Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10379039 | NDIR gas sensor, gas analyzer, photosynthesis rate measuring apparatus, and photosynthesis rate measuring method | Yu Tanaka | 2019-08-13 |
| 9962647 | Zero gas refiner CO2 concentration measurement device and CO2 concentration measurement system | Yusuke Mizuno, Tomomichi OKA | 2018-05-08 |
| 8276469 | Stack-gas measuring apparatus and stack-gas measuring method | Atsushi Yamamoto, Takuji Oida | 2012-10-02 |
| 7928033 | Catalyst for reducing mercury, a mercury conversion unit, and an apparatus for measuring total mercury in combustion exhaust gas by using the same | Junji Kato, Fujio Koga, Koji Ishikawa | 2011-04-19 |
| 7227642 | Absorbance monitor | Takuji Oida, Masahiko Endo, Norikazu Iwata, Satoshi Inoue, Masahiko Fujiwara | 2007-06-05 |
| 6878339 | NOx-concentration measuring apparatus | Satoshi Inoue, Masahiko Fujiwara | 2005-04-12 |
| 5810928 | Method of measuring gas component concentrations of special material gases for semiconductor, a semiconductor equipment, and an apparatus for supplying special material gases for semiconductor | Hiroyuki Harada, Toshihiko Uno, Tetuo Shimizu | 1998-09-22 |
| 5780716 | Gas analyzing apparatus | Naohito Shimizu, Masahiko Fujiwara, Satoshi Inoue, Takuji Oida | 1998-07-14 |
| 5773828 | Gas analyzer | Masahiko Fujiwara, Takuji Oida, Naohito Shimizu, Aritoshi Yoneda, Toshikazu Ohnishi | 1998-06-30 |
| 5693945 | Gas analyzer | Masahiko Fujiwara, Fujio Koga, Naohito Shimizu, Toshihiko Uno, Aritoshi Yoneda | 1997-12-02 |
| 5572032 | Gas analyzer and gas-analyzing mechanism | Masahiko Fujiwara, Masahiko Ishida, Satoshi Inoue | 1996-11-05 |
| 5361030 | Leak detector for electro-magnetic induction-type conductivity meter | Hiroo Matsumoto | 1994-11-01 |
| 5341102 | Electromagnetic induction-type conductivity meter with improved calibration with auxiliary circuit | Tatsuhide Tsutsui | 1994-08-23 |
| 5252925 | Detector assembly for an electromagnetic induction-type conductivity meter | Hiroo Matsumoto | 1993-10-12 |
| 5067814 | Apparatus for measuring fine particles in liquid | Riichiro Suzuki, Yoshihiro Kubo | 1991-11-26 |