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公开(公告)号：US10427404B2
公开(公告)日：2019-10-01
申请号：US15883837
申请日：2018-01-30
Applicant: SII Printek Inc.
Inventor： Yuzuru Kubota , Daichi Nishikawa
IPC: B41J2/14 , B41J2/16 , B41J2/145 , B41J2/155 , H01L41/047 , H01L41/09 , H01L41/187 , H01L41/29 , H01L41/332 , H01L41/338
Abstract: According to an embodiment, a liquid ejecting head chip includes an actuator plate, a cover plate, a common electrode, and a connection wiring. In the actuator plate, a plurality of discharge channels and a plurality of non-discharge channels which extend in a Z-direction are alternately arranged at a distance in an X-direction. The cover plate is stacked on an AP-side-Y-direction inner side surface, so as to close the plurality of discharge channels and the plurality of non-discharge channels. The common electrode is formed on an inner surface of each of the discharge channels. The connection wiring is divided so as to be formed in at least 3 or more places in the X-direction on the cover plate, and the common electrode connects the connection wiring to the flexible substrate.
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公开(公告)号：US10336067B2
公开(公告)日：2019-07-02
申请号：US15838854
申请日：2017-12-12
Applicant: SII Printek Inc.
Inventor： Takayuki Shimizu , Toshiaki Watanabe
Abstract: An ejection volume of a liquid can more finely be adjusted without lowering the ejection speed. The liquid jet head includes a plurality of nozzles adapted to jet the liquid, a piezoelectric actuator having a plurality of pressure chambers corresponding respectively to the nozzles and filled with the liquid, and adapted to vary a capacity of each of the pressure chambers, and a control section adapted to apply a pulse signal to the piezoelectric actuator to thereby expand and contract the capacity of the pressure chamber so as to jet the liquid with which the pressure chamber is filled. The control section generates a drive waveform including a plurality of the pulse signals adapted to expand the capacity of the pressure chamber, and sets a crest value of either of the pulse signals other than the pulse signal applied last to a different value from a crest value of another of the pulse signals in the drive waveform.
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公开(公告)号：US20190143686A1
公开(公告)日：2019-05-16
申请号：US16189330
申请日：2018-11-13
Applicant: SII Printek Inc.
Inventor： Masakazu HIRATA , Kenji TAKANO , Emiko OSAKA
IPC: B41J2/14
Abstract: Provided herein are a jet hole plate, a liquid jet head, and a liquid jet recording apparatus that can achieve a long life. A jet hole plate according to an embodiment of the present disclosure is a jet hole plate for use in a liquid jet head. The jet hole plate includes a metal substrate provided with a plurality of jet holes. In the metal substrate, an average crystal grain size in outlet edges of the jet holes is smaller than that in surrounding regions around the outlet edges.
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公开(公告)号：US20190143683A1
公开(公告)日：2019-05-16
申请号：US16186983
申请日：2018-11-12
Applicant: SII Printek Inc.
Inventor： Daichi NISHIKAWA , Misaki KOBAYASHI , Tomoki KAMEYAMA
IPC: B41J2/14
CPC classification number: B41J2/1433 , B41J2/14072 , B41J2/14209 , B41J2002/14491
Abstract: There are provided a head chip, a liquid jet head, and a liquid jet recording device capable of enhancing the reliability. The head chip according to an embodiment of the disclosure is a head chip adapted to jet liquid including an actuator plate having a plurality of ejection grooves and a plurality of non-ejection grooves alternately arranged in parallel to each other along a first direction and each extending in a second direction crossing the first direction, and a nozzle plate having a plurality of nozzle holes individually communicated with the plurality of ejection grooves, and to be bonded to the actuator plate. The non-ejection grooves each partially open in a bonding surface of the actuator plate with the nozzle plate.
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公开(公告)号：US20190134976A1
公开(公告)日：2019-05-09
申请号：US16181653
申请日：2018-11-06
Applicant: SII Printek Inc.
Inventor： Naohiro TOMITA , Yuki YAMAMURA , Masaru MIDORIKAWA , Shuji SATO , Shunsuke YAMAZAKI
CPC classification number: B41J2/04541 , B41J2/04586 , B41J2/14209 , B41J2/1433 , B41J2002/14362 , B41J2002/14491 , B41J2202/12
Abstract: There are provided a liquid jet head and a liquid jet recording device capable of enhancing the reliability. A liquid jet head according to an embodiment of the disclosure includes a liquid jet section from which liquid is jetted, an electronic control section electrically connected to the liquid jet section, a main protective member adapted to cover a periphery of the electronic control section, a connection section attached to the electronic control section and adapted to electrically connect an outside of the liquid jet head and the electronic control section to each other, and a connection section protective member configured so as to make a state transition between a protection state of covering the connection section and an exposure state of exposing the connection section.
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Patent Agency Ranking
公开(公告)号：US20190126650A1
公开(公告)日：2019-05-02
申请号：US16176648
申请日：2018-10-31
Applicant: SII Printek Inc.
Inventor： Yuki YAMAMURA , Masaru MIDORIKAWA , Naohiro TOMITA , Shunsuke YAMAZAKI , Shuji SATO
IPC: B41J29/377 , B41J2/175
Abstract: A liquid jet head and a liquid jet recording device capable of accurately detecting the temperature of the ink are provided. A liquid jet head according to an embodiment of the disclosure includes a flow channel member provided with a flow channel of a liquid, and having a high heat conduction part disposed so as to have contact with the liquid flowing inside the flow channel, and a low heat conduction part having lower thermal conductivity than thermal conductivity of the high heat conduction part, a temperature detection element disposed outside the flow channel, and attached to the high heat conduction part, and a liquid jet section from which the liquid is jetted.
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公开(公告)号：US20190009568A1
公开(公告)日：2019-01-10
申请号：US16029098
申请日：2018-07-06
Applicant: SII Printek Inc.
Inventor： Takanori KOYANO , Kazuyoshi TOMINAGA , Atsushi KOZUKI , Kenji SUZUKI , Masaki MIYAGI , Yuichiro HAMANO
Abstract: There are provided a flow channel member, a liquid jet head, and a liquid jet device which prevent generation of bubbles in an ink flow channel, and are excellent in ejection performance. There is included a first flow channel plate provided with a first ink flow channel adapted to communicate an ink tank and a first head chip with each other, the first ink flow channel includes a narrow flow channel located on an upstream side, a filtration flow channel located on a downstream side with respect to the narrow flow channel, and a connecting flow channel adapted to connect the narrow flow channel and the filtration flow channel to each other, and the connecting flow channel gradually increases in flow channel width in a direction from the upstream side toward the downstream side, and decreases in flow channel depth in the direction from the upstream side toward the downstream side.
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公开(公告)号：US10059104B2
公开(公告)日：2018-08-28
申请号：US15704755
申请日：2017-09-14
Applicant: SII Printek Inc.
Inventor： Shunsuke Yamazaki , Naohiro Tomita
CPC classification number: B41J2/1433 , B41J2/1623 , B41J2002/14362 , B41J2202/19
Abstract: There is provided a liquid jet head capable of preventing a damage of an actuator plate without degrading the quality of characters and images to be recorded on a recording medium. The liquid jet head includes a nozzle plate, an actuator plate provided with an exposed area exposed from the nozzle plate, a nozzle guard provided with an opening section, and a bonding layer disposed at least between the actuator plate including the exposed area and the nozzle guard and bonding the actuator plate and the nozzle guard to each other. The nozzle guard includes a non-contact section continuing throughout an area from a place opposed to the exposed area to an inner circumferential edge of the opening section, and opposed to the actuator plate across the bonding layer, and an alignment section disposed on the opposite side to the non-contact section across the opening section, and carrying out the alignment between the nozzle plate and the nozzle guard.
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公开(公告)号：US10046563B2
公开(公告)日：2018-08-14
申请号：US15353055
申请日：2016-11-16
Applicant: SII Printek Inc.
Inventor： Hitoshi Nakayama
Abstract: A liquid jet head includes a partition separating adjacent grooves, a lower substrate fixing a lower portion of the partition, and an upper substrate installed on an upper end surface of the partition. The partition includes an electrode layer on a surface lower than the upper end surface, the electrode layer including an outer surface approximately perpendicular to the upper end surface, the outer surface continuing to the upper end surface through a first convex curved surface curving outward.
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公开(公告)号：US20180222196A1
公开(公告)日：2018-08-09
申请号：US15883812
申请日：2018-01-30
Applicant: SII Printek Inc.
Inventor： Yuzuru KUBOTA , Daichi NISHIKAWA , Daiki IROKAWA , Eriko MAEDA , Yutaka HONGO
IPC: B41J2/14
CPC classification number: B41J2/14209 , B41J2/1433 , B41J2/1609 , B41J2/1623 , B41J2/1626 , B41J2/1631 , B41J2/1632 , B41J2/1643 , B41J2002/14362 , B41J2002/14419 , B41J2002/14491 , B41J2202/12
Abstract: According to an embodiment, an ink jet head includes a pair of actuator plates, a return plate, and a flow passage plate. The pair of actuator plates are disposed to face each other in a Y-direction. In the actuator plate, a plurality of channels which extend in a Z-direction are arranged at a distance in an X-direction. The return plate is disposed on an opening end side of the channels in the pair of actuator plates. A circulation passage which communicates with the channels is formed in the return plate. The flow passage plate is disposed between the pair of actuator plates. An inlet flow passage into which an ink flows and an outlet flow passage which communicates with the circulation passage are arranged in the Z-direction.
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