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公开(公告)号：US20210129535A1
公开(公告)日：2021-05-06
申请号：US16472783
申请日：2017-12-05
Inventor： Daisuke YAMADA , Motoki TAKABE , Yasuyiikl MATSUMOTO , Yoichi NAGANUMA , Eiju HIRAI
Abstract: Provided are an MEMS device, a liquid ejecting head, a liquid ejecting apparatus, a manufacturing method of a MEMS device, a manufacturing method of a liquid ejecting head and a manufacturing method of a liquid ejecting apparatus. Provided is a MEMS device that includes a first substrate on which a flexibly deformable thin film member is laminated, a second substrate disposed at an interval with respect to the first substrate, and an adhesion layer that adheres the first substrate to the second substrate, in which an end of the thin film member extends to the outside of the end of the first substrate in an in-plane direction of the first substrate.
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公开(公告)号：US20230384990A1
公开(公告)日：2023-11-30
申请号：US18201359
申请日：2023-05-24
Applicant: SEIKO EPSON CORPORATION
Inventor： Kazushi ARUGA
IPC: G06F3/12
CPC classification number: G06F3/121 , G06F3/1234 , G06F3/1259 , G06F3/1207
Abstract: A printing system includes a printing device and a cartridge. The printing device includes a controller that controls the printing device to perform printing by executing a plurality of sequences, an error detector that detects an error that is likely to occur in one or more of the plurality of sequences, and a first storage unit in which information is recorded by the controller. The cartridge includes a cartridge storage unit in which information is recorded by the controller in a state in which the cartridge is attached to the printing device. The controller records, in the first storage unit, numbers and results of a plurality of sequences. When the error is detected, the controller records numbers of a predetermined number of sequences including the latest sequenced among the numbers of the sequences recorded in the first storage unit.
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公开(公告)号：US20190072244A1
公开(公告)日：2019-03-07
申请号：US15767120
申请日：2016-10-14
Applicant: SEIKO EPSON CORPORATION
Inventor： Tomoharu MASUDA
Abstract: A projector includes: an illumination device; first color separation device that separates first and second color light from light emitted from the illumination device; second color separation device that separates third and fourth color light from the second color light; plurality of light modulation devices that modulate the lights separated by the first and second devices; projection optical device that projects an image based on the modulated lights; first and second filters provided on optical paths of the third and fourth color lights, respectively. A wavelength of the third color light is shorter than that of the fourth. The first filter attenuates light at a wavelength exceeding a first threshold set in a dimming wavelength region between a wavelength region of the third and fourth color lights. The second filter attenuates light at a wavelength equal to or less than a second threshold set in the dimming wavelength region.
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公开(公告)号：US20230176343A1
公开(公告)日：2023-06-08
申请号：US18076596
申请日：2022-12-07
Applicant: SEIKO EPSON CORPORATION
Inventor： Eiji MORIKUNI
CPC classification number: G02B13/16 , G02B17/0832
Abstract: An optical system includes a first optical system having a first optical element, and a second optical system arranged at a reduction side of the first optical system. An intermediate image is formed between the first optical system and the second optical system. The first optical element has a first reflecting surface having a concave shape. The second optical system has a first relay element, a second relay element arranged at an enlargement side of the first relay element, and a correction optical element arranged at the enlargement side of the second relay element. The first relay element has a first relay reflecting surface having a concave shape. The second relay element has a second relay reflecting surface having a convex shape. The correction optical element curves the intermediate image generated by the first and second relay elements to reduce a field curvature generated by the first optical element.
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公开(公告)号：US20200373731A1
公开(公告)日：2020-11-26
申请号：US16635216
申请日：2018-07-24
Applicant: Seiko Epson Corporation
Inventor： Takafumi NODA
Abstract: A light emitting device is provided including a switching element. The light emitting device includes a light emitting unit having a plurality of nanostructures that can emit lights with injection of currents, and a transistor provided in correspondence with the light emitting unit and controlling amounts of the currents injected in the nanostructures.
