Patents by Inventor Takashi Tatsumi
Takashi Tatsumi 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: 20240108578Abstract: The present invention provides a composition comprising an ionic liquid and a poorly absorbable drug, wherein the ionic liquid is prepared from an anion and a cation, the anion is an organic acid having 3 to 7 carbon atoms, and the cation is selected from the group consisting of arginine, meglumine, trometamol and diethanolamine, which remarkably improves the absorbability of the poorly absorbable drug.Type: ApplicationFiled: February 10, 2022Publication date: April 4, 2024Applicant: MEDRx Co., Ltd.Inventors: Tatsuhiro Ishida, Noboru Tatsumi, Takashi Nakae, Yasushi Miwa, Hidetoshi Hamamoto
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Patent number: 11912989Abstract: An objective of the present invention is to provide target tissue-specific antigen-binding molecules, antigen-binding molecules whose antigen-binding activity varies depending on the concentration of an unnatural compound, libraries comprising a plurality of the antigen-binding molecules which are different from one another, pharmaceutical compositions comprising the antigen-binding molecules, methods of screening for the antigen-binding molecules, and methods for producing the antigen-binding molecules. The present inventors created antigen-binding domains whose antigen-binding activity varies depending on the concentration of a small molecule compound or antigen-binding molecules containing an antigen-binding domain, and libraries comprising a plurality of the antigen-binding domains which are different from one another or antigen-binding domains, and demonstrated that the above-noted objective could be achieved by using the libraries.Type: GrantFiled: February 23, 2021Date of Patent: February 27, 2024Assignee: Chugai Seiyaku Kabushiki KaishaInventors: Tomoyuki Igawa, Shigero Tamba, Shun Shimizu, Kanako Tatsumi, Shojiro Kadono, Hiroki Kawauchi, Kazuhiro Ohara, Masayuki Matsushita, Takashi Emura, Masaki Kamimura
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Patent number: 9334171Abstract: A process for the production of a zeolitic material having an LEV-type framework structure comprising YO2 and optionally comprising X203, wherein said process comprises preparing a mixture comprising one or more sources for YO2, one or more solvents, and optionally comprising seed crystals; and crystallizing the mixture; wherein Y is a tetravalent element, and X is a trivalent element, and wherein the crystallized mixture contains 0.1 wt.-% or less, more preferably 0.01 wt.-% or less of one or more metals M based on 100 wt.-% of YO2, wherein even more preferably the crystallized mixture contains no metal M, wherein M stands for sodium and/or potassium, wherein preferably M stands for the group of alkali and alkaline earth metals.Type: GrantFiled: June 17, 2011Date of Patent: May 10, 2016Assignees: BASF SE, TOKYO INSTITUTE OF TECHNOLOGYInventors: Bilge Yilmaz, Ulrich Müller, Meike Pfaff, Hermann Gies, Feng-Shou Xiao, Takashi Tatsumi, Xinhe Bao, Weiping Zhang, Dirk de Vos, Hiroyuki Imai, Bin Xie, Haiyan Zhang
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Patent number: 9334170Abstract: The present invention relates to a process for the preparation of a zeolitic material having a CHA framework structure, said zeolitic material comprising zeolite crystals having a core-shell structure, wherein said process comprises the steps of (1) providing a mixture comprising one or more sources for Z2O5, one or more sources for X2O3, optionally one or more structure directing agents, and seed crystals having a CHA framework structure, wherein the CHA framework structure of the seed crystals comprises YO2, X2O3, and optionally Z2O5, and wherein the seed crystals have a diameter of 450 nm or greater; (2) crystallizing the mixture provided in (1) to afford zeolite crystals comprising a core of seed crystal provided in step (1) and a shell crystallized on the seed crystal; wherein Z is a pentavalent element, Y is a tetravalent element, and X is a trivalent element.Type: GrantFiled: September 14, 2012Date of Patent: May 10, 2016Assignees: BASF SE, Tokyo Institute of TechnologyInventors: Bilge Yilmaz, Ulrich Müller, Feng-Shou Xiao, Takashi Tatsumi, Dirk de Vos, Xinhe Bao, Weiping Zhang, Hermann Gies, Hiroyuki Imai, Bart Tijsebaert, Limin Ren, Chengguan Yang
