Patents by Inventor Yoshihiko Tomita
Yoshihiko Tomita 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: 11922601Abstract: A medical image processing apparatus includes: an obtaining unit configured to obtain a first image that is a motion contrast en-face image of an eye to be examined; and an image quality improving unit configured to generate a second image with at least one of lower noise and higher contrast than the obtained first image using the obtained first image as input data that is input into an image quality improving engine, wherein the image quality improving engine includes a machine learning engine that has been obtained by using training data including a second image with at least one of lower noise and higher contrast than a first image that is a motion contrast en-face image of an eye to be examined.Type: GrantFiled: April 6, 2021Date of Patent: March 5, 2024Assignee: CANON KABUSHIKI KAISHAInventors: Yoshihiko Iwase, Manabu Yamazoe, Hideaki Mizobe, Hiroki Uchida, Ritsuya Tomita
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Publication number: 20230145168Abstract: In an ingredient for a secondary cell separator coating material including a core shell particle including a core layer containing a first polymer and a shell layer covering the first polymer and including a second polymer, the first polymer has a repeating unit derived from alkyl (meth)acrylate; the second polymer has a repeating unit derived from (meth)acrylamide of 40 to 97% by mass, and a repeating unit derived from a carboxy group-containing vinyl monomer of 3 to 60% by mass; and a ratio of the second polymer to the first polymer is 4 to 250.Type: ApplicationFiled: April 9, 2021Publication date: May 11, 2023Inventors: Yoshihiko TOMITA, Tsuyoshi MATSUMOTO, Yasuyuki KAGAWA, Toshihiro YOSHIMURA
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Publication number: 20230146327Abstract: In an ingredient for a secondary cell separator coating material including a water-soluble polymer having a repeating unit derived from methacrylamide and a repeating unit derived from a carboxy group-containing vinyl monomer, a content ratio of the repeating unit derived from the methacrylamide is 60% by mass or more and 97% by mass or less, and a content ratio of the repeating unit derived from the carboxy group-containing vinyl monomer is 3% by mass or more and 40% by mass or less with respect to the total amount of the water-soluble polymer; a weight average molecular weight of the water-soluble polymer is 20000 or more and 200000 or less; and a glass transition temperature of the water-soluble polymer is 200° C. or more.Type: ApplicationFiled: April 9, 2021Publication date: May 11, 2023Inventors: Yoshihiko TOMITA, Tsuyoshi MATSUMOTO, Yasuyuki KAGAWA, Toshihiro YOSHIMURA
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Publication number: 20230119028Abstract: A magnesium alloy/resin composite structure (106) including a magnesium alloy member (103) and a resin member (105) integrated to the magnesium alloy member (103) and made of a thermoplastic resin composition, in which the magnesium alloy member (103) surface to which the resin member (105) is not integrated is coated with a layer including a manganese atom, an oxygen atom, and a sulfur atom.Type: ApplicationFiled: December 21, 2022Publication date: April 20, 2023Applicant: MITSUI CHEMICALS, INC.Inventors: Mizue KURIYAGAWA, Yoshihiko TOMITA, Hiroshi OKUMURA
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Publication number: 20210308916Abstract: A metal-resin composite structure (106) is formed by bonding a metal member (103) and a resin member (105) formed of a resin composition. A surface roughness measured regarding six linear portions in total including three arbitrary linear portions parallel with each other and another three arbitrary linear portions perpendicular to the former three linear portions on a surface (110) of the metal member (103), based on JIS B0601 (corresponding international standard: ISO4287) satisfies both Requirements (1) and (2). (1) An average value of ten point average roughnesses (Rz) at an evaluated length of 4 mm is smaller than 20 ?m. (2) An average value of mean width of the profile elements (RSm) at an evaluated length of 4 mm is equal to or greater than 20 ?m and smaller than 77 ?m.Type: ApplicationFiled: June 16, 2021Publication date: October 7, 2021Applicant: MITSUI CHEMICALS, INC.Inventors: Kazuki KIMURA, Haruka SUGITA, Yoshihiko TOMITA
