM TO BE SOLVED: To achieve an improvement of recording playing back characteristics and simplification of a structure in a digital optical recording medium. SOLUTION: The write-once optical recording medium comprises an oxide film 3 constituting an inorganic recording film on a base material, wherein the oxide film 3 comprises a recording material derived from an oxide Ge 1 O x (x is an atomic ratio) of germanium (Ge) and a composition of the oxide film 3 is 1.0 COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：为了实现数字光学记录介质中的记录回放特性的提高和结构的简化。 解决方案：一次写入光学记录介质包括在基材上构成无机记录膜的氧化物膜3，其中氧化物膜3包含衍生自氧化物Ge的记录材料 锗（Ge）的原子比（x是原子比），氧化膜3的组成为1.0