Inventor
HASEGAWA MASAZUMI
JP10 patents
⚠️ This page may combine multiple inventors who share the name “HASEGAWA MASAZUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOSOH CORP
4 patentsUS5677380AOct 14, 1997
Planarizing material and planarizing method
TOSOH CORP19 citations90
US5290899AMar 1, 1994
Photosensitive material having a silicon-containing polymer
TOSOH CORP16 citations73
US5057396AOct 15, 1991
Photosensitive material having a silicon-containing polymer
TOSOH CORP14 citations73
US5183722AFeb 2, 1993
Positive photosensitive composition for forming lenses containing 1,2-naphthoquinone diazide sulfonate photosensitizer, alkali-soluble resin and thermosetting agent and process for producing the composition
TOSOH CORP12 citations67
TOYO SODA MFG CO LTD
4 patentsUS4638016AJan 20, 1987
Process for producing high density elastic polyurethane using a combination of 4-methyl-1-(2-dimethylaminoethyl) piperazine together with another tertiary amine catalyst
TOYO SODA MFG CO LTD10 citations73
US4590223AMay 20, 1986
Producing polyurethanes using hydroxy-alkyl piperazine catalyst compositions
TOYO SODA MFG CO LTD16 citations73
US5223376AJun 29, 1993
Method for producing fine patterns utilizing specific polymeric diazonium salt, or diazonium salt/sulfone group containing polymer, as photobleachable agent
TOYO SODA MFG CO LTD8 citations71
US4701473AOct 20, 1987
Catalyst for producing polyurethane foams coated with skin
TOYO SODA MFG CO LTD7 citations69