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Publication number: 20210252756Abstract: The metal/resin composite structure (106) of the present invention includes a metal member (103), a resin member (105) which is integrated to the metal member (103) and is formed of a resin composition containing a thermoplastic resin, and an inorganic particle layer (107) which is provided between the metal member (103) and the resin member (105) and is formed of inorganic particles. Moreover, the metal member (103) has a fine uneven shape (104) at least on a surface of an integrating part with the resin member (105), the inorganic particle layer (107) is formed to cover a part or an entirety of the fine uneven shape (104) of the metal member (103), and the metal member (103) and the resin member (105) are integrated to each other through the inorganic particle layer (107).Type: ApplicationFiled: September 21, 2018Publication date: August 19, 2021Applicant: MITSUI CHEMICALS, INC.Inventors: Kazuki KIMURA, Yoshihiko TOMITA, Takahiro TOMINAGA, Junya SHIMAZAKI
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Publication number: 20210008768Abstract: A magnesium alloy/resin composite structure including a magnesium alloy member and a resin member integrated to the magnesium alloy member and made of a thermoplastic resin composition, in which the magnesium alloy member surface to which the resin member is not integrated is coated with a layer including a manganese atom, an oxygen atom, and a sulfur atom.Type: ApplicationFiled: March 7, 2019Publication date: January 14, 2021Applicant: MITSUI CHEMICALS, INC.Inventors: Mizue KURIYAGAWA, Yoshihiko TOMITA, Hiroshi OKUMURA
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Publication number: 20190299503Abstract: A metal-resin composite structure (106) is formed by bonding a metal member (103) and a resin member (105) formed of a resin composition. A surface roughness measured regarding six linear portions in total including three arbitrary linear portions parallel with each other and another three arbitrary linear portions perpendicular to the former three linear portions on a surface (110) of the metal member (103), based on JIS B0601 (corresponding international standard: ISO4287) satisfies both Requirements (1) and (2). (1) An average value of ten point average roughnesses (Rz) at an evaluated length of 4 mm is smaller than 20 ?m. (2) An average value of mean width of the profile elements (RSm) at an evaluated length of 4 mm is equal to or greater than 20 ?m and smaller than 77 ?m.Type: ApplicationFiled: May 26, 2017Publication date: October 3, 2019Applicant: Mitsui Chemicals, Inc.Inventors: Kazuki KIMURA, Haruka SUGITA, Yoshihiko TOMITA
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Patent number: 10199652Abstract: The invention of the present application addresses the problem of providing a binder for electrochemical cells which exhibits sufficient adhesive properties with respect to collectors and active materials, which is electrochemically stable, which is not readily swelled by electrolytes, and with which battery cycle characteristic can be sufficiently improved. Accordingly, provided is a binder for electrochemical cells which comprises a polyolefin copolymer (A) including structural units derived from an olefin, and structural units derived from (meth)acrylic acid. The carboxylic acid included in the structural units derived from the (meth)acrylic acid is neutralized by at least one non-volatile alkali compound and at least one volatile alkali compound.Type: GrantFiled: December 1, 2014Date of Patent: February 5, 2019Assignee: MITSUI CHEMICALS, INC.Inventors: Gen Miyata, Yoshihiko Tomita, Atsuko Tachibana, Yu Iimuro, Wengon Yah
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Patent number: 9611568Abstract: It is an object of the present invention to obtain crimped conjugated fibers having excellent crimp properties. The present invention provides a crimped conjugated fiber having a crimpable cross-sectional configuration, wherein a cross section of the fiber includes at least two portions: a portion (a) and a portion (b); the portion (a) includes an olefin polymer (A) and the portion (b) includes an olefin polymer (B); the olefin polymer (A) differs from the olefin polymer (B) in at least any one of Mz/Mw, melting point and MFR; and a specific fatty acid amide is added to the olefin polymer (A) and/or the olefin polymer (B). The present invention also provides a non-woven fabric including said crimped conjugated fiber.Type: GrantFiled: May 10, 2012Date of Patent: April 4, 2017Assignee: MITSUI CHEMICALS, INC.Inventors: Yoshihisa Kawakami, Kenichi Suzuki, Yoshihiko Tomita
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Publication number: 20160308215Abstract: The invention of the present application addresses the problem of providing a binder for electrochemical cells which exhibits sufficient adhesive properties with respect to collectors and active materials, which is electrochemically stable, which is not readily swelled by electrolytes, and with which battery cycle characteristic can be sufficiently improved. Accordingly, provided is a binder for electrochemical cells which comprises a polyolefin copolymer (A) including structural units derived from an olefin, and structural units derived from (meth)acrylic acid. The carboxylic acid included in the structural units derived from the (meth)acrylic acid is neutralized by at least one non-volatile alkali compound and at least one volatile alkali compound.Type: ApplicationFiled: December 1, 2014Publication date: October 20, 2016Applicant: MITSUI CHEMICALS, INC.Inventors: Gen MIYATA, Yoshihiko TOMITA, Atsuko TACHIBANA, Yu IIMURO, Wengon YAH
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Publication number: 20140066873Abstract: It is an object of the present invention to obtain crimped conjugated fibers having excellent crimp properties. The present invention provides a crimped conjugated fiber having a crimpable cross-sectional configuration, wherein a cross section of the fiber includes at least two portions: a portion (a) and a portion (b); the portion (a) includes an olefin polymer (A) and the portion (b) includes an olefin polymer (B); the olefin polymer (A) differs from the olefin polymer (B) in at least any one of Mz/Mw, melting point and MFR; and a specific fatty acid amide is added to the olefin polymer (A) and/or the olefin polymer (B). The present invention also provides a non-woven fabric including said crimped conjugated fiber.Type: ApplicationFiled: May 10, 2012Publication date: March 6, 2014Applicant: MITSUI CHEMICALS, INC.Inventors: Yoshihisa Kawakami, Kenichi Suzuki, Yoshihiko Tomita
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Publication number: 20140051313Abstract: An object of the invention is to develop fibers which include an olefin polymer and are suitable to form a nonwoven fabric, and to develop such nonwoven fabrics. The invention provides a fiber including an olefin polymer composition including 100 parts by weight of an olefin polymer and 0.1 to 30 parts by weight of an acid-form anionic surfactant, the acid-form anionic surfactant having been melt kneaded in the fiber.Type: ApplicationFiled: April 23, 2012Publication date: February 20, 2014Applicant: MITSUI CHEMICALS, INC.Inventors: Yoshihiko Tomita, Kenichi Suzuki, Daisuke Sugawara
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Publication number: 20120322329Abstract: A fiber comprising an olefin polymer composition including, based on 100 parts by weight of an olefin polymer, 0.5 to 5 parts by weight of a di-fatty acid ester of a poly(oxyalkylene)diol represented by formula (1) described below and 0.01 to 2.5 parts by weight of a poly(oxyalkylene)sorbitan tri-fatty acid ester (the alkylene group being ethylene, propylene or butylene group, the number of added moles being 10 to 40, and the fatty acid being an alkyl or alkylene fatty acid having a carbon number of 12 to 18). R1—COO—(CnH2nO)a—C6H12—O(CnH2nO)b—CO—R2 . . . (Formula 1) [wherein R1 and R2 represent an alkyl group having a carbon number of 11 to 17 and may be the same or different, n in (CnH2nO)a and (CnH2nO)b is an integer of 2 to 4, and a+b is 5 to 23]. The fiber can provide reduced smoke emission during production of a nonwoven fabric.Type: ApplicationFiled: March 11, 2011Publication date: December 20, 2012Applicant: MITSUI CHEMICALS, INCInventors: Taro Ichikawa, Yoshihisa Kawakami, Yoshihiko Tomita
