Patents by Inventor Makiko Kimura
Makiko Kimura has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5841455Abstract: An ink container includes an ink discharging portion for discharging ink; an air vent; first liquid absorbing material for absorbing the ink therein; and a second ink absorbing material, disposed between the air vent and the first absorbing material, for absorbing the ink. The first and second absorbing materials at least partly contact each other.Type: GrantFiled: January 6, 1997Date of Patent: November 24, 1998Assignee: Canon Kabushiki KaishaInventors: Shigeaki Tanaka, Masami Ikeda, Naohito Asai, Nobuyuki Kuwabara, Makiko Kimura, Teruo Arashima, Masaaki Izumida
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Patent number: 5821962Abstract: A liquid ejecting head for ejecting liquid by generation of a bubble includes an ejection outlet through which the liquid is ejected; a liquid flow path in fluid communication with the ejection outlet; a bubble generation region for generate the bubble in the liquid; a movable member disposed opposed to the bubble generation region and provided with a base portion and a free end portion closer to the ejection outlet than the base portion; wherein the movable member is displaced by a pressure produced by the bubble generated in the bubble generation region to eject the liquid through the ejection outlet; wherein the movable member has an inflection portion at a portion opposed to the bubble generation region.Type: GrantFiled: May 30, 1996Date of Patent: October 13, 1998Assignee: Canon Kabushiki KaishaInventors: Kiyomitsu Kudo, Makiko Kimura, Toshio Kashino, Takeshi Okazaki, Aya Yoshihira, Yoshie Nakata
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Patent number: 5798397Abstract: Provided is a composition curable by active energy rays, comprising a cationic polyacryloyl compound having two or more acryloyl groups and one or more cation groups in a molecule, represented by any of General Formulae (1) to (6) ##STR1## wherein Z.sub.1 to Z.sub.6 represent independently a residue derived from a polyhydric alcohol or a polyepoxide,K.sub.1 represents independently a radical of the formula ##STR2## K.sub.2 represents a radical of the formula ##STR3## R.sub.1 represents independently a radical of the formula ##STR4## wherein R.sub.3 is independently H-- or CH.sub.3 --, and R.sub.2 represents independently a radical of the formulaCH.sub.2 .dbd.CHCOO--, or CH.sub.2 .dbd.C(CH.sub.3)COO--.Type: GrantFiled: December 24, 1996Date of Patent: August 25, 1998Assignee: Canon Kabushiki KaishaInventors: Hiromichi Noguchi, Makiko Kimura, Masato Katayama, Akio Kashiwazaki, Yoshie Nakata, Yuko Nishioka
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Patent number: 5798778Abstract: The present invention makes it an object to provide an ink jet head which enables to prevent ink droplets deposited on the discharging outlet face thereof from arriving at the discharging outlets arranged at the discharging outlet face whereby maintaining the discharging outlets in a state that defective ink discharging is not occurred, wherein the discharging outlet face contains a water repellent zone disposed to surround the discharging outlets and a recessed hydrophilic zone disposed in a region on one of the opposite outsides of the water repellent zone and which is distant by a desired distance from the arrangement of the discharging outlets. In the ink jet head, the recessed hydrophilic zone serves to take ink droplets deposited on the discharging outlet face thereinto and because of this, desirable printing can be attained even in the case where printing is conducted at a high speed printing or a high driving frequency.Type: GrantFiled: September 16, 1997Date of Patent: August 25, 1998Assignee: Canon Kabushiki KaishaInventors: Makiko Kimura, Hiroshi Sugitani, Sadayuki Sugama, Hiroyuki Ishinaga
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Patent number: 5774151Abstract: A liquid ejecting head for a liquid ejecting apparatus for performing a recording operation by ejecting liquid from the liquid ejecting head includes as essential components a base plate having a plurality of liquid ejecting elements, and a grooved member having a plurality of grooves formed thereon corresponding to the liquid ejecting elements. The grooved member is connected to the base plate and composed of a grooved element and a supporting member. A liquid ejecting apparatus operable for performing a recording operation includes as essential components a liquid ejecting head of the foregoing type and a signal supplying unit for supplying,a series of signals to the liquid ejecting head for activating a plurality of liquid ejecting elements.Type: GrantFiled: September 11, 1997Date of Patent: June 30, 1998Assignee: Canon Kabushiki KaishaInventors: Hiroshi Sugitani, Masaki Inaba, Masami Ikeda, Yutaka Koizumi, Masami Kasamoto, Tsuyoshi Orikasa, Makiko Kimura, Toshio Kashino, Seiichiro Karita, Haruhiko Terai, Akira Goto
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Patent number: 5703632Abstract: An ink jet head includes a passage-forming member providing a plurality of ink passages and an orifice plate having an array of ejection outlets in communication with respective ink passages. The orifice plate has a plurality of edge portions and the ejection outlets are arranged along a line that runs parallel to at least one of the edge portions and intersects opposing edge portions at crossing points. A confining member is configured to hold the orifice plate against the passage-forming member only in areas proximate to the crossing points.Type: GrantFiled: December 9, 1996Date of Patent: December 30, 1997Assignee: Canon Kabushiki KaishaInventors: Teruo Arashima, Makiko Kimura, Toshio Kashino, Hiroshi Sugitani, Yoshifumi Hattori, Masami Ikeda, Asao Saito, Kazuaki Masuda, Akio Saito, Tsuyoshi Orikasa
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Patent number: 5681643Abstract: Provided is a composition curable by active energy rays, comprising a cationic polyacryloyl compound having two or more acryloyl groups and one or more cation groups in a molecule, represented by any of General Formulae (1) to (6) ##STR1## wherein Z.sub.1 to Z.sub.6 represent independently a residue derived from a polyhydric alcohol or a polyepoxide,K.sub.1 represents independently a radical of the formula ##STR2## K.sub.2 represents a radical of the formula ##STR3## R.sub.1 presents independently a radical of the formula ##STR4## wherein R.sub.3 is independently H-- or CH.sub.3 --, andR.sub.2 represents independently a radical of the formulaCH.sub.2 .dbd.CHCOO--, or CH.sub.2 .dbd.C(CH.sub.3)COO--.Type: GrantFiled: October 12, 1995Date of Patent: October 28, 1997Assignee: Canon Kabushiki KaishaInventors: Hiromichi Noguchi, Makiko Kimura, Masato Katayama, Akio Kashiwazaki, Yoshie Nakata, Yuko Nishioka
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Patent number: 5623287Abstract: An ink container, as well as a method of making the same, which has ink absorbing material for retaining ink, a casing for holding the ink absorbing material, an ink supply port through which ink is withdrawn from the absorbing material, and an air vent. The air vent and ink supply port are each provided adjacent to different longitudinal halves of the ink absorbing material, and the casing is initially filled with an amount of ink which is larger than the quantity of ink which can be retained by the ink absorbing material. Then, ink adjacent to the air vent is removed to such an extent that the casing contains the quantity of the ink which the ink absorbing material can retain. Thus, ink is retained at a higher density adjacent to the ink supply port than adjacent to the air vent.Type: GrantFiled: May 30, 1995Date of Patent: April 22, 1997Assignee: Canon Kabushiki KaishaInventors: Hideo Saikawa, Seiichiro Karita, Toshio Kashino, Akio Saito, Hiroshi Nakagomi, Teruo Arashima, Makiko Kimura, Hiroshi Sugitani, Yoshifumi Hattori, Masami Ikeda, Masaaki Izumida, Shigeaki Tanaka, Nobuyuki Kuwabara, Asao Saito, Kazuaki Masuda, Tsuyoshi Orikasa
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Patent number: 5621446Abstract: An ink container includes an ink discharging portion for discharging ink; an air vent; first liquid absorbing material for absorbing the ink therein and; a second ink absorbing material, disposed between the air vent and the first absorbing material, for absorbing the ink. The first and second absorbing materials at least partly contacting each other.Type: GrantFiled: January 3, 1995Date of Patent: April 15, 1997Assignee: Canon Kabushiki KaishaInventors: Shigeaki Tanaka, Masami Ikeda, Naohito Asai, Nobuyuki Kuwabara, Makiko Kimura, Teruo Arashima, Masaaki Izumida
