Patents by Inventor Hitoshi Sano
Hitoshi Sano has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10474049Abstract: By controlling the migration to the toner particle surface of the crystalline polyester present in the toner particle, a toner is provided that exhibits an excellent durability in long-term use, a stable charging performance after holding in a high-temperature, high-humidity environment, and an excellent low-temperature fixability, in which the toner having a toner particle that contains an amorphous resin, a crystalline polyester, and a wax, wherein the toner particle includes, at the surface thereof, a coat layer containing a cyclic polyolefin resin.Type: GrantFiled: March 20, 2019Date of Patent: November 12, 2019Assignee: CANON KABUSHIKI KAISHAInventors: Yuto Onozaki, Masayuki Hama, Takeshi Hashimoto, Ichiro Kanno, Hitoshi Sano, Akifumi Matsubara, Nozomu Komatsu, Takakuni Kobori, Hiroyuki Fujikawa, Tsubasa Fujisaki
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Publication number: 20190339629Abstract: A toner comprising a toner particle including a binder resin and a crystalline polyester resin, wherein the binder resin is an amorphous polyester resin having a linear alkyl group at a molecular chain terminal; the crystalline polyester resin is a polycondensate of a diol and a dicarboxylic acid; the number of carbon atoms CaPES of the linear alkyl group, the number of carbon atoms COH of the diol, and the number of carbon atoms CAc of the dicarboxylic acid, excluding carbon that belongs to carboxyl groups, satisfy the following relationships; and a glass transition temperature of the toner as measured by a differential scanning calorimeter is from 40.0° C. to 55.0° C. 8?CaPES?20??(1) CAc/COH?3.5 and 0?|CAc?CaPES|?3??(2) COH/CAc?3.Type: ApplicationFiled: April 8, 2019Publication date: November 7, 2019Inventors: Daisuke Yamashita, Yuichi Mizo, Koh Ishigami, Masaharu Miura, Takaho Shibata, Takeshi Ohtsu, Yosuke Iwasaki, Wakiko Katsumata, Hitoshi Sano, Kenta Mitsuiki, Takakuni Kobori, Rei Hijikawa
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Patent number: 10451986Abstract: According to the present invention, in a toner including a toner particle containing a binder resin and a low molecular aromatic hydrocarbon, the binder resin contains a polyester resin, at least one kind of a unit derived from an aromatic monocarboxylic acid and a unit derived from an aromatic monoalcohol is contained, and the low molecular aromatic hydrocarbon has 1 or more and 4 or less benzene rings, and has a melting point of 60° C. or more and 120° C. or less.Type: GrantFiled: March 6, 2018Date of Patent: October 22, 2019Assignee: CANON KABUSHIKI KAISHAInventors: Hitoshi Sano, Takeshi Hashimoto, Masayuki Hama, Ichiro Kanno, Yuto Onozaki, Akifumi Matsubara, Megumi Ikeda, Nozomu Komatsu, Takakuni Kobori, Hiroyuki Fujikawa
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Patent number: 10439964Abstract: An approach is presented for interacting with a messaging user interface. A presentation is caused, at least in part, of a messaging user interface associated with one or more messaging services at a device. Presentation of a user interface element providing a link to one or more communications sessions corresponding to the messaging services is caused, at least in part. Selection of the user interface element causes, at least in part, presentation of representations of the communications sessions as one or more overlay elements on the user interface.Type: GrantFiled: April 4, 2011Date of Patent: October 8, 2019Assignee: Nokia Technologies OyInventors: Hitoshi Sano, Sangita Shah, Premal Pankaj Jhaveri, Natalie Jhaveri, Patrick Arsenault, Teresa Hunkeler
