Inventor
KAJI HISATSUGU
JP24 patents
⚠️ This page may combine multiple inventors who share the name “KAJI HISATSUGU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KUREHA CHEMICAL IND CO LTD
23 patentsUS4818640AApr 4, 1989
Carbonaceous composite product produced by joining carbonaceous materials together by tetrafluoroethylene resin, and process for producing the same
KUREHA CHEMICAL IND CO LTD40 citations92
US4729910AMar 8, 1988
Reinforced flexible graphite sheet
KUREHA CHEMICAL IND CO LTD29 citations92
US4522895AJun 11, 1985
Multilayer fuel cell electrode substrate having elongated holes for feeding reactant gases
KUREHA CHEMICAL IND CO LTD39 citations92
US4434206AFeb 28, 1984
Shaped articles of porous carbon fibers
KUREHA CHEMICAL IND CO LTD34 citations92
US4506028AMar 19, 1985
Process for preparing a fuel cell electrode substrate comprising carbon fibers
KUREHA CHEMICAL IND CO LTD40 citations89
US4664988AMay 12, 1987
Fuel cell electrode substrate incorporating separator as an intercooler and process for preparation thereof
KUREHA CHEMICAL IND CO LTD23 citations82
US4579789AApr 1, 1986
Carbonaceous fuel cell electrode substrate incorporating three-layer separator, and process for preparation thereof
KUREHA CHEMICAL IND CO LTD21 citations82
US4567086AJan 28, 1986
Carbonaceous, five-layer fuel cell electrode substrate with elongated holes for feeding reactant gases
KUREHA CHEMICAL IND CO LTD23 citations82
US4420443ADec 13, 1983
Method for producing spherical particles of carbon and of activated carbon
KUREHA CHEMICAL IND CO LTD21 citations82
US4340464AJul 20, 1982
Method for thermal cracking of heavy petroleum oil
KUREHA CHEMICAL IND CO LTD21 citations80
US4314981AFeb 9, 1982
Method for preparing carbon fibers
KUREHA CHEMICAL IND CO LTD23 citations80
US4956131ASep 11, 1990
Fuel cell electrode substrate incorporating separator as an intercooler and process for preparation thereof
KUREHA CHEMICAL IND CO LTD14 citations74
US4855092AAug 8, 1989
Process for preparing a carbonaceous fuel cell electrode substrate incorporating three-layer separator
KUREHA CHEMICAL IND CO LTD8 citations74
US4686072AAug 11, 1987
Process for preparing a carbonaceous five-layer fuel cell electrode substrate with elongated holes for feeding reactant gases
KUREHA CHEMICAL IND CO LTD14 citations74
US4580337AApr 8, 1986
Process for producing electrode substrate for fuel cells
KUREHA CHEMICAL IND CO LTD16 citations74
US4794043ADec 27, 1988
Carbon product comprising carbonaceous materials joined together, said carbon product for electrode substrate of fuel cells and process for production thereof
KUREHA CHEMICAL IND CO LTD11 citations73
US4778736AOct 18, 1988
Electrode substrate provided with manifold, for a fuel cell and process for producing the same
KUREHA CHEMICAL IND CO LTD11 citations73
US4743519AMay 10, 1988
Fuel cell electrode substrate provided with peripheral sealers
KUREHA CHEMICAL IND CO LTD17 citations73
US4730418AMar 15, 1988
Abrasing apparatus using magnetic abrasive powder
KUREHA CHEMICAL IND CO LTD13 citations73
US4389387AJun 21, 1983
Method for preparing carbon fibers
KUREHA CHEMICAL IND CO LTD17 citations71
US4265869AMay 5, 1981
Method of and apparatus for making pitch fiber infusible
KUREHA CHEMICAL IND CO LTD6 citations68
US4175708ANov 27, 1979
Method of transporting liquid pitch containing lumpy cokes and apparatus therefor
KUREHA CHEMICAL IND CO LTD4 citations60
US4283369AAug 11, 1981
Apparatus for making pitch fiber infusible
KUREHA CHEMICAL IND CO LTD1 citations46