Inventor
HARA SHIGEYOSHI
JP34 patents
⚠️ This page may combine multiple inventors who share the name “HARA SHIGEYOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TEIJIN LTD
19 patentsUS4764427AAug 16, 1988
Fiber having thermoplastic resin coating
TEIJIN LTD65 citations96
US4353802AOct 12, 1982
Semipermeable composite membrane
TEIJIN LTD121 citations96
US4302336ANov 24, 1981
Semipermeable composite membrane
TEIJIN LTD149 citations96
US4360434ANov 23, 1982
Amphoteric ion-permeable composite membrane
TEIJIN LTD78 citations95
US4242208ADec 30, 1980
Semipermeable composite membrane and process for preparation thereof
TEIJIN LTD41 citations92
US3951920AApr 20, 1976
Permselective polymeric membrane prepared from polybenzimidazoles
TEIJIN LTD43 citations92
US4086209AApr 25, 1978
Novel nitrogen-containing aromatic polymers and process for their preparation
TEIJIN LTD57 citations91
US4137221AJan 30, 1979
Heat-curable and solvent-soluble ester group-containing polymer compositions and process for their preparation
TEIJIN LTD12 citations79
US4760124AJul 26, 1988
Crystalline polyester-imide, process for production thereof, and use thereof
TEIJIN LTD9 citations74
US4220563ASep 2, 1980
Heat-curable and solvent-soluble ester group-containing polymer compositions and process for their preparation
TEIJIN LTD5 citations74
US3946033AMar 23, 1976
Process for the preparation of hydantoin derivatives
TEIJIN LTD14 citations74
US4251649AFeb 17, 1981
Heat-curable and solvent-soluble ester group-containing polymer compositions and process for their preparation
TEIJIN LTD9 citations71
US4218247AAug 19, 1980
Photoconductive resin containing tertiary amino groups for electrophotography
TEIJIN LTD8 citations69
US5068307ANov 26, 1991
Polyamideimides containing 3,4'-diamino-diphenylether as diamine component and process for preparing the same
TEIJIN LTD4 citations63
US4902740AFeb 20, 1990
Polyamideimides containing 3,4'-diamino-diphenylether as diamine component, with plasticizer
TEIJIN LTD2 citations63
US4900799AFeb 13, 1990
Metathesis polymerization of cycloolefins
TEIJIN LTD5 citations62
US4085090AApr 18, 1978
Aromatic polymers containing a nitrogen-containing ring group, and process for preparation thereof
TEIJIN LTD6 citations61
US4296218AOct 20, 1981
Heat-curable and solvent-soluble ester group-containing polymer compositions and process for their preparation
TEIJIN LTD1 citations60
US4069206AJan 17, 1978
Novel aromatic imine polymers and process for the preparation thereof
TEIJIN LTD1 citations51
HERCULES INC
14 patentsUS5096644AMar 17, 1992
Process for making a filled metathesis polymer article
HERCULES INC56 citations94
US5055499AOct 8, 1991
Molded polymer article filled with inorganic material and production of said article
HERCULES INC36 citations91
US5068296ANov 26, 1991
Metathesis polymerized cross-linked copolymer
HERCULES INC6 citations73
US5064919ANov 12, 1991
Metathesis polymerization of cycloolefins
HERCULES INC15 citations73
US4994535AFeb 19, 1991
Metathesis polymerization cross-linked halogen-containing copolymer
HERCULES INC15 citations73
US4923943AMay 8, 1990
Metathesis polymerized copolymer
HERCULES INC11 citations73
US5069943ADec 3, 1991
Process for producing modified molded polymer article
HERCULES INC10 citations71
US4918138AApr 17, 1990
Process for producing a colored molded article of metathesis polymerized polymer
HERCULES INC11 citations71
US5019620AMay 28, 1991
Elastic crosslinked metathesis polymer composition
HERCULES INC3 citations62
US5015710AMay 14, 1991
Process for producing a blended metathesis/radical polymer composition
HERCULES INC4 citations62
US5006616AApr 9, 1991
Metathesis polymerized copolymer
HERCULES INC3 citations62
US5061521AOct 29, 1991
Process for producing modified molded polymer articles
HERCULES INC6 citations60
US5045362ASep 3, 1991
Process for producing modified molded polymer article
HERCULES INC2 citations60
US5017647AMay 21, 1991
Black-pigmented polymeric compositions of matter
HERCULES INC1 citations43