Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8396675 | Method and apparatus for determining discharge flow rate and use of the apparatus | — | 2013-03-12 |
| 5209284 | Reduced pressure heat treating device | Masakatsu Okamoto, Hideaki Yumoto | 1993-05-11 |
| 4898022 | Steam trap operation detector | Hideaki Yumoto, Mamoru Nagase, Yoshito Yamada, Yoshiyasu Fujiwara, Masakatsu Okamoto +1 more | 1990-02-06 |
| 4888978 | Instrument to measure leakage of steam from a steam trap | Hideaki Yumoto, Yoshito Yamada | 1989-12-26 |
| 4788849 | Steam trap operation monitoring device | Takeshi Yokoyama | 1988-12-06 |
| 4727750 | Steam leakage measuring device | — | 1988-03-01 |