Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5540362 | Liquid soap supplying device | Tsutomu Azuma, Akimitsu Umemoto, Kaoru Nakano | 1996-07-30 |
| 5423461 | Liquid soap supplying device | Tsutomu Azuma, Akimitsu Umemoto, Kaoru Nakano | 1995-06-13 |
| 5392965 | Liquid soap supplying device having a middle height supplementing port | Tsutomu Azuma | 1995-02-28 |
| 5356051 | Liquid soap supplying device | Tsutomu Azuma | 1994-10-18 |