Yoshihiro Tomita
133Patents
24h-index
166Co-inventors
93Inventor score
Filing activity: Dec 18, 1987 → Jul 25, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5771555A | Method for producing an electronic component using direct bonding | Emerging Cross-Sectional Technologies | 232 | Expired |
| US5666008A | Flip chip semiconductor device | Electricity | 102 | Expired |
| US5900582A | Lead frame including frame-cutting slit for lead-on-chip (LOC) semiconductor device and semiconductor device incorporating the lead frame | Emerging Cross-Sectional Technologies | 84 | Expired |
| US6084294A | Semiconductor device comprising stacked semiconductor elements | Electricity | 80 | Expired |
| US5440169A | Resin-packaged semiconductor device with flow prevention dimples | Electricity | 73 | Expired |
| US5666706A | Method of manufacturing a piezoelectric acoustic wave device | Emerging Cross-Sectional Technologies | 68 | Expired |
| US5969463A | Energy trapping piezoelectric device and producing method thereof | Electricity | 68 | Expired |
| US5535509A | Method of making a lead on chip (LOC) semiconductor device | Emerging Cross-Sectional Technologies | 53 | Expired |
| US5759753A | Piezoelectric device and method of manufacturing the same | Electricity | 47 | Expired |
| US5647932A | Method of processing a piezoelectric device | Emerging Cross-Sectional Technologies | 45 | Expired |
| US6459152B1 | Semiconductor device having a chip, reinforcing plate, and sealing material sharing a common rear surface | Electricity | 45 | Expired |
| US5982010A | Piezoelectric device and method of manufacturing the same | Electricity | 38 | Expired |
| US5929555A | Piezoelectric resonator and method for fabricating the same | Emerging Cross-Sectional Technologies | 34 | Expired |
| US5372295A | Solder material, junctioning method, junction material, and semiconductor device | Electricity | 33 | Expired |
| US5910699A | Method of manufacturing a composite substrate and a piezoelectric device using the substrate | Emerging Cross-Sectional Technologies | 33 | Expired |
| US6270202A | Liquid jetting apparatus having a piezoelectric drive element directly bonded to a casing | Performing Operations; Transporting | 32 | Expired |
| US6344682B1 | Semiconductor device comprising a semiconductor element mounted on a substrate and covered by a wiring board | Electricity | 32 | Expired |
| US5763829A | Leadframe including frame-cutting slit for lead-on-chip (LOC) semiconductor device and semiconductor device incorporating the leadframe | Emerging Cross-Sectional Technologies | 32 | Expired |
| US4831636A | Coding transmission equipment for carrying out coding with adaptive quantization | Electricity | 30 | Expired |
| US6098460A | Acceleration sensor and shock detecting device using the same | Emerging Cross-Sectional Technologies | 28 | Expired |
| US5159611A | Variable rate coder | Electricity | 28 | Expired |
| US5698471A | Method of manufacturing a composite substrate and a piezoelectric device using the substrate | Emerging Cross-Sectional Technologies | 27 | Expired |
| US5925973A | Electronic component and method for producing the same | Emerging Cross-Sectional Technologies | 26 | Expired |
| US5986336A | Semiconductor device including a heat radiation plate | Electricity | 24 | Expired |
| US5959353A | Semiconductor device | Electricity | 23 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.