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Patent number: 9260313Abstract: The present invention relates to a process for the preparation of a silicate compound, comprising (1) providing at least one layered silicate; and (2) mixing said layered silicate with water and at least one silicon containing compound according to formula R4-mSi[—(SiR2)n—R]m wherein at least one residue R is a leaving group and none of the residues R contains Si; m is 0, 1, 2, 3, or 4; and n is an integer greater than or equal to 0.Type: GrantFiled: March 3, 2010Date of Patent: February 16, 2016Assignees: BASF SE, Tokyo Institute of TechnologyInventors: Bilge Yilmaz, Ulrich Müller, Feng-Shou Xiao, Hermann Gies, Takashi Tatsumi, Dirk de Vos, Xinhe Bao, Weiping Zhang
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Patent number: 9181145Abstract: The present invention relates to a process for the alkylation of an organic compound comprising: (a) providing a catalyst comprising one or more zeolitic materials having a BEA framework structure, wherein the BEA framework structure comprises YO2 and optionally comprises X2O3, wherein Y is a tetravalent element, and X is a trivalent element, (b) contacting the catalyst with one or more alkylatable organic compounds in the presence of one or more alkylating agents in one or more reactors for obtaining one or more alkylated organic compounds, wherein the one or more zeolitic materials is obtainable from a synthetic process which does not employ an organotemplate as structure directing agent.Type: GrantFiled: April 3, 2012Date of Patent: November 10, 2015Assignees: BASF SE, Tokyo Institute of TechnologyInventors: Bilge Yilmaz, Ulrich Müller, Faruk Özkirim, Dirk de Vos, Feng-Shou Xiao, Takashi Tatsumi, Xinhe Bao, Weiping Zhang, Hermann Gies, Hiroyuki Imai, Bart Tijsebaert
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Patent number: 8710271Abstract: The present invention relates to a process for the preparation of a zeolitic material having a BEA framework structure comprising the steps of: (i) providing one or more zeolitic materials having a BEA framework structure, wherein the BEA framework structure comprises YO2 and X2O3, wherein Y is a tetravalent element, and X is a trivalent element; (ii) subjecting the one or more zeolitic materials provided in step (i) to a procedure for removing at least a portion of X, preferably tetrahedrally coordinated X, from the BEA framework structure; wherein the Y:X molar ratios of the one or more zeolitic materials provided in step (i) are respectively comprised in the range of from 1 to 50.Type: GrantFiled: April 3, 2012Date of Patent: April 29, 2014Assignees: BASF SE, Tokyo Institute of TechnologyInventors: Bilge Yilmaz, Ulrich Müller, Faruk Özkirim, Takashi Tatsumi, Feng-Shou Xiao, Dirk de Vos, Xinhe Bao, Weiping Zhang, Hermann Gies, Hiroyuki Imai, Bart Tijsebaert
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Publication number: 20140113981Abstract: Described is a process for the production of a pillared silicate. The process comprises (i) providing a layered silicate; (ii) interlayer expanding the layered silicate provided in step (i) comprising a step of treating the layered silicate with one or more swelling agents; (iii) treating the interlayer expanded silicate obtained in step (ii) with one or more hydrolyzable silicon containing compounds; (iv) treating the interlayer expanded compound obtained in step (iii) with an aqueous solution to obtain a pillared silicate; (v) removing at least a portion of the one or more swelling agents from the pillared silicate obtained in step (iv); and (vi) impregnating the pillared silicate obtained in step (v) with one or more elements selected from the group consisting of Fe, Ru, Ir, and combinations of two or more thereof. Also described is a pillared silicate optionally obtainable from said process and its use, in particular, in a process for the production of one or more olefins according to the invention.Type: ApplicationFiled: October 17, 2013Publication date: April 24, 2014Applicant: BASF SEInventors: Bilge Yilmaz, Ulrich Müller, Xinhe Bao, Weiping Zhang, Dirk de Vos, Takashi Tatsumi, Feng-Shou Xiao, Hermann Gies, Hiroyuki Imai
