Patents by Inventor Yoshinao Miyata
Yoshinao Miyata 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: 10639898Abstract: A liquid ejecting apparatus includes a head unit capable of ejecting a liquid from a nozzle provided in a nozzle surface of a nozzle plate, an anchoring plate in which the head unit is anchored and that is provided with an opening region that exposes the nozzle surface, and a wiper member that wipes an anchoring plate exposed-surface located on the opposite side of the head unit of the anchoring plate and the nozzle surface. When an angle of contact between the nozzle surface and the liquid is taken as ?n, an angle of contact between the anchoring plate exposed-surface and the liquid is taken as ?s, and an angle of contact between the wiper member and the liquid is taken as ?w, the relationship ?n>?s>?w>90° is fulfilled.Type: GrantFiled: December 19, 2018Date of Patent: May 5, 2020Assignee: Seiko Epson CorporationInventors: Shunsuke Watanabe, Yuma Fukuzawa, Katsumi Enomoto, Hiroaki Okui, Yoshinao Miyata, Satoshi Oguchi, Fujio Akahane
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Patent number: 10464321Abstract: A liquid ejecting head includes: a nozzle plate provided with nozzle openings; an actuator unit including a flow channel formation substrate in which pressure generation chambers are provided and piezoelectric actuators that cause a change in the pressure of the liquid within respective pressure generation chambers; a communication substrate in which communication channels that communicate between the pressure generation chambers and corresponding nozzle openings are provided; a first case member that is a frame member affixed to the communication substrate so that the actuator unit is disposed within the first case member and that, along with the actuator unit, forms a manifold that holds the liquid to be supplied to the pressure generation chambers; and a second case member that is affixed to the first case member and in which is formed an introduction channel that sends the liquid from the exterior to the manifold.Type: GrantFiled: July 31, 2018Date of Patent: November 5, 2019Assignee: Seiko Epson CorporationInventor: Yoshinao Miyata
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Publication number: 20190143701Abstract: Provided is a liquid ejecting apparatus capable of suppressing ink from remaining on a nozzle surface. A liquid ejecting apparatus includes a head unit 16 capable of ejecting a liquid from a nozzle 27 provided in a nozzle surface 22a of a nozzle plate 22, an anchoring plate 17 in which the head unit 16 is anchored and that is provided with an opening region 17a that exposes the nozzle surface 22, and a wiper member 12 that wipes an anchoring plate exposed-surface 17b located on the opposite side of the head unit 16 of the anchoring plate 17 and the nozzle surface 22a. When an angle of contact between the nozzle surface 22a and the liquid is taken as ?n, an angle of contact between the anchoring plate exposed-surface 17b and the liquid is taken as ?s, and an angle of contact between the wiper member 12 and the liquid is taken as ?w, the relationship ?n>?s>?w>90° is fulfilled.Type: ApplicationFiled: December 19, 2018Publication date: May 16, 2019Inventors: Shunsuke WATANABE, Yuma FUKUZAWA, Katsumi ENOMOTO, Hiroaki OKUI, Yoshinao MIYATA, Satoshi OGUCHI, Fujio AKAHANE
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Patent number: 10195858Abstract: Provided is a liquid ejecting apparatus capable of suppressing ink from remaining on a nozzle surface. A liquid ejecting apparatus includes a head unit 16 capable of ejecting a liquid from a nozzle 27 provided in a nozzle surface 22a of a nozzle plate 22, an anchoring plate 17 in which the head unit 16 is anchored and that is provided with an opening region 17a that exposes the nozzle surface 22, and a wiper member 12 that wipes an anchoring plate exposed-surface 17b located on the opposite side of the head unit 16 of the anchoring plate 17 and the nozzle surface 22a. When an angle of contact between the nozzle surface 22a and the liquid is taken as ?n, an angle of contact between the anchoring plate exposed-surface 17b and the liquid is taken as ?s, and an angle of contact between the wiper member 12 and the liquid is taken as ?w, the relationship ?n>?s>?w>90° is fulfilled.Type: GrantFiled: November 22, 2016Date of Patent: February 5, 2019Assignee: Seiko Epson CorporationInventors: Shunsuke Watanabe, Yuma Fukuzawa, Katsumi Enomoto, Hiroaki Okui, Yoshinao Miyata, Satoshi Oguchi, Fujio Akahane
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Publication number: 20180339512Abstract: A liquid ejecting head includes: a nozzle plate provided with nozzle openings; an actuator unit including a flow channel formation substrate in which pressure generation chambers are provided and piezoelectric actuators that cause a change in the pressure of the liquid within respective pressure generation chambers; a communication substrate in which communication channels that communicate between the pressure generation chambers and corresponding nozzle openings are provided; a first case member that is a frame member affixed to the communication substrate so that the actuator unit is disposed within the first case member and that, along with the actuator unit, forms a manifold that holds the liquid to be supplied to the pressure generation chambers; and a second case member that is affixed to the first case member and in which is formed an introduction channel that sends the liquid from the exterior to the manifold.Type: ApplicationFiled: July 31, 2018Publication date: November 29, 2018Inventor: Yoshinao MIYATA
