Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11796501 | Glass electrode and liquid property measurement device | Hideyuki Amamiya, Akiho SAKUMA, Jun Ohsuga | 2023-10-24 |
| D820702 | Folding carbonic acid concentration measuring instrument | Hideyuki Amamiya, Mitsunori Shinbo | 2018-06-19 |
| D820703 | Folding carbonic acid concentration measuring instrument | Hideyuki Amamiya, Mitsunori Shinbo | 2018-06-19 |
| D788623 | pH meter | Hideyuki Amamiya, Jun Oosuga | 2017-06-06 |
| 7916285 | Refractometer | Hideyuki Amamiya, Yoshinori Nakashima, Kiminori Sekiguchi, Junichi Matsumoto | 2011-03-29 |