Inventor · disambiguated record
Akimichi Yokozeki
Also filed as: YOKOZEKI AKIMICHI
35 granted patents·9 pending applications·768 citations·filing 1987–2014
98Inventor score
Top patents by PatentIndex Score
44 records- 0197US5182040AAzeotropic and azeotrope-like compositions of 1,1,2,2-tetrafluoroethaneDU PONT·Filed 1991·Granted Jan 26, 1993·169 cites·9 claims
- 0295US6783691B1Compositions of difluoromethane, pentafluoroethane, 1,1,1,2-tetrafluoroethane and hydrocarbonsDU PONT·Filed 2000·Granted Aug 31, 2004·99 cites·6 claims
- 0394US7765823B2Hybrid vapor compression-absorption cycleDU PONT·Filed 2006·Granted Aug 3, 2010·24 cites·17 claims
- 0493US8506839B2Absorption cycle utilizing ionic liquids and water as working fluidsSHIFLETT MARK BRANDON·Filed 2006·Granted Aug 13, 2013·21 cites·13 claims
- 0591US8313558B2Process for separation of tetrafluoroethylene from carbon dioxide using ionic liquidsSHIFLETT MARK BRANDON·Filed 2007·Granted Nov 20, 2012·9 cites·10 claims
- 0690US7964760B2Process for the separation of fluorocarbons using ionic liquidsDU PONT·Filed 2008·Granted Jun 21, 2011·8 cites·19 claims
- 0790US5648017AAzeotropic and azeotrope-like compositions of 1,1,2,2-tetrafluoroethane and (iso) butaneDU PONT·Filed 1995·Granted Jul 15, 1997·89 cites·13 claims
- 0887US8715521B2Absorption cycle utilizing ionic liquid as working fluidSHIFLETT MARK BRANDON·Filed 2006·Granted May 6, 2014·13 cites·57 claims
- 0987US5345013ASafe handling of tetrafluoroethyleneDU PONT·Filed 1993·Granted Sep 6, 1994·28 cites·17 claims
- 1085US8707720B2Hybrid vapor compression-absorption cycleSHIFLETT MARK BRANDON·Filed 2010·Granted Apr 29, 2014·5 cites·13 claims
- 1185US8568608B2Vapor compression cycle utilizing ionic liquid as compressor lubricantSHIFLETT MARK BRANDON·Filed 2007·Granted Oct 29, 2013·12 cites·18 claims
- 1285US5277834ANear-azeotropic blends for use as refrigerantsDU PONT·Filed 1992·Granted Jan 11, 1994·49 cites·2 claims
- 1384US6503417B1Ternary compositions of ammonia, pentafluoroethane and difluoromethaneDU PONT·Filed 1999·Granted Jan 7, 2003·55 cites·4 claims
- 1477US8946442B2Foamed ionic compoundsSHIFLETT MARK BRANDON·Filed 2010·Granted Feb 3, 2015·2 cites·19 claims
- 1577US5403504AProcess for heating and cooling using substantially constant boiling compositions of fluorinated hydrocarbonsDU PONT·Filed 1993·Granted Apr 4, 1995·31 cites·2 claims
- 1672US8075777B2Process for the separation of diastereomersSHIFLETT MARK BRANDON·Filed 2008·Granted Dec 13, 2011·2 cites·17 claims
- 1771US8808659B2Process and reactor system for producing ammonia using ionic liquidsSHIFLETT MARK BRANDON·Filed 2011·Granted Aug 19, 2014·1 cites·12 claims
- 1871US5221493AAzeotropic compositions of 1,1,2,2,3,3,4,4-octafluorobutane and alcohols or ketonesDU PONT·Filed 1991·Granted Jun 22, 1993·24 cites·6 claims
- 1969US8771626B2Process for purifying perfluorinated productsSHIFLETT MARK BRANDON·Filed 2007·Granted Jul 8, 2014·1 cites·12 claims
- 2067US4715900AAzeotropic compositions of trichlorotrifluoroethane, dichlorodifluoroethane and methanol/ethanolDU PONT·Filed 1987·Granted Dec 29, 1987·26 cites·10 claims
- 2166US5800730ANear-azeotropic blends for use as refrigerantsDU PONT·Filed 1997·Granted Sep 1, 1998·17 cites·18 claims
- 2266US5616276AAzeotrope-like refrigerants with chlorodifluoromethane, pentafluoroethane, and C2 -C4 hydrocarbonDU PONT·Filed 1995·Granted Apr 1, 1997·17 cites·9 claims
- 2365US8871112B2Compositions comprising 2,3,3,3-tetrafluoropropene and hydrocarbons and uses thereofMINOR BARBARA HAVILAND·Filed 2009·Granted Oct 28, 2014·1 cites·5 claims
- 2461US2014286849A1Mixtures of Ammonia and Ionic LiquidsSHIFLETT MARK BRANDON·Filed 2014·Application pending·0 cites
- 2560US2015007592A1Compositions comprising 2,3,3,3-tetrafluoropropene and hydrocarbons and uses thereofDU PONT·Filed 2014·Application pending·0 cites
- 2659US8628644B2Utilizing ionic liquids for hydrofluorocarbon separationSHIFLETT MARK B·Filed 2006·Granted Jan 14, 2014·2 cites·15 claims
- 2759US5387357AAzeotropic or azeotrope-like compositions of ammonia and hydrofluorocarbonsDU PONT·Filed 1992·Granted Feb 7, 1995·12 cites·4 claims
- 2859US2013327084A1Absorption cycle utilizing ionic liquids and water as working fluidsDU PONT·Filed 2013·Application pending·0 cites
- 2956US5968406AAzeotropic and azeotrope-like compositions of 1,1,2,2-tetrafluoroethaneDU PONT·Filed 1997·Granted Oct 19, 1999·11 cites·4 claims
- 3055US2013231448A1Process for separation of tetrafluoroethylene from carbon dioxide using ionic liquidsDU PONT·Filed 2012·Application pending·0 cites
- 3155US2008153697A1Mixtures of ammonia and ionic liquidsDU PONT·Filed 2006·Application pending·0 cites
- 3253US2012165579A1Process for the separation of fluorocarbons using ionic liquidsSHIFLETT MARK BRANDON·Filed 2011·Application pending·0 cites
- 3353US2010155660A1Mixtures of ammonia and ionic liquidsDU PONT·Filed 2010·Application pending·0 cites
- 3448US5061394AAzeotropic composition of 1-chloro-1,2,2,2-tetrafluoroethane and dimethyl etherDU PONT·Filed 1990·Granted Oct 29, 1991·8 cites·6 claims
- 3548US2010132384A1Heat transfer systems using mixtures of polyols and iconic liquidsDU PONT·Filed 2008·Application pending·0 cites
- 3647US5725791AAzeotropic and azeotrope-like compositions of 1,1,2,2-tetrafluoroethaneDU PONT·Filed 1993·Granted Mar 10, 1998·7 cites·5 claims
- 3746US5516446ACompositions of 1,1,1,2-tetrafluoroethane and dimethyl etherDU PONT·Filed 1994·Granted May 14, 1996·6 cites·7 claims
- 3844US5766503ARefrigeration process using azeotropic compositions of perfluoroethane and trifluoromethaneDU PONT·Filed 1996·Granted Jun 16, 1998·7 cites·3 claims
- 3944US2013061612A1Refrigerant storage in secondary loop refrigeration systemsSHIFLETT MARK BRANDON·Filed 2010·Application pending·0 cites
- 4041US5635099ANear-azeotropic blends for use as refrigerants with pentafluoroethane, trifluoroethane, and tetrafluoroethaneDU PONT·Filed 1995·Granted Jun 3, 1997·4 cites·4 claims
- 4135US5700388AAzeotropic or azeotrope-like compositions of ammonia and tetrafluoroethaneDU PONT·Filed 1994·Granted Dec 23, 1997·2 cites·4 claims
- 4235US5284596ASubstantially constant boiling compositions of 1,1,1,2-tetra-fluoroethane and dimethyl etherDU PONT·Filed 1991·Granted Feb 8, 1994·3 cites·5 claims
- 4332US5447646ACompositions of 2,2-dichloro-1,1,1-trifluoroethane and pentafluoropropaneDU PONT·Filed 1993·Granted Sep 5, 1995·2 cites·3 claims
- 4431US5246617AAzeotropic compositions of 1,1-dichloro-1-fluoroethane and methanol/ethanolDU PONT·Filed 1988·Granted Sep 21, 1993·1 cites·18 claims
Join the waitlist — get patent alerts
Get an alert when Akimichi Yokozeki files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →