Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6306297 | Packing material for liquid chromatography and process for producing the same | Tetsuro Ogawa, Masaya Sumita, Akihiko Yokoo, Katsumi Kawamura | 2001-10-23 |
| 5651882 | Packing material for liquid chromatography and process for producing the same | Tetsuro Ogawa, Katsumi Kawamura, Akihiko Yokoo | 1997-07-29 |
| 5651884 | Packing material for liquid chromatography | Tetsuro Ogawa, Katsumi Kawamura, Masaya Sumita, Akihiko Yokoo | 1997-07-29 |
| RE35340 | Packing material for liquid chromatography | Tetsuro Ogawa, Katsumi Kawamura, Masaya Sumita, Akihiko Yokoo | 1996-10-01 |
| RE35267 | Separating agent, separator and method of separating cell or virus | Sumiaki Tsuru, Akihiko Yokoo, Tsuneo Hiraide | 1996-06-11 |
| 5441635 | Packing material for liquid chromatography | Tetsuro Ogawa, Masaya Sumita | 1995-08-15 |
| 5240659 | Process for producing shaped article of oriented calcium phosphate type compound | Tetsuro Ogawa, Masaya Sumita, Akihiko Yokoo | 1993-08-31 |
| RE34037 | Support for biomedical implant device | Masahide Inoue, Yasuhiko Hirayama, Shozo Koshikawa, Tateki Kitaoka, Nobuo Nakabayashi +2 more | 1992-08-18 |
| 5134009 | Shaped article of oriented calcium phosphate type compounds, sinter thereof and processes for producing same | Tetsuro Ogawa, Masaya Sumita, Akihiko Yokoo | 1992-07-28 |
| 5089195 | Method for producing calcium phosphate-based material | Yasuhiko Hirayama, Tetsuro Ogawa | 1992-02-18 |
| 5085781 | Separating agent, separator and method of separating cell or virus | Sumiaki Tsuru, Akihiko Yokoo, Tsuneo Hiraide | 1992-02-04 |
| 5064436 | Bone prosthetic material | Makoto Ogiso, Tetsuro Ogawa, Masahide Inoue | 1991-11-12 |
| 5055307 | Slow release drug delivery granules and process for production thereof | Sumiaki Tsuru, Masashi Tsugita, Ken Takasaki, Akihiko Yokoo | 1991-10-08 |
| 5039408 | Packing material for liquid chromatography | Tetsuro Ogawa, Masaya Sumita, Akihiko Yokoo, Katsumi Kawamura | 1991-08-13 |
| 4957674 | Method for producing calcium phosphate-based material | Yasuhiko Hirayama, Tetsuro Ogawa | 1990-09-18 |
| 4798585 | Support for biomedical implant device | Masahide Inoue, Yasuhiko Hirayama, Shozo Koshikawa, Tateki Kitaoka, Nobuo Nakabayashi +2 more | 1989-01-17 |