Inventor · disambiguated record
Takao Soma
Also filed as: SOMA TAKAO
47 granted patents·1,731 citations·filing 1982–2004
99Inventor score
Files withNGK INSULATORS LTD38CANON KK4IWATSU ELECTRIC CO LTD2ALPS ELECTRIC CO LTD1NGK INSULATORS INC1
Top patents by PatentIndex Score
47 records- 0197US5231690AWafer heaters for use in semiconductor-producing apparatus and heating units using such wafer heatersNGK INSULATORS LTD·Filed 1991·Granted Jul 27, 1993·320 cites·13 claims
- 0296US5897970ASystem for production of high-purity hydrogen, process for production of high-purity hydrogen, and fuel cell systemNGK INSULATORS LTD·Filed 1997·Granted Apr 27, 1999·177 cites·5 claims
- 0396US5741474AProcess for production of high-purity hydrogenNGK INSULATORS LTD·Filed 1995·Granted Apr 21, 1998·180 cites·5 claims
- 0495US5612012AMethod for removing carbon monoxide from reformed gasNGK INSULATORS LTD·Filed 1995·Granted Mar 18, 1997·120 cites·10 claims
- 0594US5614001AHydrogen separator, hydrogen separating apparatus and method for manufacturing hydrogen separatorNGK INSULATORS LTD·Filed 1995·Granted Mar 25, 1997·113 cites·12 claims
- 0688US4942999AMetal-ceramic joined composite bodies and joining process thereforNGK INSULATORS INC·Filed 1988·Granted Jul 24, 1990·46 cites·18 claims
- 0779US6439051B2Vibrators, vibratory gyroscopes, devices for measuring a linear acceleration and a method of measuring a turning angular rateNGK INSULATORS LTD·Filed 2001·Granted Aug 27, 2002·34 cites·46 claims
- 0879US5432024APorous lanthanum manganite sintered bodies and solid oxide fuel cellsNGK INSULATORS LTD·Filed 1993·Granted Jul 11, 1995·29 cites·37 claims
- 0978US5411767AMethod for producing interconnector for solid electrolyte type fuel cellNGK INSULATORS LTD·Filed 1992·Granted May 2, 1995·42 cites·11 claims
- 1074US6018212AVibrator, vibratory gyroscope, and vibration adjusting methodNGK INSULATORS LTD·Filed 1997·Granted Jan 25, 2000·49 cites·61 claims
- 1173US5490228AHeating units for use in semiconductor-producing apparatuses and production thereofNGK INSULATORS LTD·Filed 1993·Granted Feb 6, 1996·44 cites·3 claims
- 1271US6046531AVibrator, vibratory gyroscope, and linear accelerometerNGK INSULATORS LTD·Filed 1998·Granted Apr 4, 2000·49 cites·33 claims
- 1371US5294750ACeramic packages and ceramic wiring boardNGK INSULATORS LTD·Filed 1991·Granted Mar 15, 1994·43 cites·7 claims
- 1471US4795724ASilicon nitride sintered bodies and process for manufacturing the sameNGK INSULATORS LTD·Filed 1987·Granted Jan 3, 1989·22 cites·5 claims
- 1570US5998911AVibrator, vibratory gyroscope, and vibration adjusting methodNGK INSULATORS LTD·Filed 1997·Granted Dec 7, 1999·48 cites·156 claims
- 1667US6747393B2Vibrator, vibratory gyroscope, and vibration adjusting methodNGK INSULATORS LTD·Filed 2002·Granted Jun 8, 2004·20 cites·17 claims
- 1766US6437483B2Vibrator, vibratory gyroscope, and vibration adjusting methodNGK INSULATORS LTD·Filed 2001·Granted Aug 20, 2002·20 cites·2 claims
- 1866US4692420ASilicon nitride sintered body and manufacturing method thereofNGK INSULATORS LTD·Filed 1986·Granted Sep 8, 1987·17 cites·6 claims
- 1965US6192756B1Vibrators vibratory gyroscopes a method of detecting a turning angular rate and a linear accelerometerNGK INSULATORS LTD·Filed 1999·Granted Feb 27, 2001·35 cites·37 claims
- 2064US6651498B1Vibratory gyroscope, vibrator used in this gyroscope, method for analyzing vibration of the vibrator, method for supporting the vibrator, and method for manufacturing the vibratory gyroscopeNGK INSULATORS LTD·Filed 2000·Granted Nov 25, 2003·16 cites·33 claims
- 2163US6227048B1Vibrators, vibratory gyroscopes, devices for measuring a linear acceleration and a method of measuring a turning angular rateNGK INSULATORS LTD·Filed 1998·Granted May 8, 2001·29 cites·56 claims
- 2263US5292599ACell units for solid oxide fuel cells and power generators using such cell unitsNGK INSULATORS LTD·Filed 1992·Granted Mar 8, 1994·30 cites·24 claims
- 2361US4559824ACeramic testing methodNGK INSULATORS LTD·Filed 1984·Granted Dec 24, 1985·16 cites·10 claims
- 2459US6346765B1Vibrator, vibratory gyroscope, and vibrator adjusting methodNGK INSULATORS LTD·Filed 1999·Granted Feb 12, 2002·24 cites·63 claims
- 2558US5489483APorous sintered bodies and solid oxide fuel cells using such porous sintered bodies as air electrodesNGK INSULATORS LTD·Filed 1994·Granted Feb 6, 1996·17 cites·53 claims
- 2657US6858972B2Vibrator, vibratory gyroscope, and vibration adjusting methodNGK INSULATORS LTD·Filed 2003·Granted Feb 22, 2005·11 cites·9 claims
- 2757US4722915AZirconia porcelainNGK INSULATORS LTD·Filed 1986·Granted Feb 2, 1988·15 cites·13 claims
- 2856US7140251B2Devices for measuring physical values and vibratorsSEIKO EPSON CORP·Filed 2004·Granted Nov 28, 2006·10 cites·12 claims
- 2955US6186003B1Vibratory gyroscope, vibrator used in this gyroscope, method for analyzing vibration of the vibrator, method for supporting the vibrator, and method for manufacturing the vibratory gyroscopeNGK INSULATORS LTD·Filed 1998·Granted Feb 13, 2001·23 cites·16 claims
- 3055US5163770AMethod of bonding members having different coefficients of thermal expansionNGK INSULATORS LTD·Filed 1990·Granted Nov 17, 1992·12 cites·18 claims
- 3155US4874674AMetal-ceramic composite bodiesNGK INSULATORS LTD·Filed 1987·Granted Oct 17, 1989·19 cites·8 claims
- 3254US6444384B2Process for producing electrophotographic photosensitive member and electrophotographic photosensitive memberCANON KK·Filed 2001·Granted Sep 3, 2002·5 cites·34 claims
- 3354US4767730ACeramic shape memory elementNGK INSULATORS LTD·Filed 1986·Granted Aug 30, 1988·12 cites·17 claims
- 3448US4692419ASilicon nitride sintered body and manufacturing method thereofNGK INSULATORS LTD·Filed 1986·Granted Sep 8, 1987·9 cites·8 claims
- 3546US4798493ACeramic-metal composite bodyNGK INSULATORS LTD·Filed 1986·Granted Jan 17, 1989·16 cites·11 claims
- 3643US5561015AElectrophotographic photosensitive member having interlayer on cleaned support and process for production thereofCANON KK·Filed 1994·Granted Oct 1, 1996·7 cites·64 claims
- 3742US5445902AMethod for operating a power generatorNGK INSULATORS LTD·Filed 1993·Granted Aug 29, 1995·11 cites·9 claims
- 3842US4908256ACeramic-metal composite bodiesNGK INSULATORS LTD·Filed 1987·Granted Mar 13, 1990·7 cites·10 claims
- 3940US6040099AElectrophotographic photosensitive materialCANON KK·Filed 1996·Granted Mar 21, 2000·6 cites·7 claims
- 4036US4600038AEngine partNGK INSULATORS LTD·Filed 1982·Granted Jul 15, 1986·4 cites·13 claims
- 4135US4865896AComposite joined bodies including an intermediate member having a honeycomb structureNGK INSULATORS LTD·Filed 1988·Granted Sep 12, 1989·7 cites·12 claims
- 4235US4747984AProduction of silicon nitride sintered bodyNGK INSULATORS LTD·Filed 1986·Granted May 31, 1988·4 cites·4 claims
- 4334US6440631B1Process for producing electrophotographic photosensitive memberCANON KK·Filed 1999·Granted Aug 27, 2002·2 cites·17 claims
- 4433US5219693APrinting plate for electrophotographic process comprising trisazo incorporated in an alkali-soluble resin binderIWATSU ELECTRIC CO LTD·Filed 1990·Granted Jun 15, 1993·4 cites·15 claims
- 4533US5213919AProcess for preparation of lithographic printing plate and eluting solution used for said process containing alkali chelating agentIWATSU ELECTRIC CO LTD·Filed 1990·Granted May 25, 1993·4 cites·3 claims
- 4632US6591478B2Method of producing magnetic headALPS ELECTRIC CO LTD·Filed 1999·Granted Jul 15, 2003·1 cites·7 claims
- 4732US4801414AProduction of silicon nitride sintered bodyNGK INSULATORS LTD·Filed 1987·Granted Jan 31, 1989·2 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →