Koichi Itoh
15Patents
8h-index
14Co-inventors
69Inventor score
Filing activity: Aug 29, 1979 → Oct 4, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5519306A | Constant voltage circuit and a stabilized power supply unit | Emerging Cross-Sectional Technologies | 76 | Expired |
| US5157710A | Radio telephone system and method of registering an ID code therein | Electricity | 21 | Expired |
| US6330332A | Prime number generation apparatus B-smoothness judgement apparatus and computer memory product | Electricity | 14 | Expired |
| US5097500A | Radio telephone system which writes an identification code via radio link when units are electrically connected | Electricity | 12 | Expired |
| US4969205A | Radio communication system | Electricity | 11 | Expired |
| US5566498A | Mechanism for moving and holding balance-weight in lure | Human Necessities | 9 | Expired |
| US7806225B2 | Steering system motor | Electricity | 8 | Active |
| US5157367A | Electromagnetic switchgear | Electricity | 8 | Expired |
| US4654328A | Method for controlling sanitary and agricultural pests | Chemistry; Metallurgy | 6 | Expired |
| US7500537B2 | Steering apparatus for vehicle | Performing Operations; Transporting | 6 | Active |
| US4656162A | Method for controlling sanitary and agricultural pests | Human Necessities | 6 | Expired |
| US4295354A | Method for producing beam blank for large size H-beam from flat slab | Performing Operations; Transporting | 3 | Expired |
| US11214303B2 | Control device for vehicle | Performing Operations; Transporting | 2 | Active |
| US8657301B2 | Vehicle body tilting apparatus | Performing Operations; Transporting | 2 | Active |
| US11299195B2 | Vehicle steering system | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.