公开(公告)号：US20210229457A1

公开(公告)日：2021-07-29

申请号：US17159261

申请日：2021-01-27

Applicant: SEIKO EPSON CORPORATION

Inventor： Hiroki SATO ,  Masaaki HAGIO ,  Keigo YAMASAKI ,  Tomoyuki NAKANO

IPC: B41J2/21 ,  B41J11/00 ,  B41J2/045

Abstract: A recording head unit includes a first line head and a second line head in which nozzles are provided in an X-axis direction. The first line head is arranged on one side of the second line head in a Y-axis direction intersecting the X-axis direction. The first line head includes a first windbreak member. The second line head includes a second windbreak member. A length by which the first windbreak member protrudes is smaller than a length by which the second windbreak member protrudes.

公开(公告)号：US20200299898A1

公开(公告)日：2020-09-24

申请号：US16822158

申请日：2020-03-18

Applicant: SEIKO EPSON CORPORATION

Inventor： Yuta INAGAKI ,  Naoko OMAGARI ,  Masahide NAKAMURA ,  Keigo YAMASAKI

IPC: D21B1/08 ,  D21F9/04 ,  D04H1/732

Abstract: A defibration treatment apparatus including a feeding hole through which a material is fed, a rotator that rotates about a rotational central axis, a fixed member that covers at least a portion of the rotator, and a discharge opening that discharges a defibrated object obtained by defibrating the material between the rotator and the fixed member. In the defibration treatment apparatus, the rotator includes a plurality of rotary blades that extend in directions away from the rotational central axis, at least a portion of the fixed member is configured of a screen including a plurality of openings, the screen is disposed at a position corresponding to an outer rotational circumference of the rotator, and a discharge path in communication with the discharge opening is provided along the screen and on a side opposite the rotator with respect to the screen.

公开(公告)号：US20200094479A1

公开(公告)日：2020-03-26

申请号：US16579958

申请日：2019-09-24

Applicant: Seiko Epson Corporation

Inventor： Keigo YAMASAKI ,  Kohei YUWAKI

IPC: B29C64/314 ,  B29C64/209 ,  B29C64/241 ,  B29C64/255 ,  B29C64/245

Abstract: A plasticizing device includes: a drive motor; a rotating unit driven to rotate about a rotation axis by the drive motor and having an end surface perpendicular to the rotation axis; a barrel having a bottom surface facing the end surface of the rotating unit, and a heater; and a material supply unit supplying the material between the rotating unit and the barrel. At the bottom surface of the barrel, a first communication hole through which the molten material flows out, a first groove part coupled to the first communication hole, a second communication hole through which the molten material flows out, and a second groove part coupled to the second communication hole are formed.

公开(公告)号：US20150035910A1

公开(公告)日：2015-02-05

申请号：US14447486

申请日：2014-07-30

Applicant: SEIKO EPSON CORPORATION

Inventor： Ryota KINOSHITA ,  Shunsuke WATANABE ,  Keigo YAMASAKI

IPC: B41J2/14

CPC classification number: B41J2/14233 ,  B41J2/14201 ,  B41J2/19 ,  B41J2202/11

Abstract: A common liquid chamber that communicates with a plurality of pressure chambers includes at least one inflow port into which a liquid flows, a plurality of supply openings, arranged in a row, for supplying the liquid to each of the pressure chambers, and a slanted surface that, when viewed from a second direction that is orthogonal to an arrangement direction in which the supply openings are arranged and that follows a substrate in which the common liquid chamber is formed, is slanted so that the slanted surface overlaps with the arrangement of some of the supply openings including supply openings located at ends of the arrangement direction and approaches the arrangement of the supply openings at the end areas of the arrangement direction. At least part of the inflow port is located within the range of the arrangement of the stated some of the supply openings when viewed from the second direction. An angle of the slanted surface and a position of the inflow port are set so that a flow rate of the liquid is no less than 0.025 m/s in the vicinity of an end of the inflow port in the arrangement direction when the liquid is sucked from the nozzle openings by applying negative pressure to the nozzle openings.

