Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5503627 | Ampule for needleless injection | Takaaki Nakagawa, Carl E. Wilcox | 1996-04-02 |
| 5312335 | Needleless hypodermic injection device | Takaaki Nakagawa, Carl E. Wilcox | 1994-05-17 |
| 5064413 | Needleless hypodermic injection device | Takaaki Nakagawa, Carl E. Wilcox | 1991-11-12 |