Patents by Inventor Ryoma Ishii
Ryoma Ishii 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: 20220348858Abstract: Provided is a cell culture scaffold material having excellent cell adhesion. The cell culture scaffold material according to the present invention contains a peptide-conjugated polyvinyl alcohol derivative having a polyvinyl alcohol derivative portion and a peptide portion, and the peptide portion has a cyclic peptide skeleton.Type: ApplicationFiled: May 15, 2020Publication date: November 3, 2022Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Daigo KOBAYASHI, Mayumi YUKAWA, Kenta TAKAKURA, Ryoma ISHII, Hiroki IGUCHI, Yuuhei ARAI, Satoshi HANEDA, Nobuhiko INUI
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Publication number: 20220325221Abstract: Provided is a cell culture scaffold material having excellent extensibility of pseudopodia and excellent cell proliferation. The cell culture scaffold material according to the present invention contains a peptide-conjugated polyvinyl alcohol derivative having a polyvinyl alcohol derivative portion and a peptide portion, and has a hydroxyl value of 1,100 mgKOH/g or less.Type: ApplicationFiled: May 15, 2020Publication date: October 13, 2022Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Kenta TAKAKURA, Mayumi YUKAWA, Daigo KOBAYASHI, Ryoma ISHII, Hiroki IGUCHI, Yuuhei ARAI, Satoshi HANEDA, Nobuhiko INUI
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Publication number: 20220228127Abstract: Provided is a resin film having excellent cell extensibility in cell culture. The resin film formed of a scaffold material for cell culture containing a synthetic resin, the resin film having a compressive modulus of 5.5 GPa or more at a frequency of 1 Hz as measured using a nanoindenter device in ion-exchanged water in accordance with ISO14577-1 after being immersed in the ion-exchanged water at 37° C. for 24 hours.Type: ApplicationFiled: May 27, 2020Publication date: July 21, 2022Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Yuuhei ARAI, Ryoma ISHII, Hiroki IGUCHI, Satoshi HANEDA
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Publication number: 20220227898Abstract: Provided is a resin film formed of a cell culture scaffold material, which has excellent fixation of cells after seeding and is capable of enhancing proliferation rate of cells. A resin film formed of a cell culture scaffold material, in which the cell culture scaffold material contains a synthetic resin, and the resin film has phase-separated structure including least a first phase and a second phase, and a ratio of the surface area of one of the first phase and the second phase to the entire surface is 0.01 or more and 0.95 or less.Type: ApplicationFiled: May 15, 2020Publication date: July 21, 2022Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Hiroki IGUCHI, Yuuhei ARAI, Nobuhiko INUI, Mayumi YUKAWA, Daigo KOBAYASHI, Yuuta NAKAMURA, Kenta TAKAKURA, Satoshi HANEDA, Ryoma ISHII
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Publication number: 20220177825Abstract: A scaffold material for cell culture having excellent cell colonization is provided. A scaffold material for cell culture according to the present invention includes a synthetic resin having a main chain and a graft chain, wherein the graft chain has a polydentate hydrogen-bonding group represented by the following formula (1) in a side chain: *—R-(Ai)n (1) wherein R represents a group having 50 or less carbon atoms, Ai represents an amino group, a carboxyl group, a hydroxyl group, a sulfone group, an imino group, or a thiol group, i represents a natural number, n represents an integer of two or more and four or less, and * represents a bonding position with another atom constituting the graft chain; and Ai may be identical or different from each other.Type: ApplicationFiled: March 27, 2020Publication date: June 9, 2022Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Hiroki IGUCHI, Yuuta NAKAMURA, Ryoma ISHII, Yuuhei ARAI, Satoshi HANEDA
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Patent number: 11291993Abstract: Provided is a micro-fluid chip that enables reducing contamination between branch channels, has a relatively simple channel structure and facilitates miniaturization. A micro-fluid chip (1) having a channel structure (3) through which a fluid is delivered, wherein the channel structure (3) includes: a main channel (4) having an inflow port (5) and an outflow port (6); a plurality of branch channels (11) to (13) connected to the main channel (4), each branch channel having an inflow end on a side connected to the main channel (4) and an outflow end that is an end portion on an opposite side to the inflow end; and a sub-branch channel (14) connected to the main channel (4) between at least one pair of adjacent branch channels (11) and (12) among the plurality of branch channels (11) to (13), the sub-branch channel (14) having an inflow end on a side connected to the main channel (4).Type: GrantFiled: November 21, 2018Date of Patent: April 5, 2022Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Kazuhiko Imamura, Nobuhiko Inui, Shotaro Kobaru, Takamasa Kouno, Tatsunori Takamatsu, Ryoma Ishii, Ryosuke Takahashi, Tsutomu Nakamura
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Publication number: 20210121881Abstract: Provided is a micro fluid device capable of reliably performing measurement of a fluid into a branched flow path and dispensing of a predetermined amount of a fluid into a plurality of the branched flow paths.Type: ApplicationFiled: May 25, 2018Publication date: April 29, 2021Inventors: Kazuhiko Imamura, Nobuhiko Inui, Shotaro Kobaru, Takamasa Kouno, Tatsunori Takamatsu, Ryoma Ishii
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Publication number: 20210071147Abstract: A scaffolding material for culturing a stem cell, which contains a synthetic resin, and has a storage elasticity at 100° C. of 1.0×104 Pa or more and 1.0×108 Pa or less, and a ratio between the storage elasticity at 25° C. and the storage elasticity at 100° C. ((storage elasticity at 25° C.)/(storage elasticity at 100° C.)) of 1.0×101 or more and 1.0×105 or less. The scaffolding material for stem cell culture has suitable hydrophilicity and strength, high fixation of stem cells after seeding, highly efficient cell proliferation, and excellent scratch resistance.Type: ApplicationFiled: December 27, 2018Publication date: March 11, 2021Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Satoshi HANEDA, Yuriko MANABE, Ryoma ISHII, Hiroki IGUCHI, Yuhei ARAI
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Publication number: 20200407672Abstract: A scaffolding material for cell culture, which has a dispersion component ?d of the surface free energy of 24.5 mJ/m2 or more and less than 45.0 mJ/m2, and a dipole component ?p of the surface free energy of 1.0 mJ/m2 or more and less than 20.0 mJ/m2. According to the scaffolding material for cell culture, the scaffolding material can have suitable hydrophilicity and strength, high fixation of cells after seeding, and highly efficient cell proliferation.Type: ApplicationFiled: July 2, 2020Publication date: December 31, 2020Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Satoshi HANEDA, Yuriko MANABE, Ryoma ISHII, Hiroki IGUCHI, Hiroshi YAMAUCHI, Takahiro OMURA
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Publication number: 20200399576Abstract: A scaffolding material for culturing a cell, the scaffolding material for culturing a cell containing a synthetic resin, and having a nitrogen content of the synthetic resin of 0.1% by mass or more and 10% by mass or less. According to the scaffolding material for cell culture, the scaffolding material can have suitable hydrophilicity and strength, high fixation of cells after seeding, and highly efficient cell proliferation.Type: ApplicationFiled: July 2, 2020Publication date: December 24, 2020Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Satoshi HANEDA, Yuriko MANABE, Ryoma ISHII, Hiroki IGUCHI, Hiroshi YAMAUCHI, Takahiro OMURA
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Publication number: 20200370009Abstract: A scaffolding material for culturing a stem cell, which contains a synthetic resin, and has a nitrogen content of the synthetic resin of 0.1% by mass or more and 10% by mass or less. According to the scaffolding material for stem cell culture, the scaffolding material can have suitable hydrophilicity and strength, high fixation of stem cells after seeding, and highly efficient cell proliferation.Type: ApplicationFiled: December 27, 2018Publication date: November 26, 2020Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Satoshi HANEDA, Yuriko MANABE, Ryoma ISHII, Hiroki IGUCHI, Hiroshi YAMAUCHI, Takahiro OMURA
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Publication number: 20200362289Abstract: A scaffolding material for stem cell culture, which has a dispersion component ?d of the surface free energy of 24.5 or more and less than 45.0, and a dipole component ?p of the surface free energy of 1 or more and less than 20.0. According to the scaffolding material for stem cell culture, the scaffolding material can have suitable hydrophilicity and strength, high fixation of stem cells after seeding, and highly efficient cell proliferation.Type: ApplicationFiled: December 27, 2018Publication date: November 19, 2020Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Satoshi HANEDA, Yuriko MANABE, Ryoma ISHII, Hiroki IGUCHI, Hiroshi YAMAUCHI, Takahiro OMURA
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Publication number: 20200276581Abstract: Provided is a micro-fluid chip that enables reducing contamination between branch channels, has a relatively simple channel structure and facilitates miniaturization. A micro-fluid chip 1 having a channel structure 3 through which a fluid is delivered, wherein the channel structure 3 includes: a main channel 4 having an inflow port 5 and an outflow port 6; a plurality of branch channels 11 to 13 connected to the main channel 4, each branch channel having an inflow end on a side connected to the main channel 4 and an outflow end that is an end portion on an opposite side to the inflow end; and a sub-branch channel 14 connected to the main channel 4 between at least one pair of adjacent branch channels 11 and 12 among the plurality of branch channels 11 to 13, the sub-branch channel 14 having an inflow end on a side connected to the main channel 4.Type: ApplicationFiled: November 21, 2018Publication date: September 3, 2020Inventors: Kazuhiko Imamura, Nobuhiko Inui, Shotaro Kobaru, Takamasa Kouno, Tatsunori Takamatsu, Ryoma Ishii, Ryosuke Takahashi, Tsutomu Nakamura