Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12379072 | Hydrogen gas inventory acquisition method, hydrogen gas inventory acquisition device, hydrogen gas inventory acquisition system, and hydrogen gas inventory management system | Shigeru Asai, Tadashi SEIKE, Shuuichi Suzuki, Nanako OBATA, Seiji Maeda | 2025-08-05 |
| 6642462 | Lid open/close detection device of portable electronic equipment | Nobuyuki Ninomiya, Hiroki Oba, Tatsuaki Kawase | 2003-11-04 |