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公开(公告)号：US11555099B2
公开(公告)日：2023-01-17
申请号：US17316439
申请日：2021-05-10
Applicant: TOSHIBA TEC KABUSHIKI KAISHA
Inventor： Tsuyoshi Itou , Maiko Miyoshi , Takafumi Hara
IPC: C08K5/18 , C09D11/104 , C08K5/053 , C08K5/134 , C08K3/36
Abstract: According to one embodiment, a high-definition and decolorable image is formed. A method for producing a colorable material according to an embodiment includes supplying a first solution containing a color developable agent and a first solvent to a color developing agent in the form of a powder which is insoluble in the first solvent so that a first mixture of the first solution and the color developing agent maintains the powder state, and removing the first solvent from the first mixture, thereby obtaining a powder of colorable particles containing the color developable agent and the color developing agent.
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公开(公告)号：US10962894B2
公开(公告)日：2021-03-30
申请号：US16750421
申请日：2020-01-23
Applicant: TOSHIBA TEC KABUSHIKI KAISHA
Inventor： Tsuyoshi Itou , Takafumi Hara
Abstract: A decolorizable toner allows for easy distinguishing between a sheet which can be reused and a sheet which is hardly able to be reused from each other. The decolorizable toner includes a color developable compound, a color developing agent, a decolorizing agent, a magnetic material, and a binder resin. The color developable compound is a precursor compound of a dye. The color developing agent is an electron accepting compound which donates a proton to the color developable compound. The decolorizing agent is a compound which inhibits a coloring reaction between the color developable compound and the color developing agent.
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3.发明授权公开(公告)号：US10816912B2
公开(公告)日：2020-10-27
申请号：US16430477
申请日：2019-06-04
Applicant: TOSHIBA TEC KABUSHIKI KAISHA
Inventor： Tsuyoshi Itou , Kazuhisa Takeda , Masahiro Ikuta , Takafumi Hara , Hiromichi Mitamura , Shigeru Fujiwara , Hisanobu Ajima
Abstract: According to one embodiment, there is provided a toner cartridge used in an image forming apparatus including a processor which forms a toner pattern image on a photoconductive member, transfers the toner pattern image on a medium, and changes an image forming condition based on a detection result obtained by optically detecting the toner pattern transferred onto the medium, the toner cartridge including: a toner accommodating container accommodating a toner, and a memory. The memory stores a plurality of reference data which are determined according to toner characteristics in the toner accommodating container and a value indicating an image forming execution amount, and are used for applying reference values for an optical detection result of a toner pattern formed by the toner on the medium.
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公开(公告)号：US20200159138A1
公开(公告)日：2020-05-21
申请号：US16750421
申请日：2020-01-23
Applicant: TOSHIBA TEC KABUSHIKI KAISHA
Inventor： Tsuyoshi Itou , Takafumi Hara
Abstract: A decolorizable toner allows for easy distinguishing between a sheet which can be reused and a sheet which is hardly able to be reused from each other. The decolorizable toner includes a color developable compound, a color developing agent, a decolorizing agent, a magnetic material, and a binder resin. The color developable compound is a precursor compound of a dye. The color developing agent is an electron accepting compound which donates a proton to the color developable compound. The decolorizing agent is a compound which inhibits a coloring reaction between the color developable compound and the color developing agent.
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公开(公告)号：US09821590B2
公开(公告)日：2017-11-21
申请号：US15382895
申请日：2016-12-19
Applicant: KABUSHIKI KAISHA TOSHIBA , TOSHIBA TEC KABUSHIKI KAISHA
Inventor： Kazuhisa Takeda , Tsuyoshi Itou , Masahiro Ikuta , Takafumi Hara , Motonari Udo , Takayasu Aoki , Yasuhito Noda
CPC classification number: B41M7/0009 , B41J2/32 , B41J2202/37 , B41M7/009 , G03G15/2003 , G03G15/6529 , G03G15/6585 , G03G2215/00413 , G06K15/02 , H04N1/0032 , H04N1/0057 , H04N1/00602 , H04N1/00612 , H04N1/00657 , H04N1/00795 , H04N1/00803 , H04N1/2323 , H04N2201/0094
Abstract: In accordance with one embodiment, a color erasing apparatus comprises a conveyance path, a color erasing section and a control section. The conveyance path conveys a sheet. The color erasing section erases the color of an image formed with color erasable recording agent serving as recording agent containing coloring agent the color of which can be erased by heating. The control section carries out a control, in a case where the image formed on the sheet is not an image formed with the color erasable recording agent, so that the sheet is not subjected to a color erasing processing by the color erasing section.
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Patent Agency Ranking
公开(公告)号：US09798260B2
公开(公告)日：2017-10-24
申请号：US15132953
申请日：2016-04-19
Applicant: TOSHIBA TEC KABUSHIKI KAISHA
Inventor： Takafumi Hara , Masahiro Ikuta , Tsuyoshi Itou , Motonari Udo , Kazuhisa Takeda
CPC classification number: G03G9/0926 , G03G9/09328 , G03G9/09371 , G03G9/09378 , G03G9/09385 , G03G9/09392
Abstract: Provided is a decolorizable toner including a binder resin and colorant particles which contain a color developable compound, a color developing agent, and a decolorizing agent, and have a capsule structure coated with an outer shell, wherein the binder resin is contained in an amount of 60 to 80% by mass with respect to the total amount of the toner components.