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Patent number: 10065424Abstract: A liquid ejecting head includes: a nozzle plate provided with nozzle openings; an actuator unit including a flow channel formation substrate in which pressure generation chambers are provided and piezoelectric actuators that cause a change in the pressure of the liquid within respective pressure generation chambers; a communication substrate in which communication channels that communicate between the pressure generation chambers and corresponding nozzle openings are provided; a first case member that is a frame member affixed to the communication substrate so that the actuator unit is disposed within the first case member and that, along with the actuator unit, forms a manifold that holds the liquid to be supplied to the pressure generation chambers; and a second case member that is affixed to the first case member and in which is formed an introduction channel that sends the liquid from the exterior to the manifold.Type: GrantFiled: May 3, 2017Date of Patent: September 4, 2018Assignee: Seiko Epson CorporationInventor: Yoshinao Miyata
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Patent number: 9873249Abstract: A liquid ejecting head comprises a unit head bonded to a communication substrate. Liquid chamber forming portions are formed in the unit case, along a first direction at positions that are separated by a partition wall. Empty liquid chamber portions and supply-side communication paths are formed in the communication substrate. The supply-side communication paths include a common communication path formed in an opposite side with a thin thickness portion left in the surface side of the communication substrate, and individual communication paths. With a surface of the partition wall and a surface of the thin thickness portion bonded together, the empty liquid chamber forming portions and the empty liquid chamber portions communicate with each other so as to define common liquid chambers.Type: GrantFiled: May 11, 2016Date of Patent: January 23, 2018Assignee: Seiko Epson CorporationInventors: Shunsuke Watanabe, Yoshinao Miyata, Satoshi Oguchi, Hiroaki Okui
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Patent number: 9827773Abstract: A cartridge 4 has liquid supply ports 407b, 407c, 407y and 407m formed on a bottom wall 422 of a casing 420 and configured to be in contact with corresponding liquid introducing parts 710b, 710c, 710y and 710m of a carriage 8. An engagement part 405 is provided on a mounting structure 411 and extends out from a second end wall surface portion 423b of a first end wall 423 intersecting with bottom wall 422. The engagement part is configured to engage the carriage 8. In a plan view of bottom wall 422 of cartridge 4 in a first direction toward bottom wall 422, the distance between a second end wall 424 and a first end wall surface portion 423a of first end wall 423 is set to be greater than the distance between the second end wall 424 and the second end wall surface portion 423b.Type: GrantFiled: January 4, 2017Date of Patent: November 28, 2017Assignee: Seiko Epson CorporationInventors: Tadahiro Mizutani, Atsushi Kobayashi, Yoshinao Miyata, Shun Oya
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Patent number: 9821342Abstract: Provided is an ultrasonic sensor including a piezoelectric elements arranged along a first direction and a second direction on a vibration plate, an insulation layer, and conductive lines. Each piezoelectric element including a first electrode, a piezoelectric layer, and a second electrode. The first electrode is partially removed in a regions between the piezoelectric elements. The second electrode is a separate electrode provided for each piezoelectric element. The insulation layer covers the second electrodes and has holes through which portions at opposite ends of the second electrodes along the first direction are partially exposed. Each conductive line is provided between adjacent ones of the second electrodes along the first direction and electrically connects, via the holes, the adjacent ones of the second electrodes.Type: GrantFiled: December 24, 2014Date of Patent: November 21, 2017Assignee: Seiko Epson CorporationInventors: Chikara Kojima, Koji Ohashi, Yoshinao Miyata
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Publication number: 20170232742Abstract: A liquid ejecting head includes: a nozzle plate provided with nozzle openings; an actuator unit including a flow channel formation substrate in which pressure generation chambers are provided and piezoelectric actuators that cause a change in the pressure of the liquid within respective pressure generation chambers; a communication substrate in which communication channels that communicate between the pressure generation chambers and corresponding nozzle openings are provided; a first case member that is a frame member affixed to the communication substrate so that the actuator unit is disposed within the first case member and that, along with the actuator unit, forms a manifold that holds the liquid to be supplied to the pressure generation chambers; and a second case member that is affixed to the first case member and in which is formed an introduction channel that sends the liquid from the exterior to the manifold.Type: ApplicationFiled: May 3, 2017Publication date: August 17, 2017Inventor: Yoshinao MIYATA
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Patent number: 9676185Abstract: A liquid ejecting head includes: a nozzle plate provided with nozzle openings; an actuator unit including a flow channel formation substrate in which pressure generation chambers are provided and piezoelectric actuators that cause a change in the pressure of the liquid within respective pressure generation chambers; a communication substrate in which communication channels that communicate between the pressure generation chambers and corresponding nozzle openings are provided; a first case member that is a frame member affixed to the communication substrate so that the actuator unit is disposed within the first case member and that, along with the actuator unit, forms a manifold that holds the liquid to be supplied to the pressure generation chambers; and a second case member that is affixed to the first case member and in which is formed an introduction channel that sends the liquid from the exterior to the manifold.Type: GrantFiled: March 18, 2016Date of Patent: June 13, 2017Assignee: Seiko Epson CorporationInventor: Yoshinao Miyata
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Publication number: 20170113464Abstract: A cartridge 4 has liquid supply ports 407b, 407c, 407y and 407m formed on a bottom wall 422 of a casing 420 and configured to be in contact with corresponding liquid introducing parts 710b, 710c, 710y and 710m of a carriage 8, and a circuit substrate 410 provided on a second wall surface portion 423b of a first end wall 423 intersecting with the bottom wall 422 and configured to be in electrically contact with an electrode assembly 810 of the carriage 8. In a plan view of the bottom wall 422 of the cartridge 4 in a first direction toward the bottom wall 422, the distance between a second end wall 424 and a first wall surface portion 423a of the first end wall 423 is set to be greater than the distance between the second end wall 424 and the second wall surface portion 423b. This configuration allows for downsizing of the entire liquid supply unit such as cartridge.Type: ApplicationFiled: January 4, 2017Publication date: April 27, 2017Inventors: Tadahiro Mizutani, Atsushi Kobayashi, Yoshinao Miyata, Shun Oya
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Patent number: 9610770Abstract: Provided is a liquid ejecting head including a pressure chamber forming substrate for forming a pressure chamber which is filled with liquid, a nozzle through which the ink is ejected in a direction along the pressure chamber forming substrate, and a communication flow path which allows the pressure chamber to communicate with the nozzle. The nozzle and the communication flow path are formed in the pressure chamber forming substrate.Type: GrantFiled: January 12, 2015Date of Patent: April 4, 2017Assignee: Seiko Epson CorporationInventors: Yoichi Naganuma, Yoshinao Miyata, Eiju Hirai, Motoki Takabe
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Publication number: 20170085031Abstract: There is provided a terminal connection assembly. The terminal connection assembly comprises terminals configured to be electrically connectable with an apparatus-side terminal assembly of a printing apparatus; contact regions where the apparatus-side terminal assembly is in contact with the terminals; a substrate on which the terminals are provided; a supporting structure configured to support the substrate; and convexes configured to restrict motion of a positioning structure of the printing apparatus in an intersecting direction that intersects with a mounting direction in which the terminal connection assembly is mounted. In the state that the terminal connection assembly is mounted to the printing apparatus, a plurality of the contact regions are arranged to form a plurality of lines arrayed at predetermined intervals in the mounting direction. A virtual plane passing through the plurality of contact regions is inclined to the mounting direction.Type: ApplicationFiled: September 13, 2016Publication date: March 23, 2017Inventors: Taku Ishizawa, Hiroyuki Kawate, Yoshinao Miyata
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Publication number: 20170072696Abstract: Provided is a liquid ejecting apparatus capable of suppressing ink from remaining on a nozzle surface. A liquid ejecting apparatus includes a head unit 16 capable of ejecting a liquid from a nozzle 27 provided in a nozzle surface 22a of a nozzle plate 22, an anchoring plate 17 in which the head unit 16 is anchored and that is provided with an opening region 17a that exposes the nozzle surface 22, and a wiper member 12 that wipes an anchoring plate exposed-surface 17b located on the opposite side of the head unit 16 of the anchoring plate 17 and the nozzle surface 22a. When an angle of contact between the nozzle surface 22a and the liquid is taken as ?n, an angle of contact between the anchoring plate exposed-surface 17b and the liquid is taken as ?s, and an angle of contact between the wiper member 12 and the liquid is taken as ?w, the relationship ?n>?s>?w>90° is fulfilled.Type: ApplicationFiled: November 22, 2016Publication date: March 16, 2017Inventors: Shunsuke WATANABE, Yuma FUKUZAWA, Katsumi ENOMOTO, Hiroaki OKUI, Yoshinao MIYATA, Satoshi OGUCHI, Fujio AKAHANE
