Yoichi Matsubara
14Patents
7h-index
25Co-inventors
62Inventor score
Filing activity: Nov 24, 1992 → May 12, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5412952A | Pulse tube refrigerator | Mechanical Engineering; Lighting; Heating | 39 | Expired |
| US5335505A | Pulse tube refrigerator | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| US5974807A | Pulse tube refrigerator | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US6028673A | Inspection of solder bumps of bump-attached circuit board | Performing Operations; Transporting | 21 | Expired |
| US6278797A | Apparatus for inspecting land-attached circuit board | Physics | 16 | Expired |
| US5642623A | Gas cycle refrigerator | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US5339868A | Bent pipe having sectional form of high strength | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5653837A | Method for adhering film on surface of cathode-ray tube | Electricity | 6 | Expired |
| US7104055B2 | Pressure vibration generator | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US7169480B2 | Clad pipe | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5783021A | Method of and apparatus for applying a film to a substrate | Emerging Cross-Sectional Technologies | 1 | Expired |
| US5865939A | Method of and apparatus for applying a film to a substrate | Emerging Cross-Sectional Technologies | 1 | Expired |
| US7807273B2 | Alloy-coated boiler part and method of welding self-fluxing alloy-coated boiler part | Emerging Cross-Sectional Technologies | 0 | Expired |
| US9677127B2 | Method of detecting gene mutation | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.