Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5121511 | Shower device | Jyunichi Sakamoto, Tsukasa Harada | 1992-06-16 |
| 5118072 | Solenoid valve | Jyunichi Sakamoto, Tsukasa Harada | 1992-06-02 |
| 5035010 | Reciprocating shower device for human usage when showering | Jun Sakamoto, Kouichi Yoshida | 1991-07-30 |