公开(公告)号：DE69718970T2

公开(公告)日：2003-10-02

申请号：DE69718970

申请日：1997-07-30

Applicant: CANON KK

Inventor： MOCHIZUKI MUGA ,  SAITO ICHIRO ,  IMANAKA YOSHIYUKI ,  OZAKI TERUO ,  MIYAKOSHI TOSHIMORI

IPC: B41J2/175 ,  B41J2/05 ,  B41J2/355

公开(公告)号：DE69723372D1

公开(公告)日：2003-08-14

申请号：DE69723372

申请日：1997-08-21

Applicant: CANON KK

Inventor： SAITO ICHIRO ,  IMANAKA YOSHIYUKI ,  OZAKI TERUO ,  MIYAKOSHI TOSHIMORI ,  MOCHIZUKI MUGA

IPC: B41J2/14 ,  B41J2/16

Abstract: A substrate is formed for use of an ink jet recording head provided with a plurality of heat generating members for generating thermal energy to be utilized for discharging ink, an interlayer film arranged for the lower layer of each of said heat generating members, and a protection layer for protecting said heat generating member. Each of the heat generating members of the substrate is structured by metal and insulator, and at the same time, the rate of metal content in the vicinity of the interfaces of the heat generating member becomes smaller than that in the center of the heat generating member in the film thickness direction thereof. With the structure of such member thus arranged, it is made possible to prevent or suppress interlayer peelings and cracks from taking place in each of the heat generating resistive layers where temperature changes are made intensely due to thermal cycle.

公开(公告)号：DE69723005D1

公开(公告)日：2003-07-31

申请号：DE69723005

申请日：1997-08-21

Applicant: CANON KK

Inventor： SAITO ICHIRO ,  IMANAKA YOSHIYUKI ,  OZAKI TERUO ,  MIYAKOSHI TOSHIMORI ,  MOCHIZUKI MUGA ,  OGAWA MASAHIKO

IPC: B41J2/14 ,  B41J2/16

Abstract: A substrate for use of an ink jet recording head is provided with a plurality of heat generating members for generating thermal energy to be utilized for discharging ink. The heat generating members are structured by thin film formed by material represented by Tax Siy Rz, which has specific resistance value of 4000 mu OMEGA .cm or less, where R is one or more kinds of elements selected from among C, O, N, and x + y + z = 100. With the structure thus arranged, the heat generating members make it possible to maintain the change of resistance values within a small amount even when used continuously for a long time, and provide recorded images in high quality with long life and reliability.

公开(公告)号：DE69813154D1

公开(公告)日：2003-05-15

申请号：DE69813154

申请日：1998-12-04

Applicant: CANON KK

Inventor： ISHINAGA HIROYUKI ,  OGAWA MASAHIKO ,  IKEDA MASAMI ,  SAITO ICHIRO ,  HIROKI TOMOYUKI ,  IMANAKA YOSHIYUKI ,  OZAKI TERUO ,  KUBOTA MASAHIKO ,  TANEYA YOICHI ,  SUGIYAMA HIROYUKI

IPC: B41J2/14 ,  B41J2/05 ,  B41J2/16

Abstract: In accordance with the present invention, there is provided a liquid discharge head comprising a discharge port (5) for discharging liquid, a liquid flow path (7) provided with a bubble generation means (2) for generating bubbles in liquid in communication with the discharge port (5), and a movable member (6) provided facing said bubble generation means (2) in said liquid flow path (7) and having a free end (6b) on a downstream side toward the discharge port (5), a first surface (1a) provided with the bubble generation means being continued to at least one second surface of the side wall surface of said liquid flow path (7) and the front end surface having the opening of the discharge port (5) with a curved surface (1b), the first surface being one of surfaces forming the liquid flow path (7).

公开(公告)号：DE69812282D1

公开(公告)日：2003-04-24

申请号：DE69812282

申请日：1998-12-03

Applicant: CANON KK

Inventor： OZAKI TERUO ,  OGAWA MASAHIKO ,  IKEDA MASAMI ,  SAITO ICHIRO ,  ISHINAGA HIROYUKI ,  HIROKI TOMOYUKI ,  IMANAKA YOSHIYUKI ,  KUBOTA MASAHIKO

IPC: B41J2/05 ,  B41J2/14 ,  B41J2/16

公开(公告)号：AU4751602A

公开(公告)日：2002-12-19

申请号：AU4751602

申请日：2002-06-13

Applicant: CANON KK

Inventor： SAITO ICHIRO ,  YAMAGUCHI TAKAAKI ,  MOCHIZUKI MUGA ,  HIRAYAMA NOBUYUKI ,  IMANAKA YOSHIYUKI ,  FURUKAWA TATSUO

IPC: B41J2/135 ,  B41J2/05 ,  H01L21/8234 ,  H01L27/088 ,  B41J2/01

Abstract: A stable operation is realized without any malfunction of a driver even under a voltage condition that a supplied voltage is 3.3 V or lower. For this purpose, in an ink-jet printhead having an ink orifice for discharging ink, a plurality of heat generation elements for generating heat energy used to discharge ink, and an ink channel which incorporates the heat generation elements and communicates with the ink orifice, a driver for driving the heat generation elements, and a logic circuit for controlling the driver are formed on a single board. The gate oxide film thickness of an enhancement NMOS transistor which forms the driver is larger than that of an enhancement NMOS transistor which forms the logic circuit.

