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1.发明申请公开(公告)号：US20230025505A1
公开(公告)日：2023-01-26
申请号：US17814989
申请日：2022-07-26
Applicant: SEIKO EPSON CORPORATION
Inventor： Hirofumi HOKARI , Michio NAKAMORI , Yasunari IKEDA
Abstract: A filtration separator for magnetic particles includes a storage tank that stores a liquid in which magnetic particles are dispersed, and that has a bottom portion and a side wall portion, a stirring mechanism having a rotating shaft portion inserted into the storage tank in a direction crossing a face of the bottom portion, and a stirring impeller that is coupled to the rotating shaft portion and that stirs the liquid by rotation of the rotating shaft portion, a magnet mechanism that is provided in at least a part of the side wall portion, and that can switch a magnetic force in the storage tank between an on state and an off state, and that adsorb the magnetic particles in the liquid to the side wall portion when it is in the on state, and a filtration mechanism having a filter provided in the bottom portion of the storage tank, and a discharge port from which the liquid after passing through the filter is discharged.
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公开(公告)号：US20190300736A1
公开(公告)日：2019-10-03
申请号：US16365889
申请日：2019-03-27
Applicant: SEIKO EPSON CORPORATION
Inventor： Kenji KITADA , Hiroko HAYASHI , Yasunari IKEDA , Hirofumi HOKARI , Hisashi OKAMURA , Kenta KIKUCHI , Seiji KAGAMI , Shinichi NAITO
IPC: C09D11/328 , C09D11/38 , C09D11/033 , C09D11/037 , C09D11/107 , C09D11/103 , C09D11/08 , D06P5/30
Abstract: An aqueous inkjet composition contains at least one disperse dye selected from the group consisting of C.I. Disperse Yellow 54, C.I. Disperse Red 60, and C.I. Disperse Blue 359, and a styrene maleic acid-based dispersing agent represented by Formula (1).
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公开(公告)号：US20200207997A1
公开(公告)日：2020-07-02
申请号：US16727020
申请日：2019-12-26
Applicant: Seiko Epson Corporation
Inventor： Yasunari IKEDA , Hirofumi HOKARI , Shinichi YAMAMOTO , Shigeki KAWADA , Michio NAKAMORI
IPC: C09D11/322 , C08K5/42 , C08L25/08 , C08L41/00 , C08K5/45
Abstract: An aqueous ink jet composition according to the present disclosure includes: C.I. Disperse Red 364 as a first component; a second component which is a dispersant having a chemical structure of at least one of a sulfo group and a salt thereof; and a third component having an indigo skeleton and a chemical structure of at least one of a sulfo group and a salt thereof.
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公开(公告)号：US20160075879A1
公开(公告)日：2016-03-17
申请号：US14854368
申请日：2015-09-15
Applicant: Seiko Epson Corporation
Inventor： Yasunari IKEDA , Akio ITO
IPC: C09B56/00 , C09B1/16 , C09B29/16 , C09B29/036
CPC classification number: C09B56/005 , C09B1/16 , C09B29/0037 , C09B29/0048 , C09B29/16 , C09B67/0033 , C09D11/328 , C09D11/38
Abstract: A printing ink composition includes a disperse dye, a surfactant, a water soluble dye, and a dispersant, in which an IOB value A of the disperse dye, an IOB value B of the surfactant, and an IOB value C of the water soluble dye satisfy the following Equation (1), A
Abstract translation: 印刷油墨组合物包括分散染料的IOB值A，表面活性剂的IOB值B和水溶性染料的IOB值C的分散染料，表面活性剂，水溶性染料和分散剂 满足下式（1），A
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公开(公告)号：US20230307161A1
公开(公告)日：2023-09-28
申请号：US18188593
申请日：2023-03-23
Applicant: SEIKO EPSON CORPORATION
Inventor： Michio NAKAMORI , Yasunari IKEDA , Sukenori ICHIKAWA
IPC: H01F1/147
CPC classification number: H01F1/14766
Abstract: A magnetic bead includes: a magnetic metal powder; and a coating layer that covers a particle surface of the magnetic metal powder, has an average thickness of 20 nm or more, and is made of an oxide material. A coercive force is 1.0 Oe, which is equal to 80 A/m, or less. The magnetic metal powder may contain an amorphous structure or a nanocrystalline structure. The magnetic metal powder may be made of an alloy containing Fe as a main component.
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Patent Agency Ranking
公开(公告)号：US20230082684A1
公开(公告)日：2023-03-16
申请号：US17897355
申请日：2022-08-29
Applicant: SEIKO EPSON CORPORATION
Inventor： Michio NAKAMORI , Masato HANAMURA , Yasunari IKEDA
Abstract: A magnetic bead separation method includes: storing, in a container, a mixed liquid containing a magnetic bead and a liquid containing target molecules, and adsorbing the target molecules on the magnetic bead, the magnetic bead containing a Fe-based metal soft magnetic particle and a coating film with which the Fe-based metal soft magnetic particle is coated, and having a saturation magnetization of 50 emu/g or more and 250 emu/g or less; applying an external magnetic field to the container and magnetically attracting at least a part of the magnetic bead by the external magnetic field; and applying an acceleration to the container while the magnetic bead is magnetically attracted by the external magnetic field and desorbing the liquid adhering to the magnetic bead.
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公开(公告)号：US20210024764A1
公开(公告)日：2021-01-28
申请号：US16934109
申请日：2020-07-21
Applicant: Seiko Epson Corporation
Inventor： Michio NAKAMORI , Shinichi YAMAMOTO , Yasunari IKEDA
IPC: C09D11/328 , C09D11/102
Abstract: An aqueous ink jet composition of the present disclosure includes at least one specific dye selected from the group consisting of C.I. Disperse Orange 25 and C.I. Disperse Brown 27; an anionic dispersant; and a material A which is at least one compound selected from the group consisting of a polyalkylene glycol, a derivative thereof, and a phenyl azo compound different from the specific dye.
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公开(公告)号：US20230317332A1
公开(公告)日：2023-10-05
申请号：US18191096
申请日：2023-03-28
Applicant: SEIKO EPSON CORPORATION
Inventor： Yasunari IKEDA , Michio NAKAMORI , Hirofumi HOKARI
CPC classification number: H01F1/15383 , B22F1/052 , B22F1/08 , B22F1/147 , B22F1/07 , B22F2009/0804
Abstract: A magnetic bead contains: a magnetic metal powder; and a coating layer with which a particle surface of the magnetic metal powder is coated. When the magnetic bead is left to stand in a state of a dispersion obtained by dispersing the magnetic bead in water, a time until an initial absorbance of the dispersion attenuates to 80% of an absorbance when the standing is started is 90 seconds or longer.
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公开(公告)号：US20200239718A1
公开(公告)日：2020-07-30
申请号：US16775317
申请日：2020-01-29
Applicant: Seiko Epson Corporation
Inventor： Kenji KITADA , Hiroko HAYASHI , Yasunari IKEDA , Hisashi OKAMURA , Kenta KIKUCHI , Hirofumi HOKARI , Shinichi NAITO , Kazumasa OTSUKI , Michio NAKAMORI , Shinichi YAMAMOTO , Seiji KAGAMI , Shigeki KAWADA
IPC: C09D11/328 , C08K5/3415 , C08K5/1515 , C08K5/13 , C08L71/02 , C08K5/42
Abstract: An aqueous ink jet composition of the present disclosure includes: at least one dye selected from the group consisting of C.I. Solvent Yellow 160:1, C.I. Disperse Yellow 82, and C.I. Disperse Yellow 184; a material A which is at least one compound selected from the group consisting of a compound represented by the following formula (1), a compound represented by the following formula (2), an ethylene oxide adduct of tristyrylphenol, a derivative of an ethylene oxide adduct of tristyrylphenol, a polyalkylene glycol, and a derivative of a polyalkylene glycol; and an anionic dispersant.
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公开(公告)号：US20190352525A1
公开(公告)日：2019-11-21
申请号：US16411332
申请日：2019-05-14
Applicant: Seiko Epson Corporation
Inventor： Yasunari IKEDA , Hiroko HAYASHI , Kenji KITADA , Hirofumi HOKARI , Hisashi OKAMURA , Kenta KIKUCHI , Shinichi NAITO
IPC: C09D11/328 , C09D11/38
Abstract: An aqueous ink jet composition includes a first component which is at least one selected from the group consisting of C.I. Solvent Yellow 160: 1, C.I. Disperse Yellow 82, and C.I. Disperse Yellow 184; a second component which is a dispersant having at least one chemical structure of a sulfo group and a salt thereof; and a third component which has a cumarin skeleton and at least one chemical structure of a sulfo group and a salt thereof.
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