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Publication number: 20140109614Abstract: Provided is an air separation method and apparatus in which consumed power source can be reduced when oxygen is collected in a three-column process, including: a first separation step in which feed air is separated into high pressure nitrogen gas and high pressure oxygen-enriched liquid air; a second separation step in which a high pressure oxygen-enriched liquid air is separated into medium pressure nitrogen gas, and medium pressure oxygen-enriched liquid air; a first indirect heat exchange step in which a medium pressure nitrogen gas is condensed and a low pressure oxygen-enriched liquid air is vaporized by indirect heat exchange; and a third separation step in which a low pressure oxygen-enriched air is separated into low pressure nitrogen gas and low pressure liquid oxygen.Type: ApplicationFiled: June 13, 2012Publication date: April 24, 2014Applicant: TAIYO NIPPON SANSO CORPORATIONInventors: Hiroshi Tachibana, Takashi Tatsumi
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Publication number: 20130101503Abstract: The present invention relates to a process for the preparation of a zeolitic material having a CHA framework structure, said zeolitic material comprising zeolite crystals having a core-shell structure, wherein said process comprises the steps of (1) providing a mixture comprising one or more sources for Z2O5, one or more sources for X2O3, optionally one or more structure directing agents, and seed crystals having a CHA framework structure, wherein the CHA framework structure of the seed crystals comprises YO2, X2O3, and optionally Z2O5, and wherein the seed crystals have a diameter of 450 nm or greater; (2) crystallizing the mixture provided in (1) to afford zeolite crystals comprising a core of seed crystal provided in step (1) and a shell crystallized on the seed crystal; wherein Z is a pentavalent element, Y is a tetravalent element, and X is a trivalent element.Type: ApplicationFiled: September 14, 2012Publication date: April 25, 2013Applicants: Tokyo Institute of Technology, BASF SEInventors: Bilge Yilmaz, Ulrich Müller, Feng-Shou Xiao, Takashi Tatsumi, Dirk de Vos, Xinhe Bao, Weiping Zhang, Hermann Gies, Hiroyuki Imai, Bart Tijsebaert, Limin Ren, Chengguan Yang
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Patent number: 8426332Abstract: The present invention relates to a pillared silicate compound comprising a layered silicate structure, and bridging metal atoms located between adjacent silicate layers of the silicate structure, wherein said bridging metal atoms form at least one covalent bond to each of the adjacent silicate layers, as well as a process for the preparation of a pillared silicate compound, and further includes a pillared silicate compound obtainable and or obtained according to said process, as well as a method of catalyzing a chemical reaction comprising the step of contacting one or more chemical compounds with the any of the aforementioned pillared silicate compounds.Type: GrantFiled: July 1, 2011Date of Patent: April 23, 2013Assignee: BASF SEInventors: Bilge Yilmaz, Ulrich Müller, Trees De Baerdemaeker, Hermann Gies, Feng-Shou Xiao, Takashi Tatsumi, Xinhe Bao, Weiping Zhang, Dirk de Vos
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Publication number: 20120259148Abstract: The present invention relates to a process for the alkylation of an organic compound comprising: (a) providing a catalyst comprising one or more zeolitic materials having a BEA framework structure, wherein the BEA framework structure comprises YO2 and optionally comprises X2O3, wherein Y is a tetravalent element, and X is a trivalent element, (b) contacting the catalyst with one or more alkylatable organic compounds in the presence of one or more alkylating agents in one or more reactors for obtaining one or more alkylated organic compounds, wherein the one or more zeolitic materials is obtainable from a synthetic process which does not employ an organotemplate as structure directing agent.Type: ApplicationFiled: April 3, 2012Publication date: October 11, 2012Applicants: Tokyo Institute of Technology, BASF SEInventors: Bilge Yilmaz, Ulrich Müller, Faruk Özkirim, Dirk de Vos, Feng-Shou Xiao, Takashi Tatsumi, Xinhe Bao, Weiping Zhang, Hermann Gies, Hiroyuki Imai, Bart Tijsebaert
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Publication number: 20120259141Abstract: The present invention relates to a process for the preparation of a zeolitic material having a BEA framework structure comprising the steps of: (i) providing one or more zeolitic materials having a BEA framework structure, wherein the BEA framework structure comprises YO2 and X2O3, wherein Y is a tetravalent element, and X is a trivalent element; (ii) subjecting the one or more zeolitic materials provided in step (i) to a procedure for removing at least a portion of X, preferably tetrahedrally coordinated X, from the BEA framework structure; wherein the Y:X molar ratios of the one or more zeolitic materials provided in step (i) are respectively comprised in the range of from 1 to 50.Type: ApplicationFiled: April 3, 2012Publication date: October 11, 2012Applicants: Tokyo Institute of Technology, BASF SEInventors: Bilge Yilmaz, Ulrich Müller, Faruk Özkirim, Takashi Tatsumi, Feng-Shou Xiao, Dirk de Vos, Xinhe Bao, Weiping Zhang, Hermann Gies, Hiroyuki Imai, Bart Tijsebaert
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Patent number: 8173092Abstract: A novel silica which is in the form of ultrafine particles having mesopores and has a regular structure; and a process for producing the silica. The silica is a self-organized nanoparticulate silica characterized in that the average particle diameter is 4 to 30 nm, preferably 6 to 20 nm, and these particles are regularly arranged so as to form a primitive cubic lattice. The self-organized nanoparticulate silica is produced by mixing an alkoxysilane with an aqueous solution of a basic amino acid, reacting the mixture at 40 to 100° C., and subjecting the reaction mixture to drying and preferably to subsequent burning. Also provided is a process for producing fine silica particles having a particle diameter of 4 to 30 nm, which comprises mixing a solution of an alkoxysilane compound having 1 to 4 alkoxy groups with a solution of a basic amino acid and reacting the mixture at 20 to 100° C. to cause hydrolysis and condensation polymerization.Type: GrantFiled: March 10, 2006Date of Patent: May 8, 2012Assignee: Japan Science and Technology AgencyInventors: Takashi Tatsumi, Toshiyuki Yokoi
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Publication number: 20120016045Abstract: The present invention relates to a process for the preparation of a layered silicate containing at least silicon and oxygen, comprising (1) providing a mixture containing silica and/or at least one silica precursor, water, at least one tetraalkylammonium compound selected from the group consisting of diethyldimethylammonium compound, a triethylmethylammonium compound, and a mixture of a diethyldimethylammonium and a triethylmethylammonium compound, and at least one base, and optionally at least one suitable seeding material; and (2) heating of the mixture obtained according to (1) under autogenous pressure (hydrothermal conditions) to a temperature in the range of from to 120 to 160° C. for a period in the range of from 5 to 10 days to give a suspension containing the layered silicate.Type: ApplicationFiled: March 3, 2010Publication date: January 19, 2012Applicants: TOKYO INSTITUTE OF TECHNOLOGY, BASF SEInventors: Bilge Yilmaz, Ulrich Müller, Meike Pfaff, Hermann Gies, Feng-Shou Xiao, Takashi Tatsumi, Dirk de Vos, Xinhe Bao, Weiping Zhang
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Publication number: 20120004332Abstract: The present invention relates to a pillared silicate compound comprising a layered silicate structure, and bridging metal atoms located between adjacent silicate layers of the silicate structure, wherein said bridging metal atoms form at least one covalent bond to each of the adjacent silicate layers, as well as a process for the preparation of a pillared silicate compound, and further includes a pillared silicate compound obtainable and or obtained according to said process, as well as a method of catalyzing a chemical reaction comprising the step of contacting one or more chemical compounds with the any of the aforementioned pillared silicate compounds.Type: ApplicationFiled: July 1, 2011Publication date: January 5, 2012Applicants: BASF SEInventors: Bilge Yilmaz, Ulrich Müller, Trees De Baerdemaeker, Hermann Gies, Feng-Shou Xiao, Takashi Tatsumi, Xinhe Bao, Weiping Zhang, Dirk de Vos
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Publication number: 20120004465Abstract: A process for the preparation of an isomorphously substituted layered silicate comprising (1) providing a mixture containing silica or a precursor thereof, at least one structure directing agent (SDA) allowing for the crystallization of the layered silicate, and water; (2) heating the mixture obtained according to (1) under hydrothermal conditions; (3) adding at least one source at least one element suitable for isomorphous substitution; (4) heating the mixture obtained according to (3) under hydrothermal conditions.Type: ApplicationFiled: March 3, 2010Publication date: January 5, 2012Applicants: Tokyo Institute of Technology, BASF SEInventors: Bilge Yilmaz, Ulrich Müller, Meike Pfaff, Feng-Shou Xiao, Hermann Gies, Dirk de Vos, Xinhe Bao, Weiping Zhang, Takashi Tatsumi
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Publication number: 20110319251Abstract: The present invention relates to a process for the preparation of an isomorphously substituted RUB-36 silicate comprising (1) providing a mixture containing silica, preferably amorphous silica, and/or at least one silica precursor, water, at least one suitable structure directing agent, (2) heating the mixture obtained according to (1) under hydrothermal conditions to give a suspension containing an RUB-36 silicate, (3) separating the RUB-36 silicate, wherein (a) either the mixture according to (1) contains at least one element suitable for isomorphous substitution and/or (b) the separated RUB-36 silicate according to (3) is subjected to isomorphous substitution.Type: ApplicationFiled: March 3, 2010Publication date: December 29, 2011Applicant: BASF SEInventors: Bilge Yilmaz, Ulrich Müller, Feng-Shou Xiao, Hermann Gies, Xinhe Bao, Dirk De Vos, Takashi Tatsumi, Weiping Zhang
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Publication number: 20110319250Abstract: The present invention relates to a process for the preparation of a silicate compound, comprising (1) providing at least one layered silicate; and (2) mixing said layered silicate with water and at least one silicon containing compound according to formula R4-mSi[—(SiR2)n—R]m wherein at least one residue R is a leaving group and none of the residues R contains Si; m is 0, 1, 2, 3, or 4; and n is an integer greater than or equal to 0.Type: ApplicationFiled: March 3, 2010Publication date: December 29, 2011Applicants: Tokyo Institute of Technology, BASF SEInventors: Bilge Yilmaz, Ulrich Müller, Feng-Shou Xiao, Hermann Gies, Takashi Tatsumi, Dirk de Vos, Xinhe Bao, Weiping Zhang
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Publication number: 20110312486Abstract: Described is a process for the production of a zeolitic material having an LEV-type framework structure comprising YO2 and optionally comprising X2O3, wherein said process comprises (1) preparing a mixture comprising one or more sources for YO2, one or more solvents, and optionally comprising seed crystals; and (2) crystallizing the mixture obtained in step (1); wherein Y is a tetravalent element, and X is a trivalent element, and wherein the mixture crystallized in step (2) contains 3 wt.-% or less of one or more metals M based on 100 wt-% of YO2, preferably 1 wt.-% or less, more preferably 0.5 wt.-% or less, more preferably 0.1 wt.-% or less, more preferably 0.05 wt.-% or less, more preferably 0.01 wt.-% or less, more preferably 0.005 wt.-% or less, more preferably 0.001 wt.-% or less, more preferably 0.0005 wt.-% or less, more preferably 0.0001 wt.-% or less of one or more metals M based on 100 wt.Type: ApplicationFiled: June 17, 2011Publication date: December 22, 2011Applicants: Tokyo Institute of Technology, BASF SEInventors: Bilge Yilmaz, Ulrich Müller, Meike Pfaff, Hermann Gies, Feng-Shou Xiao, Takashi Tatsumi, Xinhe Bao, Weiping Zhang, Dirk de Vos, Hiroyuki Imai, Bin Xie, Haiyan Zhang