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Patent number: 9566794Abstract: A cartridge 4 has liquid supply ports 407b, 407c, 407y and 407m formed on a bottom wall 422 of a casing 420 and configured to be in contact with corresponding liquid introducing parts 710b, 710c, 710y and 710m of a carriage 8, and a circuit substrate 410 provided on a second wall surface portion 423b of a first end wall 423 intersecting with the bottom wall 422 and configured to be in electrically contact with an electrode assembly 810 of the carriage 8. In a plan view of the bottom wall 422 of the cartridge 4 in a first direction toward the bottom wall 422, the distance between a second end wall 424 and a first wall surface portion 423a of the first end wall 423 is set to be greater than the distance between the second end wall 424 and the second wall surface portion 423b.Type: GrantFiled: March 11, 2015Date of Patent: February 14, 2017Assignee: Seiko Epson CorporationInventors: Tadahiro Mizutani, Atsushi Kobayashi, Yoshinao Miyata, Shun Oya
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Patent number: 9533505Abstract: Provided is a liquid ejecting apparatus capable of suppressing ink from remaining on a nozzle surface. A liquid ejecting apparatus includes a head unit 16 capable of ejecting a liquid from a nozzle 27 provided in a nozzle surface 22a of a nozzle plate 22, an anchoring plate 17 in which the head unit 16 is anchored and that is provided with an opening region 17a that exposes the nozzle surface 22, and a wiper member 12 that wipes an anchoring plate exposed-surface 17b located on the opposite side of the head unit 16 of the anchoring plate 17 and the nozzle surface 22a. When an angle of contact between the nozzle surface 22a and the liquid is taken as ?n, an angle of contact between the anchoring plate exposed-surface 17b and the liquid is taken as ?s, and an angle of contact between the wiper member 12 and the liquid is taken as ?w, the relationship ?n>?s>?w>90° is fulfilled.Type: GrantFiled: August 19, 2015Date of Patent: January 3, 2017Assignee: Seiko Epson CorporationInventors: Shunsuke Watanabe, Yuma Fukuzawa, Katsumi Enomoto, Hiroaki Okui, Yoshinao Miyata, Satoshi Oguchi, Fujio Akahane
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Patent number: 9434162Abstract: A liquid ejecting head includes a pressure chamber forming substrate that forms a pressure chamber filled with ink, a nozzle that ejects the ink in a Z direction along the pressure chamber forming substrate, and a communicating flow path that allows the pressure chamber to communicate with the nozzle, in which the communicating flow path includes a first flow path along a Y direction intersecting the Z direction.Type: GrantFiled: November 24, 2014Date of Patent: September 6, 2016Assignee: Seiko Epson CorporationInventors: Yoshinao Miyata, Eiju Hirai, Motoki Takabe, Yoichi Naganuma
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Publication number: 20160250852Abstract: A liquid ejecting head comprises a unit head bonded to a communication substrate. Liquid chamber forming portions are formed in the unit case, along a first direction at positions that are separated by a partition wall. Empty liquid chamber portions and supply-side communication paths are formed in the communication substrate. The supply-side communication paths include a common communication path formed in an opposite side with a thin thickness portion left in the surface side of the communication substrate, and individual communication paths. With a surface of the partition wall and a surface of the thin thickness portion bonded together, the empty liquid chamber forming portions and the empty liquid chamber portions communicate with each other so as to define common liquid chambers.Type: ApplicationFiled: May 11, 2016Publication date: September 1, 2016Inventors: Shunsuke Watanabe, Yoshinao Miyata, Satoshi Oguchi, Hiroaki Okui
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Publication number: 20160200101Abstract: A liquid ejecting head includes: a nozzle plate provided with nozzle openings; an actuator unit including a flow channel formation substrate in which pressure generation chambers are provided and piezoelectric actuators that cause a change in the pressure of the liquid within respective pressure generation chambers; a communication substrate in which communication channels that communicate between the pressure generation chambers and corresponding nozzle openings are provided; a first case member that is a frame member affixed to the communication substrate so that the actuator unit is disposed within the first case member and that, along with the actuator unit, forms a manifold that holds the liquid to be supplied to the pressure generation chambers; and a second case member that is affixed to the first case member and in which is formed an introduction channel that sends the liquid from the exterior to the manifold.Type: ApplicationFiled: March 18, 2016Publication date: July 14, 2016Inventor: Yoshinao MIYATA