Inventor · disambiguated record
Seiji Hasegawa
Also filed as: HASEGAWA SEIJI · MIYATA KATSUHARU
13 granted patents·134 citations·filing 1976–2015
92Inventor score
Top patents by PatentIndex Score
13 records- 0189US4178455AProcess for preparing aromatic urethanesMITSUI TOATSU CHEMICALS·Filed 1978·Granted Dec 11, 1979·26 cites·38 claims
- 0281US4080365AProcess for preparing aromatic urethanesMITSUI TOATSU CHEMICALS·Filed 1976·Granted Mar 21, 1978·15 cites·9 claims
- 0373US4170708AProcess for preparing aromatic urethanesMITSUI TOATSU CHEMICALS·Filed 1976·Granted Oct 9, 1979·9 cites·11 claims
- 0468US4319018AProcess for producing polymethylene polyphenyl polycarbamatesMITSUI TOATSU CHEMICALS·Filed 1980·Granted Mar 9, 1982·9 cites·20 claims
- 0567US5859123AWater-based fluorine-containing emulsionCENTRAL GLASS CO LTD·Filed 1996·Granted Jan 12, 1999·21 cites·21 claims
- 0664US4227008AProcess for preparing aromatic urethanesMITSUI TOATSU CHEMICALS·Filed 1978·Granted Oct 7, 1980·6 cites·14 claims
- 0756US6268527B1Method for producing benzoic acid derivativesCENTRAL GLASS CO LTD·Filed 1999·Granted Jul 31, 2001·6 cites·22 claims
- 0851US5478918ALow stress polyimide composition and precursor composition solution of sameCENTRAL GLASS CO LTD·Filed 1994·Granted Dec 26, 1995·11 cites·8 claims
- 0946US5686525APolyimide precursor composition and the production of said polyimide precursor compositionCENTRAL GLASS CO LTD·Filed 1996·Granted Nov 11, 1997·12 cites·8 claims
- 1045US4307029AProcess for preparing polymethylene-polyphenyl polyisocyanatesMITSUI TOATSU CHEMICALS·Filed 1980·Granted Dec 22, 1981·7 cites·16 claims
- 1143US10259772B2Agents for maintaining undifferentiated state and promoting proliferation of stem cellsNIPPON MENARD COSMETIC CO LTD·Filed 2015·Granted Apr 16, 2019·0 cites·8 claims
- 1238US5840369APolyimide precursor composition, polyimide composition, process for the production of said polyimide precursor composition, and process for the production of said polymide compositionCENTRAL GLASS CO LTD·Filed 1997·Granted Nov 24, 1998·7 cites·5 claims
- 1335US6166141AFluorine-containing resin for preparing paintCENTRAL GLASS CO LTD·Filed 1997·Granted Dec 26, 2000·5 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →