Patents by Inventor Kazumasa Ueyama
Kazumasa Ueyama 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: 8048112Abstract: The fixing apparatus includes a pressure fixing device to pressure fix a rod to a circular arc rod engagement portion, and small protruding portions that bite into the rod and have an acute angle in both end sides of the rod engagement portion outside of the pressure fixing device. A recess surface of the circular arc rod engagement portion between the small protruding portions is formed as a rough surface.Type: GrantFiled: September 11, 2003Date of Patent: November 1, 2011Assignee: Showa IKA Kohgyo Co., Ltd.Inventors: Nobumasa Suzuki, Yutaka Nohara, Shinnosuke Nakahara, Shigenobu Sato, Kazumasa Ueyama, Kazuhiro Hasegawa, Kazuya Oribe, Hiroshi Takamido
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Patent number: 7572278Abstract: A rod connector is provided with a rod supporting portion in a part of a connector main body supported to a leading end of a shank portion. A rod pressing portion is provided in a side opposing to the rod supporting portion, and a rod is clamped and fixed by the rod pressing portion and the rod supporting portion. At this time, small convex portions provided in the rod supporting portion eat into the rod.Type: GrantFiled: September 11, 2003Date of Patent: August 11, 2009Assignee: Showa Ika Kohgyo Co., Ltd.Inventors: Nobumasa Suzuki, Yutaka Nohara, Shinnosuke Nakahara, Shigenobu Sato, Kazumasa Ueyama, Kazuhiro Hasegawa, Kazuya Oribe, Hiroshi Takamido
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Patent number: 7569070Abstract: A rod connector is provided with a rod supporting portion in a part of a connector main body supported to a leading end of a shank portion. A rod pressing portion is provided in a side opposing to the rod supporting portion, and a rod is clamped and fixed by the rod pressing portion and the rod supporting portion. At this time, small convex portions provided in the rod supporting portion eat into the rod.Type: GrantFiled: January 6, 2006Date of Patent: August 4, 2009Assignee: Showa Ika Kohgyo Co., Ltd.Inventors: Nobumasa Suzuki, Yutaka Nohara, Shinnosuke Nakahara, Shigenobu Sato, Kazumasa Ueyama, Kazuhiro Hasegawa, Kazuya Oribe, Hiroshi Takamido
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Publication number: 20060129150Abstract: A rod connector is provided with a rod supporting portion in a part of a connector main body supported to a leading end of a shank portion. A rod pressing portion is provided in a side opposing to the rod supporting portion, and a rod is clamped and fixed by the rod pressing portion and the rod supporting portion. At this time, small convex portions provided in the rod supporting portion eat into the rod.Type: ApplicationFiled: January 6, 2006Publication date: June 15, 2006Applicant: Showa Ika Kohgyo Co., Ltd.Inventors: Nobumasa Suzuki, Yutaka Nohara, Shinnosuke Nakahara, Shigenobu Sato, Kazumasa Ueyama, Kazuhiro Hasegawa, Kazuya Oribe, Hiroshi Takamido
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Patent number: 6958065Abstract: A connector is provided with a first fastening member 55 having an engagement hole 53 freely engaging with a head portion of an implant 41 screwed and inserted to a body of vertebra and a fastening groove 57, a second fastening member 63 having an insertion hole 61 freely inserting a rod 49 therethrough and a fastening groove 65, and a fastening device 69 freely penetrating a through hole 59 crossing to the fastening groove 57 in the first fastening member 55 and a through hole 67 crossing to the fastening groove 65 in the second fastening member 63, and an angle adjusting and engaging portion is provided on connecting surfaces 55a and 63a between the first fastening member 55 and the second fastening member 63.Type: GrantFiled: March 7, 2003Date of Patent: October 25, 2005Assignee: Showa Ika Kohgyo Co., Ltd.Inventors: Kazumasa Ueyama, Akio Sannohe, Naoki Echigoya, Kazuya Oribe, Noriyuki Ina
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Patent number: 6832999Abstract: A connector is provided with a first fastening member 55 having an engagement hole 53 freely engaging with a head portion of an implant 41 screwed and inserted to a body of vertebra and a fastening groove 57, a second fastening member 63 having an insertion hole 61 freely inserting a rod 49 therethrough and a fastening groove 65, and a fastening device 69 freely penetrating a through hole 59 crossing to the fastening groove 57 in the first fastening member 55 and a through hole 67 crossing to the fastening groove 65 in the second fastening member 63, and an angle adjusting and engaging portion is provided on connecting surfaces 55a and 63a between the first fastening member 55 and the second fastening member 63.Type: GrantFiled: March 7, 2003Date of Patent: December 21, 2004Assignee: Showa Ika Kohgyo Co., Ltd.Inventors: Kazumasa Ueyama, Akio Sannohe, Naoki Echigoya, Kazuya Oribe, Noriyuki Ina
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Publication number: 20040133202Abstract: A rod connector 1 is provided with a rod supporting portion 9 in a part of a connector main body 11 supported to a leading end of a shank portion 3. A rod pressing portion 15 is provided in a side opposing to the rod supporting portion 9, and a rod 7 is clamped and fixed by the rod pressing portion 15 and the rod supporting portion 9. At this time, small convex portions 25 provided in the rod supporting portion eat into the rod 7.Type: ApplicationFiled: September 11, 2003Publication date: July 8, 2004Applicant: SHOWA IKA KOHGYO CO., LTD.Inventors: Nobumasa Suzuki, Yutaka Nohara, Shinnosuke Nakahara, Shigenobu Sato, Kazumasa Ueyama, Kazuhiro Hasegawa, Kazuya Oribe, Hiroshi Takamido
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Publication number: 20040127902Abstract: A vertebra body plate 1 is comprised of a main body portion 3 having an approximately point symmetric shape around a point O in which a first diagonal line M connecting a pair of acute angle portions A, C′ having acute angles opposing to each other, crosses a second diagonal line N connecting a pair of obtuse angle portions B, D′ having obtuse angles opposing to each other, a pair of screw insertion holes 9 provided on or near the first diagonal line M of the main body portion 3, and two spike 7 provided on each of the first diagonal line M and the second diagonal line N.Type: ApplicationFiled: September 11, 2003Publication date: July 1, 2004Applicant: Showa Ika Kohgyo Co., Ltd.Inventors: Nobumasa Suzuki, Yutaka Nohara, Shinnosuke Nakahara, Shigenobu Sato, Kazumasa Ueyama, Kazuhiro Hasegawa, Kazuya Oribe, Hiroshi Takamido
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Publication number: 20040122425Abstract: The fixing apparatus 1 is comprised of a pressure fixing device 13 for freely pressure fixing the rod portion 7R to a circular arc rod engagement portion 9 freely engaging with the rod portion 7R, and small protruding portions 15, 15 eating into the rod portion 7R and having an acute angle in both end sides of the rod engagement portion 9 outside the pressure fixing device 13. Further, a recess surface 9A of the rod engagement portion 9 between the small protruding portions 15, 15 provided in the rod engagement portion 9 is formed as a rough surface.Type: ApplicationFiled: September 11, 2003Publication date: June 24, 2004Applicant: Showa Ika Kohgyo Co., Ltd.Inventors: Nobumasa Suzuki, Yutaka Nohara, Shinnosuke Nakahara, Shigenobu Sato, Kazumasa Ueyama, Kazuhiro Hasegawa, Kazuya Oribe, Hiroshi Takamido
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Publication number: 20030176864Abstract: A connector is provided with a first fastening member 55 having an engagement hole 53 freely engaging with a head portion of an implant 41 screwed and inserted to a body of vertebra and a fastening groove 57, a second fastening member 63 having an insertion hole 61 freely inserting a rod 49 therethrough and a fastening groove 65, and a fastening device 69 freely penetrating a through hole 59 crossing to the fastening groove 57 in the first fastening member 55 and a through hole 67 crossing to the fastening groove 65 in the second fastening member 63, and an angle adjusting and engaging portion is provided on connecting surfaces 55a and 63a between the first fastening member 55 and the second fastening member 63.Type: ApplicationFiled: March 7, 2003Publication date: September 18, 2003Applicant: SHOWA IKA KOHGYO CO., LTD.Inventors: Kazumasa Ueyama, Akio Sannohe, Naoki Echigoya, Kazuya Oribe, Noriyuki Ina
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Publication number: 20030176863Abstract: A connector is provided with a first fastening member 55 having an engagement hole 53 freely engaging with a head portion of an implant 41 screwed and inserted to a body of vertebra and a fastening groove 57, a second fastening member 63 having an insertion hole 61 freely inserting a rod 49 therethrough and a fastening groove 65, and a fastening device 69 freely penetrating a through hole 59 crossing to the fastening groove 57 in the first fastening member 55 and a through hole 67 crossing to the fastening groove 65 in the second fastening member 63, and an angle adjusting and engaging portion is provided on connecting surfaces 55a and 63a between the first fastening member 55 and the second fastening member 63.Type: ApplicationFiled: March 7, 2003Publication date: September 18, 2003Applicant: Showa Ika Kohgyo Co., Ltd.Inventors: Kazumasa Ueyama, Akio Sannohe, Naoki Echigoya, Kazuya Oribe, Noriyuki Ina
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Patent number: 6620164Abstract: Connector connecting an implant to a bone connecting rod. The connector includes a first fastening member provided with an engagement hole freely engaging with a head portion of the implant anchored to the vertebral bodies and a fastening groove. A second fastening member is provided with an insertion hole freely inserting the rod therethrough and a fastening groove. A through hole penetrating in a direction crossing to the fastening groove in the first fastening member and a through hole penetrating in a direction crossing to the fastening groove in the second fastening member are provided with fastening devices.Type: GrantFiled: September 20, 2001Date of Patent: September 16, 2003Assignee: Showa Ika Kohgyo Co., Ltd.Inventors: Kazumasa Ueyama, Akio Sannohe, Naoki Echigoya, Kazuya Oribe, Noriyuki Ina
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Publication number: 20020042614Abstract: A connector is provided with a first fastening member 55 having an engagement hole 53 freely engaging with a head portion of an implant 41 screwed and inserted to a body of vertebra and a fastening groove 57, a second fastening member 63 having an insertion hole 61 freely inserting a rod 49 there through and a fastening groove 65, and a fastening device 69 freely penetrating a through hole 59 crossing to the fastening groove 57 in the first fastening member 55 and a through hole 67 crossing to the fastening groove 65 in the second fastening member 63, and an angle adjusting and engaging portion is provided on connecting surfaces 55a and 63a between the first fastening member 55 and the second fastening member 63.Type: ApplicationFiled: September 20, 2001Publication date: April 11, 2002Applicant: SHOWA IKA KOHGYO CO., LTDInventors: Kazumasa Ueyama, Akio Sannohe, Naoki Echigoya, Kazuya Oribe, Noriyuki Ina