Patents by Inventor Kenneth Isamu Kobayashi
Kenneth Isamu Kobayashi 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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Publication number: 20180125670Abstract: A method for implantation of an intervertebral implant for fusing vertebrae is disclosed. The implant may comprise a body constructed of a radiolucent material and having a thickness between a superior and an inferior face greatest at a middle portion of the body and tapered toward each end, and two vertical through-channels extending through the body from the superior to the inferior face, the channels being spaced from one another in a way to define a wall extending between the channels from the superior to the inferior face; and at least three radiopaque markers extending substantially through the body from the superior to the inferior face and disposed in the body so as to be enclosed in the radiolucent material of the body from the superior to the inferior face to indicate implant location and size in postoperative spinal scans.Type: ApplicationFiled: October 23, 2017Publication date: May 10, 2018Applicant: DePuy Synthes Products, Inc.Inventors: Dominique Messerli, David Gerber, David Paul, Kenneth Isamu Kobayashi
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Patent number: 9265542Abstract: A bone fixation element includes a threaded head and a shaft extending along a longitudinal axis from a proximal end to a distal end, an outer surface of the head being one of carburized and nitrided and including a first groove extending into an outer surface of the head along a path interrupting the threading and extending along an angle counter to an angle of the threading.Type: GrantFiled: June 27, 2012Date of Patent: February 23, 2016Assignee: DEPUY SYNTHES PRODUCTS, INC.Inventors: Kenny Chi Beng Koay, Roderick Daniel McMillan, Kenneth Isamu Kobayashi, Rene Haag, Robert Limouze, Mike Wahl, Mirko Rocci
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Patent number: 8690949Abstract: An intervertebral implant for fusing vertebrae is disclosed. The implant may have a body with curved, posterior and anterior faces separated by two narrow implant ends, superior and inferior faces having a plurality of undulating surfaces for contacting vertebral endplates, and at least one depression in the anterior or posterior face for engagement by an insertion tool. The implant may also have one or more vertical through-channels extending through the implant from the superior face to the inferior face, a chamfer on the superior and inferior surfaces at one of the narrow implant ends, and/or a beveled edge along a perimeter of the superior and inferior faces. The implant configuration facilitates transforaminal insertion of the implant into a symmetric position about the midline of the spine so that a single implant provides balanced support to the spinal column. The implant may be formed of a plurality of interconnecting bodies assembled to form a single unit.Type: GrantFiled: April 12, 2013Date of Patent: April 8, 2014Assignee: DePuy Synthes Products, LLCInventors: Dominique Messerli, David Gerber, David Paul, Kenneth Isamu Kobayashi
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Publication number: 20140005728Abstract: A bone fixation element includes a threaded head and a shaft extending along a longitudinal axis from a proximal end to a distal end, an outer surface of the head being one of carburized and nitrided and including a first groove extending into an outer surface of the head along a path interrupting the threading and extending along an angle counter to an angle of the threading.Type: ApplicationFiled: June 27, 2012Publication date: January 2, 2014Inventors: Kenny Chi Beng Koay, Roderick Daniel McMillan, Kenneth Isamu Kobayashi, Rene Haag, Robert Limouze, Mike Wahl, Mirko Rocci
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Patent number: 8435300Abstract: An intervertebral implant for fusing vertebrae is disclosed. The implant may have a body with curved, posterior and anterior faces separated by two narrow implant ends, superior and inferior faces having a plurality of undulating surfaces for contacting vertebral endplates, and at least one depression in the anterior or posterior face for engagement by an insertion tool. The implant may also have one or more vertical through-channels extending through the implant from the superior face to the inferior face, a chamfer on the superior and inferior surfaces at one of the narrow implant ends, and/or a beveled edge along a perimeter of the superior and inferior faces. The implant configuration facilitates transforaminal insertion of the implant into a symmetric position about the midline of the spine so that a single implant provides balanced support to the spinal column. The implant may be formed of a plurality of interconnecting bodies assembled to form a single unit.Type: GrantFiled: March 7, 2011Date of Patent: May 7, 2013Assignee: DePuy Synthes Products, LLCInventors: Dominique Messerli, David Gerber, David Paul, Kenneth Isamu Kobayashi
