Inventor · disambiguated record
Haruo Doi
Also filed as: DOI HARUO
21 granted patents·614 citations·filing 1974–1996
96Inventor score
Top patents by PatentIndex Score
21 records- 0198US4472538AComposite material composed of clay mineral and organic high polymer and method for producing the sameTOYODA CHUO KENKYUSHO KK·Filed 1981·Granted Sep 18, 1984·156 cites·9 claims
- 0293US4435512AProcess for producing cordierite ceramic productsNIPPON DENSO CO·Filed 1981·Granted Mar 6, 1984·68 cites·3 claims
- 0386US4697325AMethod for joining ceramic parts to metallic partsTOYODA CHUO KENKYUSHO KK·Filed 1987·Granted Oct 6, 1987·32 cites·13 claims
- 0486US4661316AHeat-resistant alloy based on intermetallic compound TiAlNAT RES INST METALS·Filed 1985·Granted Apr 28, 1987·57 cites·4 claims
- 0583US3967230AResistor built-in spark plugNIPPON DENSO CO·Filed 1974·Granted Jun 29, 1976·28 cites·12 claims
- 0682US4003976AConverter for the purification of exhaust gasesTOYODA CHUO KENKYUSHO KK·Filed 1975·Granted Jan 18, 1977·38 cites·16 claims
- 0780US4824262AUnlubricated sliding memberTOYODA CHUO KENKYUSHO KK·Filed 1987·Granted Apr 25, 1989·37 cites·12 claims
- 0875US4384989ASemiconductive barium titanateTOYODA CHUO KENKYUSHO KK·Filed 1982·Granted May 24, 1983·26 cites·11 claims
- 0969US5762894AProcess for producing composite oxide powder containing cerium and zirconiumTOYODA CHUO KENKYUSHO KK·Filed 1995·Granted Jun 9, 1998·31 cites·13 claims
- 1068US4483839AProcess for producing silicon nitrideTOYODA CHUO KENKYUSHO KK·Filed 1983·Granted Nov 20, 1984·13 cites·6 claims
- 1166US4497869AFormed product of vermiculite and method for producing the sameTOYODA CHUO KENKYUSHO KK·Filed 1983·Granted Feb 5, 1985·18 cites·23 claims
- 1262US4486235AClay mineral sheetTOYODA CHUO KENKYUSHO KK·Filed 1983·Granted Dec 4, 1984·16 cites·6 claims
- 1355US4521236AMethod for preparation of porous glass filmTOYODA CHUO KENKYUSHO KK·Filed 1983·Granted Jun 4, 1985·15 cites·9 claims
- 1451US4673587AMethod of producing a composite ceramic bodyTOYODA CHUO KENKYUSHO KK·Filed 1986·Granted Jun 16, 1987·13 cites·3 claims
- 1550US5352337AMethod for reducing nitrogen oxidesTOYODA CHUO KENKYUSHO KK·Filed 1993·Granted Oct 4, 1994·17 cites·27 claims
- 1647US5686377ACatalyst for purifying exhaust gasesTOYODA CHUO KENKYUSHO KK·Filed 1996·Granted Nov 11, 1997·12 cites·8 claims
- 1747US4774103AMethod of reinforcing a ceramic body of silicon carbideTOYODA CHUO KENKYUSHO KK·Filed 1986·Granted Sep 27, 1988·9 cites·6 claims
- 1847US4645115AMethod of bonding ceramic articleTOYODA CHUO KENKYUSHO KK·Filed 1985·Granted Feb 24, 1987·9 cites·13 claims
- 1946US4987106AProcess for producing clay mineral of chain structureTOYODA CHUO KENKYUSHO KK·Filed 1989·Granted Jan 22, 1991·9 cites·14 claims
- 2037US4678678AMethod of strengthening ceramicsTOYODA CHUO KENKYUSHO KK·Filed 1985·Granted Jul 7, 1987·7 cites·11 claims
- 2130US5542992ATial base alloy having high strength performance at high temperatureNAT RES INST METALS·Filed 1995·Granted Aug 6, 1996·3 cites·3 claims
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