Patents Assigned to Next21 K.K.
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Patent number: 9452180Abstract: A method of manufacturing a medical drug of alleviating damage of gastrointestinal mucosal induced by a non-steroidal anti-inflammatory drug, NSAID, the medical drug being able to induce anti-inflammatory effect of the NSAID and being able to alleviate damage induced by the NSAID includes dissolving trehalose and the NSAID into one or more solutions, so as to obtain an approximately homogenously-mixed liquid mixture of the trehalose and the NSAID; in which the liquid mixture contains an intermolecular compound with the trehalose and the NSAID; and drying the liquid mixture so as to obtain the medical drug.Type: GrantFiled: June 3, 2014Date of Patent: September 27, 2016Assignee: Next21 K.K.Inventors: Yuichi Tei, Nobuo Sasaki, Shigeki Suzuki
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Patent number: 8957173Abstract: Disclosed is a respiration-assisting tube whereby tissue damages in vivo can be prevented and, as a result, inflammatory reactions and infections can be avoided. The respiration-assisting tube is developed based on the finding that adhesion of cells to a respiration-assisting tube can be inhibited by coating the respiration-assisting tube with a polymer containing 2-methacryloyloxyethyl phosphorylcholine (MPC). Also, the respiration-assisting tube is developed based on the finding that, by coating a respiration-assisting tube with a polymer containing MPC, mucosa peeling and tissue damages, which occur after using the respiration-assisting tube, can be prevented and, as a result, inflammatory reactions can be avoided.Type: GrantFiled: April 26, 2010Date of Patent: February 17, 2015Assignees: Next21 K.K., The University of Tokyo, NOF CorporationInventors: Yuichi Tei, Nobuo Sasaki, Shigeki Suzuki
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Patent number: 8906111Abstract: Disclosed is an artificial bone material having controlled calcium ion elution, which does not induce cytotoxicity or any inflammatory response. It is found that the elution of a calcium ion from an artificial bone material for transplantation which contains a calcium-containing substance can be prevented effectively by subjecting the carrier to a surface treatment or adding a surface-treating agent to the carrier. It is also found that the induction of cytotoxicity can be prevented and the induction of an inflammatory response can also be prevented by using the above-mentioned carrier having controlled calcium ion elution.Type: GrantFiled: July 1, 2009Date of Patent: December 9, 2014Assignees: The University of Tokyo, Next21 K.K.Inventors: Yuichi Tei, Nobuo Sasaki, Shigeki Suzuki
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Publication number: 20140323429Abstract: A method of manufacturing a medical drug of alleviating damage of gastrointestinal mucosal induced by a non-steroidal anti-inflammatory drug, NSAID, the medical drug being able to induce anti-inflammatory effect of the NSAID and being able to alleviate damage induced by the NSAID includes dissolving trehalose and the NSAID into one or more solutions, so as to obtain an approximately homogenously-mixed liquid mixture of the trehalose and the NSAID; in which the liquid mixture contains an intermolecular compound with the trehalose and the NSAID; and drying the liquid mixture so as to obtain the medical drug.Type: ApplicationFiled: June 3, 2014Publication date: October 30, 2014Applicant: NEXT21 K.K.Inventors: Yuichi Tei, Nobuo Sasaki, Shigeki Suzuki
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Patent number: 8709468Abstract: An object of the present invention is to provide a tissue cell culture system whereby a call tissue can be efficiently and quickly proliferated in vivo and the onset bacterial infection in an injured part can be avoided in the course of a treatment. More specifically, a closed cell culture system (1) characterized in that a defection (2) of a tissue on the body surface or inside the body is tightly sealed to form a closed environment free from the invasion of bacteria, etc. and then a solution appropriate for cell culture is circulated in the tissue defection thus sealed to thereby regenerate the defective tissue; and a method of administering a drug which comprises dissolving a remedy in the perfusion with the use of the above system and thus promoting the treatment of the defection.Type: GrantFiled: December 6, 2012Date of Patent: April 29, 2014Assignee: Next21 K.K.Inventor: Shigeki Suzuki
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Publication number: 20130096491Abstract: An object of the present invention is to provide a tissue cell culture system whereby a call tissue can be efficiently and quickly proliferated in vivo and the onset bacterial infection in an injured part can be avoided in the course of a treatment. More specifically, a closed cell culture system (1) characterized in that a defection (2) of a tissue on the body surface or inside the body is tightly sealed to form a closed environment free from the invasion of bacteria, etc. and then a solution appropriate for cell culture is circulated in the tissue defection thus sealed to thereby regenerate the defective tissue; and a method of administering a drug which comprises dissolving a remedy in the perfusion with the use of the above system and thus promoting the treatment of the defection.Type: ApplicationFiled: December 6, 2012Publication date: April 18, 2013Applicant: NEXT21 K.K.Inventor: NEXT21 K.K.
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Patent number: 8283337Abstract: An object of the present invention is to provide an agent for treating or preventing vasospasm. An object of the present invention is to provide an agent for treating or preventing cerebral vasospasm as well as arterial vasospasm. Further, an object of the present invention is to provide an agent for treating or preventing cerebral ischemia and cerebral infarction. The above problems are solved by an agent for treating and preventing vasospasm, cerebral ischemia, or cerebral infarction, comprising trehalose as the active ingredient. It is possible, by using such a trehalose-comprising agent, to suppress phenomena such as contraction of blood vessel and thickening of tunica intima and tunica media and to prevent or treat vasospasm and vasospasm-dependent diseases.Type: GrantFiled: February 22, 2008Date of Patent: October 9, 2012Assignees: Next21 K.K., The Universtiy of TokyoInventors: Nobuo Sasaki, Yuichi Tei, Ryosuke Echigo, Shigeki Suzuki, Touru Hakukawa
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Publication number: 20120135955Abstract: Disclosed is an external preparation containing nonsteroidal anti-inflammatory drugs (NSAIDs), which is suppressed in cytotoxicity induced by the NSAIDs. Also disclosed is a method for producing the external preparation. The present invention is based on the finding that skin disorders induced by nonsteroidal anti-inflammatory drugs (NSAIDs) can be suppressed when the NSAIDs form intermolecular compounds together with trehalose, which is an example of disaccharides. A disaccharide other than trehalose may be used therefor.Type: ApplicationFiled: July 21, 2010Publication date: May 31, 2012Applicants: The University of Tokyo, Next21 K.K.Inventors: Yuichi Tei, Nobuo Sasaki, Shigeki Suzuki
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Publication number: 20120122949Abstract: [Problem] The present invention is intended to provide high-strength hydrogels and method for fabricating the same. The present invention is intended to provide the method for fabricating the hydrogels with different decomposition rates. [Solution to Problem] The present invention is based on a knowledge that high-strength hydrogels can be fabricated by controlling pH of solution, ionic strength in the solution, and buffer concentration in the solution. In addition, the present invention is based on a knowledge that the high-strength hydrogels which have homogeneous macromolecular network structure can be fabricated by polymerizing four-branching compounds after having dispersed the four-branching compounds homogeneously.Type: ApplicationFiled: June 19, 2009Publication date: May 17, 2012Applicants: THE UNIVERSITY OF TOKYO, NEXT21 K.K.Inventors: Yuichi Tei, Takamasa Sakai, Nobuo Sasaki, Mitsuhiro Shibayama, Shigeki Suzuki
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Publication number: 20120123542Abstract: Provided are an artificial bone constructing unit which is capable of being built into a free shape according to build-up design, and effectively guiding bone replacement, and an artificial bone system. Specifically disclosed are an artificial bone constructing unit and an artificial bone constructing system, wherein in principal, the artificial bone constructing unit which constructs an artificial bone is so made into a block shape that when blocks are assembled, continuous holes through a plurality of blocks are formed.Type: ApplicationFiled: July 22, 2010Publication date: May 17, 2012Applicants: Next21 K.K., Tama-TLO, The University of TokyoInventors: Shigeki Suzuki, Yuichi Tei, Nobuo Sasaki, Jianmei He
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Publication number: 20120097169Abstract: Disclosed is a respiration-assisting tube whereby tissue damages in vivo can be prevented and, as a result, inflammatory reactions and infections can be avoided. The respiration-assisting tube is developed based on the finding that adhesion of cells to a respiration-assisting tube can be inhibited by coating the respiration-assisting tube with a polymer containing 2-methacryloyloxyethyl phosphorylcholine (MPC). Also, the respiration-assisting tube is developed based on the finding that, by coating a respiration-assisting tube with a polymer containing MPC, mucosa peeling and tissue damages, which occur after using the respiration-assisting tube, can be prevented and, as a result, inflammatory reactions can be avoided.Type: ApplicationFiled: April 26, 2010Publication date: April 26, 2012Applicants: Next21 K.K., NOF Corporation, The University of TokyoInventors: Yuichi Tei, Nobuo Sasaki, Shigeki Suzuki
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Patent number: 8105517Abstract: It is an object of the present invention to provide a figure-forming composition which enables the initiation of hardening even with a small amount of water and can attain a prescribed hardness, and which is suitable particularly for the production of three-dimensional living body models for surgical training by a rapid prototype process; and provide a three dimensional figure and a three-dimensional structure which are formed by using the composition. The figure-forming composition, for example, comprises a calcium-based material such as hemihydrate gypsum and polyvinyl alcohol resin, wherein the content of the polyvinyl alcohol resin is 2 to 20 weight parts when the total weight of the calcium-based material and the polyvinyl alcohol resin is 100 weight parts.Type: GrantFiled: April 10, 2007Date of Patent: January 31, 2012Assignee: Next21 K.K.Inventors: Shigeki Suzuki, Koutaro Shimizu, Shinya Wasada, Hironobu Okamoto, Shinro Takai
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Publication number: 20110301116Abstract: [Problems] The object of the present invention is to provide a Medical Drugs which reduce damage of gastrointestinal mucosal induced by NSAIDs. [Means for Solving Problems] The Medical Drugs that comprises a mixture of NSAIDs and sugar that reduce damage of gastrointestinal mucosal induced by NSAIDs is already known. However the mixture is not enough to suppress damage of gastrointestinal mucosal. The inventors invented new molecular compounds with NSAIDs and trehalose. The new molecular compounds effectively reduce damage of gastrointestinal mucosal induced by NSAIDs.Type: ApplicationFiled: December 3, 2009Publication date: December 8, 2011Applicants: THE UNIVERSITY OF TOKYO, NEXT21 K.K.Inventors: Yuichi Tei, Nobuo Sasaki, Shigeki Suzuki
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Publication number: 20110183000Abstract: Disclosed is an artificial bone material having controlled calcium ion elution, which does not induce cytotoxicity or any inflammatory response. It is found that the elution of a calcium ion from an artificial bone material for transplantation which contains a calcium-containing substance can be prevented effectively by subjecting the carrier to a surface treatment or adding a surface-treating agent to the carrier. It is also found that the induction of cytotoxicity can be prevented and the induction of an inflammatory response can also be prevented by using the above-mentioned carrier having controlled calcium ion elution.Type: ApplicationFiled: July 1, 2009Publication date: July 28, 2011Applicants: NEXT21 K.K., THE UNIVERSITY OF TOKYOInventors: Yuichi Tei, Nobuo Sasaki, Shigeki Suzuki
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Publication number: 20110166672Abstract: An object of the invention is to provide a bone filling material capable of promoting the bone regeneration effect of a growth factor such as platelet rich plasma (PRP). Inventors of the invention anticipated that the bone filling material adsorbs a growth factor like PRP, and the combined use of the bone filling material with PRP, the bone regeneration effect of PRP might be impaired. Further, the invention is basically related to the inhibition of this adsorbing effect of the bone filling material by using a capping agent. Since the adsorbing effect of the bone filling material is thus inhibited, PRP can exert the bone regeneration effect thereof in the case of using the bone filling material together with PRP.Type: ApplicationFiled: June 29, 2009Publication date: July 7, 2011Applicants: THE UNIVERSITY OF TOKYO, NEXT21 K.K.Inventors: Yuichi Tei, Nobuo Sasaki, Shigeki Suzuki
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Publication number: 20100262259Abstract: A novel method for producing a bone filling material is provided. The method comprises the steps of: (a) kneading ingredient comprising calcium-based material and material comprising binder; (b) molding a predetermined shape of the mixture obtained in step (a) with an injection molding machine having a mold; (c) removing the binder contained in the mold formed in step (b) (i.e., degreasing) to obtain a degreased body; (d) and heating and sintering the degreased body obtained in step (c) to obtain a sintered body.Type: ApplicationFiled: February 13, 2007Publication date: October 14, 2010Applicants: THE UNIVERSITY OF TOKYO, NEXT21 K.K., GAUSS K.K., National Institute of Advanced Industrial Science and TechnologyInventors: Yuichi Tei, Kay Teraoka, Shigeki Suzuki, Koutaro Shimizu, Katsuhisa Takane
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Publication number: 20100227804Abstract: It is an object of the present invention to provide a gel-forming composition which permits on-site administration and can form a gel exhibiting prescribed strength and sustained drug release, devices for the administration thereof, and a kit for medical use. A gel-forming composition which is composed of the first composition comprising a drug, a first gelling agent represented by the general formula (I) and the like, and the first diluent and the second composition comprising the second gelling agent represented by the general formula (I) and the like and the second diluent; and application devices and kits for medical use, which can hold the gel-forming composition. X1—(OCH2CH2)n—X2 (I) wherein X1 and X2 are each —R1COONHS (wherein R1 is C1-7 alkylene), —COR1COONHS, —NOCOR1—R2 (wherein R2 is maleimido), —R1NH2, —R1SH, or —CO2PhNO2, and n is an integer of 80 to 1000.Type: ApplicationFiled: January 17, 2007Publication date: September 9, 2010Applicants: THE UNIVERSITY OF TOKYO, NEXT21 K.K.Inventors: Nobuo Sasaki, Yuichi Tei, Shigeki Suzuki, Toru Hakukawa
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Publication number: 20100069455Abstract: A method for producing a bone filler basically comprising: a bone model producing step (step 1) for producing a bone model; a figure forming material filling step (step 2) for filling a figure forming material into a bone defect site of the bone model obtained in the bone model producing step; and a bone filler producing step (step 3) for producing a bone filler which is to be filled in a bone defect site based on the figure forming material filled in the bone defect site of the bone model in the figure forming material filling step.Type: ApplicationFiled: August 20, 2007Publication date: March 18, 2010Applicants: NEXT21 K.K., THE UNIVERSITY OF TOKYOInventors: Tsuyoshi Takato, Hideto Saijo, Yuchi Tei, Shigeki Suzuki, Koutaro Shimizu, Shinya Wasada
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Publication number: 20100035837Abstract: An object of the present invention is to provide an agent for treating or preventing vasospasm. An object of the present invention is to provide an agent for treating or preventing cerebral vasospasm as well as arterial vasospasm. Further, an object of the present invention is to provide an agent for treating or preventing cerebral ischemia and cerebral infarction. The above problems are solved by an agent for treating and preventing vasospasm, cerebral ischemia, or cerebral infarction, comprising trehalose as the active ingredient. It is possible, by using such a trehalose-comprising agent, to suppress phenomena such as contraction of blood vessel and thickening of tunica intima and tunica media and to prevent or treat vasospasm and vasospasm-dependent diseases.Type: ApplicationFiled: February 22, 2008Publication date: February 11, 2010Applicants: NEXT21 K.K., THE UNIVERSITY OF TOKYOInventors: Nobuo Sasaki, Yuichi Tei, Ryosuke Echigo, Shigeki Suzuki, Touru Hakukawa
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Publication number: 20100003301Abstract: A bone filling material having controlled release of a pharmaceutical agent such as a growth factor, and a drug release controlling carrier having controlled release of a pharmaceutical agent is provided by inactivating a functional group which can strongly bind to the pharmaceutical agent of the bone filling material with a blocking agent. The bone filling material and the drug release controlling carrier of the present invention comprises: a calcium-based material such as hydroxyapatite, carbonate apatite, fluorapatite, chlorapatite, ?-TCP, and ?-TCP; a blocking agent of the calcium-based material such as serine and dextran; and a pharmaceutical agent.Type: ApplicationFiled: November 8, 2007Publication date: January 7, 2010Applicants: The University of Tokyo, NEXT21 K.KInventors: Nobuo Sasaki, Yuichi Tei, Kazuyo Igawa, Shigeki Suzuki, Koutaro Shimizu