Inventor · disambiguated record
Keizo Ikai
Also filed as: IKAI KEIZO
21 granted patents·3 pending applications·572 citations·filing 1991–2022
95Inventor score
Top patents by PatentIndex Score
24 records- 0198US6606183B2Method for producing a cell for an electrochromic mirror and an electrochromic mirrorNIPPON OIL CORP·Filed 2000·Granted Aug 12, 2003·253 cites·20 claims
- 0296US8993478B2Activated carbon for electric double layer capacitor electrode and method for producing the activated carbonFUJII MASAKI·Filed 2010·Granted Mar 31, 2015·49 cites·4 claims
- 0396US7754178B2Raw-material carbon composition for carbon material for electrode of electric double-layer capacitorNIPPON OIL CORP·Filed 2005·Granted Jul 13, 2010·55 cites·20 claims
- 0491US5304622AProcess for producing polysilanesNIPPON OIL CO LTD·Filed 1992·Granted Apr 19, 1994·55 cites·2 claims
- 0587US5700400AMethod for producing a semiconducting materialNIPPON OIL CO LTD·Filed 1995·Granted Dec 23, 1997·72 cites·13 claims
- 0679US6535322B2Electrochromic mirrorNIPPON MITSUBISHI OIL CORP·Filed 2000·Granted Mar 18, 2003·20 cites·13 claims
- 0778US6867894B2Electrochromic mirrorNIPPON OIL CORP·Filed 2003·Granted Mar 15, 2005·20 cites·2 claims
- 0868US8284540B2Process of producing activated carbon for electric double layer capacitor electrodeFUJII MASAKI·Filed 2008·Granted Oct 9, 2012·1 cites·9 claims
- 0967US8664155B2Carbon material for electric double layer capacitor and process for producing the carbon materialFUJII MASAKI·Filed 2009·Granted Mar 4, 2014·1 cites·5 claims
- 1066US8858654B2Activated carbon for electric double layer capacitor electrode and method for producing the activated carbonFUJII MASAKI·Filed 2011·Granted Oct 14, 2014·1 cites·8 claims
- 1165US7564676B2Electric double layer capacitor, activated carbon for electrode therefor and method for producing the sameNIPPON OIL CORP·Filed 2004·Granted Jul 21, 2009·8 cites·21 claims
- 1265US2024290974A1Method for producing synthetic graphite material for lithium-ion secondary battery negative electrodes, synthetic graphite material for lithium-ion secondary battery negative electrodes, negative electrode for lithium-ion secondary batteries, and lithium-ion secondary batteryENEOS CORP·Filed 2022·Application pending·0 cites
- 1361US2023216052A1Artificial graphite material for lithium ion secondary battery negative electrode, and production method thereforENEOS CORP·Filed 2021·Application pending·0 cites
- 1453US6421162B2Method for producing a cell for an electrochromic mirror and an electrochromic mirrorNIPPON MITSUBISHI OIL CORP·Filed 2000·Granted Jul 16, 2002·4 cites·8 claims
- 1549US6150549ASilane compoundNIPPON MITSUBISHI OIL CORP·Filed 1998·Granted Nov 21, 2000·4 cites·4 claims
- 1646US6814451B2Antiglare mirror apparatus in a vehicle compartmentNIPPON OIL CORP·Filed 2003·Granted Nov 9, 2004·2 cites·13 claims
- 1744US7105612B2Process for producing solid polymer electrolyteNIPPON OIL CORP·Filed 2003·Granted Sep 12, 2006·0 cites·1 claims
- 1842US6046350ATertiary alkylsilaneNIPPON OIL CO LTD·Filed 1998·Granted Apr 4, 2000·2 cites·4 claims
- 1939US6015951APhotoelectric transfer deviceNIPPON OIL CO LTD·Filed 1997·Granted Jan 18, 2000·7 cites·10 claims
- 2039US5997637AMethod of producing a semiconducting materialNIPPON OIL CO LTD·Filed 1996·Granted Dec 7, 1999·6 cites·9 claims
- 2137US5342982ASilicon-containing organic compounds and process for preparing sameNIPPON OIL CO LTD·Filed 1993·Granted Aug 30, 1994·2 cites·6 claims
- 2236US2001006092A1Method for producing an electrochromic mirrorNIPPON MITSUBISHI OIL CORP·Filed 2000·Application pending·0 cites
- 2333US5620531APhotovoltaic elementNIPPON OIL CO LTD·Filed 1995·Granted Apr 15, 1997·10 cites·5 claims
- 2430US5153331A6-epithioethyl-3-oxatricyclo [3.2.1.02.4 ] octane and process for preparation thereofNIPPON OIL CO LTD·Filed 1991·Granted Oct 6, 1992·0 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →