Patents by Inventor Teruo Ishiwata
Teruo Ishiwata 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).
-
Patent number: 11596505Abstract: A biological tissue rootage face (30) capable of closely bonding to a biological tissue (H, S) is composed of a biocompatible material and has numerous fingertip-shaped microvilli (41). The microvilli (41) have tip diameters in the order of nanometers. An implant (1) has the biological tissue rootage face (30) on a surface (11, 24) configured to root into a biological tissue (H, S). In a method for forming the biological tissue rootage face (30), a surface of a biocompatible material is subjected to laser nonthermal processing carried out by emitting a laser beam in air, to form numerous fingertip-shaped microvilli (41). The laser beam is a laser beam of an ultrashort pulse laser.Type: GrantFiled: June 25, 2020Date of Patent: March 7, 2023Assignee: NANTOH. CO., LTDInventor: Teruo Ishiwata
-
Patent number: 11051915Abstract: A biological tissue rootage face (30) capable of closely bonding to a biological tissue (H, S) is composed of a biocompatible material and has numerous fingertip-shaped microvilli (41). The microvilli (41) have tip diameters in the order of nanometers. An implant (1) has the biological tissue rootage face (30) on a surface (11, 24) configured to root into a biological tissue (H, S). In a method for forming the biological tissue rootage face (30), a surface of a biocompatible material is subjected to laser nonthermal processing carried out by emitting a laser beam in air, to form numerous fingertip-shaped microvilli (41). The laser beam is a laser beam of an ultrashort pulse laser.Type: GrantFiled: November 7, 2017Date of Patent: July 6, 2021Assignee: NANTOH. CO., LTD.Inventor: Teruo Ishiwata
-
Publication number: 20200345465Abstract: A biological tissue rootage face (30) capable of closely bonding to a biological tissue (H, S) is composed of a biocompatible material and has numerous fingertip-shaped microvilli (41). The microvilli (41) have tip diameters in the order of nanometers. An implant (1) has the biological tissue rootage face (30) on a surface (11, 24) configured to root into a biological tissue (H, S). In a method for forming the biological tissue rootage face (30), a surface of a biocompatible material is subjected to laser nonthermal processing carried out by emitting a laser beam in air, to form numerous fingertip-shaped microvilli (41). The laser beam is a laser beam of an ultrashort pulse laser.Type: ApplicationFiled: June 25, 2020Publication date: November 5, 2020Applicant: NANTOH. CO., LTDInventor: Teruo Ishiwata
-
Publication number: 20200253739Abstract: A stem (3) includes: a body section (10) which is inserted into a narrowing hole (Ha) formed in a femur (H) and osseointegrated; a neck section (20) which is joined to a tip of the body section (10) and protrudes from the narrowing hole (Ha) to transmit a load from an acetabular side to the body section (10); and a leg section (25) which is joined to a distal end of the body section (10) to hold a posture of the body section (10), wherein the neck section (20) and the leg section (25) are made of a biocompatible resin, and the body section (10) is made of a biocompatible metal, a biocompatible ceramic, or a biocompatible resin.Type: ApplicationFiled: August 8, 2018Publication date: August 13, 2020Applicant: NANTOH. CO., LTDInventor: Teruo Ishiwata
-
Patent number: 10588719Abstract: A fixture (10) to be embedded in a bone (H), comprising: a fixture body (11) through which a central hole (13) penetrates over the entire length thereof; and a cap body (21) which closes an opening on a root end side of the central hole (13). The cap body (21) has a first shaft section (24) to be fitted into the central hole (13). The central hole (13) has a first tapered hole section (14) which decreases in diameter from the root end side toward a top end side, and the cap body (21) has a first tapered shaft section (25) to be fitted into the first tapered hole section (14).Type: GrantFiled: April 10, 2017Date of Patent: March 17, 2020Assignee: NANTOH. CO., LTDInventor: Teruo Ishiwata
-
