Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7662636 | Ozone gas sensing element, detection apparatus, and measurement method | Yasuko Maruo, Shigeo Ogawa, Tohru Tanaka | 2010-02-16 |
| 7615192 | Ozone gas measurement apparatus | Yasuko Maruo, Shigeo Ogawa, Tohru Tanaka | 2009-11-10 |
| 7364700 | Ozone gas sensing element, detection apparatus, and measurement method | Yasuko Maruo, Shigeo Ogawa, Tohru Tanaka | 2008-04-29 |
| 6545739 | Tunable wavelength filter using nano-sized droplets of liquid crystal dispersed in a polymer | Shiro Matsumoto, Katsuhiko Hirabayashi, Yasuyuki Sugiyama, Takayoshi Hayashi | 2003-04-08 |