Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8450295 | Ophthalmic composition containing xanthan gum and amino acid | Koji Doi | 2013-05-28 |
| 7939511 | Ophthalmic composition containing xanthan gum and amino acid | Koji Doi | 2011-05-10 |
| 7875271 | Ophthalmic composition comprising xanthan gum and glucose | Koji Doi | 2011-01-25 |
| 6432893 | Method for removal of protein from contact lenses | Koji Doi, Takuya Nakajima, Hisayuki Nakayama | 2002-08-13 |
| 5908865 | Chlorhexidine gluconate-containing, stabilized aqueous pharmaceutical preparations | Koji Doi | 1999-06-01 |