Inventor · disambiguated record
Yukio Tatsumi
Also filed as: TATSUMI YUKIO
16 granted patents·384 citations·filing 1992–2012
94Inventor score
Top patents by PatentIndex Score
16 records- 0192US5627146ALubricating oil compositionASAHI DENKA KOGYO KK·Filed 1995·Granted May 6, 1997·67 cites·14 claims
- 0291US6245725B1Lubricating compositionsASAHI DENKA KOGYO KK·Filed 1999·Granted Jun 12, 2001·82 cites·5 claims
- 0387US5858931ALubricating compositionASAHI DENKA KOGYO KK·Filed 1996·Granted Jan 12, 1999·49 cites·16 claims
- 0486US5498356ARefrigerant composition containing carbodiimideASAHI DENKA KOGYO KK·Filed 1994·Granted Mar 12, 1996·36 cites·17 claims
- 0585US8722597B2Lubricating oil composition for internal combustion engineTATSUMI YUKIO·Filed 2011·Granted May 13, 2014·5 cites·7 claims
- 0679US5696065AEngine oil compositionASAHI DENKA KOGYO KK·Filed 1995·Granted Dec 9, 1997·36 cites·6 claims
- 0777US5631213AProcess for producing molybdenum oxysulfide dithiocarbamateASAHI DENKA KOGYO KK·Filed 1996·Granted May 20, 1997·33 cites·14 claims
- 0876US9255237B2Lubricating oil additive composition and method for improving storage stability of lubricating oil additive compositionTATSUMI YUKIO·Filed 2012·Granted Feb 9, 2016·3 cites·5 claims
- 0976US6465399B2Lubricant compositionASAHI DENKA KOYGO KABUSHIKI KA·Filed 2001·Granted Oct 15, 2002·21 cites·10 claims
- 1060US5620950ALubricated refrigerant composition containing alicyclic epoxy compoundsASAHI DENKA KOGYO KK·Filed 1995·Granted Apr 15, 1997·18 cites·7 claims
- 1157US8012916B2Phosphorus-molybdenum compound, method for producing same and lubricant additive and lubricant composition containing the compoundADEKA CORP·Filed 2007·Granted Sep 6, 2011·0 cites·7 claims
- 1256US5494608APowdery molybdenum oxysulfide dithiocarbamate composition, a process for producing same, and a grease composition containing the compositionASAHI DENKA KOGYO KK·Filed 1994·Granted Feb 27, 1996·13 cites·13 claims
- 1353US8071801B2Phosphorus molybdenum compound and method for producing sameTATSUMI YUKIO·Filed 2007·Granted Dec 6, 2011·0 cites·3 claims
- 1444US6379581B1Lubricated refrigerant composition containing fluorocarbon-type refrigerant, synthetic oil and molybdenumoxysulfide derivativesASAHI DENKA KOGYO KK·Filed 1995·Granted Apr 30, 2002·10 cites·16 claims
- 1543US5612297APowdery molybdenum oxysulfide dithiocarbamate composition, a process for producing same, and a grease composition containing the compositionASAHI DENKA KOGYO KK·Filed 1995·Granted Mar 18, 1997·9 cites·5 claims
- 1630US6217791B1Refrigerant incorporating a polyoxyalkylene glycol monomethyletherASAHI DENKA KOGYO KK·Filed 1992·Granted Apr 17, 2001·2 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →