Hisao Sato
61Patents
16h-index
66Co-inventors
87Inventor score
Filing activity: May 23, 1975 → Dec 18, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7372066B2 | Gallium nitride compound semiconductor device and manufacturing method | Electricity | 65 | Expired |
| US5950283A | Clip | Emerging Cross-Sectional Technologies | 61 | Expired |
| US4332060A | Spring clip for holding sheets of paper or the like | Emerging Cross-Sectional Technologies | 60 | Expired |
| US4760411A | Electrostatic recording apparatus | Physics | 54 | Expired |
| USD492351S1 | Clip | General | 45 | Expired |
| US5309605A | Spring clip | Emerging Cross-Sectional Technologies | 33 | Expired |
| US4761074A | Method for measuring impurity concentrations in a liquid and an apparatus therefor | Physics | 32 | Expired |
| US4182474A | Stapler having staple and tag magazines | Performing Operations; Transporting | 31 | Expired |
| USD372498S | Paper clip | General | 27 | Expired |
| US5890642A | Clip driver | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5944353A | Document cover | Performing Operations; Transporting | 23 | Expired |
| US7281768B2 | Manufacturing method and apparatus of brush | Human Necessities | 21 | Expired |
| USD367616S | Watchcase | General | 20 | Expired |
| US4811884A | Stapler | Performing Operations; Transporting | 19 | Expired |
| US5806147A | Clip | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6605187B1 | Method for producing pulp molded article | Textiles; Paper | 17 | Expired |
| US4353157A | Clip driver | Emerging Cross-Sectional Technologies | 16 | Expired |
| US7067838B1 | Gallium-nitride-based light-emitting apparatus | Electricity | 15 | Expired |
| USD381361S | Paper clip | General | 12 | Expired |
| USD381276S | Watchcase | General | 11 | Expired |
| US4996755A | Clip driver | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4981245A | Stapler and staple | Performing Operations; Transporting | 11 | Expired |
| US5136768A | Clip driver | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5119553A | Spring clip and driver therefor | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5472238A | Paper binder | Performing Operations; Transporting | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.