Patents Assigned to Yabashi Industries Co., Ltd.
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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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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: 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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Patent number: 6228339Abstract: A process for producing hydroxyapatite fibers is disclosed. The process comprises the steps of preparing a mixture of (1) calcium metaphosphate fibers and (2) calcium oxide, calcium hydroxide and/or calcium carbonate powder; heating the mixture to convert the calcium metaphosphate to hydroxyapatite; and removing calcium oxide in the heat-treated mixture by dissolving off from the resulting mixture.Type: GrantFiled: November 6, 1998Date of Patent: May 8, 2001Assignee: Yabashi Industries Co., Ltd.Inventors: Yoshio Ota, Tetsushi Iwashita, Toshihiro Kasuga, Yoshihiro Abe
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Patent number: 4857291Abstract: Disclosed is a novel process of producing plate-shaped calcium carbonate particles. The process comprises the steps of adding aqueous calcium hydrogen carbonate solution with a temperature of less than 50.degree. C. into an aqueous medium bath held at a temperature of not less than 50.degree. C. to generate plate-shaped calcium carbonate particles in the bath, the temperature of the bath being kept not less than 50.degree. C. during the addition of the aqueous calcium hydrogen carbonate solution; and recovering the generated plate-shape calcium carbonate particles.Type: GrantFiled: March 10, 1988Date of Patent: August 15, 1989Assignee: Yabashi Industries Co., Ltd.Inventors: Yoshio Ota, Norifumi Goto, Iwao Motoyama, Tetsushi Iwashita, Kunio Nomura
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Patent number: 4824654Abstract: Disclosed is a novel process of producing needle-shaped calcium carbonate particles. In the process of the present invention, aqueous calcium hydroxide solution is added to an aqueous medium bath with a temperature of not less than 60.degree. C. into which carbon dioxide gas or a carbon dioxide-containing gas is being blown to generate needle-shaped calcium carbonate particles. The temperature of the aqueous medium bath is kept not less than 60.degree. C. during the addition of the aqueous calcium hydroxide solution. Then the generated needle-shaped calcium carbonate particles are recovered.Type: GrantFiled: March 17, 1988Date of Patent: April 25, 1989Assignee: Yabashi Industries Co., Ltd.Inventors: Yoshio Ota, Norifumi Goto, Iwao Motoyama, Tetsushi Iwashita, Kunio Nomura