Yoshiaki Yamada
105Patents
17h-index
121Co-inventors
89Inventor score
Filing activity: Jun 1, 1979 → Dec 20, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5804505A | Method of producing semiconductor device having buried contact structure | Emerging Cross-Sectional Technologies | 276 | Expired |
| US5910020A | Method for fabricating a semiconductor device having a refractory metal pillar for electrical connection | Electricity | 84 | Expired |
| US5827778A | Method of manufacturing a semiconductor device using a silicon fluoride oxide film | Electricity | 75 | Expired |
| US5900645A | Semiconductor device and method of testing the same | Electricity | 63 | Expired |
| US5470792A | Method of manufacturing semiconductor device | Electricity | 34 | Expired |
| US6328122A | Hybrid vehicle comprising emergency drive device | Emerging Cross-Sectional Technologies | 31 | Expired |
| US5643422A | Reactive sputtering system for depositing titanium nitride without formation of titanium nitride on titanium target and process of depositing titanium nitride layer | Electricity | 25 | Expired |
| US6353786B1 | Braking device for an electrically-powered car that uses a load of an electrical motor as a braking force | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5744016A | Sputtering apparatus | Electricity | 24 | Expired |
| US5716477A | Thermal image transfer recording medium and recording method using the same | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5543357A | Process of manufacturing a semiconductor device by filling a via hole in an interlayered film of the device with wiring metal | Emerging Cross-Sectional Technologies | 21 | Expired |
| US6661108B1 | Hybrid drive device | Emerging Cross-Sectional Technologies | 21 | Expired |
| US6250767A | Light guide plate, surface light source and display using the same | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5661558A | Optical detector for flowing sample and optical detection method for flowing sample | Physics | 20 | Expired |
| US5238874A | Fabrication method for laminated films comprising Al-Si-Co alloy film and refractory metal silioide copper film | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6130154A | Semiconductor device and fabrication process thereof | Electricity | 19 | Expired |
| US5997398A | Semiconductor wafer storage apparatus and semiconductor device fabricating apparatus using said apparatus | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5571001A | Electrically-powered water-immersed pump | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US6440828B1 | Process of fabricating semiconductor device having low-resistive contact without high temperature heat treatment | Electricity | 15 | Expired |
| US6093637A | Method of making a multi-layer interconnection structure | Electricity | 14 | Expired |
| US5383482A | Semiconductor processing apparatus and module | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6627996B1 | Semiconductor device having fluorine containing silicon oxide layer as dielectric for wiring pattern having anti-reflective layer and insulating layer thereon | Electricity | 13 | Expired |
| US6921148B2 | LIQUID DROP DISCHARGE HEAD, DISCHARGE METHOD AND DISCHARGE DEVICE; ELECTRO OPTICAL DEVICE, METHOD OF MANUFACTURE THEREOF, AND DEVICE FOR MANUFACTURE THEREOF; COLOR FILTER, METHOD OF MANUFACTURE THEREOF, AND DEVICE FOR MANUFACTURE THEREOF; AND DEVICE INCORPORATING BACKING, METHOD OF MANUFACTURE THEREOF, AND DEVICE FOR MANUFACTURE THEREOF | Performing Operations; Transporting | 12 | Expired |
| US6058764A | Analytical apparatus, liquid chromatography analyzer and a method therefor | Physics | 12 | Expired |
| US6991315B2 | Ejecting method and ejecting apparatus | Electricity | 12 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.