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    3.
    发明专利
    未知

    公开(公告)号：AT514753T

    公开(公告)日：2011-07-15

    申请号：AT05785729

    申请日：2005-09-21

    Applicant: ADEKA CORP

    Inventor： YANO TORU ,  SHIGENO KOICHI

    IPC: C09B23/00 ,  G11B7/247

    Abstract: The indolium compounds of the present invention are represented by general formula (I) below and exhibit thermal decomposition behavior further suitable for optical recording materials used in an optical recording layer of an optical recording medium for high-speed recording. (In the formula, ring A represents a benzene or naphthalene ring; Z represents, for example, an optionally halogenated C 1-8 alkyl group that is optionally interrupted by -O-, -CO-, -OCO-, or -COO-; at least one of R 1 and R 2 represents a group represented by general formula (II) or (III), and when only one of R 1 and R 2 is a group represented by general formula (II) or (III), the other represents a C 1-30 organic group; R 3 and R 4 each represent a hydrogen atom, a C 1-30 organic group, or others; X represents a C 1-8 alkyl group, which is optionally substituted with a halogen atom or a hydroxyl group or optionally interrupted by an ether bond, or others; Y 1 represents a hydrogen atom or a C 1-30 organic group; n represents an integer of 0 to 4, q represents an integer of 0 to 4; An m- represents an m-valent anion; m represents 1 or 2; and p represents a coefficient to keep the electric charge neutral.)

    5.
    发明专利
    未知

    公开(公告)号：DE602004020959D1

    公开(公告)日：2009-06-18

    申请号：DE602004020959

    申请日：2004-10-29

    Applicant: ADEKA CORP ,  SONY CORP

    Inventor： WADA YUTAKA ,  SUWABE MASATSUGU ,  AKIMORI TOSHIHIRO ,  SHIMADA JUNKO ,  OYA KEIJI ,  SHIGENO KOICHI ,  YANO TORU

    IPC: B41M5/26 ,  G11B7/24 ,  G11B7/0045 ,  G11B7/244 ,  G11B7/247

    Abstract: An optical recording medium comprises a transmission substrate (1) and a recording layer (2) formed on the transmission substrate (1), the recording layer (2) containing at least a dye material expressed by a general formula shown at the following chemical formula (in the chemical formula 1, R1 represents alkyl group having carbon numbers 1 to 4, R2, R3 represent alkyl group having carbon numbers 1 to 4, benzyl group or groups combined to form 3 to 6 rings, Y1 and Y2 independently represent organic groups and X represent ClO 4 , BF 4 , PF 6 , SbF 6 ) and a dye material expressed by a general formula represented by the following chemical formula 2(in the chemical formula 2, R1 and R2 represent alkyl groups having carbon numbers 1 to 4, benzyl groups or groups combined to form 3 to 6 rings, Y1, Y2 independently represent organic groups and X represent ClO 4 , BF 4 , PF 6 , SbF 6 ): In a write once type optical recording medium such as DVD-R and DVD+R, satisfactory recording characteristics can be obtained from low-speed recording to high-speed recording.

    6.
    发明专利
    未知

    公开(公告)号：AT420142T

    公开(公告)日：2009-01-15

    申请号：AT04018782

    申请日：2004-08-06

    Applicant: ADEKA CORP

    Inventor： YANO TORU ,  SHIGENO KOICHI ,  OKADA MITSUHIRO

    IPC: B41M5/26 ,  C09B23/06 ,  C07D209/60 ,  C07D403/06 ,  C09B23/00 ,  G11B7/24 ,  G11B7/244 ,  G11B7/247

    Abstract: A cyanine compound represented by formula (I): wherein ring A and ring B each represent a substituted or unsubstituted benzene ring or a substituted or unsubstituted naphthalene ring; R , R , R , and R each represent an alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted benzyl group, or R and R are taken together, or R and R are taken together, to form a 3- to 6-membered ring, provided that at least one of R , R , R , and R is a substituted benzyl group; Y and Y each represent an organic group having 1 to 30 carbon atoms; An represents an m-valent anion; m represents an integer 1 or 2; and p represents a coefficient for maintaining overall charge neutrality.

    7.
    发明专利
    未知

    公开(公告)号：AT474021T

    公开(公告)日：2010-07-15

    申请号：AT04770959

    申请日：2004-07-27

    Applicant: ADEKA CORP

    Inventor： YANO TORU ,  SHIGENO KOICHI ,  OKADA MITSUHIRO

    IPC: B41M5/26 ,  C09B23/06 ,  B41M5/40 ,  B41M5/46 ,  C07D209/60 ,  C09B23/00 ,  G11B7/24 ,  G11B7/244 ,  G11B7/247

    Abstract: A novel cyanine compound of general formula (I) showing thermal behaviors suitable for optical recording applications, an optical recording material containing the same, and an optical recording material containing the same. wherein ring A and ring B each represent a benzene or naphthalene ring that may be substituted; at least one of the pair of adjacent groups R1 and R2 and the pair of adjacent groups R3 and R4 represent a pair of benzyl groups, and the other paired groups each represent an alkyl group having 1 to 4 carbon atoms or are connected to each other to form a 3- to 6-membered ring; Y1 and Y2 each represent an organic group having 1 to 30 carbon atoms; An m- represents an m-valent anion; m represents an integer 1 or 2; and p represents a coefficient for maintaining the charge neutrality.

    8.
    发明专利
    未知

    公开(公告)号：AT470221T

    公开(公告)日：2010-06-15

    申请号：AT05023436

    申请日：2005-10-26

    Applicant: SONY CORP ,  ADEKA CORP

    Inventor： WADA YUTAKA ,  SUWABE MASATSUGU ,  SHIMADA JUNKO ,  YANO TORU ,  OYA KEIJI ,  SHIGENO KOICHI

    IPC: G11B7/24

    Abstract: Disclosed is to provide with an optical recording medium of a write-once type in which an excellent recording characteristic can be obtained over low speed recording to high speed recording. In an optical recording medium having a recording layer that contains an organic dye, the recording layer is configured to have at least an organic dye expressed by a general formula shown in the following chemical formula 1 (in this formula, R1 represents an alkyl group of carbon number 1 through 4, R2 and R3 represent respectively an alkyl group of carbon number 1 through 4 and a benzyl group or group forming three to six-member ring by coupling, each of Y1 and Y2 represents independently an organic group, and X represents ClO 4 , FB 4 , PF 6 , and SbF 6 ) and an organic dye expressed by a general formula shown in the following chemical formula 2 (in this formula, R1 and R4 represent an alkyl group of carbon number 1 through 4, R2 and R3 represent respectively an alkyl group of carbon number 1 through 4 and a benzyl group or group forming three to six-member ring by coupling, each of Y1 and Y2 represents independently an organic group, and X represents ClO 4 , FB 4 , PF 6 , and SbF 6 ). [Chemical Formula 1]

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