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公开(公告)号：US10427400B2
公开(公告)日：2019-10-01
申请号：US15837470
申请日：2017-12-11
Applicant: CANON KABUSHIKI KAISHA
Inventor： Hidenori Yamato , Hideo Kanno , Masataka Sakurai , Ryo Kasai , Kengo Umeda
IPC: B41J2/045
Abstract: A printhead comprises a printing element, a driving circuit configured to drive the printing element, an analog signal processing circuit configured to process one or more analog signals, a bias circuit configured to supply a bias voltage to the analog signal processing circuit, and a control terminal to which a control signal is inputted. In a state in which the analog signal processing circuit and the bias circuit are receiving a supply of power, it is possible to switch starting and stopping of at least one of the analog signal processing circuit and the bias circuit based on the control signal.
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公开(公告)号：US10322578B2
公开(公告)日：2019-06-18
申请号：US16006325
申请日：2018-06-12
Applicant: CANON KABUSHIKI KAISHA
Inventor： Tomoko Kudo , Takaaki Yamaguchi , Keiji Tomizawa , Masaki Oikawa , Yoshihiro Hamada , Masataka Sakurai
Abstract: A liquid ejection head includes a substrate including an electrically insulating film, an energy generating element provided on the substrate and configured to generate energy used to eject a liquid, a flow path formed through the substrate and communicating with an ejection port configured to eject a liquid, and a wiring layer formed in the electrically insulating film of the substrate, used to drive the energy generating element, provided apart from a wall defining the flow path, and provided to surround the flow path in a plan view of the substrate.
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公开(公告)号：US10035346B2
公开(公告)日：2018-07-31
申请号：US15000544
申请日：2016-01-19
Applicant: CANON KABUSHIKI KAISHA
Inventor： Ryo Kasai , Nobuyuki Hirayama , Masataka Sakurai , Kengo Umeda , Hidenori Yamato , Makoto Takagi , Tatsuhito Goden , Sadayoshi Sakuma , Nobuyuki Suzuki , Toru Eto
IPC: B41J2/14
CPC classification number: B41J2/14072 , B41J2/14129 , B41J2202/03 , B41J2202/11 , B41J2202/18
Abstract: An element substrate of a liquid ejection head includes: a base material; an insulating film positioned on the base material; a heating resistance element for generating heat energy for ejecting a liquid; a protective film for covering the heating resistance element; a first electrical wiring layer arranged in the insulating film, for supplying a current to the heating resistance element; a second electrical wiring layer arranged on a layer different from the first electrical wiring layer in the insulating film, for supplying a current to the heating resistance element; and at least one connecting member extending into the insulating film to connect the first electrical wiring layer and the heating resistance element, for causing the current to flow in a first direction, the heating resistance element including a connecting region, extending in a second direction intersecting the first direction, to which the at least one connecting member is connected.
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公开(公告)号：US20180194133A1
公开(公告)日：2018-07-12
申请号：US15837470
申请日：2017-12-11
Applicant: CANON KABUSHIKI KAISHA
Inventor： Hidenori Yamato , Hideo Kanno , Masataka Sakurai , Ryo Kasai , Kengo Umeda
IPC: B41J2/045
CPC classification number: B41J2/04548 , B41J2/04518 , B41J2/04541 , B41J2/04563 , B41J2/04565 , B41J2/0458
Abstract: A printhead comprises: a printing element; a driving circuit configured to drive the printing element; an analog signal processing circuit configured to process one or more analog signals; a bias circuit configured to supply a bias voltage to the analog signal processing circuit; and a control terminal to which a control signal is inputted, wherein, in a state where the analog signal processing circuit and the bias circuit are receiving a supply of power, it is possible to switch starting and stopping of at least one of the analog signal processing circuit and the bias circuit based on the control signal.
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公开(公告)号：US20170341377A1
公开(公告)日：2017-11-30
申请号：US15601848
申请日：2017-05-22
Applicant: CANON KABUSHIKI KAISHA
Inventor： Masataka Sakurai , Nobuyuki Hirayama , Ryo Kasai , Kengo Umeda , Hidenori Yamato , Masanobu Ohmura , Tatsuhito Goden
CPC classification number: B41J2/04541 , B41J2/05 , B41J2/14032 , B41J2/14072 , B41J2/33535 , B41J2002/14459 , B41J2202/12
Abstract: A recording element substrate includes a substrate, a plurality of energy generating elements arranged on the substrate to form an element row, a plurality of supply ports arranged along the element row to form a supply port row, and a plurality of supply paths extending from the plurality of supply ports along the thickness direction of the substrate, wherein a plurality of beam portions disposed between adjacent supply ports in the direction of the supply port row has a plurality of conductor layers in which a conductor layer including a power supply conductor connected to the energy generating elements and a conductor layer including a ground conductor connected to the energy generating elements, are stacked along the thickness direction of the substrate, and wherein at least one of the plurality of conductor layers is occupied by one power supply conductor or one ground conductor.
