Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12253493 | Gas sensor with indirect pass-through ventilation | Daisuke SEO | 2025-03-18 |
| 11525812 | Gas concentration measuring device and method of calibrating same | Osamu Sakaguchi, Isao Ito, Katsuyuki Matsubayashi | 2022-12-13 |
| 11499939 | Ultrasonic wave transmitter, propagation time measurement device, gas concentration measurement device, propagation time measurement program, and propagation time measurement method | Kouichi Tsujiya, Yoshifumi Shinfuku | 2022-11-15 |
| 11054397 | Propagation time measurement machine, gas concentration measurement device, propagation time measurement program, and propagation time measurement method | Kouichi Tsujiya, Yoshifumi Shinfuku | 2021-07-06 |
| 7161085 | Thin flat twisted-pair gap cable and gap navigator unit | Keiichiro Sugimoto, Yasuhiro Hatakeyama, Kouji Fukushima, Masahiro Izaki, Noriaki Tanaka | 2007-01-09 |