Tetsuya Hirota
10Patents
7h-index
20Co-inventors
66Inventor score
Filing activity: Mar 15, 1977 → Sep 25, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4332623A | Adsorption separation method and apparatus thereof | Emerging Cross-Sectional Technologies | 44 | Expired |
| US4602212A | Method and apparatus including a flux leakage and eddy current sensor for detecting surface flaws in metal products | Physics | 34 | Expired |
| US4405455A | Adsorption separation apparatus | Performing Operations; Transporting | 22 | Expired |
| US4217548A | Flaw detector for pipe employing magnets located outside the pipe and detector mounted inside and movable along the pipe with the magnets | Physics | 10 | Expired |
| US4247818A | Automatic sensitivity adjustment apparatus for calibration of a non-destructive inspection instrument | Physics | 9 | Expired |
| US4127813A | Method for balancing the sensitivity of two channels in a differential detection apparatus | Physics | 8 | Expired |
| US4258318A | Flaw detector for pipe employing magnets located outside the pipe and detector mounted inside and movable along the pipe with the magnets | Physics | 7 | Expired |
| US5882522A | Paint recovering method and collecting material | Emerging Cross-Sectional Technologies | 5 | Expired |
| US11614574B2 | Coloring composition for solid-state imaging element | Electricity | 0 | Active |
| US4106993A | Method for preservation of aqueous glucose isomerase solution | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.