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Masahide Inoue, Takeshi Ichitsuka, Yasuhiko Hirayama, Shozo Koshikawa, Tateki Kitaoka, Nobuo Nakabayashi, Tatsumichi Takeda, Osamu Minoo: Support for biomedical implant device. Asahi Kogaku Kogyo Kabushiki Kaisha, Sughrue Mion Zinn Macpeak and Seas, January 17, 1989: US04798585 (60 worldwide citation)

A support for a biomedical implant device in which the support has a surface layer composed of a biocompatible calcium phosphate material such as sintered hydroxyapatite with a porosity of 50-60% and pore size of 0.5-500 micrometers. Preferably, the surface layer is formed with projections or recess ...


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Sumiaki Tsuru, Masashi Tsugita, Ken Takasaki, Akihiko Yokoo, Takeshi Ichitsuka: Slow release drug delivery granules and process for production thereof. Asahi Kagaku Kogyo Kabushiki Kaisha, October 8, 1991: US05055307 (36 worldwide citation)

Slow release drug delviery granules comprising porous granules of a calcium phosphate compound having an atomic ratio of Ca to P of 1.3 to 1.8, a porosity of 0.1 to 70%, a specific surface area of 0.1 to 50 m.sup.2 /g and a pore size of 1 nm to 10 .mu.m, fired at a temperature of 200.degree. to 1400 ...


3
Takeshi Ichitsuka, Tetsuro Ogawa, Masaya Sumita, Akihiko Yokoo: Shaped article of oriented calcium phosphate type compounds, sinter thereof and processes for producing same. Asahi Kogaku Kogyo, Sughrue Mion Zinn Macpeak & Seas, July 28, 1992: US05134009 (34 worldwide citation)

An oriented shaped article of a calcium phosphate type compound is disclosed, in which at least two crystallographic axes of the primary particles of which the shaped article is composed each is oriented in one direction, respectively, in at least the surface of said article. A sinter of the oriente ...


4
Makoto Ogiso, Tetsuro Ogawa, Takeshi Ichitsuka, Masahide Inoue: Bone prosthetic material. Asahi Kogaku Kogyo, Sughrue Mion Zinn Macpeak & Seas, November 12, 1991: US05064436 (24 worldwide citation)

A bone prosthetic material composed of calcium phosphate group granules which have open cells with an average pore size of 0.01-(10 .mu.m).sup.2 over a surface density of at least one per 10 .mu.m.sup.2. The prosthetic material is prepared by mixing organic inflammable particles with a calcium based ...


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Sumiaki Tsuru, Akihiko Yokoo, Takeshi Ichitsuka, Tsuneo Hiraide: Separating agent, separator and method of separating cell or virus. Asahi Kogaku Kogyo Kabushiki Kaisha, Sandler Greenblum & Bernstein, February 4, 1992: US05085781 (23 worldwide citation)

A separating agent which includes a polyvinyl acetal resin having open cell structure and an average pore size of from about 10 to about 1000 micrometers; and, porous calcium phosphate granules having open cell structure, and also having two distributions of pore size wherein one distribution has mi ...


6
Takeshi Ichitsuka, Tetsuro Ogawa, Katsumi Kawamura, Masaya Sumita, Akihiko Yokoo: Packing material for liquid chromatography. Asahi Kogaku Kogyo Kabushiki Kaisha, Sughrue Mion Zinn Macpeak & Seas, July 29, 1997: US05651884 (15 worldwide citation)

Column packing materials useful in applications such as liquid chromatography, as well as a process for producing such a packing material are described. A first aspect of the invention concerns a column packing material composed of a spherical substrate having a coating of a calcium phosphate based ...


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Takeshi Ichitsuka, Tetsuro Ogawa, Masaya Sumita: Packing material for liquid chromatography. Asahi Kogaku Kogyo Kabushiki Kaisha, Sughrue Mion Zinn Macpeak & Seas, August 15, 1995: US05441635 (15 worldwide citation)

Column packing materials useful in applications such as liquid chromatography, as well as a process for producing such a packing material are described. A first aspect of the invention concerns a column packing material composed of a spherical substrate having a coating of a calcium phosphate based ...


8
Takeshi Ichitsuka, Tetsuro Ogawa, Masaya Sumita, Akihiko Yokoo, Katsumi Kawamura: Packing material for liquid chromatography. Asahi Kogaku Kogyo, Sughrue Mion Zinn Macpeak & Seas, August 13, 1991: US05039408 (14 worldwide citation)

Column packing materials useful in applications such as liquid chromatography, as well as a process for producing such a packing material are described. A first aspect of the invention concerns a column packing material composed of a spherical substrate having a coating of a calcium phosphate based ...


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Takeshi Ichitsuka, Tetsuro Ogawa, Masaya Sumita, Akihiko Yokoo, Katsumi Kawamura: Packing material for liquid chromatography and process for producing the same. Asahi Kogaku Kogyo Kabushiki Kaisha, Sughrue Mion Zinn Macpeak & Seas PLLC, October 23, 2001: US06306297 (7 worldwide citation)

Column packing materials useful in applications such as liquid chromatography, as well as a process for producing such a packing material are described. A first aspect of the invention concerns a column packing material composed of a spherical substrate having a coating of a calcium phosphate based ...



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