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公开(公告)号:US09880479B2
公开(公告)日:2018-01-30
申请号:US15404292
申请日:2017-01-12
申请人: Hideyuki Santoh , Tsuyoshi Sugimoto , Akinori Saitoh , Shin Hasegawa , Suzuka Amemori , Kohsuke Nagata , Koh Ohnuma
发明人: Hideyuki Santoh , Tsuyoshi Sugimoto , Akinori Saitoh , Shin Hasegawa , Suzuka Amemori , Kohsuke Nagata , Koh Ohnuma
CPC分类号: G03G15/08 , G03G9/0806 , G03G9/08755 , G03G9/08797 , G03G9/09708
摘要: Toner that includes a polyester resin, fluorine and aluminum. The toner satisfies formulae (1) and (2), 1.00≧AB/B≧0.50 (1) 0≦(A−AB)/A≦0.25 (2) where A represents an area where the fluorine exists measured by Energy Dispersive X-ray Spectroscopy (EDS), B represents an area where the aluminum exists measured by Energy Dispersive X-ray Spectroscopy (EDS) and AB represents an overlapping area between A and B. Toner stored unit, image forming apparatus, and image forming method.
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公开(公告)号:US10073366B2
公开(公告)日:2018-09-11
申请号:US15622755
申请日:2017-06-14
申请人: Kohsuke Nagata , Ryuuta Yoshida , Shinya Nakayama , Tsuyoshi Sugimoto , Akinori Saitoh , Hideyuki Santo , Suzuka Karato , Koh Ohnuma , Takahiro Kadota , Shinsuke Nagai , Akihiro Takeyama
发明人: Kohsuke Nagata , Ryuuta Yoshida , Shinya Nakayama , Tsuyoshi Sugimoto , Akinori Saitoh , Hideyuki Santo , Suzuka Karato , Koh Ohnuma , Takahiro Kadota , Shinsuke Nagai , Akihiro Takeyama
CPC分类号: G03G9/08708 , G03G9/0804 , G03G9/0815 , G03G9/0821 , G03G9/0825 , G03G9/08755 , G03G9/08793 , G03G9/08795 , G03G9/08797 , G03G9/0904 , G03G15/0865
摘要: A toner is provided. The toner includes an amorphous resin, a crystalline resin dispersed in the amorphous resin, and a release agent. The toner satisfies the following inequality: B/A
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公开(公告)号:US09753387B2
公开(公告)日:2017-09-05
申请号:US15152963
申请日:2016-05-12
申请人: Shin Hasegawa , Tsuyoshi Sugimoto , Hideyuki Santo , Koh Ohnuma , Kohsuke Nagata , Suzuka Karato
发明人: Shin Hasegawa , Tsuyoshi Sugimoto , Hideyuki Santo , Koh Ohnuma , Kohsuke Nagata , Suzuka Karato
CPC分类号: G03G9/08755 , G03G9/0804 , G03G9/0825 , G03G15/0126
摘要: A toner includes a base particle including a polyester resin and a colorant. A sea-island structure is observed by a transmission electron microscope (TEM) in a cross-sectional image of the toner. The island structure includes the colorant and has an average diameter of from 0.2 μm to 1.0 μm, and the number of the island structure is from 5 to 30.
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公开(公告)号:US10670980B2
公开(公告)日:2020-06-02
申请号:US16031490
申请日:2018-07-10
申请人: Koh Ohnuma , Tsuyoshi Sugimoto , Shinya Nakayama , Hideyuki Santo , Shin Hasegawa , Suzuka Karato , Kohsuke Nagata
发明人: Koh Ohnuma , Tsuyoshi Sugimoto , Shinya Nakayama , Hideyuki Santo , Shin Hasegawa , Suzuka Karato , Kohsuke Nagata
摘要: Provided is a toner including a crystalline polyester resin including a constitutional unit derived from saturated aliphatic dicarboxylic acid and a constitutional unit derived from saturated aliphatic diol, an amorphous hybrid resin, an amorphous polyester resin, a release agent, and a colorant, wherein the crystalline polyester resin includes a constitutional unit derived from sebacic acid as the constitutional unit derived from the saturated aliphatic dicarboxylic acid, and the amorphous hybrid resin is a composite resin including a polyester-based resin unit and a styrene-based resin unit.
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公开(公告)号:US09639016B2
公开(公告)日:2017-05-02
申请号:US15051195
申请日:2016-02-23
申请人: Tsuyoshi Sugimoto , Shinya Nakayama , Hiroshi Yamada , Hideyuki Santo , Shin Hasegawa , Suzuka Karato , Kohsuke Nagata , Koh Ohnuma
发明人: Tsuyoshi Sugimoto , Shinya Nakayama , Hiroshi Yamada , Hideyuki Santo , Shin Hasegawa , Suzuka Karato , Kohsuke Nagata , Koh Ohnuma
CPC分类号: G03G9/08755 , C08G18/4219 , C08G18/4247 , C08G18/755 , C08L67/00 , C08G18/10 , C08G18/3253
摘要: A toner includes a polyester resin including a polyester resin component A (A) insoluble in tetrahydrofuran; and a polyester resin component B (B) soluble in tetrahydrofuran. The toner has a first glass transition temperature (Tg1st) of from 20° C. to 50° C., measured at a first temperature rising in differential scanning calorimetry (DSC), and satisfies the following formulae (1) and (2): T=1/{a/(TgA+273)+b/(TgB+273)}−273 (1) T−TgAB>30×a (2) wherein a and b represent weight ratios of (A) and (B) to a total weight of (A) and (B), and satisfy the equation a+b=1; and TgA, TgB and TgAB represent second glass transition temperatures (Tg2nd), measured at a second temperature rising in differential scanning calorimetry, of (A), (B), and a mixture of (A) and (B), respectively.
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