Keiji Yamane
14Patents
5h-index
18Co-inventors
63Inventor score
Filing activity: Dec 2, 1981 → Sep 18, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6291094A | Separator for fuel cell, fuel cell incorporating the same, and method of production of the same | Emerging Cross-Sectional Technologies | 56 | Expired |
| US4445998A | Method for producing a steel lithographic plate | Emerging Cross-Sectional Technologies | 31 | Expired |
| US6528181B1 | Surface-treated steel sheet having lowered contact resistance and connecting terminal members made by using the same | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6248456A | Surface-treated steel plate having low contact resistance and connection terminal member made of the steel plate | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6488021B1 | Method and apparatus for producing semiconductor element | Performing Operations; Transporting | 5 | Expired |
| US6692869B1 | Surface-treated steel sheet for battery case, method of production thereof, battery case formed by the steel sheet and battery using the case | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7247514B2 | Semiconductor device and method for producing the same | Electricity | 4 | Expired |
| US4585529A | Method for producing a metal lithographic plate | Emerging Cross-Sectional Technologies | 4 | Expired |
| US6985504B2 | Semiconductor laser and method for manufacturing the same | Electricity | 3 | Expired |
| US8064014B2 | Light reflecting plate, method of manufacturing the same and light reflecting device | Physics | 2 | Active |
| US7150939B2 | Surface-treated steel sheet for battery container, a battery container, and a battery using same | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7442628B2 | Semiconductor laser manufacturing method | Electricity | 2 | Active |
| US7192851B2 | Semiconductor laser manufacturing method | Electricity | 1 | Expired |
| US7142576B2 | Semiconductor laser | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.