Patents by Inventor Ayu NAITO
Ayu NAITO 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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Publication number: 20250134795Abstract: Cellulose particles include mother particles, containing cellulose as a principal component; and a coating layer that coats the mother particles, in which the average circularity of the cellulose particles is 0.97 or more, and the relation between carbon atom amount Cs and oxygen atom amount Os in the cellulose particles measured by X-ray photoelectron spectroscopy satisfies the formula A1: Cs/Os?2.0.Type: ApplicationFiled: August 19, 2024Publication date: May 1, 2025Applicant: FUJIFILM Business Innovation Corp.Inventors: Kazusei YOSHIDA, Ayu NAITO, Satomi KASHIWAGI, Takeshi IWANAGA, Yuko IWADATE, Sakae TAKEUCHI
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Patent number: 12187861Abstract: 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: GrantFiled: November 9, 2022Date of Patent: January 7, 2025Assignee: 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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Publication number: 20240327545Abstract: Cellulose acetate particles include cellulose acetate as a main component, in which a total degree of acyl substitution of the cellulose acetate is 0.05 or more and less than 0.70.Type: ApplicationFiled: August 30, 2023Publication date: October 3, 2024Applicant: FUJIFILM Business Innovation Corp.Inventors: Ayu NAITO, Kazusei YOSHIDA, Takeshi IWANAGA, Kenji YAO, Tetsuya TAGUCHI, Hirokazu HAMANO
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Publication number: 20240327619Abstract: Cellulose particles each include: a base particle containing cellulose as a main component; and a coating layer that covers the base particle and contains a coating material other than a coupling agent.Type: ApplicationFiled: December 18, 2023Publication date: October 3, 2024Applicant: FUJIFILM Business Innovation Corp.Inventors: Takeshi IWANAGA, Ayu NAITO, Kazusei YOSHIDA, Kenji YAO, Tetsuya TAGUCHI, Hirokazu HAMANO
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Patent number: 12065547Abstract: 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: GrantFiled: October 26, 2022Date of Patent: August 20, 2024Assignee: 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: 20240262967Abstract: A cellulosic particle contains cellulose as its base constituent, and the intensity of sodium fluorescent x-rays from the cellulosic particle measured by x-ray fluorescence analysis is 0.015 kps or more and 0.1 kps or less.Type: ApplicationFiled: August 7, 2023Publication date: August 8, 2024Applicant: FUJIFILM Business Innovation Corp.Inventors: Kenji YAO, Kazusei YOSHIDA, Ayu NAITO, Shota MATOBA, Satomi KASHIWAGI, Yuko IWADATE, Masahiro OKI, Takahiro ISHIZUKA, Takeshi IWANAGA, Hideaki YOSHIKAWA, Tetsuya TAGUCHI, Hirokazu HAMANO
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Publication number: 20240262966Abstract: A cellulosic particle contains cellulose as its base constituent, and the percentage water absorption of the cellulosic particle measured by method B in ISO 15512:1999 is 11% or more and 20% or less.Type: ApplicationFiled: August 3, 2023Publication date: August 8, 2024Applicant: FUJIFILM Business Innovation Corp.Inventors: Kenji YAO, Satomi KASHIWAGI, Shota MATOBA, Ayu NAITO, Kazusei YOSHIDA, Yuko IWADATE, Masahiro OKI, Takahiro ISHIZUKA, Hideaki YOSHIKAWA, Tetsuya TAGUCHI, Hirokazu HAMANO, Takeshi IWANAGA
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Publication number: 20240261206Abstract: A cellulosic particle contains: cellulose as its base constituent; and at least one selected from the group consisting of a hydrocarbon ester and a ketone, and the amount of the hydrocarbon ester or ketone in the cellulosic particle is 3 ppm or more and 1000 ppm or less.Type: ApplicationFiled: August 11, 2023Publication date: August 8, 2024Applicant: FUJIFILM Business Innovation Corp.Inventors: Kenji YAO, Hideaki YOSHIKAWA, Takahiro ISHIZUKA, Shota MATOBA, Ayu NAITO, Satomi KASHIWAGI, Kazusei YOSHIDA, Yuko IWADATE, Masahiro OKI, Takeshi IWANAGA, Tetsuya TAGUCHI, Hirokazu HAMANO
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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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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: 20230089029Abstract: Disclosed is a rare earth complex including: one or a plurality of rare earth ions; and a ligand forming a coordinate bond with the rare earth ions. At least a part of the rare earth ions are at least one kind selected from the group consisting of lutetium(III) ions, yttrium(III) ions, and gadolinium(III) ions. The ligand includes a residue obtained by removing one or more hydrogen atoms from a fluorescent condensed polycyclic aromatic compound.Type: ApplicationFiled: December 23, 2020Publication date: March 23, 2023Applicant: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITYInventors: Yuichi KITAGAWA, Ayu NAITO, Yasuchika HASEGAWA, Koji FUSHIMI
