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公开(公告)号：US20220098794A1
公开(公告)日：2022-03-31
申请号：US17485660
申请日：2021-09-27
Applicant: SEIKO EPSON CORPORATION
Inventor： Kazuma MIYAZAWA , Naoya SATO
Abstract: A paper producing apparatus includes: a sieve portion having a plurality of openings; a web forming portion having a deposition surface on which a material passing through the openings and containing fibers is deposited, the web forming portion forming a web on the deposition surface; a sheet forming portion that processes the web into a sheet; and a material supply pipe through which transport airflow containing the material is supplied to an inside of the sieve portion.
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2.发明申请公开(公告)号：US20200077216A1
公开(公告)日：2020-03-05
申请号：US16551899
申请日：2019-08-27
Applicant: SEIKO EPSON CORPORATION
Inventor： Satomi YOSHIOKA , Masahiro UCHIDA , Kazuma MIYAZAWA
Abstract: A vibration plate manufacturing device including: a defibration unit which defibrates a raw material including fibers; a mixing unit which mixes a binding material for binding the fibers to each other, to a defibrated material defibrated by the defibration unit; a second web formation unit which accumulates a mixture mixed by the mixing unit; and a molding unit which forms the second web accumulated in second web formation unit into a vibration plate by a molding process including pressing and heating.
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公开(公告)号：US20180347086A1
公开(公告)日：2018-12-06
申请号：US15779299
申请日：2016-11-18
Applicant: SEIKO EPSON CORPORATION
Inventor： Naotaka HIGUCHI , Shigeo FUJITA , Kazuma MIYAZAWA
CPC classification number: D04H1/732
Abstract: To manufacture sheets of uniform quality, a sheet manufacturing apparatus has a drum with a plurality of holes; a housing covering the drum; a conveyor on which material including fiber that has passed through the holes accumulates as a web, and which conveys the accumulated web; a first roller that is a first roller disposed to contact the web conveyed by the conveyor, and has asperities on its outside surface; and a first seal disposed to a first wall of the first housing to contact an outside surface of the first roller.
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公开(公告)号：US20240093430A1
公开(公告)日：2024-03-21
申请号：US18466026
申请日：2023-09-13
Applicant: SEIKO EPSON CORPORATION
Inventor： Hidemasa KANADA , Yoshiyuki NAGAI , Masanao FUKASAWA , Kazuma MIYAZAWA , Masahide NAKAMURA
Abstract: There is provided a sheet manufacturing apparatus including: an accumulation section that accumulates a material containing fibers by an air flow to form a web; a humidification section that applies moisture from one surface side of the web; and a pressurization section that pressurizes the humidified web to form a sheet, in which the pressurization section includes a first roller that comes into contact with one surface of the web and a second roller that comes into contact with the other surface of the web, and a surface of the first roller is harder than a surface of the second roller.
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公开(公告)号：US20210206019A1
公开(公告)日：2021-07-08
申请号：US15998938
申请日：2017-01-24
Applicant: SEIKO EPSON CORPORATION
Inventor： Kazuma MIYAZAWA , Toshiaki YAMAGAMI , Masahide NAKAMURA
Abstract: A sheet manufacturing apparatus includes a coarse crushing portion that crushes a raw material containing a fiber into coarse crushed pieces, a defibrating portion that defibrates the coarse crushed pieces into a defibrated material, a sieve portion that includes a plurality of openings, a sheet forming portion that uses the defibrated material passing through the opening of the sieve portion to form a sheet, and a transport passage that transports the defibrated material, which has not passed through the opening of the sieve portion, between the coarse crushing portion and the defibrating portion.
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Patent Agency Ranking
公开(公告)号：US20200206668A1
公开(公告)日：2020-07-02
申请号：US16727104
申请日：2019-12-26
Applicant: SEIKO EPSON CORPORATION
Inventor： Kazuma MIYAZAWA , Kunihiro SASAOKA
Abstract: A swirling flow generation device includes a first pipe having a first pipe axis and through which gas passes, a second pipe having a second pipe axis in a direction different from the first pipe axis and communicates with downstream of the first pipe, and an airflow changing unit provided in the first pipe and having an opening eccentric from the first pipe axis. A swirling flow is formed in the second pipe as the center of the airflow passed through the opening flows into the second pipe at a position that is eccentric from the second pipe axis.
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公开(公告)号：US20200149219A1
公开(公告)日：2020-05-14
申请号：US16676533
申请日：2019-11-07
Applicant: SEIKO EPSON CORPORATION
Inventor： Hirofumi NAKATA , Kazuma MIYAZAWA , Sadaharu KOMORI , Masahide NAKAMURA , Yuki OGUCHI , Soichiro SEO , Yoshiyuki NAGAI
Abstract: A web manufacturing apparatus includes a defibration section that includes a rotating blade and is configured to defibrate a material containing fiber, a detection section configured to detect an electric charge amount of a defibrated material obtained by the defibration section, and a control section configured to control operation of the defibration section. The control section includes a first mode in which a revolution speed of the rotating blade is set based on a detection result of the detection section.
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公开(公告)号：US20160305066A1
公开(公告)日：2016-10-20
申请号：US15101263
申请日：2014-08-28
Applicant: SEIKO EPSON CORPORATION
Inventor： Kazuma MIYAZAWA , Shigeo FUJITA
CPC classification number: D21B1/06 , B27N3/12 , D04H1/26 , D04H1/72 , D04H1/732 , D04H1/736 , D21B1/08 , D21F9/00
Abstract: Discharge of fiber and other particulate to the outside of a housing unit is prevented.A drum unit includes a screen with numerous apertures through which airborne material including at least fiber passes, and a cylinder section without apertures, disposed to a rotating cylinder; a housing unit encloses the screen part of the drum unit inside and contacts the cylinder section; and a forming unit forms sheets using material that passes through the apertures.
Abstract translation: 鼓单元包括具有多个孔的筛网，至少包括纤维的空气传播材料通过，以及设置在旋转圆筒上的无孔的圆筒部分; 壳体单元将硒鼓单元的屏幕部分内部并与气缸部分接触; 并且成形单元使用穿过孔的材料形成片材。
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公开(公告)号：US20240102243A1
公开(公告)日：2024-03-28
申请号：US18466028
申请日：2023-09-13
Applicant: SEIKO EPSON CORPORATION
Inventor： Hidemasa KANADA , Yoshiyuki NAGAI , Masanao FUKASAWA , Kazuma MIYAZAWA , Masahide NAKAMURA
Abstract: There is provided a sheet manufacturing apparatus including: an accumulation section that accumulates a material containing fibers by an air flow to form a web; a humidification section that applies moisture from one surface side of the web; and a pressurization section that pressurizes the humidified web at a pressurization location to form a sheet, in which the pressurization section includes a first roller that comes into contact with one surface of the web at the pressurization location and a second roller that comes into contact with the other surface of the web at the pressurization location, the web is transported such that the one surface of the web comes into contact with a surface of the first roller over a predetermined length starting from the pressurization location, and the first roller has a heating mechanism, and the first roller heats the web while the one surface of the web is in contact with the surface of the first roller.
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公开(公告)号：US20210246612A1
公开(公告)日：2021-08-12
申请号：US17168400
申请日：2021-02-05
Applicant: SEIKO EPSON CORPORATION
Inventor： Kazuma MIYAZAWA , Katsuhito GOMI
IPC: D21F1/02
Abstract: A fibrous body accumulating device includes: a drum having an opening for releasing a material containing fibers and rotating around a central axis; and a first dispersion member disposed in the drum, extending in a direction along the central axis, and dispersing the material in the drum, in which the first dispersion member has a first portion having the material with a high dispersion ability and a second portion having the material with a lower dispersion ability than the first portion, the first portion and the second portion being disposed at different positions in a direction along the central axis.
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