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公开(公告)号：US09348249B2
公开(公告)日：2016-05-24
申请号：US14341609
申请日：2014-07-25
Applicant: TOSHIBA TEC KABUSHIKI KAISHA
Inventor： Masahiro Ikuta , Kazuhisa Takeda , Tsuyoshi Itou , Yasuhito Noda , Takayasu Aoki , Takafumi Hara
IPC: G03G15/01
CPC classification number: G03G15/0121 , G03G9/0821 , G03G9/0926 , G03G9/0928 , G03G15/6585
Abstract: According to one embodiment, there is provided an image forming apparatus which forms an decolorable image and an non-decolorable image by fixing a toner image including a decolorable toner and a toner image including a non-decolorable toner or a medium. The decolorable toner has a first peak of a loss tangent tan δ at a temperature TE1, and the non-decolorable toner has a first peak of a loss tangent tan δ at a temperature TU1. A difference between the temperature TE1 and the temperature TU1 is within 20° C.
Abstract translation: 根据一个实施例，提供了一种图像形成装置，其通过固定包括不可拆卸调色剂的调色剂图像和包括不可拆卸调色剂或介质的调色剂图像来形成不可拆卸图像和不可解除图像。 脱色调色剂在温度TE1下具有损耗角正切tanδ的第一峰值，非脱色调色剂在温度TU1下具有损耗角正切tanδ的第一峰值。 温度TE1和温度TU1之间的差值在20℃以内
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公开(公告)号：US09217941B2
公开(公告)日：2015-12-22
申请号：US14152878
申请日：2014-01-10
Applicant: Toshiba Tec Kabushiki Kaisha
Inventor： Tsuyoshi Itou , Kazuhisa Takeda , Yasuhito Noda , Takayasu Aoki , Masahiro Ikuta , Takafumi Hara , Motonari Udo
CPC classification number: G03G9/081 , G03G9/0815 , G03G9/0926 , G03G9/09708 , G03G9/09716 , G03G9/09725
Abstract: According to one embodiment, a method of manufacturing an erasable toner includes washing toner particles including therein a coloring material that is erasable by heating and a binder resin to obtain a toner cake having the amount of water of 20% by weight to 60% by weight, and drying the toner cake at 40° C. or more and at a temperature which is lower than the complete color erasing temperature of the toner particles by 30° C. or more.
Abstract translation: 根据一个实施方案，制造可擦除调色剂的方法包括在其中清洗调色剂颗粒，其中包含通过加热可消除的着色材料和粘合剂树脂，以获得具有20重量％至60重量％的水量的调色剂饼 ，并将调色剂饼在40℃以上，并且在低于调色剂颗粒的完全彩色擦除温度的温度下干燥30℃以上。
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公开(公告)号：US09128394B2
公开(公告)日：2015-09-08
申请号：US13664704
申请日：2012-10-31
Applicant: TOSHIBA TEC KABUSHIKI KAISHA
Inventor： Takafumi Hara , Masahiro Ikuta , Tsuyoshi Itou , Motonari Udo , Kazuhisa Takeda
CPC classification number: G03G9/0804 , G03G9/0819 , G03G9/08782 , G03G9/09 , G03G9/0926 , G03G9/0928
Abstract: An electrophotographic toner produced by mixing a dispersion of colorant particles containing a colorant and a dispersion of release agent particles containing a release agent and having a volume average particle diameter smaller than that of the colorant particles, aggregating the colorant particles and the release agent particles in the dispersion to produce first aggregates, mixing a dispersion of resin particles containing a binder resin and having a volume average particle diameter smaller than that of the release agent particles in the dispersion containing the first aggregates, and aggregating the first aggregates and the resin particles in the dispersion of the first aggregates and the resin particles to coat the first aggregates with the resin particles, producing second aggregates.
Abstract translation: 通过将包含着色剂的着色剂颗粒的分散体和含有脱模剂的分散剂颗粒与体积平均粒径小于着色剂颗粒的体积平均粒径的分散体混合制成的电子照相调色剂，将着色剂颗粒和脱模剂颗粒聚集在 制备第一聚集体的分散体，将含有粘合剂树脂的树脂颗粒的分散体与包含第一聚集体的分散体中的体积平均粒径比脱模剂颗粒小的体积平均粒径混合，并将第一聚集体和树脂颗粒聚集 第一聚集体和树脂颗粒的分散体用树脂颗粒涂覆第一聚集体，产生第二聚集体。
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10.发明授权公开(公告)号：US09757969B2
公开(公告)日：2017-09-12
申请号：US15365055
申请日：2016-11-30
Applicant: Toshiba Tec Kabushiki Kaisha
Inventor： Motonari Udo , Masahiro Ikuta , Kazuhisa Takeda , Tsuyoshi Itou , Takayasu Aoki , Takafumi Hara
CPC classification number: B41M7/0009 , B41M7/009 , G03G15/16 , G03G15/6585
Abstract: An image forming apparatus includes a first image forming unit configured to form a first image to be transferred to a sheet with a non-decolorizable material, and a second image forming unit configured to form a second image to be transferred to the sheet with a decolorizable material. At least a part of the second image transferred to the sheet is formed on the first image transferred to the sheet.
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