Inventor · disambiguated record
Kazuhiko Sekizawa
Also filed as: SAKAMOTO TERUHISA · SEKIZAWA KAZUHIKO
21 granted patents·320 citations·filing 1979–1996
96Inventor score
Top patents by PatentIndex Score
21 records- 0193US4250339AProcess for producing methacroleinTOYO SODA MFG CO LTD·Filed 1979·Granted Feb 10, 1981·34 cites·6 claims
- 0286US4982003AMixed oxide catalyst and process for producing an alkylenamine by using the catalystTOSOH CORP·Filed 1988·Granted Jan 1, 1991·21 cites·8 claims
- 0376US5427753AProcess for removing nitrogen oxides from oxygen rich exhaust gasTOSOH CORP·Filed 1993·Granted Jun 27, 1995·35 cites·7 claims
- 0474US5443803ACatalyst for purifying exhaust gasTOYOTA MOTOR CO LTD·Filed 1992·Granted Aug 22, 1995·33 cites·10 claims
- 0573US5208198ACatalyst for purifying exhaust gasTOSOH CORP·Filed 1991·Granted May 4, 1993·26 cites·16 claims
- 0672US4463105AProcess for producing oxygen-containing hydrocarbon compoundsSAGAMI CHEM RES·Filed 1982·Granted Jul 31, 1984·11 cites·10 claims
- 0766US4861929AProcess for producing halogenated benzene derivative using zeolite catalystTOSOH CORP·Filed 1986·Granted Aug 29, 1989·8 cites·8 claims
- 0866US4849560AProcess for preparation of halogenated benzene derivativesTOYO SODA MFG CO LTD·Filed 1988·Granted Jul 18, 1989·8 cites·12 claims
- 0964US5382416AMethod for purifying exhaust gasTOSOH CORP·Filed 1994·Granted Jan 17, 1995·21 cites·16 claims
- 1060US5206196ACatalyst for purifying exhaust gasTOSOH CORP·Filed 1991·Granted Apr 27, 1993·22 cites·16 claims
- 1158US5695728AMethod for removal of nitrogen oxidesTOSOH CORP·Filed 1996·Granted Dec 9, 1997·20 cites·15 claims
- 1253US5374409APurifying gases with an alkali metal and transition metal containing zeoliteTOSOH CORP·Filed 1991·Granted Dec 20, 1994·12 cites·4 claims
- 1349US4792644APreparation of halogenated benzene derivativesTOSOH CORP·Filed 1987·Granted Dec 20, 1988·3 cites·13 claims
- 1448US5807528ACatalyst for purifying exhaust gasTOSOH CORP·Filed 1993·Granted Sep 15, 1998·17 cites·3 claims
- 1547US5449504AProcess for removing nitrogen oxides from oxygen rich exhaust gasTOSOH CORP·Filed 1993·Granted Sep 12, 1995·15 cites·3 claims
- 1647US4914247AProcess for preparing para-substituted halogenobenzene derivativesTOYO SODA MFG CO LTD·Filed 1989·Granted Apr 3, 1990·9 cites·12 claims
- 1746US5236879ACatalyst for purifying exhaust gasTOSOH CORP·Filed 1991·Granted Aug 17, 1993·16 cites·6 claims
- 1840US5073649AProcess for producing a polyalkylene polyamineTOSOH CORP·Filed 1989·Granted Dec 17, 1991·1 cites·7 claims
- 1940US5001289AShaped zeolite catalyst for liquid phase organic reactionsTOSOH CORP·Filed 1989·Granted Mar 19, 1991·6 cites·11 claims
- 2038US5149877AProcess for producing alkylenamineTOSOH CORP·Filed 1990·Granted Sep 22, 1992·1 cites·4 claims
- 2138US4740641AProducing a halogenated benzene derivative using zeolite catalyst treated with alkali solution of pH 11 or moreTOSOH CORP·Filed 1986·Granted Apr 26, 1988·1 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →