Patents by Inventor Keiichiro Tsukuda
Keiichiro Tsukuda 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: 9981477Abstract: There are provided a liquid ejecting device that can efficiently supply liquid inside a liquid containing unit with a simple structure and the liquid containing unit. The present invention is the liquid ejecting device which includes a liquid container, a head that is provided on a carriage and has a liquid containing unit capable of storing liquid thereinside and a liquid ejecting unit, and a flexible member that connects the liquid container to the liquid containing unit and supplies the liquid stored inside the liquid container to the liquid containing unit. A holding member is arranged inside the liquid containing unit to hold the liquid, and the shortest distance between a supply port opened to an inside of the liquid containing unit and the holding member is 0.1 mm or more and 5.0 mm or less.Type: GrantFiled: October 14, 2016Date of Patent: May 29, 2018Assignee: CANON KABUSHIKI KAISHAInventors: Hironori Fukuchi, Keisuke Iinuma, Tatsuo Nanjo, Keiichiro Tsukuda, Yasuo Kotaki
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Patent number: 9962945Abstract: There are provided a liquid ejecting device stably containing liquid inside a liquid containing unit, a head, and a liquid filling method. The liquid ejecting device includes a liquid container that can store liquid thereinside, a head including a liquid containing unit that has a holding member capable of holding liquid thereinside and a liquid ejecting unit that ejects liquid, and a flexible member that connects the liquid container to the liquid containing unit and supplies the liquid stored inside the liquid container to the liquid containing unit, and an internal space of the liquid containing unit has a rectangular parallelepiped shape, and a value obtained by dividing a length of a long side of a cross-section along a horizontal surface in the internal space by a length of the holding member along a gravity direction is 1.5 or more in a posture having the head provided on the carriage.Type: GrantFiled: October 7, 2016Date of Patent: May 8, 2018Assignee: CANON KABUSHIKI KAISHAInventors: Tsubasa Takaoka, Keisuke Iinuma, Tatsuo Nanjo, Keiichiro Tsukuda, Yasuo Kotaki
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Patent number: 9931855Abstract: A liquid storage container for storing a liquid has a label member attached to a surface thereof. A bonding face of the label member that is bonded to the surface includes a first area and a second area having a low bonding strength. The second area covers a liquid supply port. A score line is formed on the label member, and the score line extends along a boundary between the first area and the second area and is formed in the second area.Type: GrantFiled: October 25, 2016Date of Patent: April 3, 2018Assignee: Canon Kabushiki KaishaInventors: Shigeki Fukui, Masanori Kaneko, Keiichiro Tsukuda, Yasuo Kotaki, Tatsuo Nanjo, Masafumi Seki
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Publication number: 20170305163Abstract: The printing apparatus of the present invention includes: a print head; and a liquid storage container in which a liquid storage chamber that stores a liquid to be supplied to the print head, an atmosphere communication chamber that communicates with the atmosphere, and a communication flow path that causes the liquid storage chamber and the atmosphere communication chamber to communicate are formed integrally. The liquid storage container can take a first posture in which the atmosphere communication chamber is located under the liquid storage chamber in the direction of gravity and a second posture in which the atmosphere communication chamber and the liquid storage chamber are located side by side in the horizontal direction. In the case where the liquid storage container is in the second posture, the liquid injection portion and the communication flow path are located on the upper side of the liquid storage container.Type: ApplicationFiled: July 6, 2017Publication date: October 26, 2017Inventors: Yukimichi Kimura, Takahiro Kiuchi, Junichi Kubokawa, Kyohei Sato, Koki Shimada, Masaya Shimmachi, Yusuke Tanaka, Hideaki Matsumura, Keiichiro Tsukuda, Tatsuo Nanjo
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Patent number: 9738081Abstract: The printing apparatus of the present invention includes: a print head; and a liquid storage container in which a liquid storage chamber that stores a liquid to be supplied to the print head, an atmosphere communication chamber that communicates with the atmosphere, and a communication flow path that causes the liquid storage chamber and the atmosphere communication chamber to communicate are formed integrally. The liquid storage container can take a first posture in which the atmosphere communication chamber is located under the liquid storage chamber in the direction of gravity and a second posture in which the atmosphere communication chamber and the liquid storage chamber are located side by side in the horizontal direction. In the case where the liquid storage container is in the second posture, the liquid injection portion and the communication flow path are located on the upper side of the liquid storage container.Type: GrantFiled: October 18, 2016Date of Patent: August 22, 2017Assignee: CANON KABUSHIKI KAISHAInventors: Yukimichi Kimura, Takahiro Kiuchi, Junichi Kubokawa, Kyohei Sato, Koki Shimada, Masaya Shimmachi, Yusuke Tanaka, Hideaki Matsumura, Keiichiro Tsukuda, Tatsuo Nanjo
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Publication number: 20170120608Abstract: There are provided a liquid ejecting device stably containing liquid inside a liquid containing unit, a head, and a liquid filling method. The liquid ejecting device includes a liquid container that can store liquid thereinside, a head including a liquid containing unit that has a holding member capable of holding liquid thereinside and a liquid ejecting unit that ejects liquid, and a flexible member that connects the liquid container to the liquid containing unit and supplies the liquid stored inside the liquid container to the liquid containing unit, and an internal space of the liquid containing unit has a rectangular parallelepiped shape, and a value obtained by dividing a length of a long side of a cross-section along a horizontal surface in the internal space by a length of the holding member along a gravity direction is 1.5 or more in a posture having the head provided on the carriage.Type: ApplicationFiled: October 7, 2016Publication date: May 4, 2017Inventors: Tsubasa Takaoka, Keisuke Iinuma, Tatsuo Nanjo, Keiichiro Tsukuda, Yasuo Kotaki
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Publication number: 20170120609Abstract: The printing apparatus of the present invention includes: a print head; and a liquid storage container in which a liquid storage chamber that stores a liquid to be supplied to the print head, an atmosphere communication chamber that communicates with the atmosphere, and a communication flow path that causes the liquid storage chamber and the atmosphere communication chamber to communicate are formed integrally. The liquid storage container can take a first posture in which the atmosphere communication chamber is located under the liquid storage chamber in the direction of gravity and a second posture in which the atmosphere communication chamber and the liquid storage chamber are located side by side in the horizontal direction. In the case where the liquid storage container is in the second posture, the liquid injection portion and the communication flow path are located on the upper side of the liquid storage container.Type: ApplicationFiled: October 18, 2016Publication date: May 4, 2017Inventors: Yukimichi Kimura, Takahiro Kiuchi, Junichi Kubokawa, Kyohei Sato, Koki Shimada, Masaya Shimmachi, Yusuke Tanaka, Hideaki Matsumura, Keiichiro Tsukuda, Tatsuo Nanjo
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Publication number: 20170120610Abstract: A liquid storage container for storing a liquid has a label member attached to a surface thereof. A bonding face of the label member that is bonded to the surface includes a first area and a second area having a low bonding strength. The second area covers a liquid supply port. A score line is formed on the label member, and the score line extends along a boundary between the first area and the second area and is formed in the second area.Type: ApplicationFiled: October 25, 2016Publication date: May 4, 2017Inventors: Shigeki Fukui, Masanori Kaneko, Keiichiro Tsukuda, Yasuo Kotaki, Tatsuo Nanjo, Masafumi Seki
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Publication number: 20170120612Abstract: There are provided a liquid ejecting device that can efficiently supply liquid inside a liquid containing unit with a simple structure and the liquid containing unit. The present invention is the liquid ejecting device which includes a liquid container, a head that is provided on a carriage and has a liquid containing unit capable of storing liquid thereinside and a liquid ejecting unit, and a flexible member that connects the liquid container to the liquid containing unit and supplies the liquid stored inside the liquid container to the liquid containing unit. A holding member is arranged inside the liquid containing unit to hold the liquid, and the shortest distance between a supply port opened to an inside of the liquid containing unit and the holding member is 0.1 mm or more and 5.0 mm or less.Type: ApplicationFiled: October 14, 2016Publication date: May 4, 2017Inventors: Hironori Fukuchi, Keisuke Iinuma, Tatsuo Nanjo, Keiichiro Tsukuda, Yasuo Kotaki
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Publication number: 20170120613Abstract: A downsized liquid ejecting device is provided. To do so, the liquid ejecting device includes a liquid container, a head provided on a carriage and having a liquid containing unit capable of storing liquid thereinside, and a liquid ejecting unit ejecting liquid, and a flexible member that connects between the liquid container and the liquid containing unit and supplies the liquid stored inside the liquid container to the liquid containing unit, and a concave portion is formed on an outer wall surface of the liquid containing unit, and a projected portion that is inserted to the flexible member is formed inside the concave portion.Type: ApplicationFiled: October 14, 2016Publication date: May 4, 2017Inventors: Norihiro Ikebe, Yasuo Kotaki, Keiichiro Tsukuda, Tatsuo Nanjo, Keisuke Iinuma
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Patent number: 8425022Abstract: An ink container for containing ink to be supplied to an ink jet head to which the ink container is detachably mountable, includes an ink supply port for supplying the ink to the ink jet head; a air vent for fluid communication with ambience; a claw-like projection provided on a first side of the ink container; a latching lever provided on a second side opposite from the ink container, the latching lever being resiliently supported on the ink container and having a latching claw.Type: GrantFiled: June 29, 2010Date of Patent: April 23, 2013Assignee: Canon Kabushiki KaishaInventors: Hiroyuki Inoue, Soichi Hiramatsu, Toshihiko Ujita, Keiichiro Tsukuda, Akihiro Yamanaka, Yasuo Kotaki, Sadayuki Sugama
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Publication number: 20130027463Abstract: An ink cartridge including a housing formed with a resin and an ink stored in the housing, wherein the resin includes a white mica composition; the ink includes a salt and a self-dispersible pigment having a functional group that contains two phosphonic acid groups and is bonded to the particle surface thereof; the salt includes a specific cation and a specific anion; and an amount of calcium in the ink after the ink is preserved in the housing at 60° C. for 2 months is 10.0 ppm or less.Type: ApplicationFiled: June 19, 2012Publication date: January 31, 2013Applicant: CANON KABUSHIKI KAISHAInventors: Masashi Ogasawara, Keigo Gouda, Fumiaki Fujioka, Souichi Nagai, Akiko Yasuda, Keiichiro Tsukuda, Hiromasa Amma, Kyosuke Toda
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Patent number: 8246146Abstract: A printing head includes a printing element substrate that is hard to be deformed even if the printing head falls by mistake. The printing head comprises element substrate in which an energy generating element for generating energy used for ejecting ink is provided, a first sheet-shaped portion to which the element substrate is provided, a second sheet-shaped portion provided away from the first sheet-shaped portion at an opposite side to a direction of ejecting the ink in relation to the first sheet-shaped portion, and a sheet-shaped wall member connecting the first sheet-shaped portion to the second sheet-shaped portion, wherein the wall member has a thickness of a portion connected to the second sheet-shaped portion, which is larger than a thickness of a portion connected to the first sheet-shaped portion.Type: GrantFiled: June 12, 2009Date of Patent: August 21, 2012Assignee: Canon Kabushiki KaishaInventors: Kyosuke Toda, Hideo Saikawa, Keiichiro Tsukuda, Takayuki Ono
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Patent number: 8240814Abstract: A printing head, which can suppress the occurrence of cracks in a printing element substrate, even if accidentally dropped, includes the printing element substrate, an ink flow passage and a sheet-shaped portion comprising a rectangular major surface. A rear surface side of the major surface of the sheet-shaped portion is provided with a space formed separately from the ink flow passage. A surface adjacent to the major surface is provided with an opening of the space formed therein, and the sheet-shaped portion is provided with a concave portion formed on the rear surface side of two regions between the printing element substrate and two corner portions arranged proximate to the opening.Type: GrantFiled: June 4, 2009Date of Patent: August 14, 2012Assignee: Canon Kabushiki KaishaInventors: Hideo Saikawa, Kyosuke Toda, Keiichiro Tsukuda, Takayuki Ono
