Manabu Kai
92Patents
11h-index
50Co-inventors
81Inventor score
Filing activity: Nov 24, 1993 → Mar 18, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7248221B2 | Radio tag antenna structure for an optical recording medium and a case for an optical recording medium with a radio tag antenna | Electricity | 134 | Expired |
| US6873864B2 | Superconductive filter module, superconductive filter assembly and heat insulating type coaxial cable | Emerging Cross-Sectional Technologies | 25 | Expired |
| US7218184B2 | Superconducting filter | Emerging Cross-Sectional Technologies | 20 | Expired |
| US7323994B2 | RFID tag | Electricity | 18 | Expired |
| US5445121A | Engine operational control unit | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US7342498B2 | Radio frequency identification (RFID) tag and manufacturing method thereof | Emerging Cross-Sectional Technologies | 14 | Expired |
| US7486192B2 | RFID tag with frequency adjusting portion | Electricity | 13 | Active |
| US6823201B2 | Superconducting microstrip filter having current density reduction parts | Emerging Cross-Sectional Technologies | 13 | Expired |
| US7446727B2 | Cross dipole antenna and tag using the same | Electricity | 13 | Active |
| US7277017B2 | RFID tag | Electricity | 12 | Expired |
| US6547021B1 | Decompression arrangement for land vehicle | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US8134505B2 | RF tag and method of manufacturing the RF tag | Emerging Cross-Sectional Technologies | 10 | Active |
| US7548167B2 | RF tag and method of manufacturing the RF tag | Electricity | 9 | Active |
| US6102576A | Bearing assembly | Emerging Cross-Sectional Technologies | 9 | Expired |
| US7058436B2 | Superconducting filter apparatus and wireless receiving amplifier having an abnormality discriminating circuit | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6859029B2 | System and method for monitoring high-frequency circuits | Electricity | 8 | Expired |
| US7659863B2 | Tag antenna | Electricity | 8 | Expired |
| US7538738B2 | Tag-use antenna and tag using the same | Electricity | 8 | Active |
| US8912960B1 | Antenna apparatus | Electricity | 7 | Active |
| US5462031A | Air-to-fuel ratio control unit for internal combustion engine | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US7598873B2 | RFID tag and manufacturing method thereof | Electricity | 6 | Active |
| US7911404B2 | RF tag and method of producing RF tag | Electricity | 6 | Active |
| US7586414B2 | Radio tag | Electricity | 6 | Active |
| US7324058B2 | Tag antenna, tag and RFID system using the same | Electricity | 6 | Expired |
| US7570225B2 | Antenna and non-contact tag | Electricity | 6 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.