Inventor · Hadano, JP

Toshihiro Ohki

42Patents
5h-index
25Co-inventors
65Inventor score

Filing activity: Dec 28, 2004 → Jan 20, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US7955984B2 High speed high power nitride semiconductor device Electricity 38 Active
US8883581B2 Compound semiconductor device and method for manufacturing the same Electricity 15 Active
US9093512B2 Compound semiconductor device Electricity 13 Active
US9099351B2 Compound semiconductor device and method of manufacturing the same Electricity 11 Active
US8866157B2 Semiconductor device and method of fabricating the semiconductor device Electricity 6 Active
US7948062B2 Semiconductor device and method for manufacturing semiconductor device Electricity 5 Active
US8278688B2 Compound semiconductor device and manufacturing method thereof Electricity 4 Active
US9553152B2 Semiconductor device Electricity 4 Active
US7220628B2 Semiconductor device and manufacturing method thereof, and gate electrode and manufacturing method thereof Electricity 3 Expired
US9035353B2 Compound semiconductor device comprising electrode above compound semiconductor layer and method of manufacturing the same Electricity 3 Active
US8003452B2 Compound semiconductor device and manufacturing method thereof Electricity 3 Active
US8030686B2 Semiconductor device and method for manufacturing the same Electricity 2 Active
US9379229B2 Semiconductor apparatus including protective film on gate electrode and method for manufacturing the semiconductor apparatus Electricity 2 Active
US8426260B2 Compound semiconductor device and method of manufacturing the same Electricity 2 Active
US8791465B2 Compound semiconductor device and manufacturing therefor Electricity 1 Active
US9269782B2 Semiconductor device Electricity 1 Active
US8969919B2 Field-effect transistor Electricity 1 Active
US9608083B2 Semiconductor device Electricity 1 Active
US8389351B2 Method for fabricating semiconductor device Electricity 1 Active
US9496380B2 Compound semiconductor device comprising compound semiconductor layered structure having buffer layer and method of manufacturing the same Electricity 1 Active
US8519441B2 High speed high power nitride semiconductor device Electricity 0 Active
US9035357B2 Compound semiconductor device and manufacturing method therefor Electricity 0 Active
US9276100B2 Semiconductor device having a gate recess structure Electricity 0 Active
US11088044B2 Compound semiconductor device and fabrication method therefor, and amplifier Electricity 0 Active
US8715213B2 Bone metabolism improving agent Human Necessities 0 Active

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