Abstract translation: 与多个压力室连通的公共液体室包括至少一个流入其中的流入口，连续排列的用于将液体供应到每个压力室的多个供应开口，以及倾斜表面 当从与供给口布置的布置方向正交的第二方向观察并且在形成有公共液体室的基板之后，倾斜使得倾斜表面与一些 所述供给开口包括位于所述排列方向的端部处的供应开口，并且在所述排列方向的所述端部区域处接近所述供应开口的布置。 当从第二方向观察时，流入端口的至少一部分位于所述一些供应开口的布置的范围内。 倾斜表面的角度和流入口的位置被设定为使得当液体被吸入时在流入口端部的排列方向的端部附近液体的流速不小于0.025m / s 通过向喷嘴开口施加负压从喷嘴开口。

公开(公告)号：US20240310268A1

公开(公告)日：2024-09-19

申请号：US18603244

申请日：2024-03-13

Applicant: THINKCYTE K.K. ,  SEIKO EPSON CORPORATION

Inventor： Junichi OKAMOTO ,  Tatsunori MIYAZAWA ,  Keigo YAMASAKI

IPC: G01N15/1434 ,  G01N15/10

CPC classification number: G01N15/1404 ,  G01N2015/1006

Abstract: An observation chip 1 includes: a plurality of substrates 10 stacked in a thickness direction Z of the substrates; a first channel 25 extending along a first axis O1 along the substrates; a surrounding channel 30 surrounding the first channel all around in a cross section orthogonal to the first axis in the first channel from an end of the first channel to an overall merging point P2 of the first channel, integrated with the first channel, and forming a second channel 55 that extends along a second axis O2 along the substrates; and an observation section 60 provided on a side farther away from the first channel than the overall merging point in the second channel, and transmitting electromagnetic waves from outside to the second channel. A length of the second channel in the thickness direction is constant from the overall merging point to the observation section.

公开(公告)号：US20230383463A1

公开(公告)日：2023-11-30

申请号：US18322628

申请日：2023-05-24

Applicant: SEIKO EPSON CORPORATION

Inventor： Hirofumi NAKATA ,  Yuka KATO ,  Hirokazu YAMAGA ,  Shigeo FUJITA ,  Keigo YAMASAKI

IPC: D21F1/06 ,  D21G9/00

CPC classification number: D21F1/06 ,  D21G9/0027

Abstract: A sheet manufacturing apparatus includes a pipe that supplies a material containing fibers, a supply direction change section that changes a movement direction of the material supplied from the pipe, a reducer section that is disposed downstream of the supply direction change section and decreases a movement speed of the material, and an accumulation section that is disposed downstream of the reducer section and accumulates the material to form a web.

公开(公告)号：US20200094476A1

公开(公告)日：2020-03-26

申请号：US16581803

申请日：2019-09-25

Applicant: Seiko Epson Corporation

Inventor： Keigo YAMASAKI ,  Kohei YUWAKI

IPC: B29C64/209 ,  B29C64/227 ,  B29C64/295 ,  B29C64/245 ,  B29C64/255

Abstract: Provided is a three-dimensional modeling apparatus including: a drive motor; a screw that has a groove formation surface with a groove formed therein and that is rotated by the drive motor; a barrel that has a facing surface facing the groove formation surface and having a communication hole at the center thereof and a heater; and a nozzle that ejects a modeling material supplied from the communication hole, in which 0.03≤(Ss/Ls)/(Sn/Ln)≤5.00   (1) where Ss is an average sectional area that is an arithmetic mean between a maximum sectional area and a minimum sectional area of the groove, Ls is a length of the groove, Sn is a sectional area of the nozzle, and Ln is a length of the nozzle.

公开(公告)号：US20190301092A1

公开(公告)日：2019-10-03

申请号：US16366080

申请日：2019-03-27

Applicant: SEIKO EPSON CORPORATION

Inventor： Keigo YAMASAKI

IPC: D21B1/08 ,  D21B1/06

Abstract: A defibration processing device is capable of efficient defibration in a multiple stage rotating part, and a fibrous feedstock recycling device. The defibration processing device has a first rotating part disposed on a side into which defibration feedstock flows, and a second rotating part disposed on a side to which defibrated material defibrated in the first rotating part is discharged. The first rotating part and second rotating part each have on the axis of rotation side thereof a base, and a protruding part protruding from the base in a direction away from the axis of rotation. A spacer is between the first rotating part and second rotating part. An external restriction plate protrudes from the stationary part side toward the spacer, and an internal restriction plate protrudes from the axis of rotation side of the first rotating part and second rotating part toward the stationary part.

公开(公告)号：US20160075141A1

公开(公告)日：2016-03-17

申请号：US14849843

申请日：2015-09-10

Applicant: SEIKO EPSON CORPORATION

Inventor： Keigo YAMASAKI ,  Yutaka KOBAYASHI

IPC: B41J2/175

CPC classification number: B41J2/175 ,  B41J2/14233 ,  B41J2002/14241 ,  B41J2002/14362 ,  B41J2002/14419 ,  B41J2002/14467

Abstract: A flow path member includes a liquid flow path which includes a flow path inlet portion which has a first inlet port and a second inlet port, and a flow path outlet portion which has a first outlet port communicating with the first inlet port and a second outlet port communicating with the second inlet port, in which, in the flow path inlet portion, the first inlet port and the second inlet port are aligned in a reference direction, and in which, in a flow path extending from the first inlet port to the first outlet port and a flow path extending from the second inlet port to the second outlet port, at least parts of the flow paths, in terms of the lengths of the respective flow paths, are disposed in a direction different from the reference direction.

Abstract translation: 流路构件包括具有第一入口和第二入口的流路入口部的液体流动路径，以及具有与第一入口连通的第一出口和流路出口部， 与第二入口连通的端口，其中在流路入口部分中，第一入口端口和第二入口端口在参考方向上对准，并且其中在从第一入口端口延伸到 第一出口和从第二入口延伸到第二出口的流路，至少部分流路相对于各个流路的长度设置在与基准方向不同的方向上。

公开(公告)号：US20150042721A1

公开(公告)日：2015-02-12

申请号：US14451804

申请日：2014-08-05

Applicant: SEIKO EPSON CORPORATION

Inventor： Takashi MANO ,  Ryo OGUCHI ,  Keigo YAMASAKI

IPC: B41J2/165

CPC classification number: B41J2/16541 ,  B41J2/16538

Abstract: A liquid ejection apparatus includes a liquid ejection unit including a nozzle formation surface in which an opening of a nozzle for ejecting liquid is formed; a wiper disposed so that the wiper can come in contact with the nozzle formation surface; and a liquid collection portion, which is capable of collecting liquid adhered to the wiper, disposed on an end side of the nozzle formation surface of the liquid ejection unit so as to be spaced apart from the nozzle formation surface in a wiping direction. The liquid collection portion includes a scraper having a scraping surface that scrapes off the liquid adhered to the wiper by coming in contact with the wiper, and a liquid absorbing material disposed at a position that does not come in contact with the wiper and at a position that comes in contact with an end portion of the scraping surface.

Abstract translation: 液体喷射装置包括：液体喷射单元，包括喷嘴形成表面，其中形成用于喷射液体的喷嘴的开口; 擦拭器布置成使得擦拭器可以与喷嘴形成表面接触; 以及液体收集部，其能够收集设置在所述液体喷射单元的喷嘴形成面的端侧的与所述擦拭器附着的液体，以与所述喷嘴形成面沿擦拭方向间隔开。 液体收集部分包括具有刮擦表面的刮刀，该刮擦表面通过与擦拭器接触而刮擦粘附到擦拭器上的液体;以及液体吸收材料，其设置在不与擦拭器接触的位置处， 其与刮削表面的端部接触。