Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11403747 | Fine ratio measuring device and fine ratio measuring system | Naoshi Yamahira, Takehide Hirata, Kazuro Tsuda, Toshiki Tsuboi | 2022-08-02 |
| 11391662 | Raw material particle size distribution measuring apparatus, particle size distribution measuring method, and porosity measuring apparatus | Naoshi Yamahira, Takehide Hirata, Kazuro Tsuda, Toshiki Tsuboi | 2022-07-19 |
| 6741305 | Color display device | Hidetoshi Nakagawa | 2004-05-25 |