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公开(公告)号：US20140127623A1
公开(公告)日：2014-05-08
申请号：US14071436
申请日：2013-11-04
Applicant: KYOCERA DOCUMENT SOLUTIONS INC.
Inventor： Toyotsune INOUE
Abstract: A liquid developer includes an insulating carrier liquid, colored particles, an organic macromolecular compound, and a dispersant. The organic macromolecular compound is dissolved in the carrier liquid. The organic macromolecular compound is formed of a copolymer resin selected from cyclic olefin copolymers and styrene-based elastomers. The colored particles are dispersed in the carrier liquid. Each of the colored particles includes a binder resin and carbon black. A mass ratio (V/OP) of a content (V) of the dispersant in the liquid developer to a content (OP) of the organic macromolecular compound in the liquid developer is 0.2 or larger and 0.8 or smaller.
Abstract translation: 液体显影剂包括绝缘载体液体，着色颗粒，有机高分子化合物和分散剂。 将有机高分子化合物溶解在载液中。 有机高分子化合物由选自环烯烃共聚物和苯乙烯类弹性体的共聚物树脂形成。 有色颗粒分散在载液中。 每个着色颗粒包括粘合剂树脂和炭黑。 液体显影剂中分散剂的含量（V）与液体显影剂中有机高分子化合物的含量（OP）的质量比（V / OP）为0.2以上且0.8以下。
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公开(公告)号：US20220195230A1
公开(公告)日：2022-06-23
申请号：US17553123
申请日：2021-12-16
Applicant: KYOCERA Document Solutions Inc.
Inventor： Noriaki OZAWA , Yasuko TAKAORI , Toyotsune INOUE
IPC: C09D11/54 , C09D11/322 , C09D11/107 , B41M5/00
Abstract: An ink set includes an inkjet ink and a recording head filling liquid. The inkjet ink includes a pigment, a pigment coating resin, a first alkali metal ion, and water. The recording head filling liquid includes polyethylene glycol, a second alkali metal ion, a surfactant, and water. The polyethylene glycol has a mass average molecular weight of at least 180 and no greater than 800. A content ratio of the surfactant in the recording head filling liquid is greater than 0.00% by mass and no greater than 0.10% by mass. The first and second alkali metal ions each contain at least one of Li+, Na+, and K+.
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公开(公告)号：US20200108630A1
公开(公告)日：2020-04-09
申请号：US16589439
申请日：2019-10-01
Applicant: KYOCERA Document Solutions Inc.
Inventor： Noriaki OZAWA , Hiroatsu TAMAI , Takeshi WATANABE , Hiroyuki UEDA , Yasuhiro MICHISHITA , Toyotsune INOUE , Naoto MIYAKOSHI , Yusuke TAKANO
Abstract: An inkjet recording apparatus includes three or more recording heads. The recording heads contain different inks and eject the different inks sequentially on a recording medium. The different inks each contain a pigment. Of the different inks, an ink to be ejected first has the lowest pigment content ratio. Of the different inks, an ink to be ejected third and an ink to be subsequently ejected each have a pigment content ratio equal to or higher than that of the pigment contained in a corresponding one of inks to be precedently ejected. Of the different inks, an ink to be ejected second and an ink to be subsequently ejected each have a lower viscosity at 25° C. than a corresponding one of inks to be precedently ejected.
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公开(公告)号：US20180339528A1
公开(公告)日：2018-11-29
申请号：US15987299
申请日：2018-05-23
Applicant: KYOCERA Document Solutions Inc.
Inventor： Hiroyuki UEDA , Susumu HIROSHIMA , Takeshi WATANABE , Takatoshi NISHIMURA , Hiroatsu TAMAI , Noriaki OZAWA , Toyotsune INOUE
Abstract: A decurling device includes a decurler. The decurler includes a first dryer roller, a second dryer roller, and a heat source. The heat source is disposed at the first dryer roller to heat the first dryer roller. The first dryer roller and the second dryer roller rotate while holding a sheet therebetween to convey the sheet.
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公开(公告)号：US20180339527A1
公开(公告)日：2018-11-29
申请号：US15975801
申请日：2018-05-10
Applicant: KYOCERA Document Solutions Inc.
Inventor： Hiroatsu TAMAI , Takeshi WATANABE , Hiroyuki UEDA , Noriaki OZAWA , Toyotsune INOUE , Susumu HIROSHIMA , Takatoshi NISHIMURA
CPC classification number: B41J11/0005 , B65H23/34 , B65H29/125 , B65H29/60 , B65H29/70 , B65H2513/42 , B65H2515/112 , B65H2801/06 , B65H2801/27 , B65H2220/01 , B65H2220/02
Abstract: A decurling device includes a first conveyance path, a second conveyance path, a first switch, a decurler, and a controller. A sheet is conveyed along the first conveyance path or the second conveyance path. The first switch switches a route of conveyance of the sheet to the first conveyance path or the second conveyance path. The sheet has a first main surface and a second main surface. The decurler is located in the second conveyance path. The decurler corrects curl of the sheet. In a situation in which a weight per unit area of the sheet is smaller than a first threshold value, the controller controls the first switch such that the sheet is conveyed along the second conveyance path.
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Patent Agency Ranking
公开(公告)号：US20210170745A1
公开(公告)日：2021-06-10
申请号：US17182014
申请日：2021-02-22
Applicant: KYOCERA Document Solutions Inc.
