Inventor · disambiguated record
Fumito Nakajima
Also filed as: NAKAJIMA FUMITO · TAKEUCHI MASATO · UNO SHIGEO · YAMASHITA HISAO
49 granted patents·2 pending applications·1,345 citations·filing 1973–2022
99Inventor score
Files withHITACHI LTD21BABCOCK HITACHI KK13NIPPON TELEGRAPH & TELEPHONE11MITSUBISHI PETROCHEMICAL CO3HITACHI LTD AND BABCOCK HITACH1
Top patents by PatentIndex Score
51 records- 0198US4085193ACatalytic process for reducing nitrogen oxides to nitrogenMITSUBISHI PETROCHEMICAL CO·Filed 1974·Granted Apr 18, 1978·241 cites·9 claims
- 0297US4178270AMethod for supporting hydrous metal oxide on carrierHITACHI LTD·Filed 1978·Granted Dec 11, 1979·59 cites·10 claims
- 0394US4060498AProcess for steam reforming of hydrocarbonsHITACHI LTD·Filed 1974·Granted Nov 29, 1977·48 cites·10 claims
- 0492US3977836AMethod and apparatus for determining ammonia concentration of gasHITACHI LTD·Filed 1975·Granted Aug 31, 1976·50 cites·13 claims
- 0591US5648048AWet-type flue gas desulfurization plantBABCOCK HITACHI KK·Filed 1994·Granted Jul 15, 1997·101 cites·32 claims
- 0691US4187282AProcess for treating a waste gas containing sulfur oxidesBABCOCK HITACHI KK·Filed 1977·Granted Feb 5, 1980·50 cites·18 claims
- 0790US4206036AHydrodesulfurization of hydrocarbon oil with a catalyst including titanium oxideHITACHI LTD·Filed 1978·Granted Jun 3, 1980·46 cites·15 claims
- 0890US4112297AInterface for use in a combined liquid chromatography - mass spectrometry systemHITACHI LTD·Filed 1977·Granted Sep 5, 1978·48 cites·7 claims
- 0989US4407905AFuel cellHITACHI LTD·Filed 1981·Granted Oct 4, 1983·52 cites·32 claims
- 1086US4351811AProcess for reducing an eliminating nitrogen oxides in an exhaust gasHITACHI LTD·Filed 1978·Granted Sep 28, 1982·44 cites·15 claims
- 1184US5409681ACatalyst for purifying exhaust gasBABCOCK HITACHI KK·Filed 1992·Granted Apr 25, 1995·60 cites·14 claims
- 1284US4107272AProcess for removing nitrogen oxides using ammonia as a reductant and sulfated metallic catalystsHITACHI LTD·Filed 1977·Granted Aug 15, 1978·42 cites·20 claims
- 1383US8575650B2Avalanche photodiodeISHIBASHI TADAO·Filed 2009·Granted Nov 5, 2013·8 cites·5 claims
- 1482US4081509AMethod for removing nitrogen oxides from flue gas by absorptionHITACHI LTD·Filed 1976·Granted Mar 28, 1978·36 cites·17 claims
- 1580US4138469AProcess for catalytically treating exhaust gas containing NOx in the presence of ammonia gasMITSUBISHI PETROCHEMICAL CO·Filed 1977·Granted Feb 6, 1979·32 cites·26 claims
- 1679US4141959AProcess for removing nitrogen oxides from combustion flue gasHITACHI LTD AND BABCOCK HITACH·Filed 1977·Granted Feb 27, 1979·24 cites·5 claims
- 1778US4207209ASintered cataltyic or absorbent metallic product and method for sintering metallic powdersHITACHI LTD·Filed 1978·Granted Jun 10, 1980·25 cites·24 claims
- 1877US4081510AProcess for catalytically treating an exhaust gas containing ammonia gas and oxygen gas to reduce said ammonia gas to nitrogenHITACHI LTD·Filed 1976·Granted Mar 28, 1978·30 cites·19 claims
- 1975US4003711AApparatus for elimination of nitrogen oxides from combustion waste gasesHITACHI LTD·Filed 1974·Granted Jan 18, 1977·28 cites·10 claims
- 2074US4350670AProcess for treating flue gasHITACHI LTD·Filed 1980·Granted Sep 21, 1982·20 cites·7 claims
- 2172US5686053AWet-type flue gas desulfurization plant and method making use of a solid desulfurizing agentBABCOCK HITACHI KK·Filed 1995·Granted Nov 11, 1997·35 cites·28 claims
- 2272US4085194AWaste flue gas desulfurizing methodHITACHI LTD·Filed 1973·Granted Apr 18, 1978·26 cites·20 claims
- 2370US5788944AWet-type flue gas desulfurization plant and method making use of a solid desulfurizing agentBABCOCK HITACHI KK·Filed 1995·Granted Aug 4, 1998·39 cites·22 claims
- 2468US4038060AApparatus for treating an exhaust gas from nuclear plantHITACHI LTD·Filed 1975·Granted Jul 26, 1977·20 cites·3 claims
- 2566US4952548ACatalyst for removing nitrogen oxidesBABCOCK HITACHI KK·Filed 1988·Granted Aug 28, 1990·21 cites·4 claims
- 2663US4436794AMolten carbonate fuel cellHITACHI LTD·Filed 1982·Granted Mar 13, 1984·18 cites·15 claims
- 2762US4456528AProcess for removing ash from coalHITACHI LTD·Filed 1981·Granted Jun 26, 1984·17 cites·11 claims
- 2862US4341753AMethod and apparatus for converting sulfur dioxide in gas to sulfurHITACHI LTD·Filed 1980·Granted Jul 27, 1982·13 cites·3 claims
- 2961US11749773B2Avalanche photodiode and method for manufacturing sameNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Sep 5, 2023·0 cites·11 claims
- 3060US11264519B2Light-receiving element and method for manufacturing elementNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Mar 1, 2022·0 cites·6 claims
- 3156US4043945AMethod of producing thin layer methanation reaction catalystHITACHI LTD·Filed 1975·Granted Aug 23, 1977·11 cites·12 claims
- 3255US12034090B2Semiconductor light receiving elementNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Jul 9, 2024·0 cites·8 claims
- 3355US5059576ACatalyst for removing nitrogen oxides and a process for producing the sameBABCOCK HITACHI KK·Filed 1990·Granted Oct 22, 1991·16 cites·10 claims
- 3455US4865827AProcess for removing nitrogen oxidesBABCOCK HITACHI KK·Filed 1988·Granted Sep 12, 1989·13 cites·12 claims
- 3553US4427642AProcess for dry desulfurization of flue gasBABCOCK HITACHI KK·Filed 1982·Granted Jan 24, 1984·14 cites·17 claims
- 3652US4946661AProcess for removing nitrogen oxidesBABCOCK HITACHI KK·Filed 1988·Granted Aug 7, 1990·11 cites·2 claims
- 3752US3976745AProcess for reducing nitrogen oxides to nitrogenMITSUBISHI PETROCHEMICAL CO·Filed 1974·Granted Aug 24, 1976·13 cites·18 claims
- 3850US11803017B2Light receiving device and method of manufacturing the sameNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Oct 31, 2023·0 cites·10 claims
- 3949US11862739B2Photoreceiver and optical receiver having an inclined surfaceNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Jan 2, 2024·0 cites·8 claims
- 4049US11557685B2Lens-integrated light-receiving element and method of examining sameNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Jan 17, 2023·0 cites·8 claims
- 4149US4482479AProcess for treating waste gas in reprocessing of used nuclear fuelHITACHI LTD·Filed 1973·Granted Nov 13, 1984·7 cites·13 claims
- 4248US12031931B2Inspection structure and inspection methodNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Jul 9, 2024·0 cites·13 claims
- 4348US2025254904A1Field-effect transistorNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 4447US11799047B2Avalanche photodiode and method for manufacturing sameNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Oct 24, 2023·0 cites·10 claims
- 4547US5945081AWet-type flue gas desulfurization plant and method making use of a solid desulfurizing agentBABCOCK HITACHI KK·Filed 1997·Granted Aug 31, 1999·11 cites·10 claims
- 4646US10297705B2Avalanche photodiodeNIPPON TELEGRAPH & TELEPHONE·Filed 2015·Granted May 21, 2019·0 cites·6 claims
- 4745US6080370AWet-type flue gas desulfurization plant and method making use of a solid desulfurizing agentBABCOCK HITACHI KK·Filed 1998·Granted Jun 27, 2000·10 cites·10 claims
- 4845US2021167239A1Light-Receiving ElementNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Application pending·0 cites
- 4942US9036965B2Microlens array and optical transmission componentTERUI HIROSHI·Filed 2012·Granted May 19, 2015·0 cites·2 claims
- 5038US5101062AProcess for producing carbamic acid estersBABCOCK HITACHI KK·Filed 1989·Granted Mar 31, 1992·2 cites·13 claims
Showing the top 50 of 51 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →