Patents by Inventor Kyosuke Toda
Kyosuke Toda 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: 9452611Abstract: A holding member for a liquid storage container includes: a mounting portion for removably mounting the liquid storage container through an opening along a predetermined direction; and a locking member for locking the mounted liquid storage container to the mounting portion by being fitted to the liquid storage container, wherein the mounting portion has a regulating portion for regulating inclination of a posture of the liquid storage container relative to the predetermined direction at the time of mounting the liquid storage container, the regulating portion being a portion provided such that a space between an inner surface of the mounting portion and an outer surface facing thereto of the liquid storage container is partially narrowed along a direction of insertion.Type: GrantFiled: August 19, 2015Date of Patent: September 27, 2016Assignee: Canon Kabushiki KaishaInventors: Satoshi Kimura, Tomotsugu Kuroda, Kyosuke Toda, Naoko Tsujiuchi, Kiyomitsu Kudo
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Patent number: 9446592Abstract: A liquid ejection head includes a liquid ejection section including an element substrate having ejection ports for ejecting liquid and an electrical wiring substrate connected to a contact of the liquid ejection apparatus to transmit signals to the element substrate, a liquid tank loading section including a containing space for containing a liquid tank storing liquid to be supplied to the element substrate and a lock member having an engaging part for engaging with a holding part of the liquid tank and a fixation means for rigidly securing the liquid election section and the liquid tank loading section in position.Type: GrantFiled: May 22, 2015Date of Patent: September 20, 2016Assignee: Canon Kabushiki KaishaInventors: Sayaka Seki, Kiyomitsu Kudo, Yuichiro Akama, Satoshi Kimura, Tomotsugu Kuroda, Kyosuke Toda, Naoko Tsujiuchi, Yosuke Takagi
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Publication number: 20160236480Abstract: A liquid discharge head including a liquid storage chamber capable of holding a liquid, a liquid communication pipe communicating with the liquid storage chamber and being configured to supply the liquid from a liquid tank to the liquid storage chamber by installing the liquid tank to the pipe to communicate with the liquid tank, a discharge port communicating with the liquid storage chamber to discharge the liquid, an electrode pair each having an outside end portion located outside the liquid storage chamber and detecting a liquid level of the liquid storage chamber, and an electric contact portion connected to the outside end portion of each of the electrode pair. The electric contact portion is located above the liquid communication pipe with a discharge port surface on which the discharge port opens taking a position facing perpendicularly downward.Type: ApplicationFiled: April 28, 2016Publication date: August 18, 2016Inventors: Ryoji Inoue, Yasuo Kotaki, Tetsuya Ohashi, Hitoshi Takada, Takashi Fukushima, Hironori Murakami, Norihiro Ikebe, Hironori Fukuchi, Kyosuke Toda, Hiroki Hayashi, Takatoshi Kitagawa
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Publication number: 20160200113Abstract: To provide an ink cartridge in which a satisfactory electrical connection with a printer main assembly can be established An ink cartridge 1 detachably mountable to a cartridge mounting portion 33 including an ink receiving tube 52, an electrical connecting portion 55 and a locking lever 58, the ink cartridge 1 includes a tube inserting portion 8 into which an ink receiving tube 52 is inserted and which is provided in a lower portion at a front surface 2c of a casing 2, an electrical contact 4 provided above the tube inserting portion 8 and electrically connectable with the electrical connecting portion 55, and an engaging portion 24 provided in a position closer to the electrical contact than to the tube inserting portion 8 and engageable with the locking lever 58.Type: ApplicationFiled: March 4, 2016Publication date: July 14, 2016Inventors: Tatsuo Nanjo, Yasuo Kotaki, Kenta Udagawa, Hiroshi Koshikawa, Wataru Takahashi, Koichi Kubo, Shigeki Fukui, Naozumi Nabeshima, Soji Kondo, Masafumi Seki, Kazuya Yoshii, Satoshi Kimura, Kyosuke Toda
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Publication number: 20160200114Abstract: To provide an ink cartridge capable of accomplishing satisfactory electrical connection relative to a printer main assembly An ink cartridge 1 detachably mountable to a cartridge mounting portion 33 provided with an ink receiving tube 52 and a plurality of electrical connecting portions 55, the ink cartridge 1 including a tube inserting portion 8 into which the receiving tube 52 is insertable, a substrate 3 provided on a front side 2c in a position above the tube inserting portion 8, a plurality of electrical contacts 4 electrically connectable with the plurality of electrical connecting portions 55, the electrical contacts 4 being arranged on the substrate 3 in a direction crossing with a direction from a bottom surface 2b toward an upper surface 2aType: ApplicationFiled: March 7, 2016Publication date: July 14, 2016Inventors: Tatsuo Nanjo, Yasuo Kotaki, Kenta Udagawa, Hiroshi Koshikawa, Wataru Takahashi, Koichi Kubo, Shigeki Fukui, Naozumi Nabeshima, Soji Kondo, Masafumi Seki, Kazuya Yoshii, Satoshi Kimura, Kyosuke Toda
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Patent number: 9370928Abstract: There are provided a liquid ejecting head having a high fabrication efficiency and a high reliability of an electric connector, and a fabricating method for the liquid ejecting head. A direction in which a channel forming member is incorporated to a casing crosses a direction in which a flat spring is resiliently deformed. In incorporating the channel forming member, an abutment portion formed at the flat spring is allowed to abut on the casing, thus deforming the flat spring. The flat spring is brought into contact with an inside contact pad by a resilient restoring force of the flat spring.Type: GrantFiled: May 26, 2015Date of Patent: June 21, 2016Assignee: Canon Kabushiki KaishaInventors: Kyosuke Toda, Kiyomitsu Kudo, Satoshi Kimura
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Patent number: 9365043Abstract: Provided is a liquid ejection head, including: a connector unit; and a case in which the connector unit is movably placed. The connector unit includes: an electric contact member; and a housing configured to fix a portion between one end and another end of the electric contact member. The electric contact member includes a conductive member, the conductive member including an elastically deformable first electric contact portion formed on the one end side thereof, and an elastically deformable second electric contact portion formed on the another end side thereof.Type: GrantFiled: May 21, 2015Date of Patent: June 14, 2016Assignee: Canon Kabushiki KaishaInventors: Kyosuke Toda, Satoshi Kimura
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Patent number: 9352576Abstract: A liquid discharge head includes a liquid storage chamber capable of holding a liquid, a liquid communication pipe communicating with the liquid storage chamber and being configured to supply the liquid from a liquid tank to the liquid storage chamber by installing the liquid tank to the pipe to communicate with the liquid tank, a discharge port communicating with the liquid storage chamber to discharge the liquid, an electrode pair each having an outside end portion located outside the liquid storage chamber and detecting a liquid level of the liquid storage chamber, and an electric contact portion connected to the outside end portion of each of the electrode pair. The electric contact portion is located above the liquid communication pipe with a discharge port surface on which the discharge port opens taking a position facing perpendicularly downward.Type: GrantFiled: May 19, 2015Date of Patent: May 31, 2016Assignee: Canon Kabushiki KaishaInventors: Ryoji Inoue, Yasuo Kotaki, Tetsuya Ohashi, Hitoshi Takada, Takashi Fukushima, Hironori Murakami, Norihiro Ikebe, Hironori Fukuchi, Kyosuke Toda, Hiroki Hayashi, Takatoshi Kitagawa
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Patent number: 9321274Abstract: A liquid ejection cartridge having a liquid ejection section for ejecting liquid includes an electrical contact section to be electrically connected to a terminal section of an apparatus main body, the electrical contact section being formed by a plurality of printed substrates arranged on a same surface.Type: GrantFiled: May 1, 2015Date of Patent: April 26, 2016Assignee: CANON KABUSHIKI KAISHAInventors: Yosuke Takagi, Kiyomitsu Kudo, Yuichiro Akama, Satoshi Kimura, Tomotsugu Kuroda, Kyosuke Toda, Naoko Tsujiuchi, Sayaka Seki
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Publication number: 20160052268Abstract: A liquid ejection head includes: an element-substrate to eject liquid according to an electrical signal; an electrical circuit substrate to send the electrical signal; and a body including the element-substrate on a first face and the electrical circuit substrate on a second face, in which the liquid ejection head is mounted in a mount unit of a liquid ejection apparatus via an electrical connector; the body includes a pressure-receiving portion for receiving a force including components in first and second directions; the liquid ejection head includes first and second positioning portions that determine a position of the body; and the first positioning portion is arranged at both outsides of an arrangement region of the element substrate; the second positioning portion is arranged at both sides of the second face; and the pressure-receiving portion is arranged at the both sides and an intermediate portion of the body.Type: ApplicationFiled: August 11, 2015Publication date: February 25, 2016Inventors: Tomotsugu Kuroda, Kiyomitsu Kudo, Satoshi Kimura, Kyosuke Toda, Naoko Tsujiuchi
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Publication number: 20160052283Abstract: A holding member for a liquid storage container includes: a mounting portion for removably mounting the liquid storage container through an opening along a predetermined direction; and a locking member for locking the mounted liquid storage container to the mounting portion by being fitted to the liquid storage container, wherein the mounting portion has a regulating portion for regulating inclination of a posture of the liquid storage container relative to the predetermined direction at the time of mounting the liquid storage container, the regulating portion being a portion provided such that a space between an inner surface of the mounting portion and an outer surface facing thereto of the liquid storage container is partially narrowed along a direction of insertion.Type: ApplicationFiled: August 19, 2015Publication date: February 25, 2016Inventors: Satoshi KIMURA, Tomotsugu Kuroda, Kyosuke Toda, Naoko Tsujiuchi, Kiyomitsu Kudo
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Patent number: 9266339Abstract: A recessed portion is provided on a shorter side of a rectangular liquid supply passage. Thereby a flow pathway by the recessed portion can be ensured, and even in a case where the air bubble is trapped to be closer to and in contact with one end of the liquid supply passage, a difference in flow resistance to two ink flows generated in this state can be made small. In this way, the flow speeds of the inks flowing in the periphery of the air bubble can be made small as a whole, and as a result, it is possible to suppress an ejection failure due to transfer of the air bubble to the ejection opening side or the like.Type: GrantFiled: December 2, 2014Date of Patent: February 23, 2016Assignee: Canon Kabushiki KaishaInventor: Kyosuke Toda
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Patent number: 9266341Abstract: A liquid tank holding mechanism for detachably holding a liquid tank to a main body portion includes a biasing member, a cover and a lever, wherein: the biasing member biases the liquid tank in a disengaging direction with the liquid tank mounted; the lever includes a lock, a biasing portion, a shaft, and a retainer and is attached to the cover pivotally around the shaft; when the retainer abuts the retainer catch, a center of the shaft is placed so as to be closer to the bearing region than is the shortest line linking a tip of the first bearing portion and a tip of the second bearing portion.Type: GrantFiled: May 19, 2015Date of Patent: February 23, 2016Assignee: CANON KABUSHIKI KAISHAInventors: Naoko Tsujiuchi, Satoshi Kimura, Kyosuke Toda
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Patent number: 9266329Abstract: A liquid ejection head includes an ejection section for ejecting liquid; an electrical wiring substrate having terminals to be electrically connected to the respective electrical contacts of a liquid ejection apparatus; a first loading section to be loaded with a first liquid storing container; and a second loading section to be loaded with a second liquid storing container having a width greater than that of the first liquid storing container. The wall of the liquid ejection head is provided with a rib extending in the height direction on the surface opposite to the surface mounted by the electrical wiring substrate; and the second loading section and the rib are arranged at respective positions where the second loading section and the rib overlap with each other as viewed in the direction of loading the second liquid storing container in the second loading section.Type: GrantFiled: May 22, 2015Date of Patent: February 23, 2016Assignee: Canon Kabushiki KaishaInventors: Tomotsugu Kuroda, Kiyomitsu Kudo, Yuichiro Akama, Satoshi Kimura, Kyosuke Toda, Naoko Tsujiuchi, Sayaka Seki, Yosuke Takagi
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Patent number: 9221258Abstract: A liquid ejection head includes a recording element substrate for ejecting liquid, a mounting section to be loaded with a liquid container, and a connector equipped with a contact spring capable of expanding and contracting in an axial direction to be brought into contact with a contact substrate provided on the liquid container. The axial direction of the contact spring is inclined relative to the direction of loading the liquid container in the mounting section.Type: GrantFiled: May 22, 2015Date of Patent: December 29, 2015Assignee: Canon Kabushiki KaishaInventors: Yuichiro Akama, Kiyomitsu Kudo, Satoshi Kimura, Tomotsugu Kuroda, Kyosuke Toda, Naoko Tsujiuchi, Sayaka Seki, Yosuke Takagi
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Publication number: 20150343787Abstract: Provided is a liquid ejection head, including: a connector unit; and a case in which the connector unit is movably placed. The connector unit includes: an electric contact member; and a housing configured to fix a portion between one end and another end of the electric contact member. The electric contact member includes a conductive member, the conductive member including an elastically deformable first electric contact portion formed on the one end side thereof, and an elastically deformable second electric contact portion formed on the another end side thereof.Type: ApplicationFiled: May 21, 2015Publication date: December 3, 2015Inventors: Kyosuke Toda, Satoshi Kimura
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Publication number: 20150343779Abstract: A liquid discharge head, the liquid discharge head including a liquid chamber and two electrode pins that are inserted in the liquid chamber from an upper portion of the liquid chamber. The two electrode pins are used to detect a remaining amount of liquid inside the liquid chamber on a basis of a communication state between the two electrode pins and are disposed on a centerline that is a line extending through a center of an upper surface of the liquid chamber in a moving direction of the liquid discharge head or a single electrode pin is disposed on each side of the centerline with the centerline interposed in between. An expression X1?Z1/0.4 is satisfied, where X1 is an interval between the two electrode pins and Z1 is a difference in projection lengths of the two electrode pins in the liquid chamber.Type: ApplicationFiled: May 28, 2015Publication date: December 3, 2015Inventors: Yosuke Takagi, Yuichiro Akama, Kyosuke Toda
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Publication number: 20150343790Abstract: A liquid discharge head including a liquid storage chamber capable of holding a liquid, a liquid communication pipe communicating with the liquid storage chamber and being configured to supply the liquid from a liquid tank to the liquid storage chamber by installing the liquid tank to the pipe to communicate with the liquid tank, an discharge port communicating with the liquid storage chamber to discharge the liquid, an electrode pair each having an outside end portion located outside the liquid storage chamber and detecting a liquid level of the liquid storage chamber, and an electric contact portion connected to the outside end portion of each of the electrode pair. The electric contact portion is located above the liquid communication pipe with an discharge port surface on which the discharge port opens taking a position facing perpendicularly downward.Type: ApplicationFiled: May 19, 2015Publication date: December 3, 2015Inventors: Ryoji Inoue, Yasuo Kotaki, Tetsuya Ohashi, Hitoshi Takada, Takashi Fukushima, Hironori Murakami, Norihiro Ikebe, Hironori Fukuchi, Kyosuke Toda, Hiroki Hayashi, Takatoshi Kitagawa
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Publication number: 20150343774Abstract: There are provided a liquid ejecting head having a high fabrication efficiency and a high reliability of an electric connector, and a fabricating method for the liquid ejecting head. A direction in which a channel forming member is incorporated to a casing crosses a direction in which a flat spring is resiliently deformed. In incorporating the channel forming member, an abutment portion formed at the flat spring is allowed to abut on the casing, thus deforming the flat spring. The flat spring is brought into contact with an inside contact pad by a resilient restoring force of the flat spring.Type: ApplicationFiled: May 26, 2015Publication date: December 3, 2015Inventors: Kyosuke TODA, Kiyomitsu KUDO, Satoshi KIMURA
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Publication number: 20150343785Abstract: A liquid tank holding mechanism for detachably holding a liquid tank to a main body portion includes a biasing member, a cover and a lever, wherein: the biasing member biases the liquid tank in a disengaging direction with the liquid tank mounted; the lever includes a lock, a biasing portion, a shaft, and a retainer and is attached to the cover pivotally around the shaft; when the retainer abuts the retainer catch, a center of the shaft is placed so as to be closer to the bearing region than is the shortest line linking a tip of the first bearing portion and a tip of the second bearing portion.Type: ApplicationFiled: May 19, 2015Publication date: December 3, 2015Inventors: Naoko Tsujiuchi, Satoshi Kimura, Kyosuke Toda