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    11.
    发明专利
    未知

    公开(公告)号：DE3777758D1

    公开(公告)日：1992-04-30

    申请号：DE3777758

    申请日：1987-11-09

    Applicant: CANON KK

    Inventor： ASAI AKIRA

    IPC: B41J2/05 ,  B41J2/14 ,  B41J2/205

    Abstract: In a liquid injection recording system wherein an electrical signal is input to an electro-thermal conversion element to cause it to generate heat and produce bubbles in liquid and the liquid is injected by the action of the bubbles, a substance whose electrical resistance is varied by phase transition is used for a portion of the electro-thermal conversion element and harmonious recording is effected by the utilization of the phase transition characteristic of the substance.

    12.
    发明专利
    未知

    公开(公告)号：DE60234373D1

    公开(公告)日：2009-12-24

    申请号：DE60234373

    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

    14.
    发明专利
    未知

    公开(公告)号：DE60019482T2

    公开(公告)日：2005-10-06

    申请号：DE60019482

    申请日：2000-02-29

    Applicant: CANON KK

    Inventor： YAGI TAKAYUKI ,  TAMURA YASUYUKI ,  ASAI AKIRA ,  FURUKAWA TATSUO ,  SHINJO KATSUHIKO ,  WATANABE HIDENORI ,  TSUKADA MAMORU C O CANON KABUS ,  OKAMURA YOSHIMASA

    IPC: B41J2/05

    Abstract: In a driving method of an ink-jet recording head, heat is generated by applying a drive signal to a heating element, and this heat is given to ink to generate a bubble and discharge ink through a discharge outlet. The drive signal comprises a first drive signal (t0-t1) for storing foaming energy in ink, and a second drive signal (t1-t2) for generating a bubble in ink. The second drive signal has a signal time shorter than the boundary foaming time (ts) at which foaming energy decreases in case of performing foaming only by the second drive signal. The first drive signal is applied prior to said second drive signal in order to compensate a decrease in foaming energy. The ink is heated over the boiling temperature Tb.

    16.
    发明专利
    未知

    公开(公告)号：DE69505890T2

    公开(公告)日：1999-05-12

    申请号：DE69505890

    申请日：1995-06-07

    Applicant: CANON KK

    Inventor： SUZUKI NORITAKE ,  SUZUKI HIDETOSHI ,  ASAI AKIRA ,  YAMANO AKIHIKO

    IPC: G09G3/20 ,  G09G3/22 ,  G09G3/30 ,  H01J1/316 ,  H01J31/12 ,  H04N5/68

    Abstract: An electron-beam generating device, in which a number of cold cathode elements are matrix-wired, as well as a method of driving the device, is applied to an image forming apparatus. Statistical calculations are performed in advance with regard to a required electron-beam output, and loss produced in the matrix wiring is analyzed. Drive signals are corrected by deciding optimum correction values based upon the analytical results. As a result, when rows of the matrix are driven successively row by row, the intensity of the outputted electron beams can made accurate for any driving pattern.

    17.
    发明专利
    未知

    公开(公告)号：AT173356T

    公开(公告)日：1998-11-15

    申请号：AT95303912

    申请日：1995-06-07

    Applicant: CANON KK

    Inventor： SUZUKI NORITAKE ,  SUZUKI HIDETOSHI ,  ASAI AKIRA ,  YAMANO AKIHIKO

    IPC: G09G3/20 ,  G09G3/22 ,  G09G3/30 ,  H01J1/316 ,  H01J31/12 ,  H04N5/68

    Abstract: An electron-beam generating device, in which a number of cold cathode elements are matrix-wired, as well as a method of driving the device, is applied to an image forming apparatus. Statistical calculations are performed in advance with regard to a required electron-beam output, and loss produced in the matrix wiring is analyzed. Drive signals are corrected by deciding optimum correction values based upon the analytical results. As a result, when rows of the matrix are driven successively row by row, the intensity of the outputted electron beams can made accurate for any driving pattern.

    19.
    发明专利
    未知

    公开(公告)号：DE68921806T2

    公开(公告)日：1995-09-07

    申请号：DE68921806

    申请日：1989-07-14

    Applicant: CANON KK

    Inventor： ASAI AKIRA

    IPC: B41J2/05 ,  B41J2/14 ,  B41J2/16

    Abstract: A liquid jet recording head comprises a substrate (103) having a support; and an electricity-heat converter (107) arranged on the support, having a heat-generating resistor layer and a pair of electrodes (105, 106) electrically connected to the heat-generating resistor, with a heat-generating portion being formed between the pair of electrodes; where DELTA T = TH - To being 20 DEG C or more and 100 DEG C or less; and a member provided on the substrate for forming the liquid channel for the liquid for recording (To is the peak value of the temperature of the electricity-heat converter under driven state when no liquid for recording exists at the position of the surface of the substrate corresponding to the heat-generating portion on the surface where the bubble generated in the liquid for recording disappears; and TH is the peak value of the temperature of the electricity-heat converter under driven state when no liquid for recording exists at other positions than the above position).

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