Akihiro Yahata
6Patents
4h-index
9Co-inventors
50Inventor score
Filing activity: Feb 13, 1976 → Apr 20, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5977564A | Semiconductor device | Electricity | 24 | Expired |
| US6246077A | Semiconductor device | Electricity | 22 | Expired |
| US6137136A | Power semiconductor device | Electricity | 12 | Expired |
| US5153503A | Method and apparatus for measuring a carrier lifetime of IV group semiconductor | Physics | 10 | Expired |
| US4026994A | Method for manufacturing gallium phosphide | Chemistry; Metallurgy | 2 | Expired |
| US6594014B2 | Color detecting sensor and method for ink ribbon | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.