Hiroki Doi
14Patents
7h-index
32Co-inventors
66Inventor score
Filing activity: Apr 10, 2000 → Aug 9, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7716993B2 | Gas flow rate verification unit | Emerging Cross-Sectional Technologies | 453 | Active |
| US7353841B2 | Relative pressure control system and relative flow control system | Emerging Cross-Sectional Technologies | 70 | Expired |
| US7224591B2 | Charge pump DC/DC converter circuit | Electricity | 57 | Expired |
| US6913031B2 | Pulse shot type flow controller and pulse shot type flow controlling method | Emerging Cross-Sectional Technologies | 21 | Expired |
| US6972602B2 | Power-on reset circuit | Electricity | 21 | Expired |
| US6803807B2 | Negative voltage output charge pump circuit | Electricity | 15 | Expired |
| US7586299B2 | Power-supply semiconductor integrated circuit, power-supply semiconductor integrated circuit system, development assisting system for power-supply circuit, and program and storage medium therefor | Physics | 8 | Active |
| US8104516B2 | Gas supply unit and gas supply system | Emerging Cross-Sectional Technologies | 4 | Active |
| US6720761B1 | Hall device biasing circuit and magnetism detection circuit including the same | Physics | 4 | Expired |
| US7343926B2 | Liquid raw material supply unit for vaporizer | Emerging Cross-Sectional Technologies | 3 | Active |
| US7853416B2 | Flow rate verification failure diagnosis apparatus, flow rate verification failure diagnosis system, flow rate verification failure diagnosis method, and control program product for flow rate verification failure diagnosis | Physics | 3 | Active |
| US6400201B1 | Delay circuit and ring oscillator incorporating the same | Electricity | 1 | Expired |
| US6392444B1 | IIL reset circuit | Electricity | 0 | Expired |
| US12188566B2 | Four-way valve, valve unit, temperature control system | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.