Patents by Inventor Yoshio Ota
Yoshio Ota 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: 10814000Abstract: A guided bone regeneration material is disclosed. The guided bone regeneration material includes biodegradable fibers produced by an electrospinning method. The biodegradable fibers produced by the method include a silicon-releasing calcium carbonate and a biodegradable polymer. The silicon-releasing calcium carbonate is a composite of siloxane and calcium carbonate of vaterite phase. The biodegradable fibers may be coated with apatite. When the guided bone regeneration material is immersed in a neutral aqueous solution, silicon species ions are eluted from the calcium carbonate. The guided bone regeneration material excels in bone reconstruction ability.Type: GrantFiled: December 20, 2018Date of Patent: October 27, 2020Assignees: NATIONAL UNIVERSITY CORPORATION NAGOYA INSTITUTE OF TECHNOLOGY, ORTHOREBIRTH CO., LTD., YAMAHACHI DENTAL MFG., CO., YABASHI INDUSTRIES, CO., LTD.Inventors: Toshihiro Kasuga, Yoshio Ota, Takashi Wakita
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Publication number: 20190117774Abstract: A guided bone regeneration material is disclosed. The guided bone regeneration material includes biodegradable fibers produced by an electrospinning method. The biodegradable fibers produced by the method include a silicon-releasing calcium carbonate and a biodegradable polymer. The silicon-releasing calcium carbonate is a composite of siloxane and calcium carbonate of vaterite phase. The biodegradable fibers may be coated with apatite. When the guided bone regeneration material is immersed in a neutral aqueous solution, silicon species ions are eluted from the calcium carbonate. The guided bone regeneration material excels in bone reconstruction ability.Type: ApplicationFiled: December 20, 2018Publication date: April 25, 2019Applicants: NATIONAL UNIVERSITY CORPORATION NAGOYA INSTITUTE O F TECHNOLOGY, YABASHI INDUSTRIES, CO., LTD., YAMAHACHI DENTAL MFG., CO., ORTHOREBIRTH CO., LTD.Inventors: Toshihiro Kasuga, Yoshio Ota, Takashi Wakita
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Publication number: 20180369382Abstract: A guided bone regeneration material is disclosed. The guided bone regeneration material includes biodegradable fibers produced by an electrospinning method. The biodegradable fibers produced by the method include a silicon-releasing calcium carbonate and a biodegradable polymer. The silicon-releasing calcium carbonate is a composite of siloxane and calcium carbonate of vaterite phase. The biodegradable fibers may be coated with apatite. When the guided bone regeneration material is immersed in a neutral aqueous solution, silicon species ions are eluted from the calcium carbonate. The guided bone regeneration material excels in bone reconstruction ability.Type: ApplicationFiled: August 31, 2018Publication date: December 27, 2018Applicants: NATIONAL UNIVERSITY CORPORATION NAGOYA INSTITUTE OF TECHNOLOGY, YABASHI INDUSTRIES, CO., LTD., YAMAHACHI DENTAL MFG., CO., ORTHOREBIRTH CO., LTD.Inventors: Toshihiro Kasuga, Yoshio Ota, Takashi Wakita
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Patent number: 10159737Abstract: A guided bone regeneration material is disclosed. The guided bone regeneration material includes biodegradable fibers produced by an electrospinning method. The biodegradable fibers produced by the method include a silicon-releasing calcium carbonate and a biodegradable polymer. The silicon-releasing calcium carbonate is a composite of siloxane and calcium carbonate of vaterite phase. The biodegradable fibers may be coated with apatite. When the guided bone regeneration material is immersed in a neutral aqueous solution, silicon species ions are eluted from the calcium carbonate. The guided bone regeneration material excels in bone reconstruction ability.Type: GrantFiled: August 31, 2018Date of Patent: December 25, 2018Assignees: NATIONAL UNIVERSITY CORPORATION NAGOYA INSTITUTE OF TECHNOLOGY, YABASHI INDUSTRIES CO., LTD., YAMAHACHI DENTAL MFG., CO., ORTHOREBIRTH CO., LTD.Inventors: Toshihiro Kasuga, Yoshio Ota, Takashi Wakita
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Patent number: 10092650Abstract: A guided bone regeneration material is disclosed. The guided bone regeneration material includes biodegradable fibers produced by an electrospinning method. The biodegradable fibers produced by the method include a silicon-releasing calcium carbonate and a biodegradable polymer. The silicon-releasing calcium carbonate is a composite of siloxane and calcium carbonate of vaterite phase. The biodegradable fibers may be coated with apatite. When the guided bone regeneration material is immersed in a neutral aqueous solution, silicon species ions are eluted from the calcium carbonate. The guided bone regeneration material excels in bone reconstruction ability.Type: GrantFiled: May 5, 2014Date of Patent: October 9, 2018Assignees: National University Corporation, Nagoya Institute of Technology, Yabashi Industries Co., LTD, Yamahachi Dental Mfg., Co, Orthorebirth Co. Ltd.Inventors: Toshihiro Kasuga, Yoshio Ota, Takashi Wakita
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Patent number: 9539365Abstract: A fiber wadding for filling bone defects having a flocculent three-dimensional structure is disclosed. The fiber wadding includes a plurality of fibers that contain a biodegradable resin as a principal component and a siloxane. Outside diameter of the plurality of fibers of the wadding is from about 0.05 ?m to about 30 ?m. Bulk density of the fiber wadding is about 0.005-0.3 g/cm3.Type: GrantFiled: September 24, 2014Date of Patent: January 10, 2017Assignees: Orthorebirth Co. Ltd., Nagoya Institute of TechnologyInventors: Toshihiro Kasuga, Akiko Obata, Kie Fujikura, Yoshio Ota, Xianfeng Yao
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Patent number: 9498561Abstract: A method for producing a flocculent three dimensional fibrous bioactive material using an electrospinning process includes electrospinning a biodegradable fiber by applying an electrical charge to a nozzle of an electrospinning apparatus such that a spinning solution contained therein is made into an electrospun fiber, which is attracted toward a collector container that is electrically grounded and is filled with an ethanol liquid; receiving the electrospun fiber emitted from the nozzle on a surface of the ethanol liquid in the collector container; recovering and drying the electrospun fiber to obtain the flocculent three dimensional fibrous bioactive material having a bulk density of from about 0.01 g/cm3 to about 0.1 g/cm3 as measured in accordance with JIS L 1097.Type: GrantFiled: June 2, 2015Date of Patent: November 22, 2016Assignees: Orthorebirth Co. Ltd., Nagoya Institute of TechnologyInventors: Toshihiro Kasuga, Akiko Obata, Kie Fujikura, Yoshio Ota, Xianfeng Yao
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Publication number: 20150265750Abstract: A method for producing a flocculent three dimensional fibrous bioactive material using an electrospinning process includes electrospinning a biodegradable fiber by applying an electrical charge to a nozzle of an electrospinning apparatus such that a spinning solution contained therein is made into an electrospun fiber, which is attracted toward a collector container that is electrically grounded and is filled with an ethanol liquid; receiving the electrospun fiber emitted from the nozzle on a surface of the ethanol liquid in the collector container; recovering and drying the electrospun fiber to obtain the flocculent three dimensional fibrous bioactive material having a bulk density of from about 0.01 g/cm3 to about 0.1 g/cm3 as measured in accordance with JIS L 1097.Type: ApplicationFiled: June 2, 2015Publication date: September 24, 2015Inventors: Toshihiro Kasuga, Akiko Obata, Kie Fujikura, Yoshio Ota, Xianfeng Yao
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Publication number: 20150079147Abstract: A fiber wadding for filling bone defects having a flocculent three-dimensional structure is disclosed. The fiber wadding includes a plurality of fibers that contain a biodegradable resin as a principal component and a siloxane. Outside diameter of the plurality of fibers of the wadding is from about 0.05 ?m to about 30 ?m. Bulk density of the fiber wadding is about 0.005-0.3 g/cm3.Type: ApplicationFiled: September 24, 2014Publication date: March 19, 2015Inventors: Toshihiro Kasuga, Akiko Obata, Kie Fujikura, Yoshio Ota, Xianfeng Yao
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Patent number: 8853298Abstract: A fiber wadding for filling bone defects having a flocculent three-dimensional structure is disclosed. The fiber wadding includes a plurality of fibers that contain a biodegradable resin as a principal component and a siloxane. Outside diameter of the plurality of fibers of the wadding is from about 0.05 ?m to about 30 ?m. Bulk density of the fiber wadding is about 0.005-0.3 g/cm3.Type: GrantFiled: January 13, 2012Date of Patent: October 7, 2014Assignees: Nagoya Institute of Technology, Orthorebirth Co. Ltd.Inventors: Toshihiro Kasuga, Akiko Obata, Kie Fujikura, Yoshio Ota, Xianfeng Yao
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Publication number: 20140242186Abstract: A guided bone regeneration material is disclosed. The guided bone regeneration material includes biodegradable fibers produced by an electrospinning method. The biodegradable fibers produced by the method include a silicon-releasing calcium carbonate and a biodegradable polymer. The silicon-releasing calcium carbonate is a composite of siloxane and calcium carbonate of vaterite phase. The biodegradable fibers may be coated with apatite. When the guided bone regeneration material is immersed in a neutral aqueous solution, silicon species ions are eluted from the calcium carbonate. The guided bone regeneration material excels in bone reconstruction ability.Type: ApplicationFiled: May 5, 2014Publication date: August 28, 2014Applicant: ORTHOREBIRTH CO. LTD.Inventors: Toshihiro Kasuga, Yoshio Ota, Takashi Wakita
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Publication number: 20120315319Abstract: A guided bone regeneration material is disclosed. The guided bone regeneration material includes biodegradable fibers produced by an electro spinning method. The biodegradable fibers produced by the method include a silicon-releasing calcium carbonate and a biodegradable polymer. The silicon-releasing calcium carbonate is a composite of siloxane and calcium carbonate of vaterite phase. The biodegradable fibers may be coated with apatite. When the guided bone regeneration material is immersed in a neutral aqueous solution, silicon species ions are eluted from the calcium carbonate. The guided bone regeneration material excels in bone reconstruction ability.Type: ApplicationFiled: August 22, 2012Publication date: December 13, 2012Applicants: NATIONAL UNIVERSITY CORPORATION NAGOYA INSTITUTE OF TECHNOLOGY, YAMAHACHI DENTAL MFG., CO., YABASHI INDUSTRIES CO., LTD.Inventors: Toshihiro Kasuga, Yoshio Ota, Takashi Wakita
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Publication number: 20120219595Abstract: A fiber wadding formed from a biodegradable polymer fiber containing calcium carbonate fine particles including silicon that is characterized in that hydroxyapatite is precipitated and scattered nearly uniformly on the surface of the biodegradable polymer fiber is disclosed. Further, a method for production of fiber wadding that includes the steps of heating and kneading silicon-containing calcium carbonate fine particles and a biodegradable polymer to produce a composite, dissolving the composite by mixing the composite with a solvent to obtain a spinning solution, processing the spinning solution into fiber wadding by using electrospinning method, and alternatingly immersing the fiber wadding in a calcium aqueous solution and a phosphate aqueous solution to cause precipitation of hydroxyapatite in an approximately uniformly scattered manner on the surface of the fibers is disclosed.Type: ApplicationFiled: February 3, 2012Publication date: August 30, 2012Applicants: NAGOYA INSTITUTE OF TECHNOLOGY, ORTHOREBIRTH CO. LTD.Inventors: Yoshio Ota, Xianfeng Yao, Toshihiro Kasuga
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Patent number: 8230542Abstract: The present invention is a particle removing member of a substrate processing equipment including a particle removing layer in which a time necessary for a signal intensity of free induction decay measured by a pulse NMR-Solid Echo method to decay to 37% of an initial value at a measurement temperature of 100 degrees centigrade is 1000 ?s or less, in particular, a particle removing sheet including the above-constituted particle removing layer on a support, and a conveying member with particle removing function formed by adhering the above-constituted particle removing sheet on the conveying member, and furthermore a method of removing particle of a substrate processing equipment, including conveying the above-constituted conveying member with particle removing function into a substrate processing equipment.Type: GrantFiled: January 3, 2012Date of Patent: July 31, 2012Assignee: Nitto Denko CorporationInventors: Koichi Hashimoto, Yoshio Ota
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Publication number: 20120131757Abstract: The present invention intends to provide a particle removing member of a substrate processing equipment which can be assuredly conveyed into the substrate processing equipment and can conveniently and assuredly remove an adhered foreign matter, and a particle removing method of a substrate processing equipment that uses the particle removing member.Type: ApplicationFiled: January 3, 2012Publication date: May 31, 2012Applicant: NITTO DENKO CORPORATIONInventors: Koichi HASHIMOTO, Yoshio OTA
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Publication number: 20120136090Abstract: A fiber wadding for filling bone defects having a flocculent three-dimensional structure is disclosed. The fiber wadding includes a plurality of fibers that contain a biodegradable resin as a principal component and a siloxane. Outside diameter of the plurality of fibers of the wadding is from about 0.05 ?m to about 30 ?m. Bulk density of the fiber wadding is about 0.005-0.3 g/cm3.Type: ApplicationFiled: January 13, 2012Publication date: May 31, 2012Applicants: ORTHOREBIRTH CO. LTD., National University Corporation, Nagoya Institute of TechnologyInventors: Toshihiro Kasuga, Akiko Obata, Kie Fujikura, Yoshio Ota, Xianfeng Yao
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Patent number: 8108960Abstract: The present invention intends to provide a particle removing member of a substrate processing equipment which can be assuredly conveyed into the substrate processing equipment and can conveniently and assuredly remove an adhered foreign matter, and a particle removing method of a substrate processing equipment that uses the particle removing member.Type: GrantFiled: February 24, 2005Date of Patent: February 7, 2012Assignee: Nitto Denko CorporationInventors: Koichi Hashimoto, Yoshio Ota
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Patent number: 7736565Abstract: The invention provides process for producing a PPE resin composition containing PPE powder using an extruder comprising: a vent pipe; a polyphenylene ether (herein after referred to as “PPE”) powder supplying pipe; an extruder supply hopper having an opening with a wall angle of 60° or more; and an extruder unit, wherein the vent pipe and the PPE powder supplying pipe each have an terminal orifice located in the opening of the extruder supply hopper, and wherein the PPE powder supplying pipe is disposed at a gear box-side portion of the extruder supply hopper, and the vent pipe is disposed at a die-side portion, relative to the PPE powder supplying pipe, of the extruder supply hopper, which process comprises the steps of: supplying the PPE powder to a gear box-side wall of the extruder supply hopper through the PPE powder supplying pipe; removing a gas accompanying the PPE powder in an effective amount through the vent pipe; and melt-kneading a mixture containing the degassed PPE powder with the extruder unitType: GrantFiled: May 11, 2005Date of Patent: June 15, 2010Assignee: Asahi Kasei Chemicals CorporationInventor: Yoshio Ota
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Publication number: 20100119564Abstract: Disclosed is a guided bone regeneration membrane including a novel mechanism that effectively induces a bone reconstruction ability. The mechanism is provided by forming a bi-layered structure of a first nonwoven fabric layer containing a silicon-releasable calcium carbonate and a poly(lactic acid) as principal components and a second nonwoven fabric layer containing a poly(lactic acid) as a principal component; and coating the first nonwoven fabric layer with an apatite. The guided bone regeneration membrane is available by using a nonwoven fabric manufacturing technique through electrospinning and a simulated body fluid soaking technique.Type: ApplicationFiled: November 13, 2009Publication date: May 13, 2010Applicants: NATIONAL UNIVERSITY CORPORATION NAGOYA INSTITUTE OF TECHNOLOGY, YABASHI INDUSTRIES CO., LTD., YAMAHACHI DENTAL MFG., CO.Inventors: Toshihiro Kasuga, Yoshio Ota, Takashi Wakita
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Publication number: 20060255498Abstract: The invention provides process for producing a PPE resin composition containing PPE powder using an extruder comprising: a vent pipe; a polyphenylene ether (herein after referred to as “PPE”) powder supplying pipe; an extruder supply hopper having an opening with a wall angle of 60° or more; and an extruder unit, wherein the vent pipe and the PPE powder supplying pipe each have an terminal orifice located in the opening of the extruder supply hopper, and wherein the PPE powder supplying pipe is disposed at a gear box-side portion of the extruder supply hopper, and the vent pipe is disposed at a die-side portion, relative to the PPE powder supplying pipe, of the extruder supply hopper, which process comprises the steps of: supplying the PPE powder to a gear box-side wall of the extruder supply hopper through the PPE powder supplying pipe; removing a gas accompanying the PPE powder in an effective amount through the vent pipe; and melt-kneading a mixture containing the degassed PPE powder with the extruder unitType: ApplicationFiled: May 11, 2005Publication date: November 16, 2006Applicant: ASAHI KASEI CHEMICALS CORPORATIONInventor: Yoshio Ota