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Patent number: 8162460Abstract: An inkjet printing cartridge capable of ejecting miniaturized ink droplets in a stable manner while avoiding the complexity of the structure and control as well as suppressing the cost rise. For this purpose, the inkjet printing cartridge is formed of a material having the permeability to liquid and gas, and the ink supply path for supplying ink to the ejection opening having a relatively small ejection amount is arranged adjacent to other ink supply paths via walls.Type: GrantFiled: April 9, 2008Date of Patent: April 24, 2012Assignee: Canon Kabushiki KaishaInventors: Hiromasa Amma, Keiichiro Tsukuda
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Patent number: 8152277Abstract: The printing head has connection terminals for performing an electrical connection of signals including drive signals of print elements by contacting connection terminals in on an apparatus side when the head is mounted onto an ink jet printing apparatus. Connections of all terminals can be guaranteed by detecting contacts of a part of terminals. Among the terminals in the head, terminals whose distances from the connection terminals in the printing apparatus become maximum when a deviation occurred in the mounting are used as terminals for contact detection. For example, from among the connection terminals arranged in a planar area, which is rectangular-shaped, terminals positioned in corners are used as the terminals for the contact detection. When the contacts of these terminals are detected, the connections of all the terminals inside the area can be guaranteed.Type: GrantFiled: September 17, 2009Date of Patent: April 10, 2012Assignee: Canon Kabushiki KaishaInventors: Nobuyuki Hatasa, Kenjiro Watanabe, Kimiyuki Hayasaki, Keiichiro Tsukuda, Takuya Hatsui
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Patent number: 7984967Abstract: An ink jet head includes an elongated ink supply port extending in a longitudinal direction and a plurality of head groups arranged in a transverse direction crossing with the longitudinal direction. A first array of ink ejection outlets is disposed along one lateral side of an ink supply port, and second and third arrays of ink ejection outlets are disposed along the other lateral side of the ink supply port, wherein widths L2, measured in the longitudinal direction, of partition walls for the first array of the ink ejection outlets are larger than widths L1, measured in the longitudinal direction, of partition walls of the second and third arrays of the ink ejection outlets. The ink jet head further includes a sealing tape for protecting the ejection outlets, the sealing tape being peelable in a direction from the second or third array toward the first array.Type: GrantFiled: April 7, 2008Date of Patent: July 26, 2011Assignee: Canon Kabushiki KaishaInventors: Ken Ikegame, Keiichiro Tsukuda
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Patent number: 7959260Abstract: A method for discharging liquid from a recording head including a first discharge port configured to discharge a liquid, a second discharge port configured to discharge a liquid, an amount of which is smaller than an amount of the liquid discharged from the first discharge port, and a substrate including a first heating element corresponding to the first discharge port, a second heating element corresponding to the second discharge port and the liquid supply port, wherein a distance between the liquid supply port and the second heating element is longer than a distance between the liquid supply port and the first heating element, and wherein discharge of the liquid from the first discharge port is performed by a discharge method in which a bubble formed by the first heating element communicates with atmosphere and an amount of the liquid discharged from the second discharge port is less than 2 pico liters.Type: GrantFiled: December 18, 2007Date of Patent: June 14, 2011Assignee: Canon Kabushiki KaishaInventors: Keiichiro Tsukuda, Ken Tsuchii, Mineo Kaneko
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Patent number: D794708Type: GrantFiled: April 27, 2016Date of Patent: August 15, 2017Assignee: Canon Kabushiki KaishaInventors: Keisuke Iinuma, Tatsuo Nanjo, Keiichiro Tsukuda, Yasuo Kotaki
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Patent number: D816158Type: GrantFiled: April 25, 2016Date of Patent: April 24, 2018Inventors: Kazuya Yoshii, Yasuo Kotaki, Kenta Udagawa, Hiroshi Koshikawa, Wataru Takahashi, Koichi Kubo, Shigeki Fukui, Naozumi Nabeshima, Soji Kondo, Tatsuo Nanjo, Norihiro Ikebe, Kenichi Kanno, Keiichiro Tsukuda, Hiroki Nakanishi