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    32.
    发明专利
    未知

    公开(公告)号：DE69723153D1

    公开(公告)日：2003-08-07

    申请号：DE69723153

    申请日：1997-04-29

    Applicant: CANON KK

    Inventor： MITOME MASANORI ,  OKUDA MASAHIRO ,  AIBA TOSHIAKI ,  MATSUTANI SHIGEKI ,  TAKADA KAZUHIRO ,  ASAI AKIRA

    IPC: H01J1/316 ,  H01J9/02 ,  H01J1/30

    Abstract: An electron-emitting apparatus is constituted by an electron-emitting device having an electroconductive film including electron-emitting portions, and an electrode for attracting electrons. An electrically insulated elongated region is formed in the electroconductive film to divide the film into a higher potential side and a lower potential side. The insulated region has a substantially periodical shape formed of portions projecting to the higher potential side and portions projecting to the lower potential side. Continuous electron-emitting portions are present at at least part of the portion projecting to the higher potential side in one period of the insulated region.

    A LIQUID DISCHARGING METHOD ACCOMPANIED BY THE DISPLACEMENT OF A MOVABLE MEMBER, A LIQUID JET HEAD FOR IMPLEMENTING SUCH METHOD, AND A LIQUID JET APPARATUS FOR THE IMPLEMENTATION THEREOF
    35.
    发明专利
    A LIQUID DISCHARGING METHOD ACCOMPANIED BY THE DISPLACEMENT OF A MOVABLE MEMBER, A LIQUID JET HEAD FOR IMPLEMENTING SUCH METHOD, AND A LIQUID JET APPARATUS FOR THE IMPLEMENTATION THEREOF 未知

    公开(公告)号：CA2209877A1

    公开(公告)日：1998-01-12

    申请号：CA2209877

    申请日：1997-07-04

    Applicant: CANON KK

    Inventor： KUDO KIYOMITSU ,  KASHINO TOSHIO ,  ISHINAGA HIROYUKI ,  SUGAMA SADAYUKI ,  SUGIYAMA HIROYUKI ,  ASAI AKIRA

    IPC: B41J2/175 ,  B41J2/05 ,  B41J2/14

    Abstract: A liquid discharging method comprises the step of displacing the free end of the movable member following the creation of air bubble in the air bubble generating area. For this method, the fulcrum of the movable member is positioned on the side different from liquid discharging side with respect to the displacement area for the free end of the movable member to be displaceable, and at the same time, the free end thereof is arranged to face the effective bubbling area positioned on the downstream side of the central portion of the length of the effective bubbling area that forms the bubble generating area in the direction of the movable member from the fulcrum to the free end thereof, and a part of the effective bubbling area positioned to face the free end of the movable member on the downstream side of the effective bubbling area is arranged to face the displacement area directly. Thus, the initiation of the displacement of the free end of the movable member is effectuated quickly and reliably, and the pressure exerted by the air bubble creation is led to the discharge port side and the fulcrum side of the movable member sufficiently at the time of bubbling, and the development of air bubble that follows is directed to the discharge port side more reliably and efficiently.

    38.
    发明专利
    未知

    公开(公告)号：DE3632848A1

    公开(公告)日：1987-04-16

    申请号：DE3632848

    申请日：1986-09-26

    Applicant: CANON KK

    Inventor： TACHIHARA MASAYOSHI ,  HIRASAWA SHINICHI ,  IKEDA MASAMI ,  ASAI AKIRA ,  KOMURO HIROKAZU

    IPC: B41J2/14 ,  B41J3/04 ,  H05B3/26 ,  H01C7/00

    Abstract: A planar heat generating resistor has a heat generating resistor layer formed on or above a support member and a pair of opposing electrodes formed on the heat generating resistor layer, such that a width of the heat generating layer at the electrode area is larger than a width of the electrodes and a voltage is applied across the electrodes, in which a ratio of a maximum value of a gradient of phi , 2ROOT ( DIFFERENTIAL phi / DIFFERENTIAL x)2+( DIFFERENTIAL phi / DIFFERENTIAL y)2 to a value of 2ROOT ( DIFFERENTIAL phi / DIFFERENTIAL x)2+( DIFFERENTIAL phi / DIFFERENTIAL y)2 at a center of the resistor is no larger than 1.4 when a Laplace equation DIFFERENTIAL 2/ DIFFERENTIAL x2+ DIFFERENTIAL 2 phi / DIFFERENTIAL y2=0 is solved for the heat generating resistor when an orthogonal coordinate system X-Y is defined on the resistor surface, a potential at a point (x,y) on the resistor surface is represented by phi (x,y), a boundary value is imparted to an area of a circumferential boundary of the resistor which contacts to one of the electrodes, a different boundary value is imparted to an area which contacts to the other electrode, and a boundary condition in which a differential coefficient of phi to a normal direction of the circumferential boundary is zero is imparted to an area which does not contact to any of the electrodes.

    39.
    发明专利
    未知

    公开(公告)号：AT448085T

    公开(公告)日：2009-11-15

    申请号：AT02790699

    申请日：2002-11-22

    Applicant: CANON KK

    Inventor： SASAKI TOSHIAKI ,  MURAI KEIICHI ,  TAMURA YASUYUKI ,  SUGAMA SADAYUKI ,  ASAI AKIRA ,  KAWAI TSUTOMU ,  TACHIHARA MASAYOSHI

    IPC: B41J2/14 ,  A61M15/00 ,  A61M15/02 ,  B05B1/24

    Abstract: A liquid ejection head includes a liquid path; an ejection outlet forming member which constitutes a part of a wall of the liquid and which forms an ejection outlet for ejecting a droplet of liquid; a heat generating element, provided at a position opposing to the ejection outlet of the wall of the liquid flow path, for generating a bubble in the liquid by application of heat to the liquid; a restrictor portion, provided at a recessed portion of the ejection outlet, wherein the recessed portion is recessed from a plane in which the ejection outlet is formed, wherein the liquid forms a meniscus and is retained in the ejection outlet such that the restrictor portion is within the liquid, wherein an area So of an opening of the restrictor portion and a surface Sh of the heat generating element satisfy So

    40.
    发明专利
    未知

    公开(公告)号：DE69733172T2

    公开(公告)日：2006-02-16

    申请号：DE69733172

    申请日：1997-07-07

    Applicant: CANON KK

    Inventor： ASAKAWA YOSHIE ,  SUGAMA SADAYUKI ,  ASAI AKIRA ,  ISHINAGA HIROYUKI ,  KASHINO TOSHIO ,  YOSHIHIRA AYA ,  KUDO KIYOMITSU ,  SUGIYAMA HIROYUKI

    IPC: B41J2/175 ,  B41J2/05 ,  B41J2/14

    Abstract: A liquid discharging method of regulating and directing an air bubble to a discharge port by a substrate having a heat generating surface for generating heat for creating an air bubble in a liquid disposed in face-to-face relationship with a liquid discharge port, a movable member provided so as to intervene between the heat generating surface and the discharge port, and having a free end displaceable by the air bubble, the free end or a changing portion being located in an area opposed to the minimum area region of the discharge port or upstream of the opposed area, and an opposed surface opposed to a surface which provides the heat generating surface side of the movable member when the free end of the movable member is displaced by the air bubble, and fixed to cooperate with the movable member during the displacement of the movable member to direct the air bubble toward the discharge port.

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