Patents by Inventor Seiji Shinkai
Seiji Shinkai 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: 10544181Abstract: A novel gelator including a sugar derivative; a gelator including a compound of Formula (1) or Formula (2): wherein R1 is a linear or branched alkyl group having a carbon atom number of 9 to 20, a cyclic alkyl group having a carbon atom number of 13 to 20, or a linear or branched alkenyl group having a carbon atom number of 9 to 20, R2 is a hydrogen atom, a linear or branched alkyl group having a carbon atom number of 1 to 10, or an aryl group optionally having a substituent, and R3 and R4 are hydroxy groups.Type: GrantFiled: August 25, 2016Date of Patent: January 28, 2020Assignees: KYUSHU UNIVERSITY, INSTITUTE OF SYSTEMS, INFORMATION TECHNOLOGIES AND NANOTECHNOLOGIES, NISSAN CHEMICAL INDUSTRIES, LTD.Inventors: Fumiyasu Ono, Koichiro Saruhashi, Osamu Hirata, Seiji Shinkai, Tatsuhiro Yamamoto
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Patent number: 10150945Abstract: A low-cost cell culture device with low cytotoxicity and improved cell adhesion is described, manufactured by a simplified coating process. At least the portion for cell culture on the surface of the cell culture device is coated with at least one of ?-poly-L-lysine, further polymerized derivatives of ?-poly-L-lysine and their salts.Type: GrantFiled: July 21, 2005Date of Patent: December 11, 2018Assignees: JNC CORPORATION, TAKESHI NAGASAKIInventors: Takeshi Nagasaki, Seiji Shinkai, Atsushi Uno
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Publication number: 20180280296Abstract: A stable high-water-content W/O-type emulsion gel comprising: a gelator composed of a compound of Formula (1) or (2) below (wherein, R1 and R3 are each independently a linear or branched alkyl group having a carbon atom number of 1 to 20, a cyclic alkyl group having a carbon atom number of 3 to 20, or a linear or branched alkenyl group having a carbon atom number of 2 to 20, n is an integer of 0 or 1 to 4, R2 is a hydrogen atom, a linear or branched alkyl group having a carbon atom number of 1 to 10, or an aryl group optionally having a substituent, and R4 and R5 are a hydroxyl group); a surfactant; and a mixed solvent of a hydrophobic organic solvent and water, wherein the content of the gelator is 0.1-20% by mass with respect to the mass of the mixed solvent.Type: ApplicationFiled: August 25, 2016Publication date: October 4, 2018Applicants: NISSAN CHEMICAL INDUSTRIES, LTD., KYUSHU UNIVERSITY, INSTITUTE OF SYSTEMS, INFORMATION TECHNOLOGIES AND NANOTECHNOLOGIESInventors: Koichiro SARUHASHI, Osamu HIRATA, Fumiyasu ONO, Seiji SHINKAI, Tatsuhiro YAMAMOTO
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Publication number: 20180208618Abstract: A novel gelator including a sugar derivative; a gelator including a compound of Formula (1) or Formula (2): wherein R1 is a linear or branched alkyl group having a carbon atom number of 9 to 20, a cyclic alkyl group having a carbon atom number of 13 to 20, or a linear or branched alkenyl group having a carbon atom number of 9 to 20, R2 is a hydrogen atom, a linear or branched alkyl group having a carbon atom number of 1 to 10, or an aryl group optionally having a substituent, and R3 and R4 are hydroxy groups.Type: ApplicationFiled: August 25, 2016Publication date: July 26, 2018Applicants: KYUSHU UNIVERSITY, Institute of Systems, Information Technologies and Nanotechnologies, NISSAN CHEMICAL INDUSTRIES, LTD.Inventors: Fumiyasu ONO, Koichiro SARUHASHI, Osamu HIRATA, Seiji SHINKAI, Tatsuhiro YAMAMOTO
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Patent number: 9278989Abstract: There is provided a novel gelator containing a sugar derivative. A gelator including a compound of Formula (1) or Formula (2): wherein each of R1 and R3 is independently a linear or branched alkyl group having a carbon atom number of 1 to 20, a cyclic C3-20 alkyl group, or a linear or branched alkenyl group having a carbon atom number of 2 to 20, n is 0 or an integer of 1 to 4, R2 is a hydrogen atom, a linear or branched alkyl group having a carbon atom number of 1 to 10, or an aryl group optionally having a substituent, and R4 and R5 are each a hydroxy group.Type: GrantFiled: March 8, 2013Date of Patent: March 8, 2016Assignees: KYUSHU UNIVERSITY, INSTITUTE OF SYSTEMS, INFORMATION TECHNOLOGIES AND NANOTECHNOLOGIES, NISSAN CHEMICAL INDUSTRIES, LTD.Inventors: Fumiyasu Ono, Seiji Shinkai, Osamu Hirata
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Patent number: 9024053Abstract: A problem of the present invention is to prevent a base layer beneath the layer to be irradiated with light from deterioration in property and a functional thin film from deterioration in property as the fine patterning of a functional film is performed with light irradiation. Means for solving the problem is a compound obtained by dimerizing with light irradiation a compound (A) containing a group that has photosensitivity and can be photodimerized and a group having lyophilicity and a compound (B) containing a group that has photosensitivity and can be photodimerized and a group having liquid-repellency.Type: GrantFiled: November 18, 2010Date of Patent: May 5, 2015Assignees: Joled Inc., Sumitomo Chemical Company, LimitedInventors: Seiji Shinkai, Shuichi Haraguchi, Tomohiro Shiraki, Masashi Ogawa, Shuhei Nakatani, Kei Sakanoue, Osamu Goto, Hidenobu Kakimoto
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Publication number: 20150025157Abstract: There is provided a novel gelator containing a sugar derivative. A gelator including a compound of Formula (1) or Formula (2): wherein each of R1 and R3 is independently a linear or branched alkyl group having a carbon atom number of 1 to 20, a cyclic C3-20 alkyl group, or a linear or branched alkenyl group having a carbon atom number of 2 to 20, n is 0 or an integer of 1 to 4, R2 is a hydrogen atom, a linear or branched alkyl group having a carbon atom number of 1 to 10, or an aryl group optionally having a substituent, and R4 and R5 are each a hydroxy group.Type: ApplicationFiled: March 8, 2013Publication date: January 22, 2015Inventors: Fumiyasu Ono, Seiji Shinkai, Osamu Hirata
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Patent number: 8847211Abstract: A problem of the present invention is to provide a device having good characteristics and long life, wherein a functional thin film is formed in a desired region by a coating method; a thin film transistor; a method for producing the device; and a method for producing the thin film transistor. This problem can be solved by a device comprising: a substrate, a first electrode formed on the substrate, a functional thin film formed above the first electrode, and a second electrode disposed above the functional thin film, characterized by further comprising, in a region surrounding the region where the functional thin film is formed, a film containing a compound in which a group containing fluorine and a ?-conjugated system are bound together by a cycloalkene structure or a cycloalkane structure.Type: GrantFiled: November 18, 2010Date of Patent: September 30, 2014Assignees: Panasonic Corporation, Sumitomo Chemical Company, LimitedInventors: Seiji Shinkai, Shuichi Haraguchi, Tomohiro Shiraki, Masashi Ogawa, Shuhei Nakatani, Kei Sakanoue, Osamu Goto, Hidenobu Kakimoto
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Patent number: 8796027Abstract: A nucleic acid is effectively introduced into a cell while suppressing the cytotoxicity by administering a nucleic acid complex comprising a high molecular weight derivative of ?-poly-L-lysine and a nucleic acid to a cell.Type: GrantFiled: April 25, 2006Date of Patent: August 5, 2014Assignees: JNC CorporationInventors: Takeshi Nagasaki, Seiji Shinkai, Atsushi Uno, Mamoru Nishida
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Publication number: 20120330047Abstract: A problem of the present invention is to prevent a base layer beneath the layer to be irradiated with light from deterioration in property and a functional thin film from deterioration in property as the fine patterning of a functional film is performed with light irradiation. Means for solving the problem is a compound obtained by dimerizing with light irradiation a compound (A) containing a group that has photosensitivity and can be photodimerized and a group having lyophilicity and a compound (B) containing a group that has photosensitivity and can be photodimerized and a group having liquid-repellency.Type: ApplicationFiled: November 18, 2010Publication date: December 27, 2012Applicants: SUMITOMO CHEMICAL COMPANY, LIMITED, PANASONIC CORPORATIONInventors: Seiji Shinkai, Shuichi Haraguchi, Tomohiro Shiraki, Masashi Ogawa, Shuhei Nakatani, Kei Sakanoue, Osamu Goto, Hidenobu Kakimoto
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Publication number: 20120319090Abstract: A problem of the present invention is to provide a device having good characteristics and long life, wherein a functional thin film is formed in a desired region by a coating method; a thin film transistor; a method for producing the device; and a method for producing the thin film transistor. This problem can be solved by a device comprising: a substrate, a first electrode formed on the substrate, a functional thin film formed above the first electrode, and a second electrode disposed above the functional thin film, characterized by further comprising, in a region surrounding the region where the functional thin film is formed, a film containing a compound in which a group containing fluorine and a ?-conjugated system are bound together by a cycloalkene structure or a cycloalkane structure.Type: ApplicationFiled: November 18, 2010Publication date: December 20, 2012Applicants: SUMITOMO CHEMICAL COMPANY, LIMITED, PANASONIC CORPORATIONInventors: Seiji Shinkai, Shuichi Haraguchi, Tomohiro Shirake, Masashi Ogawa, Shuhei Nakatani, Kei Sakanoue, Osamu Goto, Hidenobu Kakimoto
