Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D976721 | Data logger | Takahisa Umezawa | 2023-01-31 |
| D848877 | Measurement data collector | Takahisa Umezawa | 2019-05-21 |
| 9824025 | Information processing system, information processing device, information processing program and information processing method | Atsushi Takada, Kazuo Mineno, Isamu Ooishi, Tetsuya Sano, Satoshi Hongo +3 more | 2017-11-21 |
| D797585 | Measurement data collector | Takahisa Umezawa | 2017-09-19 |
| D797586 | Measurement data collector | Takahisa Umezawa | 2017-09-19 |
| D787961 | Measurement data collector | Takahisa Umezawa | 2017-05-30 |