Yoshinori Matsunaga
14Patents
9h-index
37Co-inventors
72Inventor score
Filing activity: Nov 18, 1985 → Jul 25, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4670701A | Rechargeable cordless vacuum cleaner apparatus | Emerging Cross-Sectional Technologies | 70 | Expired |
| US7234574B2 | Damping coefficient switching-type hydraulic damper | Fixed Constructions | 46 | Active |
| US5311709A | Variable damping device for seismic response controlled structure | Fixed Constructions | 44 | Expired |
| US5347771A | High damping device for seismic response controlled structure | Fixed Constructions | 32 | Expired |
| US5950444A | Electronic apparatus | Electricity | 27 | Expired |
| US5841035A | Vortex flowmeter | Physics | 17 | Expired |
| US6198367A | High-frequency circuit on a single-crystal dielectric substrate with a through hole in a different substrate | Electricity | 13 | Expired |
| US6633541B1 | Ascending transmission speed controlling method and communication system in ATM-PON system | Electricity | 12 | Expired |
| US4773274A | Electromagnetic flow meter | Physics | 11 | Expired |
| US5885939A | Process for forming a-axis-on-c-axis double-layer oxide superconductor films | Emerging Cross-Sectional Technologies | 6 | Expired |
| US7143875B2 | Attenuation coefficient switching type hydraulic damper | Fixed Constructions | 4 | Expired |
| US5108985A | Bi-Pb-Sr-Ca-Cu oxide superconductor containing alkali metal and process for preparation thereof | Emerging Cross-Sectional Technologies | 4 | Expired |
| US6074768A | Process for forming the oxide superconductor thin film and laminate of the oxide superconductor thin films | Emerging Cross-Sectional Technologies | 3 | Expired |
| US8118886B2 | Fuel mixture, fuel reliquefying system, fuel cartridge using the same, and method of extracting fuel; for fuel cells | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.