Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7169579 | Method of isolating Streptococcus sobrinus and selection medium | Masatomo Hirasawa | 2007-01-30 |
| 5710039 | Porphyromonas gingivicanis strain ATCC 55562 | Masatomo Hirasawa | 1998-01-20 |
| 5563063 | Porphyromonas crevioricanis species of microorganism | Masatomo Hirasawa | 1996-10-08 |