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Publication number: 20110301230Abstract: Disclosed is a gene carrier composed of a hydrogen-bonding polymer having a polymer chain with hydrogen-bonding sites formed on the polymer chain, in which the polymer chain has a conformation similar to the conformation of a nucleic acid, and particularly, the polymer chain has helix parameters similar to the helix parameters of a nucleic acid of a helix structure. In a preferred embodiment, the hydrogen-bonding polymer is composed of ?-1,3-glucan such as schizophyllan. The carrier can be expected to be applied as a vector and a separator for nucleic acids because it is capable of interacting with a nucleic acid to form a complex with the nucleic acid and thus carrying the nucleic acid.Type: ApplicationFiled: August 22, 2011Publication date: December 8, 2011Applicants: TAITO CO., LTD, JAPAN SCIENCE AND TECHNOLOGY CORPORATIONInventors: Kazuo SAKURAI, Seiji Shinkai, Taro Kimura, Kengo Tabata, Kazuya Koumoto, Oliver Gronwald
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Patent number: 8017742Abstract: Disclosed is a gene carrier composed of a hydrogen-bonding polymer having a polymer chain with hydrogen-bonding sites formed on the polymer chain, in which the polymer chain has a conformation similar to the conformation of a nucleic acid, and particularly, the polymer chain has helix parameters similar to the helix parameters of a nucleic acid of a helix structure. In a preferred embodiment, the hydrogen-bonding polymer is composed of ?-1,3-glucan such as schizophyllan. The carrier can be expected to be applied as a vector and a separator for nucleic acids because it is capable of interacting with a nucleic acid to form a complex with the nucleic acid and thus carrying the nucleic acid.Type: GrantFiled: June 19, 2003Date of Patent: September 13, 2011Assignees: Japan Science and Technology Agency, Mitsui Sugar Co., Ltd.Inventors: Kazuo Sakurai, Seiji Shinkai, Taro Kimura, Kengo Tabata, Kazuya Koumoto, Oliver Gronwald
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Patent number: 7935683Abstract: Disclosed is a complex which comprises a carbon nanotube and a modified polysaccharide having a backbone chain with the side thereof being introduced with monosaccharide or oligosaccharide residues. The polysaccharide is preferably ?-1,3-glucan. The complex is prepared by admixing a solution of the modified polysaccharide dissolved in an aprotic polar solvent or a strong alkali solution with an aqueous dispersion of the carbon nanotube, and incubating the mixture.Type: GrantFiled: May 16, 2006Date of Patent: May 3, 2011Assignees: Japan Science and Technology Agency, Mitsui Sugar Co., Ltd.Inventors: Masami Mizu, Seiji Shinkai, Teruaki Hasegawa, Munenori Numata, Tomohisa Fujisawa, Kazuo Sakurai
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Patent number: 7790189Abstract: Disclosed is a new type of immunostimulating agent including an immunostimulating oligonucleotide complexed with a carrier which is safe and has a high transfection effect. The carrier complexed with the immunostimulating oligonucleotide to form the immunostimulating agent is a polysaccharide having ?-1,3-bonds (preferably ?-1,3-glucan such as schizophyllan). A preferred example of the immunostimulating oligonucleotide is one containing an unmethylated CpG motif. The polysaccharide for use is preferably modified with nucleic acid-binding functional group and/or cell membrane-affinitive functional group.Type: GrantFiled: May 13, 2004Date of Patent: September 7, 2010Assignees: Mitsui Sugar Co., Ltd., Japan Science and Technology AgencyInventors: Masami Mizu, Seiji Shinkai, Kazuo Sakurai, Kazuya Koumoto, Munenori Numata, Takahiro Matsumoto
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Patent number: 7745596Abstract: To provide a new technique by which efficient transfection is ensured in delivering a target gene into a cell, disclosed is a nucleic acid construct for nuclear import, which comprises a ternary complex consisting of a nucleic acid substance containing a gene to be delivered into the nucleus of a cell, an importin protein (for example, importin-?) capable of passing through the nuclear pore and involved in the nuclear transport, and a binding substance (for example, polyethyleneimine) bound to both of the nucleic acid substance and the importin protein. Nucleic acid transport from outside of a cell into the cell nucleus can be particularly promoted by administering the nucleic acid construct bound to a cell membrane receptor binding factor and/or a membrane fusing substance, or administering the nucleic acid construct encapsulated in a non-viral vector (for example, Sendai virus envelope) having cell membrane permeability and membrane fusing properties.Type: GrantFiled: July 11, 2005Date of Patent: June 29, 2010Assignee: Japan Science and Technology AgencyInventors: Seiji Shinkai, Takeshi Nagasaki, Takeshi Kawazu, Shinji Kakimoto
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Patent number: 7521433Abstract: Disclosed are gene carriers utilizing ?-1,3-glucan and methods of preparing the same. The ?-1,3-glucan has at least one 1,6-glucopyranoside branch and is chemically modified through periodate oxidation and reductive amination so as to impart nucleic acid-binding functional groups (for example, cationic functional groups) to at least some of the 1,6-glucopyranoside branches thereof. Triple helix ?-1,3-glucan is dissolved in a polar organic solvent to form single-stranded ?-1,3-glucan. By replacing, in the presence of a nucleic acid, the polar organic solvent for the solution containing the chemically modified single-stranded ?-1,3-glucan by water, a complex (gene carrier) is formed in which the nucleic acid is bound to double-stranded ?-1,3-glucan.Type: GrantFiled: March 11, 2002Date of Patent: April 21, 2009Assignees: Japan Science and Technology Agency, Mitsui Sugar Co., Ltd., Fukuoka Prefectural GovernmentInventors: Taro Kimura, Masami Mizu, Kazuo Sakurai, Seiji Shinkai, Kazuya Koumoto
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Publication number: 20080262210Abstract: Disclosed is a new type of immunostimulating agent including an immunostimulating oligonucleotide complexed with a carrier which is safe and has a high transfection effect. The carrier complexed with the immunostimulating oligonucleotide to form the immunostimulating agent is a polysaccharide having ?-1,3-bonds (preferably ?-1,3-glucan such as schizophyllan). A preferred example of the immunostimulating oligonucleotide is one containing an unmethylated CpG motif. The polysaccharide for use is preferably modified with nucleic acid-binding functional group and/or cell membrane-affinitive functional group.Type: ApplicationFiled: May 13, 2004Publication date: October 23, 2008Applicants: Mitsui Sugar Co., Ltd., Japan Science and Technology AgencyInventors: Masami Mizu, Seiji Shinkai, Kazuo Sakurai, Kazuya Koumoto, Munenori Numata, Takahiro Matsumoto
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Publication number: 20080242854Abstract: Disclosed is a complex which comprises a carbon nanotube and a modified polysaccharide having a backbone chain with the side thereof being introduced with monosaccharide or oligosaccharide residues. The polysaccharide is preferably ?-1,3-glucan. The complex is prepared by admixing a solution of the modified polysaccharide dissolved in an aprotic polar solvent or a strong alkali solution with an aqueous dispersion of the carbon nanotube, and incubating the mixture.Type: ApplicationFiled: May 16, 2006Publication date: October 2, 2008Inventors: Masami Mizu, Seiji Shinkai, Teruaki Hasegawa, Munenori Numata, Tomohisa Fujisawa, Kazuo Sakurai
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Publication number: 20070281356Abstract: To provide a new technique by which efficient transfection is ensured in delivering a target gene into a cell, disclosed is a nucleic acid construct for nuclear import, which comprises a ternary complex consisting of a nucleic acid substance containing a gene to be delivered into the nucleus of a cell, an importin protein (for example, importin-?) capable of passing through the nuclear pore and involved in the nuclear transport, and a binding substance (for example, polyethyleneimine) bound to both of the nucleic acid substance and the importin protein. Nucleic acid transport from outside of a cell into the cell nucleus can be particularly promoted by administering the nucleic acid construct bound to a cell membrane receptor binding factor and/or a membrane fusing substance, or administering the nucleic acid construct encapsulated in a non-viral vector (for example, Sendai virus envelope) having cell membrane permeability and membrane fusing properties.Type: ApplicationFiled: July 11, 2005Publication date: December 6, 2007Inventors: Seiji Shinkai, Takeshi Nagasaki, Takeshi Kawazu, Shinji Kakimoto