Kensaku Abe
12Patents
6h-index
15Co-inventors
63Inventor score
Filing activity: Aug 1, 1991 → Mar 23, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5323257A | Microphone and microphone system | Electricity | 172 | Expired |
| US7065219B1 | Acoustic apparatus and headphone | Electricity | 54 | Expired |
| US5781638A | Electro-acoustic transducer | Electricity | 50 | Expired |
| US5402497A | Headphone apparatus for reducing circumference noise | Physics | 29 | Expired |
| US5218641A | Wireless receiver | Electricity | 22 | Expired |
| US5668883A | Headphone apparatus including an equalizer system having an open loop characteristic with a rising slope outside the cancellation band | Electricity | 18 | Expired |
| US5159188A | Optical reception apparatus using prism having caldera-shaped concave portion | Electricity | 3 | Expired |
| US7574180B2 | Transmitter | Electricity | 2 | Active |
| US8335320B2 | Audio apparatus | Physics | 2 | Active |
| US8948413B2 | Audio apparatus | Physics | 1 | Active |
| US7786954B2 | Adjustable head-mount type display device | Physics | 1 | Active |
| US6211748A | FM modulator | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.