Eiichi Ishii
26Patents
7h-index
36Co-inventors
69Inventor score
Filing activity: Sep 2, 1975 → Feb 22, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6522329B1 | Image processing device and method for producing animated image data | Physics | 44 | Expired |
| US6118367A | Data carrier system | Electricity | 42 | Expired |
| US7142163B2 | Loop antenna device | Electricity | 19 | Expired |
| US4401885A | Planar heat generating device | Electricity | 15 | Expired |
| US4219778A | Signal processing circuit for an FM signal receiver | Electricity | 9 | Expired |
| US5789991A | FSK modulating and demodulating apparatus wherein each binary data is represented by same number of cycles of modulated signal | Electricity | 9 | Expired |
| US4616273A | Tape recording apparatus provided with a bias control device | Physics | 8 | Expired |
| US7899588B2 | Externally chargeable electric/hybrid vehicle | Emerging Cross-Sectional Technologies | 7 | Active |
| US4649327A | Electric motor control circuit | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5066876A | Circuit for converting ECL level signals to MOS level signals | Electricity | 5 | Expired |
| US6938978B2 | Container for printing fluid material | Physics | 5 | Expired |
| US4647870A | Current mirror circuit with a large current ratio | Physics | 4 | Expired |
| US4098875A | Method for thermochemical production of hydrogen from water | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4264867A | Demodulator circuit for frequency-modulated signal | Electricity | 4 | Expired |
| US4202917A | Method for manufacture of indium oxide (III) film | Chemistry; Metallurgy | 4 | Expired |
| US4800338A | Pulse count type FM demodulator | Electricity | 3 | Expired |
| US4788478A | Speed control system for DC motor | Emerging Cross-Sectional Technologies | 3 | Expired |
| US8044783B2 | Tire condition detection system and induction feed method thereof | Performing Operations; Transporting | 2 | Active |
| US5008673A | Digital to analog converter enhancing conversion precision | Electricity | 1 | Expired |
| US3996342A | Method for thermochemical production of hydrogen from water | Emerging Cross-Sectional Technologies | 1 | Expired |
| US10059284B2 | Vehicle-mounted device control system | Emerging Cross-Sectional Technologies | 1 | Active |
| US11153732B2 | Apparatus for determining arrangement of mobile shop vehicles, method for determining arrangement, and computer-readable storage medium | Physics | 1 | Active |
| US10966054B2 | Guidance information providing system, guidance information providing device, guidance information providing method, and program-stored non-transitory storage medium | Electricity | 0 | Active |
| US11067402B2 | Information system, information processing method, and program | Physics | 0 | Active |
| US7291229B2 | Method of surface treatment of titanium metal | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.