Hitoshi Yoshioka
8Patents
6h-index
11Co-inventors
52Inventor score
Filing activity: May 4, 1990 → Jun 20, 1997
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5288333A | Wafer cleaning method and apparatus therefore | Electricity | 118 | Expired |
| US5158100A | Wafer cleaning method and apparatus therefor | Emerging Cross-Sectional Technologies | 43 | Expired |
| US5111372A | DC-DC converter | Electricity | 34 | Expired |
| US5856259A | Preparation process of supported catalyst for the synthesis of methacrolein and methacrylic acid | Performing Operations; Transporting | 23 | Expired |
| US5171949A | Switching power supply for microwave oven | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5082998A | Switching power supply for microwave oven | Electricity | 14 | Expired |
| US5701169A | Illumination system and exposure apparatus with demountable transparent protective member | Electricity | 4 | Expired |
| US5086381A | DC-DC converter | Electricity | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.