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Patent number: 7592054Abstract: An ink jet recording medium which is excellent in ink absorptivity, color density, gloss, water resistance, light fastness and yellowing resistance, in particular, ink absorptivity, color density, light fastness and yellowing resistance. The ink jet recording medium comprises at least one ink receptive layer containing polymeric organic particles provided on a support, wherein the polymeric organic particles have a glass transition temperature (Tg) of 40° C. or higher and are amphoteric polymeric organic particles having both of the functional groups of a cationic group and an anionic group on the surface thereof.Type: GrantFiled: August 6, 2003Date of Patent: September 22, 2009Assignee: Mitsui Chemicals, Inc.Inventors: Tadashi Ishida, Yoshihiko Tomita, Masaya Kusumoto
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Publication number: 20070242124Abstract: Disclosed are organic particles for an inkjet recording sheet comprising a copolymer (a) which is obtained by copolymerizing alicyclic (meth)acrylate (A) represented by the formula (1) and other monomer (B) copolymerizable with (A): wherein R represents a hydrogen atom or a methyl group; and R1 represents an alicyclic hydrocarbon group having 8 to 20 carbon atoms.Type: ApplicationFiled: May 17, 2005Publication date: October 18, 2007Applicant: Mitsui Chemicals, Inc.Inventors: Yoshihiko Tomita, Masaya Kusumoto, Yasuo Okada
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Publication number: 20060110552Abstract: An ink jet recording medium which is excellent in ink absorptivity, color density, gloss, water resistance, light fastness and yellowing resistance, in particular, ink absorptivity, color density, light fastness and yellowing resistance. The ink jet recording medium comprises at least one ink receptive layer containing polymeric organic particles provided on a support, wherein the polymeric organic particles have a glass transition temperature (Tg) of 40° C. or higher and are amphoteric polymeric organic particles having both of the functional groups of a cationic group and an anionic group on the surface thereof.Type: ApplicationFiled: August 6, 2003Publication date: May 25, 2006Applicant: Mitsui Chemicals, Inc.Inventors: Tadashi Ishida, Yoshihiko Tomita, Masaya Kusumoto
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Publication number: 20040234709Abstract: An ink jet recording medium for pigment ink, comprising a support and, superimposed thereon, at least one ink receptive layer, characterized in that at least one of the at least one ink receptive layer is a layer composed of particles of a copolymer of 80° C. or higher glass transition temperature prepared from styrene and/or methyl methacrylate (A) and another copolymerizable monomer (B), the particles having a weight average particle diameter of 50 to 500 nm. This ink jet recording medium for pigment ink is excellent in yellowing resistance, ink absorptivity, color density and water resistance and has glossy surface.Type: ApplicationFiled: January 16, 2004Publication date: November 25, 2004Inventors: Tadashi Ishida, Masaya Kusumoto, Yoshihiko Tomita, Sota Ito, Hajime Mizutani, Hiroyuki Onishi, Masaya Shibatani
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Publication number: 20040209016Abstract: An ink jet recording medium comprising a support and, on the support, at least one layer comprising cationic organic particles which have a glass transition temperature of from 70 to 130° C. and comprise (A) 0.1 to 10% by weight of a monomer having a hindered amine type functional group, (B) 0.1 to 10% by weight of a monomer having a benzotriazole type functional group and (C) 80 to 99.8% by weight of a monomer selected from styrene and acrylic monomers.Type: ApplicationFiled: January 16, 2004Publication date: October 21, 2004Inventors: Tadashi Ishida, Masaya Kusumoto, Yoshihiko Tomita, Sota Ito, Hiroyuki Onishi, Masahiro Hanmura
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Publication number: 20040170778Abstract: A sheet for ink jet recording, comprising a sheet support and at least one ink receptive layer containing organic particles superimposed on a recording surface side of the sheet support, which sheet for ink jet recording has a recording surface exhibiting an angle of contact of dropped water with the recording surface, measured 10 sec after dropping of 4 &mgr;l of pure water on the recording surface, of 90° or more and exhibiting an angle of contact of dropped ink with the recording surface, measured 1 sec after dropping of 4 &mgr;l of ink on the recording surface, of 30° or less.Type: ApplicationFiled: January 5, 2004Publication date: September 2, 2004Inventors: Yoshihiko Tomita, Masaya Kusumoto, Tadashi Ishida