1
Yasuhiko Hirayama, Haruko Ikata, Satoshi Ojima, Hiromi Matsuzaki: Artificial intervertebral disc. Asahi Kogaku Kogyo Kabushiki Kaisha, Sandler Greenblum & Bernstein, August 7, 1990: US04946378 (423 worldwide citation)

An artificial intervertebral disc comprises a pair of end bodies which are provided, on their outer surfaces, with apatite layers. The disc includes a medical synthetic polymeric intermediate which is held between the end bodies through connecting members.


2
Satoshi Ojima, Hiromi Matsuzaki: Vertebral connecting plate. Asahi Kogaku Kogyo Kabushiki Kaisha, Sandler Greenblum & Bernstein, September 15, 1992: US05147361 (300 worldwide citation)

A vertebral connecting plate assembly includes a vertebral connecting plate which is provided, on its opposite ends, with vertebra connecting portions to be connected to associated vertebral members or bodies. The vertebra connecting portions have threaded holes, and the set screws of the present in ...


3
Hiromi Matsuzaki, Satoshi Ojima, Masashi Nakamura: Prosthesis for spanning a space formed upon removal of an intervertebral disk. Asahi Kogaku Kogyo Kabushiki Kaisha, Greenblum & Bernstein, July 9, 1996: US05534031 (217 worldwide citation)

An artificial vertebra spacer is embedded in and bridges a space between two adjacent vertebrae which are positioned superiorly and inferiorly of a removed intervertebral disk, respectively. The artificial vertebra spacer includes a hollow cylindrical member, and a helical screw thread disposed inte ...


4
Hiromi Matsuzaki, Satoshi Ojima, Masashi Nakamura: Prosthesis for spanning a space formed upon removal of an intervertebral disk. Asahi Kogaku Kogyo Kabushiki Kaisha, Greenblum & Bernstein, July 7, 1998: US05776196 (216 worldwide citation)

An artificial vertebra spacer is embedded in and bridges a space between two adjacent vertebrae which are positioned superiorly and inferiorly of a removed intervertebral disk, respectively. The artificial vertebra spacer includes a hollow cylindrical member, and a helical screw thread disposed inte ...


5
Satoshi Ojima, Masahiro Kohketsu: Anchor and method for fixing a screw in bone. Asahi Kogaku Kogyo Kabushiki Kaisha, Greenblum & Bernstein, February 10, 1998: US05716359 (213 worldwide citation)

An anchor including a shank formed from a hardened product of a calcium phosphate compound. The anchor having a strength capable of retaining its original shape, before, during and after insertion into a pre-drilled hole of a bone, and a brittleness capable of causing its original shape to disintegr ...


6
Satoshi Ojima, Shoji Uchida: Fixing instrument for spinal fusion members. Asahi Kogaku Kogyo Kabushiki Kaisha, Greenblum & Bernstein, October 29, 1996: US05569246 (148 worldwide citation)

Two posterior spinal fusion members are secured to a plurality of vertebrae which constitute a spine. The posterior spinal fusion members are fixed to both sides of the spinous processes of the vertebrae. A fixing instrument is attached to each posterior spinal fusion member. The fixing instrument i ...


7
Yasuaki Tokuhashi, Satoshi Ojima: Guide apparatus of intervertebral implant. Asahi Kogaku Kogyo Kabushiki Kaisha, Greenblum & Bernstein, March 23, 1999: US05885300 (107 worldwide citation)

A guide apparatus of an intervertebral implant which is adapted to firmly fix an implant between adjacent corpus vertebrae includes a grip portion. A hollow inner tube is connected to the grip portion, in which an implant insertion tool can be removably inserted. A first guide projection is provided ...


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9
Moritoshi Itoman, Satoshi Ojima: Instrument for inserting an intramedullary nail in a bone. Asahi Kogaku Kogyo Kabushiki Kaisha, Greenblum & Bernstein, September 9, 1997: US05665086 (53 worldwide citation)

An intramedullary nail inserting and mounting instrument includes a base portion which can be mounted to one end of an intramedullary nail inserted in bone marrow of a pair of bone pieces of a fractured bone to be interconnected, a guide shaft portion which is integrally provided on the base portion ...


10
Satoshi Ojima: Ceramics composites. Asahi Kogaku Kogyo, Sandler Greenblum & Bernstein, November 13, 1990: US04969913 (47 worldwide citation)

Ceramic composite comprising a porous ceramic body having directly fitted thereon a dense ceramic body, the composite is produced by a process which comprises the steps of: separately producing the porous ceramic body and the dense ceramic body, inserting a projecting portion of the dense body into ...