Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5180059 | Package of sanitary tampon | Sumie Shimatani | 1993-01-19 |
| 5041080 | Tampon applicator | Sumie Shimatani | 1991-08-20 |
| 4328804 | Hygienic tampon and tampon applicator | — | 1982-05-11 |