Inventor
HASEGAWA SEIJI
JP14 patents
⚠️ This page may combine multiple inventors who share the name “HASEGAWA SEIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CENTRAL GLASS CO LTD
6 patentsUS5859123AJan 12, 1999
Water-based fluorine-containing emulsion
CENTRAL GLASS CO LTD21 citations92
US5840369ANov 24, 1998
Polyimide precursor composition, polyimide composition, process for the production of said polyimide precursor composition, and process for the production of said polymide composition
CENTRAL GLASS CO LTD7 citations72
US5686525ANov 11, 1997
Polyimide precursor composition and the production of said polyimide precursor composition
CENTRAL GLASS CO LTD12 citations72
US5478918ADec 26, 1995
Low stress polyimide composition and precursor composition solution of same
CENTRAL GLASS CO LTD11 citations72
US6166141ADec 26, 2000
Fluorine-containing resin for preparing paint
CENTRAL GLASS CO LTD5 citations63
US6268527B1Jul 31, 2001
Method for producing benzoic acid derivatives
CENTRAL GLASS CO LTD6 citations61
MITSUI TOATSU CHEMICALS
6 patentsUS4178455ADec 11, 1979
Process for preparing aromatic urethanes
MITSUI TOATSU CHEMICALS26 citations81
US4319018AMar 9, 1982
Process for producing polymethylene polyphenyl polycarbamates
MITSUI TOATSU CHEMICALS9 citations73
US4307029ADec 22, 1981
Process for preparing polymethylene-polyphenyl polyisocyanates
MITSUI TOATSU CHEMICALS7 citations73
US4170708AOct 9, 1979
Process for preparing aromatic urethanes
MITSUI TOATSU CHEMICALS9 citations73
US4080365AMar 21, 1978
Process for preparing aromatic urethanes
MITSUI TOATSU CHEMICALS15 citations73
US4227008AOct 7, 1980
Process for preparing aromatic urethanes
MITSUI TOATSU CHEMICALS6 citations60