Hiroaki Tsutsui
22Patents
7h-index
27Co-inventors
69Inventor score
Filing activity: Sep 26, 1989 → Jun 1, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5918200A | State estimating apparatus | Physics | 77 | Expired |
| US7314584B2 | Polymer gel composition and optical device using the same | Physics | 29 | Expired |
| US6785035B2 | Optical element, optical element composition and method for controlling stimuli-responsive polymer gel | Physics | 13 | Expired |
| US5925901A | Field effect transistor with plated heat sink on a fet chip | Electricity | 12 | Expired |
| US4985645A | BiCMOS logic circuit having a rapid output voltage falling-down property | Electricity | 10 | Expired |
| US7437267B2 | Sewage inflow amount predicting device and method, and server device | Fixed Constructions | 9 | Expired |
| US5157632A | High-speed low-power consumption sense amplifier circuit incorporated in semiconductor memory device | Physics | 9 | Expired |
| US7435479B2 | Light-controlling element and method for manufacturing the same | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5698897A | Semiconductor device having a plated heat sink | Electricity | 7 | Expired |
| US5821154A | Semiconductor device | Electricity | 7 | Expired |
| US6840683B2 | Embedded light transfer medium with a protection tube and an elastic covering | Physics | 4 | Expired |
| US5504352A | Semiconductor MESFET device with edge portion | Electricity | 3 | Expired |
| US7359842B1 | Soft sensor device and device for evaluating the same | Physics | 3 | Expired |
| US7538933B2 | Optical composition for multi-color display and manufacturing method thereof, and optical element and displaying method thereof | Physics | 3 | Active |
| US5922623A | Hydrogen fluoride vapor phase selective etching method for fabricating semiconductor devices | Electricity | 3 | Expired |
| US8746991B2 | Repairing method, repairing structure and connecting structure of embedded optical fiber of composite material structure | Emerging Cross-Sectional Technologies | 2 | Active |
| US7455903B2 | Optical materials and optical elements using the same | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6239623A | Direct coupling field effect transistor logic (DCFL) circuit | Electricity | 2 | Expired |
| US5726494A | Semiconductor device having a plated heat sink | Electricity | 1 | Expired |
| US7519473B2 | Device and method for estimating occurrence distribution of unascertained water and recording medium | Fixed Constructions | 0 | Expired |
| US6793806B2 | Water distribution amount predicting system | Physics | 0 | Expired |
| US6510245B1 | Method of generating classification model and recording medium | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.