Kunio Fukuda
98Patents
14h-index
78Co-inventors
87Inventor score
Filing activity: Nov 9, 1978 → Oct 24, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6930987B1 | Communication device communication method, and communication terminal device | Electricity | 141 | Expired |
| US5995844A | Wireless telephone system | Electricity | 64 | Expired |
| US4421892A | Thermoplastic polymeric material and method for the preparation thereof | Chemistry; Metallurgy | 48 | Expired |
| US6956813B2 | Radio communication system, radio base-station apparatus, mobile radio-station apparatus, radio zone assignment method, and radio communication method | Electricity | 47 | Expired |
| US4339376A | Highly heat-resistant thermoplastic resin composition having high oil-resistance | Chemistry; Metallurgy | 38 | Expired |
| US7796016B2 | Radio communication system, radio communication device, and radio communication method | Electricity | 25 | Active |
| US4369278A | Resin composition for injection molding and method for producing the same | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5737325A | Connection method of digital cordless telephone apparatus | Electricity | 21 | Expired |
| US7769867B2 | Mountable memory card and method for communicating, controlling, accessing and/or using the same | Electricity | 21 | Active |
| US5309429A | Transmitter-receiver | Electricity | 20 | Expired |
| US6169905A | Digital cordless telephone apparatus | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6115612A | Wireless telephone system having a free period allocated to switching between two frequencies | Electricity | 17 | Expired |
| US5648601A | Apparatus for analyzing air/fuel ratio sensor characteristics | Physics | 15 | Expired |
| US4386176A | Thermoplastic resin composition having high heat resistance | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6786981B2 | Ferritic stainless steel sheet for fuel tank and fuel pipe | Chemistry; Metallurgy | 14 | Expired |
| US7170878B2 | Communication device and communication method | Electricity | 13 | Expired |
| US5626426A | Self-aligning roller bearing with retainer | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US7412250B2 | Radio communication system | Electricity | 12 | Expired |
| US7356316B2 | Wireless communication system | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6553038B1 | Communication system | Electricity | 11 | Expired |
| US5889790A | Data communication method and data communication apparatus | Electricity | 11 | Expired |
| US7545832B2 | Radio communication system, transmitting apparatus, receiving apparatus, processing method and program | Electricity | 10 | Expired |
| US4446272A | Resin composition having nice color tone and high crack-resistance | Chemistry; Metallurgy | 10 | Expired |
| US5538348A | Self-aligning roller bearing with cage | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US5239689A | Transmitter/receiver apparatus with common oscillator that changes frequency between transmitting and received operations | Electricity | 10 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.