Inventor · disambiguated record
Masakazu Oi
Also filed as: OI MASAKAZU
8 granted patents·1 pending application·235 citations·filing 1974–2002
88Inventor score
Top patents by PatentIndex Score
9 records- 0197US5038839AFilling apparatusTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1989·Granted Aug 13, 1991·119 cites·11 claims
- 0283US4125805AMethod and apparatus for defect inspection of liquid-filled insulating containerTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1977·Granted Nov 14, 1978·44 cites·35 claims
- 0356US5331213APulse transmission circuit with undershoot eliminating circuitryFUJITSU LTD·Filed 1992·Granted Jul 19, 1994·13 cites·17 claims
- 0455US6320940B1Network termination device with automatic detection and correction of circuit polarityFUJITSU LTD·Filed 1999·Granted Nov 20, 2001·17 cites·5 claims
- 0548US6532260B2Pulse transmission device for use in long-distance communicationFUJITSU LTD·Filed 1999·Granted Mar 11, 2003·24 cites·9 claims
- 0642US3942934AMold assembly for use in packaging machineTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1974·Granted Mar 9, 1976·12 cites·16 claims
- 0741US6778489B1Subscriber terminating equipmentFUJITSU LTD·Filed 2000·Granted Aug 17, 2004·0 cites·17 claims
- 0840US2003095543A1DSL relay method and the apparatusOI MASAKAZU·Filed 2002·Application pending·0 cites
- 0936US6434220B2Long-distance transmission system and deviceFUJITSU LTD·Filed 1999·Granted Aug 13, 2002·6 cites·29 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →