Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6886396 | Method for easily measuring nitrogen oxide concentration of an engine vehicle emission | Tokihiro Tsukamoto, Koichi Matsumoto | 2005-05-03 |
| 6877367 | System and method for measuring brake mean effective pressure in a running vehicle | Tokihiro Tsukamoto, Koichi Matsumoto, Shigeo Nakamura | 2005-04-12 |
| 6619107 | Simple method of measuring nitrogen oxide in running vehicles | Tokihiro Tsukamoto | 2003-09-16 |
| 6571616 | Easy method for measuring brake mean effective pressure in a running vehicle | Tokihiro Tsukamoto, Koichi Matsumoto, Shigeo Nakamura | 2003-06-03 |
| 5255072 | Apparatus for analyzing fluid by multi-fluid modulation mode | Hajime Mikasa, Ichiro Asano, Shuichi Ishimoto, Isao Fujita, Norio Kada +5 more | 1993-10-19 |
| 5102806 | Method for analyzing fluid by multi-fluid modulation mode | Hajime Mikasa, Ichiro Asano, Shuichi Ishimoto, Isao Fujita, Norio Kada +5 more | 1992-04-07 |
| 4939395 | Temperature compensating circuit | Ichiro Asano, Satoshi Inoue | 1990-07-03 |
| 4766304 | Sensitivity-calibration circuit for use in an absorption analyzer | Ichiro Asano, Kennosuke Kojima | 1988-08-23 |
| 4726216 | Sensitivity-calibration circuit for an HC analyzer | Hiroji Kohsaka, Yoshiyuki Nakajima, Kennosuke Kojima | 1988-02-23 |