Ohtsu; Yutaka
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ohtsu; Yutaka.The latest application filed is for "column packing material and method for production thereof".
- Ohtsu; Yutaka - Yokohama JP
- Ohtsu, Yutaka - Kanagawa JP
- Ohtsu; Yutaka - Yokosuka JP
| Patent | Date |
|---|---|
| Column packing material and method for producing the same Grant 7,329,386 - Kobayashi , et al. February 12, 2 | 2008-02-12 |
| Column packing material and method for production thereof App 20040043493 - Kobayashi, Atsushi ; et al. | 2004-03-04 |
| Polymer packing material for liquid chromatography and a producing method thereof Grant 6,482,867 - Kimura , et al. November 19, 2 | 2002-11-19 |
| Method for analyzing a sample by using a liquid chromatograph Grant 6,063,283 - Shirota , et al. May 16, 2 | 2000-05-16 |
| Packing material for liquid chromatography Grant 5,203,991 - Kutsuna , et al. April 20, 1 | 1993-04-20 |
| Packing material for liquid chromatography Grant 5,145,578 - Tokubo , et al. September 8, 1 | 1992-09-08 |
| Column packing material with both hydrophobic and hydrophilic groups and process for production thereof Grant 5,135,649 - Kanda , et al. August 4, 1 | 1992-08-04 |
| Modified powder or particulate material Grant 4,882,225 - Fukui , et al. November 21, 1 | 1989-11-21 |
| Modified powder Grant 4,818,614 - Fukui , et al. April 4, 1 | 1989-04-04 |
| Cosmetic compositions containing modified powder or particulate material Grant 4,801,445 - Fukui , et al. January 31, 1 | 1989-01-31 |
| Pocket sized television Grant D297,536 - Ohtsu September 6, 1 | 1988-09-06 |
| Packing material for liquid chromatography Grant 4,743,377 - Ohtsu , et al. May 10, 1 | 1988-05-10 |
| Portable television set Grant D288,321 - Ohtsu February 17, 1 | 1987-02-17 |
| Portable television set Grant D285,443 - Ohtsu September 2, 1 | 1986-09-02 |
| Portable television set Grant D284,473 - Ohtsu July 1, 1 | 1986-07-01 |
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