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    Droplet generating method for ink jet recording appts.
    2.
    发明专利
    Droplet generating method for ink jet recording appts. 未知

    公开(公告)号：DE3051249C2

    公开(公告)日：1998-03-12

    申请号：DE3051249

    申请日：1980-04-01

    Applicant: CANON KK

    Inventor： AYATA NAOKI ,  SHIRATO YOSHIAKI ,  TAKATORI YASUSHI ,  SEKI MITSUAKI

    IPC: B41J2/05 ,  B41J2/07 ,  B41J2/155 ,  B41J2/21 ,  B41J3/62 ,  H04N1/193 ,  H04N1/40 ,  H04N1/04

    Abstract: A droplet is emitted from an orifice by generating a bubble in a small liquid chamber in response to a droplet generating instruction. By causing gradual contraction of the bubble, excessive recession of the meniscus into the liquid chamber, which would hinder subsequent droplet generation, is prevented. The bubble may be produced by a heating element. The gradual contraction of the bubble is caused by the heat dissipation of the heating element, bubble or liquid, condensation to liquid, capillary liquid supply or them. combinations of The dimension of the droplet emitted from the orifice is dependent on the parameters such as the quantity of energy applied, width of the heating element, internal dia. of the liquid chamber, distance from the orifice to the heating element etc., and the physical properties of the liquid such as specific heat, thermal conductivity, thermal expansion coefficient, viscosity, etc.

    5.
    发明专利
    未知

    公开(公告)号：DE3012930A1

    公开(公告)日：1980-10-09

    申请号：DE3012930

    申请日：1980-04-02

    Applicant: CANON KK

    Inventor： SEKI MITSUAKI ,  TAZAKI SHIGEMITSU ,  SHIRATO YOSHIAKI

    IPC: B41J2/05 ,  B41J2/14 ,  B41J2/21 ,  B41J19/18 ,  B41J19/30 ,  G06K15/10

    Abstract: A recording apparatus includes a recording unit having a plurality of dot forming portions disposed in a plane, a carriage which moves incrementally in a direction normal to the plane of dot forming portions, and a laser generator mounted on the carriage. The generator has a semiconductor which radiates a laser pulse in a direction substantially perpendicular to each dot forming portion of the recording unit.

    Ink jet printing head mfg. method
    7.
    发明专利
    Ink jet printing head mfg. method 未知

    公开(公告)号：DE3051228C2

    公开(公告)日：1998-12-17

    申请号：DE3051228

    申请日：1980-03-27

    Applicant: CANON KK

    Inventor： SHIRATO YOSHIAKI ,  TAKATORI YASUSHI ,  HARA TOSHITAMI ,  NISHIMURA YUKUO ,  TAKAHASHI MICHIKO

    IPC: B41J2/16 ,  B41J2/05 ,  C09D1/00 ,  C09D177/00 ,  C09D179/00

    Abstract: The mfg. process is for an ink-jet type printing head.The latter ejects fine droplets of ink from a jet coupled to a working chamber holding the ink. Part of this jet is deposited on the printing material surface to produce the printed copy desired.In one stage a part is produced having a through bore. This forms the working chamber. In another stage this bore is connected to an aperture of another part that forms an intermediate supply chamber for the ink. In yet another stage one other part is brought close to another so that a slit is formed near the other aperture of the through bore. In the first stage a number of plate-like components can be integrally joined together

    INK JET RECORDING APPARATUS
    9.
    发明专利
    INK JET RECORDING APPARATUS 未知

    公开(公告)号：GB2119317B

    公开(公告)日：1984-05-10

    申请号：GB8231792

    申请日：1982-11-08

    Applicant: CANON KK

    Inventor： SHIRATO YOSHIAKI ,  TAKATORI YUSUSHI ,  HARA TOSHITAMI ,  NISHIMURA YUKUO ,  TAKAHASHI MICHIKO

    IPC: B41J2/14 ,  B41J2/16 ,  B41J3/04

    Abstract: An ink jet recording apparatus comprises actuating portions and lead electrodes for conducting current. The lead electrodes are wired in such a manner that a conductive member is disposed on a surface which is at a side where the ink droplets are ejected and said conductive member is a part of said lead electrode, or one actuating portion is provided with a plurality of lead electrodes, and these lead electrodes are led, substantially in parallel, to terminals which are located at a side opposite to the ejection port with respect to the actuating portion, or one chamber is provided with a plurality of actuating portions which are separated from one another, and lead electrodes connected to the actuating portions are led, substantially in parallel, to terminals which are located at a side opposite to the ejection port with respect to the actuating portion, or the actuating portion is disposed on a conductive member intervened with an insulating layer and the conductive member is a part of the lead electrode.

    LIQUID DROPLET EJECTING RECORDING HEAD
    10.
    发明专利
    LIQUID DROPLET EJECTING RECORDING HEAD 未知

    公开(公告)号：AU527059B2

    公开(公告)日：1983-02-10

    申请号：AU5676180

    申请日：1980-03-24

    Applicant: CANON KK

    Inventor： SHIRATO YOSHIAKI ,  NISHIMURA YUKUO ,  TAKAHASHI MICHIKO ,  TAKATORI YASUSHI ,  HARA TOSHITAMI

    IPC: B41J2/14 ,  B41J2/16 ,  B41J3/04 ,  B41J27/18

    Abstract: A liquid droplet ejecting recording head comprises liquid ejecting portion including an orifice for ejecting liquid droplets and a heat actuating portion communicated with the orifice, and an electrothermal transducer as a means for generating heat energy, the heat energy acting on the liquid at the heat actuating portion for ejecting liquid droplets, characterized in that the part contacting the liquid of the heat actuating portion is made of a material whose DELTA W is not more than one-tenth of 1 mg/cm2 where DELTA W is a decrement weight of the material per unit area in mg/cm2 at a time "t", when subjected to a weight decreasing test, the "t" being a time at which DELTA W(Al) is 1 mg/cm2 where DELTA W(Al) is a decrement weight of an aluminum plate of 99.9% in purity per unit area of the tested surface when subjected to the weight decreasing test.

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