Patent assignee · JP · COMPANY

FUJITSU OPTICAL COMPONENTS LIMITED

239Patents
237Active
239Granted
58Portfolio score

Filing activity: Feb 24, 2010 → Jan 12, 2023 · 9 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US8824836B2 Optical waveguide, optical modulator and optical coupler Physics 86 Active
US9020363B2 Optical transmitter Electricity 51 Active
US9647753B1 Coherent optical receiver Electricity 21 Active
US11710914B2 Optical module Physics 11 Active
US8712195B2 Optical modulator module Physics 10 Active
US9535213B2 Optical module with cover material covering part of electrode portion and signal line Physics 9 Active
US9203518B2 Optical transmitter and waveform compensation method Electricity 8 Active
US10349492B2 Wavelength tunable light source, light source module, and wavelength control method Electricity 7 Active
US8761548B2 Optical modulator and optical modulation control method Physics 7 Active
US8588622B2 Optical light source control with auxiliary controller Electricity 7 Active
US9244328B2 Optical modulator and optical modulation control method Physics 7 Active
US9316887B2 Optical modulator and optical transmitter Physics 7 Active
US8467634B2 Optical device having optical modulators Physics 7 Active
US10044439B2 Optical receiver that receives polarization multiplexed optical signal Electricity 7 Active
US9231728B2 Optical module and optical transmitter Physics 6 Active
US9507235B2 Optical module and transmitting apparatus Physics 6 Active
US8794848B2 Optical module Physics 6 Active
US9651804B2 Optical module Physics 6 Active
US8380017B2 Optical waveguide device Physics 6 Active
US8600199B2 Optical modulator and optical modulating method Physics 5 Active
US8244075B2 Optical device Physics 5 Active
US8472759B2 Optical device and optical transmitter Physics 5 Active
US10355448B2 Tunable laser source Electricity 5 Active
US11086149B2 Electro-optic device Physics 5 Active
US10659154B2 Optical module and control method of controlling center wavelength of optical filter Physics 5 Active

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