Inventor · Ibigawa, JP

Yoshitaka Fujita

53Patents
7h-index
44Co-inventors
72Inventor score

Filing activity: Aug 26, 1982 → Dec 1, 2022

Most-cited inventions

PatentTitleAreaCited byStatus
US5754527A Line switching apparatus Electricity 36 Expired
US4514304A Method for purifying and concentrating organic matters Performing Operations; Transporting 15 Expired
US8594888B2 Steering control apparatus Performing Operations; Transporting 12 Active
US5331630A Renewal method and apparatus for AU-4 and TU-3 pointers of synchronous digital hierarchy Electricity 11 Expired
US8818634B2 Control apparatus for vehicle Performing Operations; Transporting 10 Active
US6333915A On-line line monitor system Electricity 10 Expired
US4513790A Method and apparatus for controlling motor-driven let-off motion for looms Textiles; Paper 8 Expired
US6252846A Automatic switching system Electricity 7 Expired
US6868066B1 ATM cell transfer apparatus with hardware structure for OAM cell generation Electricity 7 Expired
US4746848A Weft yarn feeding device for a loom Textiles; Paper 6 Expired
US5995507A ATM cell multiplexing apparatus Electricity 6 Expired
US9522661B2 Vehicle control apparatus and vehicle control method Performing Operations; Transporting 5 Active
US4529012A Apparatus for controlling motor-driven let-off motion for looms Textiles; Paper 5 Expired
US8658103B2 Exhaust gas processing device Emerging Cross-Sectional Technologies 4 Active
US9079607B2 Vehicle steering control apparatus Performing Operations; Transporting 4 Active
US7776403B2 Method for producing organic thin film Emerging Cross-Sectional Technologies 3 Expired
US4488580A Automatic method and apparatus for stopping loom rotation at a constant crank angle Textiles; Paper 3 Expired
US5712862A Error detection system for digital data transmission multiplexing system Electricity 3 Expired
US7065071B2 Point-to-point protocol termination device Electricity 3 Expired
US8892309B2 Vehicle steering control apparatus Performing Operations; Transporting 3 Active
US9789869B2 Driving support apparatus and driving support method Performing Operations; Transporting 3 Active
US6823137B2 Optical line protection device and optical line protection method Electricity 3 Expired
US8996254B2 Vehicle steering control apparatus Performing Operations; Transporting 3 Active
US7470803B2 Compounds for forming photoconvertible organic thin film and organic thin film formed body Chemistry; Metallurgy 2 Expired
US8361375B2 Forming mold or electroforming mother die having release layer and method for manufacturing the same Chemistry; Metallurgy 2 Active

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