Kazuaki Takahashi
115Patents
19h-index
121Co-inventors
89Inventor score
Filing activity: Jan 17, 1985 → Dec 7, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5903239A | Micro-patch antenna connected to circuits chips | Electricity | 257 | Expired |
| US6531991B2 | Dielectric resonator antenna for a mobile communication | Electricity | 249 | Expired |
| US5510758A | Multilayer microstrip wiring board with a semiconductor device mounted thereon via bumps | Electricity | 179 | Expired |
| US9219307B2 | Wireless communication device and method for displaying estimated direction and position of a target for wireless communication | Electricity | 129 | Active |
| US5361408A | Direct conversion receiver especially suitable for frequency shift keying (FSK) modulated signals | Electricity | 111 | Expired |
| US6095971A | Endoscope fluid controller | Human Necessities | 111 | Expired |
| US6309347A | Air and water supply system for endoscopes | Human Necessities | 99 | Expired |
| US5990768A | Millimeter waveguide and a circuit apparatus using the same | Electricity | 80 | Expired |
| US6387045B1 | Flow rate controller for an endoscope pipe | Physics | 68 | Expired |
| US6595913B2 | Cable structure in electronic endoscope | Human Necessities | 54 | Expired |
| US6791438B2 | Radio frequency module and method for manufacturing the same | Electricity | 53 | Expired |
| US6198450A | Dielectric resonator antenna for a mobile communication | Electricity | 51 | Expired |
| US6132369A | Opening/closing and flow rate controller for an endoscope pipe | Physics | 50 | Expired |
| US6558317B2 | Air and water supply system for endoscopes | Human Necessities | 50 | Expired |
| US5666595A | Image forming apparatus with locking mechanism for detachable feeder unit | Emerging Cross-Sectional Technologies | 46 | Expired |
| US7314560B2 | Cyclone separator | Performing Operations; Transporting | 39 | Expired |
| US5293408A | FSK data receiving system | Electricity | 32 | Expired |
| US5827172A | Optical system for electronic endoscopes | Physics | 29 | Expired |
| US5659274A | Strip dual mode filter in which a resonance width of a microwave is adjusted | Electricity | 20 | Expired |
| US5369383A | Strip line filter having dual mode loop resonators | Electricity | 18 | Expired |
| US5414736A | FSK data receiving system | Electricity | 17 | Expired |
| US6395332B1 | Fine copper powder and process for producing the same | Emerging Cross-Sectional Technologies | 17 | Expired |
| US9280181B2 | Electronic apparatus | Physics | 15 | Active |
| US5715532A | Frequency converter apparatus with distortion compensating circuit | Electricity | 15 | Expired |
| US7909990B2 | Filter device | Chemistry; Metallurgy | 14 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.