Patent assignee · JP · COMPANY

SEI OPTIFRONTIER CO., LTD.

82Patents
78Active
82Granted
54Portfolio score

Filing activity: Dec 17, 2008 → Aug 12, 2022 · 14 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US9213150B2 Optical coupling apparatus and optical transceiver installing the same Physics 45 Active
US10539745B2 Optical connector Physics 44 Active
US8628252B2 Waterproof connector and waterproof device using the same Physics 38 Active
USD733655S1 Housing for optical connector General 32 Active
US8740479B2 Optical connector and method for assembling same Emerging Cross-Sectional Technologies 26 Active
USD720785S1 Electrode bar for optical fiber fusion splicer General 21 Active
US10197739B2 Optical connector plug, receptacle for optical connector, and optical connector connection structure Electricity 15 Active
US8950955B2 Heating device for optical-fiber reinforcement, and optical-fiber fusion splicing device Physics 13 Active
USD702530S1 Metal hinge support for an optical fiber cutter General 13 Active
US10677996B2 Optical connector, detaching jig, and cap Physics 13 Active
USD709286S1 Carrying case for an optical fiber fusion splicer General 10 Active
USD641600S1 Optical fiber jacket stripper General 10 Expired
USD828811S1 Housing for an optical fiber connector General 9 Active
USD734266S1 Optical connector General 8 Active
US10641971B2 Optical connector Physics 7 Active
USD657953S1 Carrying case for an optical fiber cutter General 7 Expired
USD746885S1 Optical fiber fusion splicer General 7 Active
USD759138S1 Optical fiber fusion splicer General 7 Active
US10114179B2 Optical connector, pin keeper, pin insertion jig, expansion member, and pin insertion tool Physics 6 Active
US8317406B2 Optical connector Physics 6 Active
US8690454B2 Optical connector Physics 6 Active
US9016535B2 Fiber cleaver Emerging Cross-Sectional Technologies 5 Active
US10825309B2 Theft sensing system for fusion splicer device and fusion splicer device Physics 5 Active
US10523317B2 Measurement system and measurement method Electricity 4 Active
US9075196B2 Optical fiber jacket remover Performing Operations; Transporting 4 Active

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