Inventor · disambiguated record
Katsuhiko Kawakami
Also filed as: KAWAKAMI KATSUHIKO · NAKAMOTO YUKIMASA
14 granted patents·238 citations·filing 1975–2016
92Inventor score
Top patents by PatentIndex Score
14 records- 0195US5413629ALaser marking and printing ink thereforDAINIPPON INK & CHEMICALS·Filed 1993·Granted May 9, 1995·111 cites·23 claims
- 0289US7959870B2Separator and unloading deviceSOFTARD IND CO LTD·Filed 2009·Granted Jun 14, 2011·25 cites·6 claims
- 0370US6203766B1Dumping device of catalyst inside reactor and dumping method using the sameSOFTARD IND CO LTD·Filed 1999·Granted Mar 20, 2001·37 cites·9 claims
- 0461US4031031AMethod for treating catalyst used for catalytic reactions of hydrocarbons at the time of catalyst removalNIPPON MINING CO·Filed 1975·Granted Jun 21, 1977·14 cites·10 claims
- 0560US6814945B2Dumping device of catalyst inside reactor and dumping method using the sameSOFTARD IND CO LTD·Filed 2001·Granted Nov 9, 2004·4 cites·1 claims
- 0656US6273102B1Method of cleaning and maintaining petroleum refining plantsSOFTARD IND CO LTD·Filed 1999·Granted Aug 14, 2001·18 cites·7 claims
- 0755US4155875AMethod of softening caked catalystNIPPON MINING CO·Filed 1977·Granted May 22, 1979·11 cites·15 claims
- 0852US9586189B2Catalyst loading device and catalyst loading methodSOFTARD IND CO LTD·Filed 2016·Granted Mar 7, 2017·0 cites·8 claims
- 0946US7112311B2Cooling method of hydrotreating plant and cooling unit thereforSOFTARD IND CO LTD·Filed 2001·Granted Sep 26, 2006·3 cites·12 claims
- 1038US4135013AMethod for the prevention of stress corrosion crackingNIPPON MINING CO·Filed 1977·Granted Jan 16, 1979·5 cites·6 claims
- 1131US4268414AMethod for removing and treating waste catalystNIPPON MINING CO·Filed 1979·Granted May 19, 1981·3 cites·10 claims
- 1229US10130978B2Cleaning method of oil tank and cleaning device of sameSOFTARD IND CO LTD·Filed 2015·Granted Nov 20, 2018·0 cites·7 claims
- 1329US4912071AMethod of unloading catalystKASHIMA ENGINEERING CO LTD·Filed 1987·Granted Mar 27, 1990·7 cites·16 claims
- 1427US5736108ARefrigerant unit in hydrogen treating plantSOFTARD IND CO LTD·Filed 1996·Granted Apr 7, 1998·0 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →