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    3.
    发明专利
    未知

    公开(公告)号：DE69431168D1

    公开(公告)日：2002-09-12

    申请号：DE69431168

    申请日：1994-05-11

    Applicant: CANON KK

    Inventor： HIGUMA MASAHIKO ,  OHTA TOKUYA ,  SUGITANI HIROSHI ,  MASUDA KAZUAKI ,  ISHINAGA HIROYUKI ,  OSADA TORACHIKA ,  KAWAI JUN ,  SATO YOHEI ,  TANEYA YOICHI ,  SAITO TAKASHI

    IPC: B41J2/175

    Abstract: A length (c) of a melamine foamed block (12) to be accommodated in an ink tank housing (11) as measured in the longitudinal direction is dimensioned to be larger than a length (C) of the ink tank housing (11) as measured in the longitudinal direction. Thus, while the foamed block (12) is accommodated in the ink tank housing (11), it is compressed in the direction orienting toward an ink feeding port (13) from which ink is fed to a printing head (14), i.e., in the ink feeding direction. Consequently, the ink retaining force induced by the capillary force is not intensified in the compressing direction of the melamine foamed block (12), resulting in an ink feeding capability of the printing head (14) being improved. On the contrary, the ink retaining force effective at a right angle relative to the compressing direction of the melamine foamed block (12) is intensified.

    4.
    发明专利
    未知

    公开(公告)号：DE3616128C2

    公开(公告)日：2000-08-17

    申请号：DE3616128

    申请日：1986-05-14

    Applicant: MITSUBISHI CHEM CORP ,  CANON KK

    Inventor： OHTA TOKUYA ,  KOBAYASHI MASATSUNE ,  SUGA YUKO ,  MIURA KONOE ,  TAKIMOTO HIROSHI ,  YONEYAMA TOMIO

    IPC: C09B31/08 ,  C09D11/00 ,  C09D11/16

    Abstract: A naphthalenedisazoic dye represented by general formula (I); (I) wherein Q represents or a naphthalene group substituted by -SO3M; R represents a methyl group, a methoxy group, an ethoxy group; X represents a hydrogen atom, a phenyl group substituted by -SO3M; m represents 1 or 2; n represents 1 when X represents a hydrogen atom and n represents zero when X represents a phenyl group substituted by -SO3M, wherein X represents a hydrogen atom and m represents 1 when Q represents a naphthalene group substituted by -SO3M; and M represents an alkali metal atom, an ammonium, or H.A (wherein A represents an amine), and a recording liquid containing the dye. The recording liquid is suitable for use in an ink-jet recording system.

    6.
    发明专利
    未知

    公开(公告)号：DE69417468T2

    公开(公告)日：1999-10-28

    申请号：DE69417468

    申请日：1994-05-11

    Applicant: CANON KK

    Inventor： HIGUMA MASAHIKO ,  OHTA TOKUYA ,  SUGITANI HIROSHI ,  MASUDA KAZUAKI ,  ISHINAGA HIROYUKI ,  OSADA TORACHIKA ,  KAWAI JUN ,  SATO YOHEI ,  TANEYA YOICHI ,  SAITO TAKASHI

    IPC: B41J2/175

    Abstract: A length (c) of a melamine foamed block (12) to be accommodated in an ink tank housing (11) as measured in the longitudinal direction is dimensioned to be larger than a length (C) of the ink tank housing (11) as measured in the longitudinal direction. Thus, while the foamed block (12) is accommodated in the ink tank housing (11), it is compressed in the direction orienting toward an ink feeding port (13) from which ink is fed to a printing head (14), i.e., in the ink feeding direction. Consequently, the ink retaining force induced by the capillary force is not intensified in the compressing direction of the melamine foamed block (12), resulting in an ink feeding capability of the printing head (14) being improved. On the contrary, the ink retaining force effective at a right angle relative to the compressing direction of the melamine foamed block (12) is intensified.

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