1
Hirayama Yasuhiko C O Asahi Ko, Ikata Haruko, Ojima Satoshi, Matsuzaki Hiromi: Artificial intervertebral disc.. Asahi Optical, May 31, 1989: EP0317972-A1 (47 worldwide citation)

An artificial intervertebral disc (10) comprising a pair of end bodies (1) which are provided, on their outer surfaces, with apatite layers (4) and a medical synthetic polymeric intermediate (3) which is held between the end bodies (1) through connecting members (2).


2
Ojima Satoshi C O Asahi Kogaku, Ogawa Tetsuro C O Asahi Kogaku: Porous ceramic material and production process thereof.. Asahi Optical, November 29, 1989: EP0335359-A2 (14 worldwide citation)

Porous ceramic materials which are useful as a biomaterial such as an artificial bone, a transcutaneous etc. They are produced from a green compact which is produced by compression molding of a blend of a raw ceramic material and a sublimable binder by removing said binder from the green compact thr ...


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4
Hirayama Yasuhiko C O Asahi Ko, Ikata Haruko, Ojima Satoshi C O Asahi Kogaku: Process for producing an apatite coated article.. Asahi Optical, July 19, 1989: EP0324143-A1 (3 worldwide citation)

An apatite coated article comprising a substrate having thereon an apatite layer which is formed by flame spraying apatite powder at from about 2,000 to 4,000 DEG C, and a process for producing such an apatite coated article.


5
Koshikawa Shozo C O Asahi Koga, Kitaoka Tateki C O Asahi Kogak, Nakabayashi Nobuo C O Asahi Ko, Ichitsuka Takeshi C O Asahi Ko, Ojima Satoshi C O Asahi Kogaku: Transcutaneous device.. Asahi Optical, November 23, 1989: EP0343114-A1 (3 worldwide citation)

A transcutaneous device for retaining a medical equipment in a patient's body, which has a through-hole (2) for receiving said medical equipment, which is partly embedded into a subcutaneous tissue (3) of the patient, and which is composed of a porous ceramic material, at least, in a portion thereof ...


6
Tokuhashi Yasuaki, Ojima Satoshi: Fixing screw for fixing an atlas and an axis. Asahi Optical, June 17, 1998: GB2320197-A (1 worldwide citation)

A fixing screw (1) for fixing an atlas and an axis is made of a self tapping screw which has a blunt point (15) with two flutes (14) and a thread portion. The fixing screw is inserted into a intervertebral part of an atlas and an axis using a guide wire so that the fixing screw engages the surfaces ...


7
Fujinuma Satoshi, Ojima Satoshi: Apatite packing for liquid chromatography and process for producing the same.. Asahi Optical, June 21, 1989: EP0320998-A1 (1 worldwide citation)

An apatite packing for liquid chromatography comprising particles having at least on the surface thereof chlorinated apatite, and a process for producing the same.


8
Ichitsuka Takeshi, Ojima Satoshi, Imamura Yoshiroh, Ogawa Tetsuro: Artificial trachea and production process thereof.. Asahi Optical, November 29, 1989: EP0344107-A1 (1 worldwide citation)

An artificial trachea of the two-layered ring structure in which an outer layer of the ring structure is composed of a porous ceramic material and an inner layer integrally bonded to said outer layer is composed of a dense ceramic material, and a production process thereof. The artificial trachea is ...


9
Fujinuma Satoshi, Ojima Satoshi: Apatite packing for liquid chromatography and process for producing the same.. Asahi Optical, June 21, 1989: EP0320849-A1 (1 worldwide citation)

A packing for liquid chromatography comprising apatite containing at least one of tin and lead, wherein at least the surface of the particles of the packing comprises the apatite containing at least one of tin and lead.


10
Ojima Satoshi, Kohketsu Masahiro: Anchor for fixing a screw in bone. Asahi Optical, December 11, 1996: GB2301535-A (1 worldwide citation)

The anchor 10, which is for insertion into a pre-drilled hole 21 in a bone 20 to thereby assist the fixing of a bone screw 30, includes a shank 11 made from a hardened product of a calcium phosphate compound and having a strength capable of retaining its shape during and after insertion into the hol ...