Inventor · disambiguated record
Shigetaka Wada
Also filed as: WADA SHIGETAKA · WATANABE TETSUO
19 granted patents·484 citations·filing 1975–1994
96Inventor score
Top patents by PatentIndex Score
19 records- 0196US4925815ASilicon carbide composite ceramicTOYODA CHUO KENKYUSHO KK·Filed 1989·Granted May 15, 1990·109 cites·3 claims
- 0293US4032752AHeating elements comprising a ptc ceramic article of a honeycomb structure composed of barium titanateNGK INSULATORS LTD·Filed 1976·Granted Jun 28, 1977·61 cites·11 claims
- 0386US4327697AHeater for air-fuel mixture having heating element of positive temperature coefficient resistorNGK INSULATORS LTD·Filed 1980·Granted May 4, 1982·28 cites·25 claims
- 0483US4293514AMethod of producing honeycomb structural bodies consisting of barium titanate series ceramics having a positive temperature coefficient of electric resistanceNGK INSULATORS LTD·Filed 1979·Granted Oct 6, 1981·33 cites·6 claims
- 0582US5034355ATough silicon carbide composite material containing fibrous borideTOYODA CHUO KENKYUSHO KK·Filed 1988·Granted Jul 23, 1991·35 cites·20 claims
- 0681US5108965AMethod of manufacturing a silicon carbide-based materialTOYODA CHUO KENKYUSHO KK·Filed 1991·Granted Apr 28, 1992·34 cites·18 claims
- 0781US4222783ABarium titanate series ceramics having a positive temperature coefficient of electric resistanceNGK INSULATORS LTD·Filed 1979·Granted Sep 16, 1980·23 cites·3 claims
- 0874US4240890AOxygen partial pressure measuring device suitably adapted for internal combustion engine exhaust gasesNGK INSULATORS LTD·Filed 1979·Granted Dec 23, 1980·23 cites·7 claims
- 0971US5104747AJoined assembly of ceramic and metallic materialsTOYODA CHUO KENKYUSHO KK·Filed 1990·Granted Apr 14, 1992·23 cites·8 claims
- 1071US4489232AApparatus for heating a mixed gas on an internal combustion engineNGK INSULATORS LTD·Filed 1981·Granted Dec 18, 1984·24 cites·3 claims
- 1169US4170530AOxygen concentration cell and a method of producing the sameNGK INSULATORS LTD·Filed 1978·Granted Oct 9, 1979·18 cites·4 claims
- 1262US5523268ASilicon nitride sintered bodyTOYODA CHUO KENKYUSHO KK·Filed 1994·Granted Jun 4, 1996·15 cites·9 claims
- 1354US4978645ASilicon nitride sintered bodyTOYODA CHUO KENKYUSHO KK·Filed 1989·Granted Dec 18, 1990·12 cites·8 claims
- 1449US4692099ARotary component of a rotary device for heat engines and a method of manufacturing the sameTOYODA CHUO KENKYUSHO KK·Filed 1986·Granted Sep 8, 1987·10 cites·8 claims
- 1548US5081079ASintered body of silicon nitride and a process for making the sameTOYODA CHUO KENKYUSHO KK·Filed 1990·Granted Jan 14, 1992·9 cites·17 claims
- 1648US5081077AProcess for producing sintered body of metal boride and raw material composition thereforTOYODA CHUO KENKYUSHO KK·Filed 1991·Granted Jan 14, 1992·9 cites·15 claims
- 1746US4055438ABarium titanate ceramicNGK INSULATORS LTD·Filed 1975·Granted Oct 25, 1977·5 cites·12 claims
- 1844US5120682ASintered body of silicon nitrideTOYODA CHUO KENKYUSHO KK·Filed 1990·Granted Jun 9, 1992·7 cites·14 claims
- 1940US4170531AMethod of producing an oxygen concentration cellNGK INSULATORS LTD·Filed 1978·Granted Oct 9, 1979·6 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →