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公开(公告)号：CA2287346A1
公开(公告)日：1998-10-29
申请号：CA2287346
申请日：1998-04-23
Applicant: SONY CORP
Inventor： OYAMADA MITSUAKI , TAMURA SHINICHIRO
IPC: B41M5/26 , B41M5/385 , C07D209/14 , C07D209/60 , C07D235/20 , C07D277/64 , C07D293/06 , C07D401/06 , C07D403/06 , C07D413/06 , C07D417/06 , C07D471/04 , C09B23/00 , G11B7/244 , G11B7/247 , G11B7/00
Abstract: Optical recording media comprising a base (1), a recording layer (2) formed thereon, and a reflecting layer (3) formed on the layer (2), wherein the recording layer (2) contains at least one kind of specified dyes selected from among polymethine dyes having 1 to 4 carbon atoms in the main methine chain to secure a sufficient recording sensitivity to a light in the red wavelength region.
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公开(公告)号：DE602004010897T2
公开(公告)日：2008-12-11
申请号：DE602004010897
申请日：2004-03-10
Applicant: SONY CORP
Inventor： YASUDA KOUICHI , OYAMADA MITSUAKI , NAKANO JUN , MITSUI NORIO , TAMADA SAKUYA
Abstract: An optical recording medium using Sn as the recording material to improve the jitter is provided, in which on the surface of a disc substrate 11 where a concave and convex shape dividing a track area is formed, are formed on the surface of the concave and convex shape a first protective layer 31 for protecting at least an optical recording layer 31, an optical recording layer 12 using a chemical compound at least composed of tin (Sn), nitrogen (N) and oxygen (O), formed on the first protective layer, a second protective layer 32 for protecting this optical recording layer, formed on this optical recording layer, and a light-transmittable layer 13 formed on the second protective layer; with this structure, the optical recording layer 12 under high temperature and high humidity can be stabilized by means of the first and second protective layers 31 and 32.
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公开(公告)号：AT316473T
公开(公告)日：2006-02-15
申请号：AT98917657
申请日：1998-04-23
Applicant: SONY CORP
Inventor： TAMURA SHINICHIRO , OYAMADA MITSUAKI
IPC: B41M5/26 , B41M5/385 , C07D209/14 , C07D209/60 , C07D235/20 , C07D277/64 , C07D293/06 , C07D401/06 , C07D403/06 , C07D413/06 , C07D417/06 , C07D471/04 , C09B23/00 , G11B7/244 , G11B7/247 , G11B7/00 , G11B7/24
Abstract: The present invention provides an optical recording medium including a recording layer 2 and an optical reflection layer 3 formed on a substrate 1. The recording layer 2 contains at least one particular polymethine pigment selected from polymethine pigments having 1 to 4 carbons in the methine main chain, so as to obtain a sufficient recording sensitivity for a red wavelength range of light.
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公开(公告)号：CA2517224A1
公开(公告)日：2004-09-23
申请号：CA2517224
申请日：2004-03-10
Applicant: SONY CORP
Inventor： YASUDA KOUICHI , OYAMADA MITSUAKI , MITSUI NORIO , TAMADA SAKUYA , NAKANO JUN
Abstract: An optical recording medium in which Sn is used for the recording material a nd the jitter is improved. The medium comprises a substrate (11) having projections/recesses for dividing a track area on its surface. Over the area where the projections/recess are formed, at least a first protective layer (31) for protecting an optical recording layer, an optical recording layer (12) formed on the first protective layer and containing a compound of tin (Sn), nitrogen (N), and oxygen (O), a second protective layer (32) formed on the optical recording layer and protecting the optical recording layer, and a light transmitting layer (13) formed on the second protective layer. The fir st and second protective layers (31, 32) serve to stabilize the optical recordi ng layer (12) at high temperatures and at high humidities.
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公开(公告)号：AU2003220791A1
公开(公告)日：2003-09-16
申请号：AU2003220791
申请日：2003-02-14
Applicant: SONY CORP , MITSUI CHEMICALS INC
Inventor： TAMADA SAKUYA , IWAMURA TAKASHI , SABI YUICHI , OYAMADA MITSUAKI , YAMAMOTO MASANOBU , KOIKE TADASHI , MISAWA TATSUMI , OGISO AKIRA , MARA RYOUSUKE , TOKUHIRO JUN , TSUKAHARA HISASHI
IPC: G11B7/0045 , G11B7/244 , G11B7/248 , G11B7/249 , B41M5/26 , G11B7/004 , G11B7/0055 , G11B7/24
Abstract: A rewritable optical information recording medium including a recording layer composed of an organic dye film is provided, in which recording and erasing information can be performed reversibly by laser light irradiation. A rewritable optical information recording medium including at least one organic dye film which is substantially made of only at least one kind of organic dye compounds as a recording film is provided. The recording and erasure of information are performed by a reversible physical change of the organic dye film substance caused by laser light irradiation. Specifically, data recording is performed by a physical change locally caused by the irradiation of recording laser light, data reproduction is performed by detecting change in intensity of returned light of reproducing laser light having less power than the recording laser light, and data erasure is performed by applying at least once continuous light or pulse light having laser power more than the reproducing laser light and less than the recording laser light. The physical change is a change in shape.
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Patent Agency Ranking
公开(公告)号：BR9809774A
公开(公告)日：2000-06-20
申请号：BR9809774
申请日：1998-04-23
Applicant: SONY CORP
Inventor： TAMURA SHINICHIRO , OYAMADA MITSUAKI
IPC: B41M5/26 , B41M5/385 , C07D209/14 , C07D209/60 , C07D235/20 , C07D277/64 , C07D293/06 , C07D401/06 , C07D403/06 , C07D413/06 , C07D417/06 , C07D471/04 , C09B23/00 , G11B7/244 , G11B7/247
Abstract: The present invention provides an optical recording medium including a recording layer 2 and an optical reflection layer 3 formed on a substrate 1. The recording layer 2 contains at least one particular polymethine pigment selected from polymethine pigments having 1 to 4 carbons in the methine main chain, so as to obtain a sufficient recording sensitivity for a red wavelength range of light.
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公开(公告)号：BRPI0903912A2
公开(公告)日：2015-06-30
申请号：BRPI0903912
申请日：2009-05-11
Applicant: SONY CORP
Inventor： IWAMURA TAKASHI , OYAMADA MITSUAKI , UEDA DAISUKE
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公开(公告)号：AT381995T
公开(公告)日：2008-01-15
申请号：AT04719136
申请日：2004-03-10
Applicant: SONY CORP
Inventor： YASUDA KOUICHI , OYAMADA MITSUAKI , NAKANO JUN , MITSUI NORIO , TAMADA SAKUYA
Abstract: An optical recording medium using Sn as the recording material to improve the jitter is provided, in which on the surface of a disc substrate 11 where a concave and convex shape dividing a track area is formed, are formed on the surface of the concave and convex shape a first protective layer 31 for protecting at least an optical recording layer 31, an optical recording layer 12 using a chemical compound at least composed of tin (Sn), nitrogen (N) and oxygen (O), formed on the first protective layer, a second protective layer 32 for protecting this optical recording layer, formed on this optical recording layer, and a light-transmittable layer 13 formed on the second protective layer; with this structure, the optical recording layer 12 under high temperature and high humidity can be stabilized by means of the first and second protective layers 31 and 32.
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公开(公告)号：DE69833318T2
公开(公告)日：2006-09-07
申请号：DE69833318
申请日：1998-04-23
Applicant: SONY CORP
Inventor： TAMURA SHINICHIRO , OYAMADA MITSUAKI
IPC: B41M5/26 , B41M5/385 , C07D209/14 , C07D209/60 , C07D235/20 , C07D277/64 , C07D293/06 , C07D401/06 , C07D403/06 , C07D413/06 , C07D417/06 , C07D471/04 , C09B23/00 , G11B7/00 , G11B7/244 , G11B7/247
Abstract: The present invention provides an optical recording medium including a recording layer 2 and an optical reflection layer 3 formed on a substrate 1. The recording layer 2 contains at least one particular polymethine pigment selected from polymethine pigments having 1 to 4 carbons in the methine main chain, so as to obtain a sufficient recording sensitivity for a red wavelength range of light.
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公开(公告)号：CA2441559A1
公开(公告)日：2003-07-22
申请号：CA2441559
申请日：2003-01-22
Applicant: SONY CORP
Inventor： IWAMURA TAKASHI , OYAMADA MITSUAKI , TAMADA SAKUYA , SABI YUICHI
Abstract: The present invention provides an optical recording medium in which two or more information-recording layers are laminated for obtaining a high recording density, and also incidence of light and detection. of return light can be performed with high efficiency relating to an information-recording layer at a position distant from a light-incident side, thus having satisfactory recording and reproduction characteristics; and also provides an optical recording and reproducing method for performing at least recording or reproduction of information using this optical recording medium. The optical recording medium 10 includes a plurality of information-recording layers 21, 22 between one principal plane on which light can be incident and the other principal plane on the side opposite to this one principal plane, or which a first information-recording layer 21 nearest to the other principal plane is made to be a phase-modulation type information-recording layer and the other information-recording layer 22 is made to be a reflectance-modulation type information-recording layer. In this optical recording medium 10; recording or reproduction of information relating to the first information-recording layer 21 is performed by phase-modulation method and recording or reproduction of information relating to the other information-recording layer 22 is performed by reflectance-modulation method.
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