公开(公告)号：AU3944200A

公开(公告)日：2000-12-21

申请号：AU3944200

申请日：2000-06-13

Applicant: CANON KK

Inventor： MOCHIZUKI MUGA ,  SAITO ICHIRO ,  ISHINAGA HIROYUKI ,  IMANAKA YOSHIYUKI ,  MATSUMOTO NOBUYUKI ,  TANEYA YOICHI

IPC: B41J2/01 ,  B41J2/05 ,  B41J29/38

Abstract: A recording head comprises a plurality of recording elements for performing recording; a driving circuit for driving the plurality of recording elements; and a predetermined voltage generating circuit for generating a predetermined voltage to be applied to the plurality of recording elements from voltage supplied from outside. With the head thus structured, a desired voltage is generated in the interior of the head by use of the predetermined voltage generating circuit for performing recording, thus making it possible to prevent the voltage drop which may take place if the voltage is supplied from outside through a cable, as well as to prevent the durability of the heat generating elements from being damaged due to noises. It also becomes possible to set the voltage to be applied to the recording elements at an optimal value corresponding to the discharge voltage, hence stabilizing ink discharges efficiently.

公开(公告)号：CA2288359A1

公开(公告)日：2000-05-04

申请号：CA2288359

申请日：1999-11-02

Applicant: CANON KK

Inventor： INOUE RYOJI ,  SAITO ICHIRO ,  TAKENOUCHI MASANORI ,  ISHIMATSU SHIN ,  IWASAKI OSAMU ,  IMANAKA YOSHIYUKI

IPC: G06K17/00 ,  B41J2/01 ,  B41J2/05 ,  B41J2/14 ,  B41J2/175 ,  B41J2/205 ,  G06K7/12 ,  B41J2/015

Abstract: A substrate for use of an ink jet head that constitutes an ink jet head comprises a plurality of discharge ports for discharging liquid, a plurality of liquid flow paths communicated with the plurality of discharge ports, and first and second heat generating means arranged serially in the liquid flow paths in the flow path direction of the liquid flow paths for generating thermal energy which is utilized for discharging liquid in the liquid flow paths from the discharge ports, the first and second heat generating means being formed on the substrate. For this substrate, the first and second heat generating means are driven at driving frequencies of 4 kHz or more, and the first heat generating means are arranged in parallel in the direction perpendicular to the flow path direction of the liquid flow paths, and at the same time, structured with a plurality of heat generating resistive members electrically connected in series, and the second heat generating means is structured with at least one heat generating resistive member. With the structure thus arranged, this substrate makes it possible not only to stabilize liquid discharges even for the execution of a multi-valued recording, but also, provide the heat generating resistive members and liquid flow paths in higher densities.

公开(公告)号：AU9606498A

公开(公告)日：1999-06-24

申请号：AU9606498

申请日：1998-12-04

Applicant: CANON KK

Inventor： IMANAKA YOSHIYUKI ,  KUBOTA MASAHIKO ,  OZAKI TERUO ,  HIROKI TOMOYUKI ,  ISHINAGA HIROYUKI ,  SAITO ICHIRO ,  IKEDA MASAMI ,  OGAWA MASAHIKO

IPC: B41J2/01 ,  B41J2/05 ,  B41J2/14 ,  B41J2/175 ,  B41J2/04 ,  B41J2/32 ,  B41J2/335

Abstract: A liquid ejection head a plurality of ejection outlets for ejecting liquid; a first substrate and a second substrate for constituting a plurality of liquid flow paths in fluid communication with the ejection outlets, respectively when combined with each other; a plurality of energy conversion elements disposed in the liquid flow paths, respectively to convert electrical energy to ejection energy for the liquid in the liquid flow paths; a plurality of elements or electric circuits having different functions for controlling driving conditions of the energy conversion elements; wherein the elements and electric circuits are provided either on the first substrate and the second substrate, depending on their functions.

公开(公告)号：CA2255405A1

公开(公告)日：1999-06-05

申请号：CA2255405

申请日：1998-12-04

Applicant: CANON KK

Inventor： OZAKI TERUO ,  IMANAKA YOSHIYUKI ,  HIROKI TOMOYUKI ,  SAITO ICHIRO ,  IKEDA MASAMI ,  ISHINAGA HIROYUKI ,  OGAWA MASAHIKO ,  KUBOTA MASAHIKO

IPC: B41J2/175 ,  B23K26/18 ,  B41J2/05 ,  B41J2/14 ,  B41J2/16

Abstract: The present invention provides a method for manufacturing a liquid discharge head comprising a top plate including a plurality of ink discharge ports for discharging ink droplet, a plurality of first liquid passages for supplying ink in correspondence to the plurality of ink discharge ports and a common liquid chamber for supplying the ink to the first liquid passages, a liquid discharge head substrate obtained by forming second liquid passages arranged adjacent to the first liquid passages and including bubble generating areas on a substrate on which a plurality of heat generating elements for causing the ink discharge port to discharge the ink droplets and including drivers for driving the heat generating elements, and a movable diaphragm for completely isolating the first liquid passages and the second liquid passages from each other and displaceable by a bubble generated on the heat generating element, wherein the method comprises a movable diaphragm forming step for providing the movable diaphragm in such a manner that a portion for fixing the movable diaphragm is covered. The present invention further provides such a liquid discharge head and a liquid discharging apparatus having such a liquid discharge head.