Inventor： Takeshi WATANABE , Hiroyuki UEDA , Hiroatsu TAMAI , Takatoshi NISHIMURA , Noriaki OZAWA , Toyotsune INOUE , Susumu HIROSHIMA
Abstract: An inkjet recording apparatus includes memory, a processor, an image forming section, and a bending mechanism. The memory stores therein bending information in which a plurality of bending amounts corresponding to respective ejection amounts of an ink ejected from the image forming section are defined. The processor sets a bending amount of a sheet to be conveyed. The bending mechanism includes a roller and a belt that hold the sheet therebetween, and bends the sheet by moving a position of a center of the roller toward the belt based on the set bending amount. The processor calculates for each of areas of the sheet an amount of the ink ejected to the area, and sets the bending amount of the sheet based on the bending amounts corresponding to the calculated amounts of the ink ejected to the respective areas in the bending information.
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公开(公告)号：US20200215830A1
公开(公告)日：2020-07-09
申请号：US16827514
申请日：2020-03-23
Applicant: KYOCERA Document Solutions Inc.
Inventor： Hiroyuki UEDA , Susumu HIROSHIMA , Takeshi WATANABE , Takatoshi NISHIMURA , Hiroatsu TAMAI , Noriaki OZAWA , Toyotsune INOUE
Abstract: An inkjet recording apparatus includes an image forming section, a roller, a heat source, a calculator, a determination section, and a controller. The determination section determines to activate the heat source when an ink ejection amount calculated by the calculator is larger than a specific reference amount. When the determination section determines to activate the heat source, the controller activates the heat source. When temperature of the roller is equal to or higher than a specific temperature, the controller controls the image forming section to form the image on the sheet.
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公开(公告)号：US20190240975A1
公开(公告)日：2019-08-08
申请号：US16346802
申请日：2018-05-16
Applicant: KYOCERA Document Solutions Inc.
Inventor： Takeshi WATANABE , Hiroyuki UEDA , Hiroatsu TAMAI , Takatoshi NISHIMURA , Noriaki OZAWA , Toyotsune INOUE , Susumu HIROSHIMA
IPC: B41J2/045
CPC classification number: B41J2/04558 , B41J2/01 , B41J2/04586 , B65H29/70
Abstract: An inkjet recording apparatus (1) includes an image forming section (40), a decurler (20), a changing section (50), a first calculating section (72), storage (60), a second calculating section (73), and a controller (75). The image forming section (40) ejects ink onto a sheet (S). The decurler (20) bends the sheet (S). The changing section (50) changes a bending amount of the sheet (S). The first calculating section (72) calculates an ink ejection rate (α) to the sheet (S) for each of areas of the sheet (S). The storage (60) stores therein first bending information (62) indicating a first target bending amount (β) of a specific area of the sheet (S) corresponding to the ink ejection rate (α) to the specific area. The second calculating section (73) calculates a second target bending amount of each of the areas. The controller (75) controls the changing section (50) based on the second target bending amounts.
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公开(公告)号：US20240026175A1
公开(公告)日：2024-01-25
申请号：US18355915
申请日：2023-07-20
Applicant: KYOCERA Document Solutions Inc.
Inventor： Toyotsune INOUE
IPC: C09D11/322 , B41J2/165
CPC classification number: C09D11/322 , B41J2/16535
Abstract: An inkjet ink contains a quinacridone pigment, a resin, and an aqueous medium. A 50-fold dilution of a supernatant obtained by centrifugating the inkjet ink at 1,050,000 G for 3 hours has a phosphorous concentration of at least 1.0 ppm and no greater than 6.0 ppm. On an ultraviolet-visible absorption spectrum of the supernatant, a first peak appears at a first absorbance of at least 0.16 and no greater than 0.40. The first peak is a maximum peak in a wavelength range of the ultraviolet-visible absorption spectrum of at least 300 nm and no greater than 340 nm. On the ultraviolet-visible absorption spectrum of the supernatant, a second peak appears at a second absorbance of at least 0.15 and no greater than 0.80. The second peak is a maximum peak in a wavelength range of the ultraviolet-visible absorption spectrum of at least 400 nm and no greater than 490 nm.
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公开(公告)号：US20220228014A1
公开(公告)日：2022-07-21
申请号：US17572889
申请日：2022-01-11
Applicant: KYOCERA Document Solutions Inc.
Inventor： Yasuko TAKAORI , Noriaki OZAWA , Toyotsune INOUE
IPC: C09D11/40 , C09D11/037 , C09D11/107 , C09D11/322 , C09D11/324 , C09D11/033 , C09D11/38 , C09D11/102 , B41M5/00 , B41J2/045
Abstract: An ink set includes an inkjet ink and a recording head filling liquid. The inkjet ink contains a pigment, a pigment covering resin, and water. The recording head filling liquid contains polyethylene glycol, a nonionic surfactant, and water. The recording head filling liquid has a viscosity of at least 3 mPa·s and no greater than 10 mPa·s. The polyethylene glycol has a mass average molecular weight of at least 170 and no greater than 300. A percentage content of the polyethylene glycol in the recording head filling liquid is at least 7.0% by mass and no greater than 55.0% by mass. The pigment covering resin includes a styrene-acrylic resin.
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