Patents by Inventor Shuji Aoyagi
Shuji Aoyagi 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: 7494539Abstract: To make a color tone similar to that of dentin of a tooth at a low cost without discoloration when baking, a dental ceramics material is produced by: mixing a pink coloring agent and a yellow coloring agent with zirconium oxide containing a stabilizer while having a mixing ratio of 0.001 to 5 wt. % respectively; and baking it, where the pink coloring agent is obtained by dissolving manganese oxide in aluminum oxide as a solid solution, the yellow coloring agent is obtained by dissolving vanadium oxide in zirconium oxide as a solid solution, the zirconium oxide contains 0.1 to 30 wt. % aluminum oxide if necessary, the stabilizer is one or more kinds selected from a group including yttrium oxide, magnesium oxide, calcium oxide, and cerium oxide, and the content thereof is preferably 3 to 7 wt. %.Type: GrantFiled: January 29, 2007Date of Patent: February 24, 2009Assignee: GC CorporationInventors: Keisuke Ikushima, Shuji Aoyagi
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Publication number: 20080076092Abstract: To improve gingival sealing property without decreasing aesthetic property, an abutment coping 3 for a dental implant fixture has a male screw 2a engaged to a female screw 1a formed at the intra-oral side of a dental implant fixture 1, and is cylindrically or taperedly projected at the intra-oral side of the fixture 1, and an end part of the abutment coping 3 at the fixture 1 side is made of a white ceramic and fixed at the abutment 2 so as to expose an outer peripheral surface of the abutment 2 from a part between the end part and the intra-oral side surface of the fixture 1, or to have a clearance G being 1.3 mm or less and starting from an outer peripheral surface of the abutment 2 at a part between the end part and the intra-oral side surface of the fixture 1.Type: ApplicationFiled: September 26, 2007Publication date: March 27, 2008Applicant: GC CorporationInventors: Tsunehiko YAMASHITA, Masayuki TAKAYAMA, Yuki SAKAMOTO, Shuji AOYAGI, Yusuke NOGUCHI, Masatoshi YOSHINAGA
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Publication number: 20070182042Abstract: To make a color tone similar to that of dentin of a tooth at a low cost without discoloration when baking, a dental ceramics material is produced by: mixing a pink coloring agent and a yellow coloring agent with zirconium oxide containing a stabilizer while having a mixing ratio of 0.001 to 5 wt. % respectively; and baking it, where the pink coloring agent is obtained by dissolving manganese oxide in aluminum oxide as a solid solution, the yellow coloring agent is obtained by dissolving vanadium oxide in zirconium oxide as a solid solution, the zirconium oxide contains 0.1 to 30 wt. % aluminum oxide if necessary, the stabilizer is one or more kinds selected from a group including yttrium oxide, magnesium oxide, calcium oxide, and cerium oxide, and the content thereof is preferably 3 to 7 wt. %.Type: ApplicationFiled: January 29, 2007Publication date: August 9, 2007Applicant: GC CorporationInventors: Keisuke IKUSHIMA, Shuji Aoyagi
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Patent number: 6869284Abstract: A capsule for dental restoration material capable of administering, immediately after mixing, a mixture substantially free of air bubbles to a patient site to be restored is disclosed. The capsule comprises a dental restoration material comprising two components of definite amounts of previously weighed powder component and liquid component accommodated in a cylindrical mixing compartment in an isolated state from each other, and an air-permeable filter that does not allow the powder component to exit the mixing compartment, but can ventilate air within the mixing compartment into the outside of the mixing compartment.Type: GrantFiled: July 3, 2003Date of Patent: March 22, 2005Assignee: GC CorporationInventors: Shuji Aoyagi, Yoshimasa Suzuki, Masaaki Kaneko, Yoshihisa Mukasa
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Patent number: 6821012Abstract: There is provided a mixer for a capsule for dental restoration material used for mixing a powder component and a liquid component in a capsule accommodating therein the powder component and the liquid component for restoration of a tooth in the dental remedy field, by rendering a mixing compartment in vacuo so as to make it in a good state where the mixture does not substantially contain air bubbles.Type: GrantFiled: January 12, 2004Date of Patent: November 23, 2004Assignee: GC CorporationInventors: Yoshimasa Suzuki, Shuji Aoyagi, Masaaki Kaneko, Yoshihisa Mukasa
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Patent number: 6776516Abstract: There is provided a mixer for a capsule for dental restoration material used for mixing a powder component and a liquid component in a capsule accommodating therein the powder component and the liquid component for restoration of a tooth in the dental remedy field, by rendering a mixing compartment in vacuo so as to make it in a good state where the mixture does not substantially contain air bubbles.Type: GrantFiled: May 10, 2001Date of Patent: August 17, 2004Assignee: GC CorporationInventors: Yoshimasa Suzuki, Shuji Aoyagi, Masaaki Kaneko, Yoshihisa Mukasa
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Publication number: 20040141408Abstract: There is provided a mixer for a capsule for dental restoration material used for mixing a powder component and a liquid component in a capsule accommodating therein the powder component and the liquid component for restoration of a tooth in the dental remedy field, by rendering a mixing compartment in vacuo so as to make it in a good state where the mixture does not substantially contain air bubbles.Type: ApplicationFiled: January 12, 2004Publication date: July 22, 2004Applicant: GC CorporationInventors: Yoshimasa Suzuki, Shuji Aoyagi, Masaaki Kaneko, Yoshihisa Mukasa