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Patent Agency Ranking
公开(公告)号：US20250065652A1
公开(公告)日：2025-02-27
申请号：US18808443
申请日：2024-08-19
Applicant: SEIKO EPSON CORPORATION
Inventor： Keita HANAWA , Manabu KONDO
IPC: B41J25/308 , B41J3/407 , B41J11/06 , B41J29/00
Abstract: A printing apparatus includes a medium support unit including a support surface configured to support a medium, a head configured to eject liquid, a first moving unit configured to move the head in a first direction, a second moving unit configured to move the head in a second direction, a position adjusting unit configured to adjust a distance between the head and the support surface, a first interference detection unit configured to detect interference with the head, and a second interference detection unit configured to detect interference with the head. The first interference detection unit and the second interference detection unit are linked to the movement of the head in the second direction. The first interference detection unit is provided further on one side than the head in the second direction. The second interference detection unit is provided further on the other side than the head in the second direction.
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公开(公告)号：US20250065651A1
公开(公告)日：2025-02-27
申请号：US18811027
申请日：2024-08-21
Applicant: SEIKO EPSON CORPORATION
Inventor： Ryuji MORIYAMA , Yuta WATANABE
IPC: B41J25/00
Abstract: A printing apparatus includes a moving mechanism configured to be movable in a front-rear direction with respect to a medium support portion that supports a printing medium, and a driving mechanism that moves the moving mechanism in the front-rear direction, wherein the moving mechanism includes a first guide shaft, a second guide shaft, a first leg portion movably supported by the first guide shaft, and a second leg portion movably supported by the second guide shaft, the driving mechanism includes a leg-driving motor and a transmission structure that transmits driving force generated by the leg-driving motor to the first leg portion and the second leg portion, and the leg driving motor is disposed between the first guide shaft and the second guide shaft in the left-right direction and drives the first leg portion and the second leg portion in the front-rear direction.
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公开(公告)号：US20250065571A1
公开(公告)日：2025-02-27
申请号：US18945657
申请日：2024-11-13
Applicant: SEIKO EPSON CORPORATION
Inventor： Akihiko TSUNOYA
IPC: B29C64/393 , B29C64/209 , B29C64/232 , B29C64/245 , B29C64/295 , B29C64/35 , B33Y10/00 , B33Y30/00 , B33Y40/00 , B33Y50/02
Abstract: A three-dimensional shaping device that shapes a three-dimensional shaped object by stacking a layer includes: a shaping table on which the three-dimensional shaped object and a quality control shaped object are shaped; an injecting unit configured to inject a shaping material of the three-dimensional shaped object and the quality control shaped object; a moving mechanism configured to move the shaping table and the injecting unit relative to each other; monitoring units configured to monitor a shaping state of the quality control shaped object; and a control unit configured to control the injecting unit, the moving mechanism, and the monitoring units to form the layer. The injecting unit injects, onto the shaping table, the solid shaping material heated into a plasticized state under the control of the control unit, and the control unit forms the layer based on monitoring results of the monitoring units.
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公开(公告)号：US20250065551A1
公开(公告)日：2025-02-27
申请号：US18813513
申请日：2024-08-23
Applicant: SEIKO EPSON CORPORATION
Inventor： Masayuki TAKAHASHI , Kakeru SASAGAWA , Ippei HONMA
IPC: B29C45/76 , B29C45/17 , B29C45/27 , B29C45/64 , B29K101/10
Abstract: An injection molding device includes a fixing section to which a molding die having a fixed molding die and a movable molding die, an injection section that injects a molding material, and a moving section that moves the injection section relative to the fixed molding die. The injection section includes a nozzle and an injection amount adjustment mechanism. The injection molding device further includes a control section configured to control the moving section, the injection amount adjustment mechanism, and a heater. The control section executes the following in a state where the molding die is mounted on the fixing section, a first control in which the nozzle is brought into contact with the fixed molding die and the molding material is injected, and a second control in which the nozzle is separated from the fixed molding die after a predetermined time elapses from the completion of the first control.
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公开(公告)号：US12237781B2
公开(公告)日：2025-02-25
申请号：US18081713
申请日：2022-12-15
Applicant: SEIKO EPSON CORPORATION
Inventor： Kiichi Kajino
Abstract: An ultrasonic motor includes a vibration section having a piezoelectric element configured to generate vibration by receiving a drive voltage, a driven section, a convex section connected to the vibration section and configured to transmit vibration of the vibration section to the driven section, a drive circuit configured to generate the drive voltage, an encoder configured to detect a movement amount of the driven section, a storage section configured to store a specified voltage value, and a determination section configured to receive position information from the encoder when the driven section starts to move and a voltage value at the time of start up from the drive circuit and to determine that least one of the convex section or the driven section is worn out when the voltage value at the time of start up is larger than the specified voltage value.
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