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Patent Agency Ranking
公开(公告)号：US20160297199A1
公开(公告)日：2016-10-13
申请号：US15089979
申请日：2016-04-04
Applicant: CANON KABUSHIKI KAISHA
Inventor： Takayuki Sekine , Yoshiyuki Nakagawa , Masataka Sakurai
IPC: B41J2/14
CPC classification number: B41J2/14129 , B41J2/1408 , B41J2/14088 , B41J2202/08 , B41J2202/12
Abstract: The liquid ejection head having at least one energy generation element for generating heat to be used for ejecting a liquid includes: an insulating layer which is provided in contact with a substrate and supports the energy generation element; at least one heat transmitting layer which is composed of a material having a higher thermal conductivity than that of a material of the insulating layer and which is provided, in the insulating layer, between the energy generation element and the substrate; and a heat transmitting member which thermally connects the at least one heat transmitting layer and the substrate, wherein the heat transmitting member is connected to an area, on the heat transmitting layer, excluding an area directly below the energy generation element in a position interposed between the energy generation element and the substrate.
Abstract translation: 具有用于产生用于喷射液体的热量的至少一个能量产生元件的液体喷射头包括：绝缘层，其设置成与基底接触并支撑能量产生元件; 至少一个传热层，其由具有比所述绝缘层的材料的导热性高的材料构成，并且在所述绝缘层中设置在所述能量产生元件和所述基板之间; 以及热传递构件，其将所述至少一个传热层和所述基板热连接，其中所述传热构件连接到所述传热层上的除了所述能量产生元件正下方的区域之间的区域，所述区域介于 能量产生元件和衬底。
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公开(公告)号：US10350884B2
公开(公告)日：2019-07-16
申请号：US15936664
申请日：2018-03-27
Applicant: CANON KABUSHIKI KAISHA
Inventor： Shingo Okushima , Satoshi Oikawa , Satoshi Kimura , Tatsurou Mori , Kengo Umeda , Masataka Sakurai
Abstract: There is provided an elongated liquid ejection head capable of voltage drop suppression and high-speed ejection operation. For this purpose, in each of flexible circuits electrically connecting element substrates to electrical substrates, a width Wa on a side connected to the electrical substrate is smaller than the width of another area.
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公开(公告)号：US10286661B2
公开(公告)日：2019-05-14
申请号：US15792391
申请日：2017-10-24
Applicant: CANON KABUSHIKI KAISHA
Inventor： Shintaro Kasai , Yoshiyuki Nakagawa , Akira Shibasaki , Masataka Sakurai , Ken Tsuchii , Akiko Hammura , Tatsurou Mori , Shinji Kishikawa
Abstract: Disclosed is a liquid discharge method of discharging liquid with a liquid discharge head having a heating surface that contacts and heats the liquid and a discharge port that faces the heating surface and discharges the liquid. The method includes heating the liquid through the heating surface to generate a bubble such that the bubble communicates with an atmosphere, thereby discharging the liquid. The liquid that is being discharged from the discharge port includes a trailing portion. The trailing portion moves toward the heating surface in response to a reduction in volume of the bubble and contacts the heating surface. The method further includes heating the trailing portion through the heating surface while the trailing portion is in contact with the heating surface, thereby generating a bubble.
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公开(公告)号：US20180345668A1
公开(公告)日：2018-12-06
申请号：US15992651
申请日：2018-05-30
Applicant: CANON KABUSHIKI KAISHA
Inventor： Keiji Tomizawa , Masataka Sakurai , Akiko Hammura
IPC: B41J2/14
CPC classification number: B41J2/14129 , B41J2/1404 , B41J2/14072 , B41J2/1412 , B41J2202/18
Abstract: A liquid ejection head includes a substrate, a heat generating resistor element arranged on the substrate and a flow channel forming member for forming a flow channel. The flow channel forming member has a side wall surrounding at least part of the heat generating resistor element. The heat generating resistor element has a pair of oppositely disposed sides and a pair of electrical connection regions which extend along the respective ones of the pair of sides and are separated from the respective ones of the pair of sides by a distance. The side wall has at least one concave corner which is comprised of a curved surface or a surface extending obliquely to the pair of sides and the heat generating resistor element has at least one convex corner which faces the at least one concave corner of the side wall and is rounded or chamfered.
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公开(公告)号：US20170182771A1
公开(公告)日：2017-06-29
申请号：US15372245
申请日：2016-12-07
Applicant: CANON KABUSHIKI KAISHA
Inventor： Masataka Sakurai
IPC: B41J2/14
CPC classification number: B41J2/14088 , B41J2/14072 , B41J2002/14491 , B41J2202/20
Abstract: A liquid discharge head which discharges a liquid, includes, a substrate on which plural heaters configured to generate heat for discharging a liquid are provided, an electroconductive protective film configured to cover the plural heaters and define a group consisting of the covered plural heaters in the substrate, a discrete wiring connected with the protective film for each group in the substrate, a common wiring connected with the discrete wiring for each group in common, and a terminal connected with the common wiring and configured to electrically connect the common wiring with an outside of the substrate, wherein electrical resistance of the discrete wiring is higher than electrical resistance of the common wiring.
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