Hirokazu Tohya
28Patents
13h-index
29Co-inventors
81Inventor score
Filing activity: Sep 12, 1984 → Oct 10, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6075211A | Multi-layered printed wiring board | Electricity | 83 | Expired |
| US5978231A | Printed wiring board with integrated coil inductor | Electricity | 76 | Expired |
| US6111479A | Laminate printed circuit board with a magnetic layer | Electricity | 62 | Expired |
| US5784285A | Waveform analyzer | Physics | 43 | Expired |
| US6002593A | Reducing electromagnetic noise radiated from a printed board | Electricity | 27 | Expired |
| US6365828B1 | Electromagnetic interference suppressing device and circuit | Electricity | 26 | Expired |
| US7868257B2 | Via transmission lines for multilayer printed circuit boards | Electricity | 20 | Active |
| US6938231B2 | Method and system for designing circuit layout | Physics | 19 | Expired |
| US7463122B2 | Compact via transmission line for printed circuit board and its designing method | Electricity | 19 | Expired |
| US5172308A | DC-DC converter with transformer having a single secondary winding | Electricity | 18 | Expired |
| US6477694B1 | Method for designing a power supply decoupling circuit | Electricity | 16 | Expired |
| US6252384A | Power-supply voltage fluctuation inhibiting circuit | Physics | 14 | Expired |
| US6873518B2 | Shielded strip line device and method of manufacture thereof | Electricity | 14 | Expired |
| US6359237B1 | Multi-layer printed board | Electricity | 12 | Expired |
| US4698517A | Power supply source control system | Physics | 12 | Expired |
| US5343378A | Power circuit | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6895354B2 | System and method for generating thermal network data and recording medium | Physics | 10 | Expired |
| US7750765B2 | Compact via transmission line for printed circuit board and design method of the same | Electricity | 9 | Active |
| US7545241B2 | Nanoparticle transmission line element and method of fabricating the same | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6721171B2 | Shielded strip line device and method of manufacture thereof | Electricity | 6 | Expired |
| US6550037B2 | Method for designing a decoupling circuit | Electricity | 5 | Expired |
| US7315226B2 | Strip line device, printed wiring board mounting member, circuit board, semiconductor package, and method of forming same | Electricity | 4 | Expired |
| US6903438B2 | Low-impedance decoupling device | Electricity | 2 | Expired |
| US7242265B2 | Element of parallel flat plate line type, a circuit board | Electricity | 2 | Expired |
| US7064623B2 | Coaxial line type components with low characteristic impedance | Electricity | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.