Takeo Ichikawa
31Patents
5h-index
33Co-inventors
69Inventor score
Filing activity: Apr 9, 1984 → Nov 17, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6307837A | Method and base station for packet transfer | Electricity | 101 | Expired |
| US9882614B2 | Wireless signal transmitting method and wireless apparatus | Electricity | 8 | Active |
| US10158402B2 | Wireless signal transmitting method and wireless apparatus | Electricity | 6 | Active |
| US4573347A | Apparatus for measuring fuel injection advance angle in diesel engine | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4592327A | Apparatus for controlling fuel injection advance angle of a fuel injection pump | Emerging Cross-Sectional Technologies | 5 | Expired |
| US10491274B2 | Wireless signal transmitting method and wireless apparatus | Electricity | 5 | Active |
| US8830965B2 | Radio communication method, radio communication system, radio base station, and radio terminal station | Electricity | 4 | Active |
| US10778296B2 | Wireless signal transmitting method and wireless apparatus | Electricity | 4 | Active |
| US9923678B2 | Wireless communication system, and wireless communication method | Electricity | 4 | Active |
| US10638341B2 | Wireless environment information collection system and method | Electricity | 2 | Active |
| US11509362B2 | Wireless signal transmitting method and wireless apparatus | Electricity | 2 | Active |
| US9253762B2 | Wireless communication system and access point apparatus | Electricity | 2 | Active |
| US9998262B2 | Wireless communication system and wireless communication method | Electricity | 2 | Active |
| US11804997B2 | Wireless signal transmitting method and wireless apparatus | Electricity | 1 | Active |
| US10602367B2 | Wireless communication apparatus, wireless communication system, and wireless communication method | Electricity | 1 | Active |
| US9370013B2 | Wireless communication method, base station, wireless communication system, and communication apparatus | Electricity | 1 | Active |
| US12289772B2 | Wireless communication system and wireless communication method | Electricity | 0 | Active |
| US11153919B2 | Wireless communication system and wireless communication control method | Electricity | 0 | Active |
| US11026262B2 | Wireless communication system and wireless communication method | Electricity | 0 | Active |
| US11523439B2 | Wireless communication system and wireless communication method | Electricity | 0 | Active |
| US9094973B2 | Radio communication method, radio communication system, radio base station, and radio terminal station | Electricity | 0 | Active |
| US9276652B2 | Wireless communication system and wireless communication method | Electricity | 0 | Active |
| US10681735B2 | Wireless environment evaluation method and wireless communicaton system | Electricity | 0 | Active |
| US8897163B2 | Wireless communication method, base station, wireless communication system, and communication apparatus | Electricity | 0 | Active |
| US10477407B2 | Wireless communication system, wireless communication method, cooperation control apparatus, terminal apparatus, and licensed band base station apparatus | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.