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Patent number: 10401748Abstract: A toner comprises a toner particle containing an amorphous polyester, wherein the amorphous polyester contains an amorphous polyester 1, the amorphous polyester contains a tin compound and a titanium compound, a Sn/Ti abundance ratio between Sn and Ti in the amorphous polyester according to x-ray fluorescence analysis is 20/80 to 80/20, and a weight-average molecular weight Mw1 of the amorphous polyester 1 according to measurement by gel permeation chromatography (GPC) is Mw1<7,000.Type: GrantFiled: May 22, 2017Date of Patent: September 3, 2019Assignee: CANON KABUSHIKI KAISHAInventors: Takeshi Hashimoto, Nozomu Komatsu, Yuto Onozaki, Akifumi Matsubara, Ichiro Kanno, Hitoshi Sano, Tsubasa Fujisaki, Masayuki Hama, Takakuni Kobori, Hiroyuki Fujikawa
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Publication number: 20190219939Abstract: By controlling the migration to the toner particle surface of the crystalline polyester present in the toner particle, a toner is provided that exhibits an excellent durability in long-term use, a stable charging performance after holding in a high-temperature, high-humidity environment, and an excellent low-temperature fixability, in which the toner having a toner particle that contains an amorphous resin, a crystalline polyester, and a wax, wherein the toner particle includes, at the surface thereof, a coat layer containing a cyclic polyolefin resin.Type: ApplicationFiled: March 20, 2019Publication date: July 18, 2019Inventors: Yuto Onozaki, Masayuki Hama, Takeshi Hashimoto, Ichiro Kanno, Hitoshi Sano, Akifumi Matsubara, Nozomu Komatsu, Takakuni Kobori, Hiroyuki Fujikawa, Tsubasa Fujisaki
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Publication number: 20190107791Abstract: A toner having chargeability and fluidity that do not change to a great extent is provided. The toner includes toner particles containing a binder resin and includes inorganic fine particles A, wherein the shape factor SF-2 of primary particles of the inorganic fine particles A is 116 or less, and regarding the particle size distribution on a volume basis of the inorganic fine particles A on the toner particle surfaces, the particle diameter when a cumulative value from the small particle side reaches 16% by volume is denoted as D16, the particle diameter when a cumulative value reaches 50% by volume is denoted as D50, and the particle diameter when a cumulative value reaches 84% by volume is denoted as D84, D50 is 80 nm or more and 200 nm or less, and the particle size distribution indicator A represented by D84/D16 is 1.70 or more and 2.60 or less.Type: ApplicationFiled: December 4, 2018Publication date: April 11, 2019Inventors: Nozomu Komatsu, Masayuki Hama, Takeshi Hashimoto, Ichiro Kanno, Yuto Onozaki, Megumi Ikeda, Akifumi Matsubara, Hitoshi Sano, Takakuni Kobori, Hiroyuki Fujikawa
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Patent number: 10232176Abstract: A biological signal display apparatus includes: a stimulation unit which performs stimulation on a living body; a measurement unit which measures an evoked response evoked by the stimulation; a calculator which calculates a feature amount of the evoked response; a display unit; and a display controller which, based on the feature amount calculated by the calculator, displays a bar-shaped image on the display unit, each time when the stimulation is performed, the bar-shaped image corresponding with the evoked response on the display unit.Type: GrantFiled: October 6, 2011Date of Patent: March 19, 2019Assignee: NIHON KOHDEN CORPORATIONInventors: Munehito Okada, Hitoshi Sano, Tetsuro Tatsuoka
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Patent number: 10197936Abstract: Provided is a toner including toner particles each containing an amorphous polyester resin and a wax, in which: the surface of each of the toner particles has a coating layer; and the coating layer contains one or more kinds of olefin-based copolymers each having a specific ester moiety.Type: GrantFiled: November 9, 2017Date of Patent: February 5, 2019Assignee: CANON KABUSHIKI KAISHAInventors: Yuto Onozaki, Takeshi Hashimoto, Ichiro Kanno, Masayuki Hama, Hitoshi Sano, Nozomu Komatsu, Takakuni Kobori, Hiroyuki Fujikawa, Hayato Ida
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Patent number: 10175595Abstract: Provided is a toner including a toner particle that contains a toner base particle containing a binder resin and a wax, and a coating layer containing a 1,2-polybutadiene resin at the surface of the toner base particle, wherein the coverage ratio of the toner base particle by the coating layer is at least 50%.Type: GrantFiled: November 15, 2017Date of Patent: January 8, 2019Assignee: CANON KABUSHIKI KAISHAInventors: Yuto Onozaki, Takeshi Hashimoto, Ichiro Kanno, Megumi Ikeda, Masayuki Hama, Nozomu Komatsu, Akifumi Matsubara, Hitoshi Sano, Takakuni Kobori, Hayato Ida, Hiroyuki Fujikawa
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Patent number: 10146146Abstract: A toner comprising a toner particle containing a binder resin, a wax, and inorganic fine particles, wherein the binder resin contains a crystalline polyester resin and an amorphous polyester resin, and, in a cross section of the toner particle, when Sc represents an area taken up by the crystalline polyester resin and S1 represents an area taken up by the inorganic fine particles that are present in the crystalline polyester resin portion, Sc and S1 satisfy the relationship S1/Sc?0.2.Type: GrantFiled: April 24, 2017Date of Patent: December 4, 2018Assignee: CANON KABUSHIKI KAISHAInventors: Nozomu Komatsu, Takeshi Hashimoto, Masayuki Hama, Takakuni Kobori, Ichiro Kanno, Yuto Onozaki, Hitoshi Sano, Akifumi Matsubara, Hiroyuki Fujikawa, Tsubasa Fujisaki
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Publication number: 20180314176Abstract: Provided is a toner having a toner particle including a binder resin and a colorant, wherein the colorant includes a compound represented by Formula (1) below, a crystal of the compound in the toner particle has a diffraction peak with a full width at half maximum of at least 0.400° and not more than 0.440° in a range of a diffraction angle 2? of at least 5.0° and not more than 6.0° in an X-ray diffraction spectrum using CuK? rays, in Formula (1), X1 and X2 each independently represent a hydrogen atom, a chlorine atom or a methyl group.Type: ApplicationFiled: April 17, 2018Publication date: November 1, 2018Inventors: Megumi Ikeda, lchiro Kanno, Akifumi Matsubara, Hitoshi Sano, Yuto Onozaki, Takeshi Hashimoto, Masayuki Hama, Nozomu Komatsu, Takakuni Kobori, Hiroyuki Fujikawa
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Publication number: 20180307153Abstract: Provided is a magenta toner having a toner particle containing a binder resin, a wax and a colorant, wherein the colorant contains a specific amount of a compound (1), the colorant also contains one or more compounds selected from the group consisting of a naphthol compound, a quinacridone compound and a lake compound thereof in addition to the compound (1), and the binder resin contains a specific amount of a polyester resin.Type: ApplicationFiled: June 27, 2018Publication date: October 25, 2018Inventors: Ichiro Kanno, Takeshi Hashimoto, Nozomu Komatsu, Masayuki Hama, Hitoshi Sano, Yuto Onozaki, Akifumi Matsubara, Takakuni Kobori, Hiroyuki Fujikawa, Tsubasa Fujisaki
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Publication number: 20180259867Abstract: According to the present invention, in a toner including a toner particle containing a binder resin and a low molecular aromatic hydrocarbon, the binder resin contains a polyester resin, at least one kind of a unit derived from an aromatic monocarboxylic acid and a unit derived from an aromatic monoalcohol is contained, and the low molecular aromatic hydrocarbon has 1 or more and 4 or less benzene rings, and has a melting point of 60° C. or more and 120° C. or less.Type: ApplicationFiled: March 6, 2018Publication date: September 13, 2018Inventors: HITOSHI SANO, Takeshi Hashimoto, Masayuki Hama, lchiro Kanno, Yuto Onozaki, Akifumi Matsubara, Megumi Ikeda, Nozomu Komatsu, Takakuni Kobori, Hiroyuki Fujikawa
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Publication number: 20180246434Abstract: A toner comprises toner particles each containing a binder resin and a crystalline compound represented by a specific chemical formula. The crystalline compound. exhibits a CuK? X-ray diffraction spectrum having a diffraction peak at a Bragg angle 2?±0.2 in the range of 4.0° to 5.0°. The diffraction peak has a half-value width of 0.7° or more.Type: ApplicationFiled: February 22, 2018Publication date: August 30, 2018Inventors: Ichiro Kanno, Takeshi Hashimoto, Nozomu Komatsu, Masayuki Hama, Hitoshi Sano, Yuto Onozaki, Takakuni Kobori, Hiroyuki Fujikawa
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Patent number: 10048610Abstract: A toner containing a toner particle containing a binding resin and a colorant and an inorganic fine particle, in which the inorganic fine particle is a silica particle containing aluminum and the content of the aluminum in the silica particle is 0.2 ppm or more and 200 ppm or less.Type: GrantFiled: December 20, 2016Date of Patent: August 14, 2018Assignee: CANON KABUSHIKI KAISHAInventors: Ichiro Kanno, Takeshi Hashimoto, Masayuki Hama, Hitoshi Sano, Nozomu Komatsu, Tsubasa Fujisaki, Takakuni Kobori, Hiroyuki Fujikawa
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Patent number: 10036970Abstract: Provided is a magenta toner having a toner particle containing a binder resin, a wax and a colorant, wherein the colorant contains a specific amount of a compound (1), the colorant also contains one or more compounds selected from the group consisting of a naphthol compound, a quinacridone compound and a lake compound thereof in addition to the compound (1), and the binder resin contains a specific amount of a polyester resin.Type: GrantFiled: June 2, 2017Date of Patent: July 31, 2018Assignee: CANON KABUSHIKI KAISHAInventors: Ichiro Kanno, Takeshi Hashimoto, Nozomu Komatsu, Masayuki Hama, Hitoshi Sano, Yuto Onozaki, Akifumi Matsubara, Takakuni Kobori, Hiroyuki Fujikawa, Tsubasa Fujisaki
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Publication number: 20180149992Abstract: Provided is a toner including toner particles each containing an amorphous polyester resin and a wax, in which: the surface of each of the toner particles has a coating layer; and the coating layer contains one or more kinds of olefin-based copolymers each having a specific ester moiety.Type: ApplicationFiled: November 9, 2017Publication date: May 31, 2018Inventors: Yuto Onozaki, Takeshi Hashimoto, lchiro Kanno, Masayuki Hama, Hitoshi Sano, Nozomu Komatsu, Takakuni Kobori, Hiroyuki Fujikawa, Hayato Ida
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Publication number: 20180149990Abstract: Provided is a toner including a toner particle that contains a toner base particle containing a binder resin and a wax, and a coating layer containing a 1,2-polybutadiene resin at the surface of the toner base particle, wherein the coverage ratio of the toner base particle by the coating layer is at least 50%.Type: ApplicationFiled: November 15, 2017Publication date: May 31, 2018Inventors: Yuto Onozaki, Takeshi Hashimoto, lchiro Kanno, Megumi Ikeda, Masayuki Hama, Nozomu Komatsu, Akifumi Matsubara, Hitoshi Sano, Takakuni Kobori, Hayato Ida, Hiroyuki Fujikawa
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Publication number: 20170357168Abstract: Provided is a magenta toner having a toner particle containing a binder resin, a wax and a colorant, wherein the colorant contains a specific amount of a compound (1), the colorant also contains one or more compounds selected from the group consisting of a naphthol compound, a quinacridone compound and a lake compound thereof in addition to the compound (1), and the binder resin contains a specific amount of a polyester resin.Type: ApplicationFiled: June 2, 2017Publication date: December 14, 2017Inventors: Ichiro Kanno, Takeshi Hashimoto, Nozomu Komatsu, Masayuki Hama, Hitoshi Sano, Yuto Onozaki, Akifumi Matsubara, Takakuni Kobori, Hiroyuki Fujikawa, Tsubasa Fujisaki