Inventor · disambiguated record
Nobuyuki Oka
Also filed as: OKA NOBUYUKI
24 granted patents·6 pending applications·408 citations·filing 1990–2024
96Inventor score
Top patents by PatentIndex Score
30 records- 0191US6462158B1Polymerizable compounds having norbornanelactone structure and polymersMARUZEN PETROCHEM CO LTD·Filed 2000·Granted Oct 8, 2002·27 cites·14 claims
- 0290US5487047AMagnetooptical recording apparatus for recording information in a lead-in region of a recording mediumSONY CORP·Filed 1993·Granted Jan 23, 1996·53 cites·4 claims
- 0389US6220275B1Solenoid valveNOK CORP·Filed 1999·Granted Apr 24, 2001·70 cites·15 claims
- 0487US5095470ACapacitance detection control circuit for positioning a magnetic head close to a magneto-optical diskSONY CORP·Filed 1990·Granted Mar 10, 1992·45 cites·2 claims
- 0584US6886084B2Storage controlling device and control method for a storage controlling deviceHITACHI LTD·Filed 2003·Granted Apr 26, 2005·41 cites·7 claims
- 0680US11887234B2Avatar display device, avatar generating device, and programSOFTBANK CORP·Filed 2021·Granted Jan 30, 2024·1 cites·10 claims
- 0780US7240241B2Backup method and storage control device using the sameHITACHI LTD·Filed 2006·Granted Jul 3, 2007·9 cites·10 claims
- 0877US12017292B2Method for manufacturing hypoid gearMAZDA MOTOR·Filed 2020·Granted Jun 25, 2024·2 cites·19 claims
- 0977US6461788B1Polymerizable compounds having cyclohexanelactone structure and polymersMARUZEN PETROCHEM CO LTD·Filed 2000·Granted Oct 8, 2002·14 cites·10 claims
- 1077US5897098ASolenoid valve for automatic transmission control systemNOK CORP·Filed 1997·Granted Apr 27, 1999·38 cites·6 claims
- 1175US7654538B2GasketNOK CORP·Filed 2003·Granted Feb 2, 2010·19 cites·2 claims
- 1272US5495456AMagneto-optical recording and reproducing apparatus having a laser driving circuit which superimposes a signal having a frequency at least double the maximum recording signal frequencySONY CORP·Filed 1994·Granted Feb 27, 1996·22 cites·8 claims
- 1371US5463602AReproducing apparatus which can play multiple types of discs and biases focusing error signal based on disc typeSONY CORP·Filed 1995·Granted Oct 31, 1995·26 cites·3 claims
- 1467US8169747B2Cushioning ramp having a stepped structure for a magnetic disc apparatusSEKI SHOTA·Filed 2009·Granted May 1, 2012·3 cites·2 claims
- 1566US5168483AMagnetic head position control apparatus including drive means responsive to a summed signal from a capacitance detection electrode and a disk size detector meansSONY CORP·Filed 1991·Granted Dec 1, 1992·15 cites·5 claims
- 1662US12409726B2Vehicle differential and vehicleMAZDA MOTOR·Filed 2024·Granted Sep 9, 2025·0 cites·20 claims
- 1760US2025105611A1Electrical connection boxYAZAKI CORP·Filed 2024·Application pending·0 cites
- 1860US2025105605A1Electrical connection boxYAZAKI CORP·Filed 2024·Application pending·0 cites
- 1959US2025105599A1Bus barYAZAKI CORP·Filed 2024·Application pending·0 cites
- 2051US10202230B2Animal litter box package bodyUNICHARM CORP·Filed 2014·Granted Feb 12, 2019·0 cites·8 claims
- 2149US5959051AProcess for preparing vinylphenol polymers and stabilized compositions of vinylphenol-containing polymerization raw materialMARUZEN PETROCHEM CO LTD·Filed 1999·Granted Sep 28, 1999·8 cites·11 claims
- 2246US7080219B2Storage controlling device and control method for a storage controlling deviceHITACHI LTD·Filed 2005·Granted Jul 18, 2006·0 cites·14 claims
- 2345US2004010732A1Backup method and storage control device using the sameHITACHI LTD·Filed 2003·Application pending·0 cites
- 2443US8460601B2Vessel for molten metalOHASHI HIDEAKI·Filed 2009·Granted Jun 11, 2013·0 cites·2 claims
- 2542US2023061557A1Electronic device and programSOFTBANK CORP·Filed 2021·Application pending·0 cites
- 2640US6258901B1Process for producing lightly colored p-vinylphenol polymerMARUZEN PETROCHEM CO LTD·Filed 1999·Granted Jul 10, 2001·6 cites·9 claims
- 2739US2003161238A1Optical disk recording and/or reproducing apparatus, and recording and/or reproducing methodFiled 2002·Application pending·0 cites
- 2832US5111441AApparatus for generating magnetic field varying in response to an information signalSONY CORP·Filed 1991·Granted May 5, 1992·2 cites·4 claims
- 2931USD654520SCrucible for meltingOKADA TAMIO·Filed 2010·Granted Feb 21, 2012·5 cites·1 claims
- 3030US5979408AFuel injection systemNOK CORP·Filed 1997·Granted Nov 9, 1999·2 cites·10 claims
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