Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5321863 | Bath towel for babies | Sumiko Yamaguchi, Keiko Hirasawa | 1994-06-21 |
| 5292042 | Waist bag | Sumiko Yamaguchi, Keiko Hirasawa | 1994-03-08 |
| D334659 | Infant carrier | Naomi Hirata, Keiko Hirasawa | 1993-04-13 |
| 5195666 | Waist bag | Sumiko Yamaguchi, Keiko Hirasawa | 1993-03-23 |