Publication number: 20200038150Abstract: A biological tissue rootage face (30) capable of closely bonding to a biological tissue (H, S) is composed of a biocompatible material and has numerous fingertip-shaped microvilli (41). The microvilli (41) have tip diameters in the order of nanometers. An implant (1) has the biological tissue rootage face (30) on a surface (11, 24) configured to root into a biological tissue (H, S). In a method for forming the biological tissue rootage face (30), a surface of a biocompatible material is subjected to laser nonthermal processing carried out by emitting a laser beam in air, to form numerous fingertip-shaped microvilli (41). The laser beam is a laser beam of an ultrashort pulse laser.Type: ApplicationFiled: November 7, 2017Publication date: February 6, 2020Applicant: NANTOH. CO., LTDInventor: Teruo ISHIWATA
-
Patent number: 10285796Abstract: A prosthesis-packaging case (20) comprises a primary packaging case (30) for housing a prosthesis (10) and a secondary packaging case (40) for housing the primary packaging case (30), wherein the prosthesis (10) and the primary packaging case (30) are respectively made of a material containing zirconia, the secondary packaging case (40) is made of a heat-resistant material, and the prosthesis (10) is subjected to ?-ray sterilization treatment and heat treatment while double-packaged with the primary packaging case (30) and secondary packaging case (40) to change a color of the prosthesis (10) to a color approximate to that of a natural bone.Type: GrantFiled: July 1, 2015Date of Patent: May 14, 2019Assignee: NANTOH. CO., LTDInventor: Teruo Ishiwata
-
Publication number: 20190117342Abstract: A fixture (10) to be embedded in a bone (H), comprising: a fixture body (11) through which a central hole (13) penetrates over the entire length thereof; and a cap body (21) which closes an opening on a root end side of the central hole (13). The cap body (21) has a first shaft section (24) to be fitted into the central hole (13). The central hole (13) has a first tapered hole section (14) which decreases in diameter from the root end side toward a top end side, and the cap body (21) has a first tapered shaft section (25) to be fitted into the first tapered hole section (14).Type: ApplicationFiled: April 10, 2017Publication date: April 25, 2019Applicant: NANTOH. CO., LTDInventor: Teruo Ishiwata
-
Publication number: 20180296314Abstract: A prosthesis-packaging case (20) comprises a primary packaging case (30) for housing a prosthesis (10) and a secondary packaging case (40) for housing the primary packaging case (30), wherein the prosthesis (10) and the primary packaging case (30) are respectively made of a material containing zirconia, the secondary packaging case (40) is made of a heat-resistant material, and the prosthesis (10) is subjected to ?-ray sterilization treatment and heat treatment while double-packaged with the primary packaging case (30) and secondary packaging case (40) to change a color of the prosthesis (10) to a color approximate to that of a natural bone.Type: ApplicationFiled: July 1, 2015Publication date: October 18, 2018Applicant: NANTOH. CO., LTDInventor: Teruo Ishiwata
-
Patent number: 9770313Abstract: A prosthesis that contains zirconia and supplements a defective portion of a natural bone, and that is changed to a color approximate to that of the natural bone by a heat treatment after a ?-ray sterilization treatment. The color approximate to that of the natural bone has an L* value of 60 to 90, an a* value of ?5 to 10, and a b* value of ?5 to 10 in the L*a*b* color space. The highest temperature in the heat treatment is 100° C. to 300° C. The prosthesis is a fixture of a dental implant embedded into and bonded to a natural bone, an abutment, an implant crown, and the like.Type: GrantFiled: July 18, 2014Date of Patent: September 26, 2017Assignee: NANTOH. CO., LTDInventor: Teruo Ishiwata
-
Patent number: 9549791Abstract: To obtain improved bio-affinity and high bone attachment in an implant body, a method of manufacture for the implant body, and a dental implant. The implant body is fixed in a contact configuration to bone, and includes the base material formed from zirconia, and a surface layer formed on the surface of the base material and having a lower hardness than the base material. Therefore, in addition to having superior mechanical strength due to the zirconia base material, the soft and flexible surface layer functions as a buffer layer to mitigate the difference in the degree of hardness between the bone and the base material, and therefore the soft surface further improves the bone adhesion characteristics.Type: GrantFiled: April 17, 2014Date of Patent: January 24, 2017Assignee: Nanto Seimitsu Co., Ltd.Inventor: Teruo Ishiwata
-
Publication number: 20160022391Abstract: A prosthesis that contains zirconia and supplements a defective portion of a natural bone, and that is changed to a color approximate to that of the natural bone by a heat treatment after a ?-ray sterilization treatment. The color approximate to that of the natural bone has an L* value of 60 to 90, an a* value of ?5 to 10, and a b* value of ?5 to 10 in the L*a*b* color space. The highest temperature in the heat treatment is 100° C. to 300° C. The prosthesis is a fixture of a dental implant embedded into and bonded to a natural bone, an abutment, an implant crown, and the like.Type: ApplicationFiled: July 18, 2014Publication date: January 28, 2016Applicant: NANTOH. CO., LTDInventor: Teruo Ishiwata
-
Publication number: 20140227663Abstract: To obtain improved bio-affinity and high bone attachment in an implant body, a method of manufacture for the implant body, and a dental implant. The implant body is fixed in a contact configuration to bone, and includes the base material formed from zirconia, and a surface layer formed on the surface of the base material and having a lower hardness than the base material. Therefore, in addition to having superior mechanical strength due to the zirconia base material, the soft and flexible surface layer functions as a buffer layer to mitigate the difference in the degree of hardness between the bone and the base material, and therefore the soft surface further improves the bone adhesion characteristics.Type: ApplicationFiled: April 17, 2014Publication date: August 14, 2014Applicant: NANTO SEIMITSU CO., LTD.Inventor: Teruo Ishiwata
-
Patent number: 8740615Abstract: An implant that includes an implant body in which a fitting hole portion having a taper shape is formed, and an abutment having a fitting shaft portion having a taper shape. A pressure-withstanding mechanism configured by the fitting hole portion and the fitting shaft portion and a rotation-preventing mechanism preventing rotation of the abutment with respect to the implant body are integrally formed.Type: GrantFiled: November 24, 2011Date of Patent: June 3, 2014Assignee: Nanto. Precision Co., LtdInventor: Teruo Ishiwata
-
Publication number: 20130224689Abstract: An implant that includes an implant body in which a fitting hole portion having a taper shape is formed, and an abutment having a fitting shaft portion having a taper shape. A pressure-withstanding mechanism configured by the fitting hole portion and the fitting shaft portion and a rotation-preventing mechanism preventing rotation of the abutment with respect to the implant body are integrally formed.Type: ApplicationFiled: November 24, 2011Publication date: August 29, 2013Applicant: Nanto.Precision Co., LtdInventor: Teruo Ishiwata
-
Publication number: 20110136078Abstract: To obtain improved bio-affinity and high bone attachment in an implant body, a method of manufacture for the implant body, and a dental implant. The implant body is fixed in a contact configuration to bone, and includes the base material formed from zirconia, and a surface layer formed on the surface of the base material and having a lower hardness than the base material. Therefore, in addition to having superior mechanical strength due to the zirconia base material, the soft and flexible surface layer functions as a buffer layer to mitigate the difference in the degree of hardness between the bone and the base material, and therefore the soft surface further improves the bone adhesion characteristics.Type: ApplicationFiled: May 29, 2009Publication date: June 9, 2011Applicant: NANTO SEIMITSU CO., LTD.Inventor: Teruo Ishiwata
-
Patent number: D735337Type: GrantFiled: November 26, 2012Date of Patent: July 28, 2015Assignee: NANTOH CO., LTD.Inventor: Teruo Ishiwata
-
Patent number: D747486Type: GrantFiled: February 23, 2015Date of Patent: January 12, 2016Assignee: NANTOH CO., LTD.Inventor: Teruo Ishiwata
-
Patent number: D748263Type: GrantFiled: February 23, 2015Date of Patent: January 26, 2016Assignee: NANTOH CO., LTD.Inventor: Teruo Ishiwata