Inventor · disambiguated record
Hisatsugu Kaji
Also filed as: KAJI HISATSUGU · OZAKI KIYOJI
24 granted patents·463 citations·filing 1978–1987
97Inventor score
Top patents by PatentIndex Score
24 records- 0184US4522895AMultilayer fuel cell electrode substrate having elongated holes for feeding reactant gasesKUREHA CHEMICAL IND CO LTD·Filed 1983·Granted Jun 11, 1985·39 cites·14 claims
- 0283US4818640ACarbonaceous composite product produced by joining carbonaceous materials together by tetrafluoroethylene resin, and process for producing the sameKUREHA CHEMICAL IND CO LTD·Filed 1986·Granted Apr 4, 1989·40 cites·11 claims
- 0382US4506028AProcess for preparing a fuel cell electrode substrate comprising carbon fibersKUREHA CHEMICAL IND CO LTD·Filed 1982·Granted Mar 19, 1985·40 cites·4 claims
- 0482US4314981AMethod for preparing carbon fibersKUREHA CHEMICAL IND CO LTD·Filed 1979·Granted Feb 9, 1982·23 cites·17 claims
- 0581US4434206AShaped articles of porous carbon fibersKUREHA CHEMICAL IND CO LTD·Filed 1982·Granted Feb 28, 1984·34 cites·10 claims
- 0676US4420443AMethod for producing spherical particles of carbon and of activated carbonKUREHA CHEMICAL IND CO LTD·Filed 1982·Granted Dec 13, 1983·21 cites·3 claims
- 0775US4340464AMethod for thermal cracking of heavy petroleum oilKUREHA CHEMICAL IND CO LTD·Filed 1980·Granted Jul 20, 1982·21 cites·3 claims
- 0873US4389387AMethod for preparing carbon fibersKUREHA CHEMICAL IND CO LTD·Filed 1981·Granted Jun 21, 1983·17 cites·5 claims
- 0969US4729910AReinforced flexible graphite sheetKUREHA CHEMICAL IND CO LTD·Filed 1985·Granted Mar 8, 1988·29 cites·7 claims
- 1067US4567086ACarbonaceous, five-layer fuel cell electrode substrate with elongated holes for feeding reactant gasesKUREHA CHEMICAL IND CO LTD·Filed 1985·Granted Jan 28, 1986·23 cites·5 claims
- 1166US4664988AFuel cell electrode substrate incorporating separator as an intercooler and process for preparation thereofKUREHA CHEMICAL IND CO LTD·Filed 1985·Granted May 12, 1987·23 cites·13 claims
- 1265US4579789ACarbonaceous fuel cell electrode substrate incorporating three-layer separator, and process for preparation thereofKUREHA CHEMICAL IND CO LTD·Filed 1985·Granted Apr 1, 1986·21 cites·11 claims
- 1365US4214979AMethod of thermally cracking heavy petroleum oilCHIYODA CHEM ENG CONSTRUCT CO·Filed 1978·Granted Jul 29, 1980·17 cites·3 claims
- 1460US4730418AAbrasing apparatus using magnetic abrasive powderKUREHA CHEMICAL IND CO LTD·Filed 1986·Granted Mar 15, 1988·13 cites·5 claims
- 1554US4743519AFuel cell electrode substrate provided with peripheral sealersKUREHA CHEMICAL IND CO LTD·Filed 1986·Granted May 10, 1988·17 cites·8 claims
- 1654US4686072AProcess for preparing a carbonaceous five-layer fuel cell electrode substrate with elongated holes for feeding reactant gasesKUREHA CHEMICAL IND CO LTD·Filed 1985·Granted Aug 11, 1987·14 cites·24 claims
- 1754US4580337AProcess for producing electrode substrate for fuel cellsKUREHA CHEMICAL IND CO LTD·Filed 1985·Granted Apr 8, 1986·16 cites·8 claims
- 1852US4956131AFuel cell electrode substrate incorporating separator as an intercooler and process for preparation thereofKUREHA CHEMICAL IND CO LTD·Filed 1987·Granted Sep 11, 1990·14 cites·23 claims
- 1951US4794043ACarbon product comprising carbonaceous materials joined together, said carbon product for electrode substrate of fuel cells and process for production thereofKUREHA CHEMICAL IND CO LTD·Filed 1986·Granted Dec 27, 1988·11 cites·17 claims
- 2051US4265869AMethod of and apparatus for making pitch fiber infusibleKUREHA CHEMICAL IND CO LTD·Filed 1979·Granted May 5, 1981·6 cites·2 claims
- 2145US4778736AElectrode substrate provided with manifold, for a fuel cell and process for producing the sameKUREHA CHEMICAL IND CO LTD·Filed 1986·Granted Oct 18, 1988·11 cites·2 claims
- 2241US4855092AProcess for preparing a carbonaceous fuel cell electrode substrate incorporating three-layer separatorKUREHA CHEMICAL IND CO LTD·Filed 1985·Granted Aug 8, 1989·8 cites·24 claims
- 2334US4175708AMethod of transporting liquid pitch containing lumpy cokes and apparatus thereforKUREHA CHEMICAL IND CO LTD·Filed 1978·Granted Nov 27, 1979·4 cites·8 claims
- 2428US4283369AApparatus for making pitch fiber infusibleKUREHA CHEMICAL IND CO LTD·Filed 1980·Granted Aug 11, 1981·1 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →