Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5347665 | Carbonate spring bath system | Naoki Kumon, Harue Kawagoe, Shin Matsugi, Hiroshi KANO, Noriyoshi Nakaoka +4 more | 1994-09-20 |
| 5028844 | DC discharge lamp lighting device | Yoshiyasu Sakaguchi, Eiji Shiohama | 1991-07-02 |