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Publication number: 20120303067Abstract: A device for compressing fractured portions of a bone includes (a) first and second jaws movable relative to one another to compress fractured portions of a bone therebetween, the first and second jaws being connected to one another such that bone gripping portions thereof remain parallel to one another throughout a permitted range of motion of the first and second jaws and (b) a first guide sleeve attached to the distal end of the first jaw and a second guide sleeve attached to the distal end of the second jaw. The first and second guide sleeves have central axes coaxial with one another.Type: ApplicationFiled: May 24, 2011Publication date: November 29, 2012Inventors: PETER CHARLES VAN CITTERS, KENNETH ISAMU KOBAYASHI
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Patent number: 7223292Abstract: An intervertebral implant for fusing vertebrae is disclosed. The implant has a body with curved, substantially parallel posterior and anterior faces separated by, two narrow implant ends, superior and inferior faces having a plurality of undulating surfaces for contacting vertebral endplates, and at least one depression in the anterior or posterior face for engagement by an insertion tool, at least two vertical through-channels extending through the implant, a chamfer on the superior and inferior surfaces at one of the narrow implant ends, and a beveled edge along a perimeter of the superior and inferior faces. The implant configuration facilitates transforaminal insertion of the implant into a symmetric position about the midline of the spine so that a single implant provides balanced support to the spinal column. The implant may be formed of a plurality of interconnecting bodies forming a single unit. An implantation kit and method are also disclosed.Type: GrantFiled: December 12, 2005Date of Patent: May 29, 2007Assignee: SYNTHES (U.S.A.)Inventors: Dominique Messerli, David Gerber, David Paul, Kenneth Isamu Kobayashi
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Patent number: 6974480Abstract: An intervertebral implant for fusing vertebrae is disclosed. The implant has a body with curved, substantially parallel posterior and anterior faces separated by two narrow implant ends, superior and inferior faces having a plurality of undulating surfaces for contacting upper and lower vertebral endplates, and at least one depression in the anterior or posterior face for engagement by an insertion tool, at least two vertical through-channels extending through the implant from the superior face to the inferior face, a chamfer on the superior and inferior surfaces at one of the narrow implant ends, and a beveled edge along a perimeter of the superior and inferior faces. The arcuate implant configuration and the chamfers on the superior and inferior faces at the narrow end facilitate insertion of the implant from a transforaminal approach into a symmetric position about the midline of the spine so that a single implant provides balanced support to the spinal column.Type: GrantFiled: November 13, 2002Date of Patent: December 13, 2005Assignee: Synthes (USA)Inventors: Dominique Messerli, David Gerber, David Paul, Kenneth Isamu Kobayashi
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Publication number: 20030139813Abstract: An intervertebral implant for fusing vertebrae is disclosed. The implant has a body with curved, substantially parallel posterior and anterior faces separated by two narrow implant ends, superior and inferior faces having a plurality of undulating surfaces for contacting upper and lower vertebral endplates, and at least one depression in the anterior or posterior face for engagement by an insertion tool, at least two vertical through-channels extending through the implant from the superior face to the inferior face, a chamfer on the superior and inferior surfaces at one of the narrow implant ends, and a beveled edge along a perimeter of the superior and inferior faces. The arcuate implant configuration and the chamfers on the superior and inferior faces at the narrow end facilitate insertion of the implant from a transforaminal approach into a symmetric position about the midline of the spine so that a single implant provides balanced support to the spinal column.Type: ApplicationFiled: November 13, 2002Publication date: July 24, 2003Inventors: Dominique Messerli, David Gerber, David Paul, Kenneth Isamu Kobayashi
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Patent number: RE46647Abstract: An intervertebral implant for fusing vertebrae is disclosed. The implant may have a body with curved, posterior and anterior faces separated by two narrow implant ends, superior and inferior faces having a plurality of undulating surfaces for contacting vertebral endplates, and at least one depression in the anterior or posterior face for engagement by an insertion tool. The implant may also have one or more vertical through-channels extending through the implant from the superior face to the inferior face, a chamfer on the superior and inferior surfaces at one of the narrow implant ends, and/or a beveled edge along a perimeter of the superior and inferior faces. The implant configuration facilitates transforaminal insertion of the implant into a symmetric position about the midline of the spine so that a single implant provides balanced support to the spinal column. The implant may be formed of a plurality of interconnecting bodies assembled to form a single unit.Type: GrantFiled: July 24, 2015Date of Patent: December 26, 2017Assignee: DePuy Synthes Products, Inc.Inventors: Dominique Messerli, David Gerber, David Paul, Kenneth Isamu Kobayashi