Inventor · disambiguated record
Shigeji Obayashi
Also filed as: OBAYASHI SHIGEJI
11 granted patents·1,469 citations·filing 1976–1989
94Inventor score
Files withSEITETSU KAGAKU CO LTD11
Top patents by PatentIndex Score
11 records- 0197US4340706AAlkali metal acrylate or ammonium acrylate polymer excellent in salt solution-absorbency and process for producing sameSEITETSU KAGAKU CO LTD·Filed 1980·Granted Jul 20, 1982·421 cites·25 claims
- 0295US4590227AWater-swellable elastomer compositionSEITETSU KAGAKU CO LTD·Filed 1984·Granted May 20, 1986·202 cites·15 claims
- 0395US4541871AWater-absorbent resin having improved water-absorbency and improved water-dispersibility and process for producing sameSEITETSU KAGAKU CO LTD·Filed 1984·Granted Sep 17, 1985·235 cites·11 claims
- 0493US4863989AWater-absorbent resin compositionSEITETSU KAGAKU CO LTD·Filed 1987·Granted Sep 5, 1989·46 cites·2 claims
- 0593US4507438AWater-absorbent resin having improved water-absorbency and improved water-dispersibility and process for producing sameSEITETSU KAGAKU CO LTD·Filed 1982·Granted Mar 26, 1985·184 cites·16 claims
- 0690US4683274AProcess for producing a water-absorbent resinSEITETSU KAGAKU CO LTD·Filed 1985·Granted Jul 28, 1987·226 cites·10 claims
- 0789US4732968AProcess for granulating a water-absorbent resin employing (a) water (b) inorganic powder & (c) surfactant in an inert solventSEITETSU KAGAKU CO LTD·Filed 1986·Granted Mar 22, 1988·53 cites·11 claims
- 0887US5075373AWater retention material with water-absorbencySEITETSU KAGAKU CO LTD·Filed 1989·Granted Dec 24, 1991·50 cites·2 claims
- 0985US4972019AWater-absorbent resin compositionSEITETSU KAGAKU CO LTD·Filed 1989·Granted Nov 20, 1990·27 cites·3 claims
- 1059US4070305AProcess for regenerating catalystSEITETSU KAGAKU CO LTD·Filed 1976·Granted Jan 24, 1978·18 cites·16 claims
- 1149US4880888AProcess for producing a water-absorbent resinSEITETSU KAGAKU CO LTD·Filed 1987·Granted Nov 14, 1989·7 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →