Inventor · disambiguated record
Keizo Nakajima
Also filed as: NAKAJIMA KEIZO
17 granted patents·5 pending applications·238 citations·filing 1989–2013
94Inventor score
Top patents by PatentIndex Score
22 records- 0191US7675004B2Heating element and production method thereofPANASONIC CORP·Filed 2005·Granted Mar 9, 2010·29 cites·50 claims
- 0279US5718119ARefrigeration system and method of installing sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Feb 17, 1998·39 cites·7 claims
- 0377US5842349ARefrigeration system and method of installing sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Dec 1, 1998·35 cites·8 claims
- 0474US6336601B1Method for separating metallic material from waste printed circuit boards, and dry distillation apparatus used for waste treatmentMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Jan 8, 2002·21 cites·51 claims
- 0573US7435772B2Method and apparatus for removing additives from thermoplastic resin compositionMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2007·Granted Oct 14, 2008·1 cites·13 claims
- 0673US7235219B2Method and apparatus for removing additives from thermoplastic resin compositionMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Jun 26, 2007·9 cites·4 claims
- 0772US6523764B2Method for separating metallic from waste printed circuit boards, and dry distillation apparatus used for waste treatmentMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Feb 25, 2003·13 cites·18 claims
- 0869US8519305B2Polymer heating elementNAKAJIMA KEIZO·Filed 2009·Granted Aug 27, 2013·5 cites·20 claims
- 0969US5119221ALiquid crystal display device comprising improved alignment layers for liquid crystalMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1989·Granted Jun 2, 1992·27 cites·17 claims
- 1063US5173342ALiquid crystal orientation film and process for making the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1990·Granted Dec 22, 1992·17 cites·4 claims
- 1160US6388050B1Method for treating thermoplastic resin composition containing flame retardantMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted May 14, 2002·4 cites·7 claims
- 1258US6903242B2Method for dehalogenation treatment of halogen containing non-combustible resin compositionMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jun 7, 2005·2 cites·23 claims
- 1354US2013277359A1Ptc resistorPANASONIC CORP·Filed 2013·Application pending·0 cites
- 1453US6429284B2Method for treating flame retardant resin compositionMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Aug 6, 2002·1 cites·6 claims
- 1552US6268317B1Working fluid for refrigerating cycle equipment and the refrigerating cycle equipment using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Jul 31, 2001·12 cites·15 claims
- 1652US6197211B1Ketone-containing working fluid for refrigerating cycle equipment and refrigerating cycle equipment having the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Mar 6, 2001·12 cites·7 claims
- 1751US2010038356A1Sheet heating elementPANASONIC CORP·Filed 2008·Application pending·0 cites
- 1851US2010038357A1Ptc resistorPANASONIC CORP·Filed 2008·Application pending·0 cites
- 1945US2003018161A1Method for treating flame retardant resin compositionMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Application pending·0 cites
- 2043US5813240AMethod for constructing a refrigerating cycle including a process of removing oxygenMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Sep 29, 1998·11 cites·26 claims
- 2143US2009051196A1Sheet heating element and seat making use of the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Application pending·0 cites
- 2226US5357017AMacrocyclic poly-conjugated system and macrocyclic poly-conjugated compositionMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Oct 18, 1994·0 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →