Patents by Inventor Kazusei Yoshida
Kazusei Yoshida 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: 11879040Abstract: Resin particles include mother particles containing a biodegradable resin and a plasticizer, in which an amount of a metal element having an ionic valence of 2 or more, obtained by fluorescent X-ray analysis, is 0.002% by mass or more and 2.0% by mass or less with respect to a total amount of the resin particles.Type: GrantFiled: October 20, 2021Date of Patent: January 23, 2024Assignee: FUJIFILM Business Innovation Corp.Inventors: Kazusei Yoshida, Masahiro Oki, Hideaki Yoshikawa, Kenji Yao, Tetsuya Taguchi
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Publication number: 20230391970Abstract: A cellulosic particle contains cellulose as its base constituent. If hydrophobized silica particles are attached to the cellulosic particle, the percentage detachment upon sonication of the silica particles is 50% or less.Type: ApplicationFiled: November 29, 2022Publication date: December 7, 2023Applicant: FUJIFILM Business Innovation Corp.Inventors: Kenji YAO, Ayu NAITO, Kazusei YOSHIDA, Yuko IWADATE, Masahiro OKI, Tetsuya TAGUCHI, Hirokazu HAMANO, Takahiro ISHIZUKA, Hideaki YOSHIKAWA
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Publication number: 20230312842Abstract: A cellulosic particle contains cellulose as its base constituent, and the 5-day and 60-day percentage biodegradations of the cellulosic particle measured as per JIS K6950:2000 are lower than 20% and 60% or higher, respectively.Type: ApplicationFiled: January 6, 2023Publication date: October 5, 2023Applicant: FUJIFILM Business Innovation Corp.Inventors: Kenji YAO, Masahiro Oki, Hideaki Yoshikawa, Kazusei Yoshida, Ayu Naito, Yuko Iwadate, Takahiro Ishizuka, Tetsuya Taguchi, Hirokazu Hamano, Satomi Kashiwagi
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Publication number: 20230303781Abstract: A cellulosic particle contains 90 parts by mass or more and 99.5 parts by mass or less of cellulose; and 0.5 parts by mass or more and 10 parts by mass or less of a cellulose derivative.Type: ApplicationFiled: November 9, 2022Publication date: September 28, 2023Applicant: FUJIFILM Business Innovation Corp.Inventors: Kenji YAO, Kazusei YOSHIDA, Ayu NAITO, Yuko IWADATE, Takahiro ISHIZUKA, Tetsuya TAGUCHI, Hirokazu HAMANO, Masahiro OKI, Hideaki YOSHIKAWA
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Patent number: 11732099Abstract: Resin particles include mother particles containing a biodegradable resin, in which an alkali metal atomic weight A present on a resin particle surface with respect to a total atomic weight present on the resin particle surface, which is measured by an X-ray photoelectron spectroscopy, and an alkali metal atomic weight B present in the resin particles with respect to the total atomic weight present on the resin particles, which is measured by a fluorescent X-ray spectroscopy, satisfy a relationship of 0?(A/B)<0.15 and 0.005 atomic %?B?0.5 atomic %.Type: GrantFiled: October 21, 2021Date of Patent: August 22, 2023Assignee: FUJIFILM Business Innovation Corp.Inventors: Hideaki Yoshikawa, Kenji Yao, Masahiro Oki, Kazusei Yoshida, Tetsuya Taguchi
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Publication number: 20230250262Abstract: A cellulosic particle contains a first component that is cellulose; and a second component that is at least one selected from the group consisting of a fatty acid derivative (A), an aromatic compound having a long-chain aliphatic group and at least one of a phenolic hydroxyl group or a monoglycidyl ether group directly bound to an aromatic group (B), and a (meth)acrylic compound (C).Type: ApplicationFiled: November 20, 2022Publication date: August 10, 2023Applicant: FUJIFILM Business Innovation Corp.Inventors: Kenji YAO, Hideaki YOSHIKAWA, Takahiro ISHIZUKA, Hirokazu HAMANO, Tetsuya TAGUCHI, Masahiro OKI, Yuko IWADATE, Kazusei YOSHIDA, Ayu NAITO
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Publication number: 20230250241Abstract: A cellulosic particle includes: a cellulose-based core particle; a first coating layer covering the core particle and containing a polyamine compound; and a second coating layer covering the first coating layer and containing at least one selected from the group consisting of a wax, a linear-chain saturated fatty acid, a hydroxy fatty acid, and an amino acid compound.Type: ApplicationFiled: October 26, 2022Publication date: August 10, 2023Applicant: FUJIFILM Business Innovation Corp.Inventors: Kenji YAO, Hideaki YOSHIKAWA, Masahiro OKI, Kazusei YOSHIDA, Ayu NAITO, Yuko IWADATE, Takahiro ISHIZUKA, Tetsuya TAGUCHI, Hirokazu HAMANO
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Publication number: 20220306823Abstract: Resin particles include mother particles containing a biodegradable resin, in which an alkali metal atomic weight A present on a resin particle surface with respect to a total atomic weight present on the resin particle surface, which is measured by an X-ray photoelectron spectroscopy, and an alkali metal atomic weight B present in the resin particles with respect to the total atomic weight present on the resin particles, which is measured by a fluorescent X-ray spectroscopy, satisfy a relationship of 0?(A/B)<0.15 and 0.005 atomic %?B?0.5 atomic %.Type: ApplicationFiled: October 21, 2021Publication date: September 29, 2022Applicant: FUJIFILM Business Innovation Corp.Inventors: Hideaki YOSHIKAWA, Kenji YAO, Masahiro OKI, Kazusei YOSHIDA, Tetsuya TAGUCHI
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Publication number: 20220306842Abstract: Resin particles include mother particles containing a biodegradable resin, and a coating layer containing at least one selected from the group consisting of a quaternary ammonium salt-containing polymer, polyacrylamide, polyvinylpyrrolidone, and polylysine on a surface of the mother particles.Type: ApplicationFiled: October 19, 2021Publication date: September 29, 2022Applicant: FUJIFILM Business Innovation Corp.Inventors: Masahiro OKI, Kenji YAO, Hideaki YOSHIKAWA, Kazusei YOSHIDA, Tetsuya TAGUCHI
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Publication number: 20220306818Abstract: Resin particles include mother particles containing a biodegradable resin and a plasticizer, in which an amount of a metal element having an ionic valence of 2 or more, obtained by fluorescent X-ray analysis, is 0.002% by mass or more and 2.0% by mass or less with respect to a total amount of the resin particles.Type: ApplicationFiled: October 20, 2021Publication date: September 29, 2022Applicant: FUJIFILM Business Innovation Corp.Inventors: Kazusei YOSHIDA, Masahiro OKI, Hideaki YOSHIKAWA, Kenji YAO, Tetsuya TAGUCHI
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Publication number: 20220169833Abstract: [Problem] To provide a resin particle having excellent heat resistance and flexibility. [Solution] A resin particle in which a mass loss rate after being immersed in distilled water at 70° C. for 14 days is less than 10%, and in which a mass loss rate after being left in a compost having a composition shown below at 55° C. for 14 days is 90% or more.Type: ApplicationFiled: May 17, 2021Publication date: June 2, 2022Applicant: FUJIFILM BUSINESS INNOVATION CORP.Inventors: Kenji YAO, Hideaki YOSHIKAWA, Masahiro OKI, Kazusei YOSHIDA, Tetsuya TAGUCHI
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Publication number: 20210403660Abstract: A biodegradable resin particle, includes: a base particle containing a biodegradable resin; a first layer on a surface of the base particle, the first layer containing at least one cationic resin of a polyalkyleneimine, a polyallylamine and a polyvinylamine; and a second layer on the first layer, the second layer containing an anionic or nonionic hydrophobic compound.Type: ApplicationFiled: April 29, 2021Publication date: December 30, 2021Applicant: FUJIFILM BUSINESS INNOVATION CORP.Inventors: Masahiro OKI, Kenji YAO, Hideaki YOSHIKAWA, Takeshi IWANAGA, Kazusei YOSHIDA, Tetsuya TAGUCHI
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Publication number: 20180284632Abstract: A liquid developer includes toner particles and a carrier liquid, wherein the toner particles include, as a binder resin, an amorphous polyester resin and a crystalline saturated aliphatic polyester resin having a composition ratio (C/O ratio) of carbon atoms and oxygen atoms of 3.4 or less, and with respect to a toner obtained by vacuum drying the toner particles, a crystal melting peak at a first temperature rise in differential heating calorimetry is 60° C. or more.Type: ApplicationFiled: October 27, 2017Publication date: October 4, 2018Applicant: FUJI XEROX CO., LTD.Inventors: Fumiaki MERA, Daisuke YOSHINO, Masahiro OKI, Yoshitake OGURA, Takako KOBAYASHI, Kazusei YOSHIDA, Manabu KAWASHIMA, Akira IMAI, Tetsuya TAGUCHI
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Publication number: 20180275549Abstract: A liquid developer includes toner particles containing, as a binder resin, at least a polyester resin containing a monomer unit, which includes a linear or branched chain saturated hydrocarbon chain having 2 to 5 carbon atoms between ester bonds, in a range of from 5 mol % to 25 mol % with respect to all monomer units included in the polyester resin, and a colorant; and a carrier liquid including an insulating liquid.Type: ApplicationFiled: December 4, 2017Publication date: September 27, 2018Applicant: FUJI XEROX CO., LTD.Inventors: Kazusei YOSHIDA, Daisuke YOSHINO, Masahiro OKI, Akira IMAI, Yoshitake OGURA, Takako KOBAYASHI, Koji HORIBA, Manabu KAWASHIMA, Fumiaki MERA, Tetsuya TAGUCHI
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Patent number: 9798258Abstract: There is provided an electrostatic charge image developing toner containing: a toner particle containing an amorphous resin having a polyester resin segment and a styrene acrylic resin segment, and a crystalline polyester resin dispersed in the amorphous resin, wherein a loss modulus G? of the toner particles satisfies the following (1) and (2): (1) the loss modulus G? at 40° C. is from 1.0×107 Pa to 1.0×108 Pa; and (2) the loss modulus G? at the time when 60 minutes has passed from start of keeping the toner particles at 55° C. is from 1.0×108 Pa to 1.0×109 Pa.Type: GrantFiled: December 28, 2015Date of Patent: October 24, 2017Assignee: FUJI XEROX CO., LTD.Inventors: Hirofumi Shiozaki, Naomi Miyamoto, Kazusei Yoshida
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Publication number: 20170082935Abstract: There is provided an electrostatic charge image developing toner containing: a toner particle containing an amorphous resin having a polyester resin segment and a styrene acrylic resin segment, and a crystalline polyester resin dispersed in the amorphous resin, wherein a loss modulus G? of the toner particles satisfies the following (1) and (2): (1) the loss modulus G? at 40° C. is from 1.0×107 Pa to 1.0×108 Pa; and (2) the loss modulus G? at the time when 60 minutes has passed from start of keeping the toner particles at 55° C. is from 1.0×108 Pa to 1.0×109 Pa.Type: ApplicationFiled: December 28, 2015Publication date: March 23, 2017Applicant: FUJI XEROX CO., LTD.Inventors: Hirofumi SHIOZAKI, Naomi MIYAMOTO, Kazusei YOSHIDA
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Publication number: 20160282739Abstract: An electrostatic charge image developing toner includes a toner particle including a core which contains a styrene (meth)acrylic modified polyester resin and a colorant, and a shell layer which covers the core and contains a styrene (meth)acrylic modified polyester resin and a release agent.Type: ApplicationFiled: July 23, 2015Publication date: September 29, 2016Inventors: Kazusei YOSHIDA, Hirofumi SHIOZAKI, Shinpei TAKAGI
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Patent number: 9436111Abstract: An electrostatic charge image developing toner includes a toner particle including a core which contains a styrene (meth)acrylic modified polyester resin and a colorant, and a shell layer which covers the core and contains a styrene (meth)acrylic modified polyester resin and a release agent.Type: GrantFiled: July 23, 2015Date of Patent: September 6, 2016Assignee: FUJI XEROX CO., LTD.Inventors: Kazusei Yoshida, Hirofumi Shiozaki, Shinpei Takagi