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Patent number: 5515091Abstract: A replaceable ink tank, removably connectable to an ink jet head body, comprises a container providing a reservoir for liquid ink to be supplied to a print head on the ink jet head body and having opposing side walls configured for guiding the side walls of the ink jet head body as the container and ink jet head body are being connected. The container includes an ink supply port positioned relative to the side walls for accepting an ink communication pipe of the ink jet head body. An engaging member on each of the container side walls engages a respective coupling member on the ink jet head body for connecting the container with the ink jet head body and holding the ink tank and the ink jet head body together with an absorbing member in the container compressed by the ink communication pipe to enable delivery of ink in said absorbing member to the ink communication pipe.Type: GrantFiled: January 26, 1994Date of Patent: May 7, 1996Assignee: Canon Kabushiki KaishaInventors: Makiko Kimura, Tsutomu Abe, Akio Saito, Hiroshi Nakagomi
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Patent number: 5500666Abstract: A recording head cartridge includes a recording head for ejecting recording liquid in the form of a droplet thereof; a container for containing the recording liquid; a communicating pipe for substantially balancing pressure in the container with an ambient pressure; a blocking plate disposed adjacent an inside opening of the pipe at a position away from the opening.Type: GrantFiled: August 9, 1994Date of Patent: March 19, 1996Assignee: Canon Kabushiki KaishaInventors: Yoshifumi Hattori, Seiichiro Karita, Hideo Saikawa, Toshio Kashino, Akio Saito, Hiroshi Nakagomi, Teruo Arashima, Makiko Kimura, Hiroshi Sugitani, Masami Ikeda, Asao Saito, Kazuaki Masuda, Tsuyoshi Orikasa
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Patent number: 5485184Abstract: An ink jet head includes first and second members for constituting liquid passages by joining them together; the second member has an ejection outlet forming member having a thickness a and is provided with a jaw having a dimension b, wherein an inside end of an ejection outlet of the ejection outlet forming member is displaced by a distance c from adjacent wall of a liquid passage, with b.gtoreq.5 microns, c.gtoreq.3 microns, and 20 microns.ltoreq.a+b.ltoreq.60 microns.Type: GrantFiled: May 4, 1995Date of Patent: January 16, 1996Assignee: Canon Kabushiki KaishaInventors: Hiroshi Nakagomi, Teruo Arashima, Kunihiko Maeoka, Takashi Ohba, Jun Kawai, Tsutomu Abe, Hiroshi Sugitani, Yoshifumi Hattori, Masami Ikeda, Asao Saito, Kazuaki Masuda, Akio Saito, Makiko Kimura, Toshio Kashino, Hideo Saikawa, Seiichiro Karita, Tsuyoshi Orikasa
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Patent number: 5436649Abstract: An ink jet head includes first and second members for constituting liquid passages by joining them together; and a clamp for applying a line pressure to one of the members. By using such a clamp, the pressing force can be concentrated in a line to provide a uniform pressing force to ensure reliable clamping.Type: GrantFiled: November 17, 1994Date of Patent: July 25, 1995Assignee: Canon Kabushiki KaishaInventors: Hiroshi Nakagomi, Teruo Arashima, Kunihiko Maeoka, Takashi Ohba, Jun Kawai, Tsutomu Abe, Hiroshi Sugitani, Yoshifumi Hattori, Masami Ikeda, Asao Saito, Kazuaki Masuda, Akio Saito, Makiko Kimura, Toshio Kashino, Hideo Saikawa, Seiichiro Karita, Tsuyoshi Orikasa
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Patent number: 5389957Abstract: An ink jet head includes a base member, a first member having recesses and coupled with the base member to form ink passages using the recesses and a second member integral with the first member and extending at an angle from an end of the first member, the second member having ink ejection outlets communicating with the ink passages.Type: GrantFiled: September 8, 1992Date of Patent: February 14, 1995Assignee: Canon Kabushiki KaishaInventors: Makiko Kimura, Toshio Kashino, Teruo Arashima, Hiroshi Sugitani, Yoshifumi Hattori, Masami Ikeda, Asao Saito, Kazuaki Masuda, Akio Saito, Tsuyoshi Orikasa, Takashi Ohba, Kunihiko Maeoka, Jun Kawai, Tsutomu Abe, Hiroshi Nakagomi
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Patent number: 5280299Abstract: An ink jet head cartridge include an ink container and a porous material contained in the container for retaining the ink. A process for filling the ink container includes the steps of supplying ink in a quantity greater than that which the porous material can retain through a first port and removing through a second port at least a quantity of ink which the porous material cannot retain. The process can also be performed through a single port. At least one of the ports can also be used for communicating with a recording head portion of the cartridge.Type: GrantFiled: June 21, 1991Date of Patent: January 18, 1994Assignee: Canon Kabushiki KaishaInventors: Hideo Saikawa, Seiichiro Karita, Toshio Kashino, Akio Saito, Hiroshi Nakagomi, Teruo Arashima, Makiko Kimura, Hiroshi Sugitani, Yoshifumi Hattori, Masami Ikeda, Masaaki Izumida, Shigeaki Tanaka, Nobuyuki Kuwabara, Asao Saito, Kazuaki Masuda, Tsuyoshi Orikasa
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Patent number: 5237342Abstract: An ink jet head includes an ink container; a recording head having an ink ejection outlet; a supply pipe for supplying the ink from the container to the recording head; a porous material contained in the container for retaining the ink; wherein the supply pipe is pressed to the porous material to deform it, wherein a depth of the deformation is larger than a maximum length of a cross-section of the supply pipe.Type: GrantFiled: September 17, 1990Date of Patent: August 17, 1993Assignee: Canon Kabushiki KaishaInventors: Hideo Saikawa, Seiichiro Karita, Toshio Kashino, Akio Saito, Hiroshi Nakagomi, Teruo Arashima, Makiko Kimura, Hiroshi Sugitani, Yoshifumi Hattori, Masami Ikeda, Masaaki Izumida, Shigeaki Tanaka, Nobuyuki Kuwabara, Asao Saito, Kazuaki Masuda, Tsuyoshi Orikasa
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Patent number: 5189443Abstract: An ink jet cartridge includes a top plate having an orifice plate in which ejection outlets for permitting ejection of ink are formed and a portion for defining ink passages communicating with the ink ejection outlets, a heater board joined with the top plate to define the ink passage, a thin plate having a connecting region for pressing and fixing the orifice plate to the heater board, and an ink container for containing the ink to be supplied to the ink passages, wherein the thin plate is connected with the orifice plate on at least one of four sides of the orifice plate.Type: GrantFiled: June 29, 1992Date of Patent: February 23, 1993Assignee: Canon Kabushiki KaishaInventors: Teruo Arashima, Makiko Kimura, Toshio Kashino, Hiroshi Sugitani, Yoshifumi Hattori, Masami Ikeda, Asao Saito, Kazuaki Masuda, Akio Saito, Tsuyoshi Orikasa
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Patent number: 5155502Abstract: An ink-jet cartridge includes an ink-jet head body and an ink storage portion which include coupling members, respectively. The ink storage portion includes an absorbing member, while the ink-jet head body includes an ink communication pipe with an ink-introducing port held in pressure abutment with the absorbing member to compress the absorbing member when the ink-jet head body is coupled to the ink storage portion. This assures a good flow of ink to the ink-jet head body.Type: GrantFiled: January 11, 1990Date of Patent: October 13, 1992Assignee: Canon Kabushiki KaishaInventors: Makiko Kimura, Tsutomu Abe, Akio Saito, Hiroshi Nakagomi
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Patent number: 5095321Abstract: A liquid jet recording head comprises a first substrate provided with an energy-generating element that generates an energy for discharging a recording liquid, a second substrate joining to the first substrate, the second substrate having grooves that form passages for the recording liquid in accordance to the position of the energy-generating element at the joining and being integrated with a discharge port-forming member that forms discharge ports for the recording liquid on the front side of the grooves, and a force-endowing member that tightly fixes the first and second substrates to each other by a mechanically endowed force. The head has a high reliability and can be produced in a high productivity at a low cost with a smaller number of production steps.Type: GrantFiled: October 30, 1989Date of Patent: March 10, 1992Assignee: Canon Kabushiki KaishaInventors: Akio Saito, Makiko Kimura, Tsutomu Abe, Hiroshi Nakagomi, Takashi Watanabe, Norihisa Saito, Kunihiko Maeoka, Kazuaki Masuda