Inventor · Hitachi, JP

Takeshi Eri

4Patents
2h-index
7Co-inventors
33Inventor score

Filing activity: Jun 26, 2003 → May 27, 2010

Most-cited inventions

PatentTitleAreaCited byStatus
US7829913B2 Porous substrate and its manufacturing method, and gan semiconductor multilayer substrate and its manufacturing method Electricity 12 Active
US8310029B2 Group III nitride semiconductor free-standing substrate and method of manufacturing the same, group III nitride semiconductor device and method of manufacturing the same Electricity 3 Active
US8102026B2 Group-III nitride semiconductor freestanding substrate and manufacturing method of the same Electricity 1 Active
US8466471B2 Nitride semiconductor free-standing substrate and method for making same Electricity 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.