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Publication number: 20040104133Abstract: There is provided a capsule for dental restoration material, which can administer to a site to be restored of a patient with a mixture in a good state where air bubbles are not substantially contained, immediately after mixing. In the capsule for dental restoration material for directly administering to a restoration site of a tooth with the mixture prepared by subjecting a dental restoration material comprising two components of definite amounts of previously weighed powder component and liquid component accommodated in a cylindrical mixing compartment in an isolated state from each other to making the liquid component flow into the mixing compartment and mixing the both components, an air-permeable filter that does not pass the powder component therethrough but can ventilate air within the mixing compartment into the outside of the mixing compartment is placed in at least a part of a peripheral wall of the mixing compartment.Type: ApplicationFiled: July 3, 2003Publication date: June 3, 2004Applicant: GC CorporationInventors: Shuji Aoyagi, Yoshimasa Suzuki, Masaaki Kaneko, Yoshihisa Mukasa
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Patent number: 6682347Abstract: There is provided a capsule for dental restoration material, which can administer to a site to be restored of a patient with a mixture in a good state where air bubbles are not substantially contained, immediately after mixing. In the capsule for dental restoration material for directly administering to a restoration site of a tooth with the mixture prepared by subjecting a dental restoration material comprising two components of definite amounts of previously weighed powder component and liquid component accommodated in a cylindrical mixing compartment in an isolated state from each other to making the liquid component flow into the mixing compartment and mixing the both components, an air-permeable filter that does not pass the powder component therethrough but can ventilate air within the mixing compartment into the outside of the mixing compartment is placed in at least a part of a peripheral wall of the mixing compartment.Type: GrantFiled: May 9, 2001Date of Patent: January 27, 2004Assignee: GC CorporationInventors: Shuji Aoyagi, Yoshimasa Suzuki, Masaaki Kaneko, Yoshihisa Mukasa
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Patent number: 6386872Abstract: A capsule contains dental restoration material for applying directly to a site to be restored. A capsule main body has a mixing compartment for a powder component and a first aperture forming portion to form an outlet hole. A liquid cup has a compartment for a liquid component and a second aperture forming portion to form an outlet hole for the liquid component. A stopper is provided on an external surface near a rear end portion for inhibiting sliding of the cup into the main body while the second aperture forming portion is being broken through, but not inhibiting the cup to slide into the main body when a large force is applied. A plunger has a projection for breaking through the second and first aperture forming portions. A nozzle has a rear end portion with a shape corresponding to the tip portion of the main body.Type: GrantFiled: January 3, 2001Date of Patent: May 14, 2002Assignee: GC CorporationInventors: Yoshihisa Mukasa, Yoshimasa Suzuki, Shuji Aoyagi
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Publication number: 20010055238Abstract: There is provided a mixer for a capsule for dental restoration material used for mixing a powder component and a liquid component in a capsule accommodating therein the powder component and the liquid component for restoration of a tooth in the dental remedy field, by rendering a mixing compartment in vacuo so as to make it in a good state where the mixture does not substantially contain air bubbles.Type: ApplicationFiled: May 10, 2001Publication date: December 27, 2001Applicant: GC CorporationInventors: Yoshimasa Suzuki, Shuji Aoyagi, Masaaki Kaneko, Yoshihisa Mukasa
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Publication number: 20010053511Abstract: There is provided a capsule for dental restoration material, which can administer to a site to be restored of a patient with a mixture in a good state where air bubbles are not substantially contained, immediately after mixing. In the capsule for dental restoration material for directly administering to a restoration site of a tooth with the mixture prepared by subjecting a dental restoration material comprising two components of definite amounts of previously weighed powder component and liquid component accommodated in a cylindrical mixing compartment in an isolated state from each other to making the liquid component flow into the mixing compartment and mixing the both components, an air-permeable filter that does not pass the powder component therethrough but can ventilate air within the mixing compartment into the outside of the mixing compartment is placed in at least a part of a peripheral wall of the mixing compartment.Type: ApplicationFiled: May 9, 2001Publication date: December 20, 2001Applicant: GC CorporationInventors: Shuji Aoyagi, Yoshimasa Suzuki, Masaaki Kaneko, Yoshihisa Mukasa
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Patent number: D611604Type: GrantFiled: July 31, 2008Date of Patent: March 9, 2010Assignee: GC CorporationInventor: Shuji Aoyagi