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    4.
    发明专利
    未知

    公开(公告)号：AT504449T

    公开(公告)日：2011-04-15

    申请号：AT02786174

    申请日：2002-12-20

    Applicant: CANON KK

    Inventor： MURAYAMA HIROYUKI ,  ISHINAGA HIROYUKI ,  MISUMI YOSHINORI ,  MATSUI TAKAHIRO

    IPC: B41J2/01 ,  B41J2/165 ,  B05B1/16 ,  B41J2/045 ,  B41J2/055 ,  B41J2/12 ,  B41J2/125 ,  B41J2/14 ,  B41J29/38 ,  B41J29/393 ,  G01P13/00

    Abstract: In a liquid discharge detection method and apparatus which detect a liquid discharged from a liquid discharge head, an electrode is placed at a position where the liquid discharged from the liquid discharge head comes into contact with the electrode while being in contact with the head. When a liquid is discharged, and the head is connected to the electrode through the liquid, the circuit becomes a closed circuit. A voltage generated between the two ends of a resistor is obtained from a current flowing in the closed circuit. When this voltage becomes equal to or higher than a predetermined voltage, liquid discharge can be detected.

    5.
    发明专利
    未知

    公开(公告)号：AT522359T

    公开(公告)日：2011-09-15

    申请号：AT09176004

    申请日：2009-11-13

    Applicant: CANON KK

    Inventor： MATSUI TAKAHIRO ,  ISHIDA YUZURU

    IPC: B41J2/14 ,  B41J2/16

    Abstract: A substrate (100) for an ink jet head includes a heating portion (104') which generates thermal energy used for ejecting the ink; and a protective layer (107a), which covers at least the heating portion (104'), the protective layer including two or more first layers (107x) and one or more second layers (107y), where the first and second layers are alternately stacked, wherein the two or more first layers are adapted to dissolve when in contact with the ink whilst a voltage is applied so that the protective layer functions as an anode electrode, and wherein the one or more second layers are adapted not to dissolve when in contact with the ink whilst a voltage is applied so that the protective layer functions as an anode electrode.

    METHOD OF DEVICE FOR DETECTING EJECTION OF LIQUID AND INKJET RECORDER
    6.
    发明专利
    METHOD OF DEVICE FOR DETECTING EJECTION OF LIQUID AND INKJET RECORDER 审中-公开

    公开(公告)号：JP2003191463A

    公开(公告)日：2003-07-08

    申请号：JP2001397874

    申请日：2001-12-27

    Applicant: CANON KK

    Inventor： SUGIYAMA HIROYUKI ,  ISHINAGA HIROYUKI ,  MISUMI YOSHINORI ,  MATSUI TAKAHIRO

    IPC: B41J2/01 ,  B05B1/16 ,  B41J2/045 ,  B41J2/055 ,  B41J2/12 ,  B41J2/125 ,  B41J2/14 ,  B41J2/165 ,  B41J29/38 ,  B41J29/393 ,  G01P13/00

    Abstract: PROBLEM TO BE SOLVED: To solve problems wherein a conventional detector has less detection performance of an ink drop, a small output, and therefore less reliability, a high voltage is generated to be applied in a conventional device so that the device has a safety problem. SOLUTION: There is disclosed a liquid ejection detecting method and a device for detecting a liquid ejected from a liquid jet head. An electrode 9 is provided to a position where the liquid ejected from the liquid jet head 6 contacts the head 6. The liquid is ejected, and then the head 6 and the electrode 9 are connected with each other so that circuit is made to be a closed circuit. A value of a voltage generated on both ends of a resistor (r) by a current (i) flowing through the closed circuit is obtained. When the voltage becomes higher than a predetermined voltage, the ejection of the liquid can be detected. COPYRIGHT: (C)2003,JPO

    液体吐出ヘッドの制御方法、液体吐出装置
    8.
    发明专利
    液体吐出ヘッドの制御方法、液体吐出装置 审中-公开

    公开(公告)号：JP2019018511A

    公开(公告)日：2019-02-07

    申请号：JP2017141121

    申请日：2017-07-20

    Applicant: CANON KK

    Inventor： ISHIDA YUZURU ,  MISUMI YOSHINORI ,  KATO MAKI ,  YASUDA KEN ,  YOSHINARI NORIHIRO ,  MATSUI TAKAHIRO

    IPC: B41J2/14

    Abstract: 【課題】液体吐出ヘッドに設けられる発熱抵抗体と被覆部とが導通した場合における被覆部の変質や溶出の影響を抑える。【解決手段】第1の発熱抵抗体および第2の発熱抵抗体のうちの少なくともいずれかに対する駆動電圧の印加に応じて、第1の発熱抵抗体および第2の発熱抵抗体に駆動電圧が印加されていない状態で、第1の被覆部および第2の被覆部の表面電位をグランド電位以下とする。【選択図】図5

    STRUCTURAL SUBSTRATE OF RECORDING ELEMENT BASE AND METHOD OF MANUFACTURING RECORDING ELEMENT BASE
    9.
    发明专利
    STRUCTURAL SUBSTRATE OF RECORDING ELEMENT BASE AND METHOD OF MANUFACTURING RECORDING ELEMENT BASE 审中-公开

    公开(公告)号：JP2006224527A

    公开(公告)日：2006-08-31

    申请号：JP2005042542

    申请日：2005-02-18

    Applicant: CANON KK

    Inventor： KUBO KOSUKE ,  IMANAKA YOSHIYUKI ,  HATSUI TAKUYA ,  TAKEUCHI SOUTA ,  YAMAGUCHI TAKAAKI ,  MATSUI TAKAHIRO

    IPC: B41J2/05 ,  B41J2/16

    Abstract: PROBLEM TO BE SOLVED: To prevent disadvantage caused by an exposed wiring layer of a monitor section that remains on each recording element base after each of a plurality of recording element bases formed on a substrate is cut to be separated. SOLUTION: The plurality of recording element bases H1100 each comprising a heating section array having a plurality of heating sections 802 and a plurality of bonding pads H1105 which are arranged at portions in the vicinity of both end sections of the heating section array in a direction perpendicular to the array direction of the heating section array and electrically connected to the heating sections 802 are formed on the substrate. Cutting lines H1107a, H1107b for cutting to separate each of the recording element bases H1100 from the other are formed on the substrate among the recording element bases H1100 in the array direction of the heating sections 802 and in the direction perpendicular the array direction. The monitor section H1106 having the wiring layer formed on the substrate is provided on the cutting line H1107a extending in the direction perpendicular to the array direction of the heating section array on the substrate. COPYRIGHT: (C)2006,JPO&NCIPI

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