Hiroaki Murakami
65Patents
8h-index
128Co-inventors
81Inventor score
Filing activity: Apr 7, 1988 → Nov 17, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5298459A | Method of manufacturing semiconductor device terminal having a gold bump electrode | Emerging Cross-Sectional Technologies | 30 | Expired |
| US5689463A | Semiconductor memory device | Physics | 21 | Expired |
| US5592817A | Forklift controller | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US5474040A | Cylinder block for an internal combustion engine | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US6307793A | Memory device, coupling noise eliminator, and coupling noise elimination method | Physics | 13 | Expired |
| US6988582B2 | Gear, reduction gear combination and electric power steering apparatus | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5015890A | Sense amplifier having pull-up circuit controlled by feedback | Physics | 10 | Expired |
| US5224632A | Measuring cap | Physics | 9 | Expired |
| US4974049A | Semiconductor integrated circuit configured by using polycell technique | Electricity | 8 | Expired |
| US6467567B2 | Power steering apparatus | Performing Operations; Transporting | 7 | Expired |
| US7128193B2 | Torque limiter | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US5210436A | Semiconductor device with input protection circuit of high withstand voltage | Electricity | 6 | Expired |
| US8105171B2 | Torque limiting mechanism | Mechanical Engineering; Lighting; Heating | 5 | Active |
| US8327676B2 | Upper-end formed glass complex for hot expanding piercing and method of manufacturing billet for hot extrusion pipe making | Performing Operations; Transporting | 4 | Active |
| US7113443B2 | Method of address distribution time reduction for high speed memory macro | Physics | 3 | Expired |
| US5017810A | Input switching device used in a logic MOS integrated circuit | Electricity | 3 | Expired |
| US8346111B2 | Image forming device | Physics | 3 | Active |
| US6941075B2 | Wavelength division multiplexing optical transmission method and system | Electricity | 2 | Expired |
| US8254813B2 | Multicolor imaging system | Physics | 2 | Active |
| US7085147B2 | Systems and methods for preventing malfunction of content addressable memory resulting from concurrent write and lookup operations | Physics | 2 | Expired |
| US8903278B2 | Drive unit, and image forming apparatus and process cartridge incorporating same | Emerging Cross-Sectional Technologies | 2 | Active |
| US8887893B2 | Work system | Emerging Cross-Sectional Technologies | 2 | Active |
| US4814639A | Super integration circuit device having a plurality of IC-chip equivalent regions formed on a single semiconductor substrate | Emerging Cross-Sectional Technologies | 2 | Expired |
| US9471021B2 | Apparatus and method for forming image | Physics | 1 | Active |
| US10170227B2 | Electomagnetic driver | Electricity | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.