Patent assignee · JP · COMPANY

FUJITSU SEMICONDUCTOR LIMITED

1,692Patents
1,638Active
1,692Granted
64Portfolio score

Filing activity: Mar 21, 2000 → Aug 27, 2019 · 1,019 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US8393091B2 Substrate processing method, and method of manufacturing semiconductor device Electricity 508 Active
US7795619B2 Semiconductor device Electricity 257 Expired
US7971160B2 Creating method of photomask pattern data, photomask created by using the photomask pattern data, and manufacturing method of semiconductor apparatus using the photomask Electricity 164 Active
US8130529B2 Semiconductor device Electricity 110 Active
US8204456B2 Systems and methods for spurious emission cancellation Electricity 80 Active
US7865733B2 Secure processor and a program for a secure processor Physics 72 Active
US8018033B2 Semiconductor device and manufacturing method of the same Electricity 47 Active
US8665628B2 Ferroelectric memory device Physics 41 Active
US8422404B2 Method and device for transmitting packets Electricity 31 Active
US8422330B2 Memory controller and memory controlling method Physics 30 Active
US8536622B2 Semiconductor device and power supply apparatus Electricity 29 Active
US8410613B2 Semiconductor device having groove-shaped pattern Electricity 28 Active
US7906851B2 Semiconductor device having groove-shaped via-hole Electricity 27 Active
US8283934B2 Capacitance sensor for detecting a charge voltage of a multi-capacitor circuit Electricity 27 Active
US8836551B2 Analog digital converter (ADC) and correction circuit and correction method therefor Electricity 27 Active
US8468364B2 Secure processor Physics 25 Active
US8704564B2 PLL circuit Electricity 22 Active
US7869261B2 Semiconductor memory which enables reliable data writing with low supply voltage by improving the conductance via access transistors during write operation Physics 22 Expired
US8248046B2 DC-DC converter for pulse frequency modulation control and power supply system Emerging Cross-Sectional Technologies 21 Active
US7906852B2 Semiconductor device and manufacturing method of the same Electricity 21 Active
US8255730B2 Power management unit and systems LSI having the power management unit Emerging Cross-Sectional Technologies 20 Active
US7939913B2 Semiconductor device Electricity 20 Active
US7843179B2 Control circuit for synchronous rectifier-type DC-DC converter, synchronous rectifier-type DC-DC converter and control method thereof Emerging Cross-Sectional Technologies 19 Active
US7884459B2 Semiconductor device suitable for a stacked structure Electricity 19 Active
US7875521B2 Semiconductor device and production method thereof Electricity 18 Active

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.