Keiichi Ishida
28Patents
11h-index
63Co-inventors
78Inventor score
Filing activity: Oct 21, 1981 → Sep 6, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4420564A | Blood sugar analyzer having fixed enzyme membrane sensor | Emerging Cross-Sectional Technologies | 473 | Expired |
| US4407959A | Blood sugar analyzing apparatus | Emerging Cross-Sectional Technologies | 315 | Expired |
| US4483924A | System for controlling a printer in a blood sugar analyzer | Emerging Cross-Sectional Technologies | 256 | Expired |
| US4678232A | Headrest assembly for vehicles | Performing Operations; Transporting | 47 | Expired |
| US4830434A | Adjustable head rest device for vehicle | Performing Operations; Transporting | 37 | Expired |
| US4436812A | Process of calibrating a blood sugar analyzing apparatus | Emerging Cross-Sectional Technologies | 35 | Expired |
| US4807931A | Air-controlled lumbar support device | Emerging Cross-Sectional Technologies | 26 | Expired |
| US6822711B1 | Liquid crystal display apparatus using polarizing element transmitting one of two polarizing components crossing at right angles and reflecting the other component | Physics | 26 | Expired |
| US4690456A | Air bag assembly | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4534506A | Thermopneumatic mechanism for opening and closing a radiator grille | Emerging Cross-Sectional Technologies | 16 | Expired |
| US7817864B2 | Coding apparatus and decoding apparatus | Electricity | 14 | Active |
| US7839312B2 | Coder | Electricity | 9 | Active |
| US7813152B2 | Power converter | Electricity | 5 | Active |
| US5289322A | Data rearrangement processing apparatus for digital video signal recording apparatus | Electricity | 5 | Expired |
| US5331639A | Method and apparatus for frame phase conversion of signal having frame structure | Electricity | 5 | Expired |
| US5510897A | Digital video signal recording apparatus and method | Electricity | 4 | Expired |
| US5991109A | Magnetic recording and reproducing apparatus with signal delay and selection | Physics | 4 | Expired |
| US6690879B2 | Magnetic recording and reproducing apparatus of helical scan type | Electricity | 2 | Expired |
| US6233281A | Video signal processing apparatus, and video signal processing method | Electricity | 2 | Expired |
| US11276519B2 | Coil component | Electricity | 2 | Active |
| US11657952B2 | Coil component | Electricity | 1 | Active |
| US11769614B2 | Coil component and method for producing magnetic powder-containing resin material used therefor | Electricity | 0 | Active |
| US12136512B2 | Coil component and method of manufacturing the same | Electricity | 0 | Active |
| US12315661B2 | Magnetic compact and inductor | Emerging Cross-Sectional Technologies | 0 | Active |
| US12191067B2 | Coil component | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.