Hideyuki Amamiya
22Patents
5h-index
20Co-inventors
65Inventor score
Filing activity: Oct 28, 2003 → Nov 5, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7492447B2 | Refractometer | Physics | 9 | Expired |
| US7369221B2 | Portable refractometer | Physics | 7 | Expired |
| US7916285B2 | Refractometer | Physics | 7 | Active |
| USD584648S1 | Refractometer | General | 7 | Expired |
| USD922221S1 | Sample temperature controller | General | 7 | Active |
| USD906143S1 | Salinometer, saccharimeter and pH meter | General | 5 | Active |
| USD788623S1 | pH meter | General | 4 | Active |
| USD796362S1 | Viscometer | General | 3 | Active |
| US11249041B2 | Oil deterioration detector, sensor cover of oil deterioration detector, and method of measuring degree of oil deterioration | Physics | 3 | Active |
| USD820703S1 | Folding carbonic acid concentration measuring instrument | General | 2 | Active |
| USD554549S1 | Refractometer | General | 1 | Expired |
| US10801938B2 | Viscometer using reaction torque measurement based on rotational phase difference | Physics | 1 | Active |
| USD749969S1 | Polarimeter and refractometer | General | 1 | Active |
| USD750517S1 | Part of a polarimeter and refractometer | General | 0 | Active |
| USD820702S1 | Folding carbonic acid concentration measuring instrument | General | 0 | Active |
| US9709489B2 | Device for measuring polarization degree and refractive index | Physics | 0 | Active |
| US11474015B2 | Viscosity measurement unit and viscometer | Physics | 0 | Active |
| US11099127B2 | Nondestructive measurement apparatus | Physics | 0 | Active |
| US10429332B2 | Oil degradation meter and method for evaluating oil degradation | Physics | 0 | Active |
| US11199518B2 | Oil deterioration detector, sensor cover of oil deterioration detector, and method of measuring degree of oil deterioration | General | 0 | Revoked |
| US11796501B2 | Glass electrode and liquid property measurement device | Physics | 0 | Active |
| USD851523S1 | Viscometer | General | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.