Inventor · disambiguated record
Kenji Seki
Also filed as: SEKI KENJI
44 granted patents·17 pending applications·564 citations·filing 1976–2025
98Inventor score
Files withTOKYO OHKA KOGYO CO LTD15OSAKA GAS CO LTD7IDEMITSU KOSAN CO6OSAKA GAS CHEMICALS CO LTD5NEC CORP4
Top patents by PatentIndex Score
61 records- 0195US4775605ALayered photosensitive material for electrophotographyRICOH KK·Filed 1986·Granted Oct 4, 1988·75 cites·15 claims
- 0294US7543574B2CanisterMAHLE FILTER SYSTEMS JP CORP·Filed 2007·Granted Jun 9, 2009·27 cites·8 claims
- 0385US4508851AFibrous activated carbon and process of producing itTOHO BESLON CO·Filed 1983·Granted Apr 2, 1985·26 cites·21 claims
- 0484US8262771B2Flammable gas concentration device and flammable gas concentration methodSEKI KENJI·Filed 2007·Granted Sep 11, 2012·18 cites·17 claims
- 0583US5701762AApparatus for recovering high-boiling point solventsNICHIAS CORP·Filed 1996·Granted Dec 30, 1997·72 cites·8 claims
- 0682US11149694B2CanisterOSAKA GAS CHEMICALS CO LTD·Filed 2017·Granted Oct 19, 2021·2 cites·3 claims
- 0781US5010584AMobile communication transceiverNEC CORP·Filed 1989·Granted Apr 23, 1991·54 cites·7 claims
- 0877US11358976B2Surface treatment agent, surface treatment method, and area selective deposition methodTOKYO OHKA KOGYO CO LTD·Filed 2020·Granted Jun 14, 2022·1 cites·8 claims
- 0977US8105426B2CanistersKOSUGI RYUJI·Filed 2009·Granted Jan 31, 2012·7 cites·16 claims
- 1077US7309381B2Gas storage canisterMAHLE FILTER SYSTEMS JP CORP·Filed 2005·Granted Dec 18, 2007·8 cites·11 claims
- 1177US2025059389A1Surface treatment agent, surface treatment method, and area-selective film forming method on substrate surfaceTOKYO OHKA KOGYO CO LTD·Filed 2024·Application pending·0 cites
- 1275US4871635AElectrophotographic photoconductor layered element comprising salt material undercoat layer on conductive supportRICOH KK·Filed 1988·Granted Oct 3, 1989·23 cites·29 claims
- 1373US6779048B2Programmable controller including intelligent moduleHITACHI LTD·Filed 2001·Granted Aug 17, 2004·16 cites·1 claims
- 1472US10941301B2Surface treatment method, surface treatment agent, and method for forming film region-selectively on substrateTOKYO OHKA KOGYO CO LTD·Filed 2018·Granted Mar 9, 2021·1 cites·8 claims
- 1572US5392178AMotor for a disc driving device having a hub positioned on inner race of an upper bearingVICTOR COMPANY OF JAPAN·Filed 1993·Granted Feb 21, 1995·40 cites·4 claims
- 1669US12370817B2Processing device with a sheet cutterROLAND DG CORP·Filed 2023·Granted Jul 29, 2025·0 cites·22 claims
- 1769US8323450B2Method of manufacturing heat storage material, heat storage material, and heat storage adsorbent material and canisterSEKI KENJI·Filed 2009·Granted Dec 4, 2012·5 cites·17 claims
- 1862US6316536B1Polyarylene sulfide resin composition, and moldings and connectors made of itIDEMITSU KOSAN CO·Filed 1999·Granted Nov 13, 2001·13 cites·8 claims
- 1962US2022195214A1Surface treatment agent, surface treatment method, and area-selective film forming method on substrate surfaceTOKYO OHKA KOGYO CO LTD·Filed 2021·Application pending·0 cites
- 2061US8328913B2Flammable gas concentration systemSHITO ETSUO·Filed 2007·Granted Dec 11, 2012·3 cites·11 claims
- 2161US7906078B2Adsorbent of latent-heat storage type for canister and process for producing the sameOSAKA GAS CO LTD·Filed 2003·Granted Mar 15, 2011·4 cites·14 claims
- 2261US6629165B1Programmable controller including intelligent moduleHITACHI LTD·Filed 2000·Granted Sep 30, 2003·7 cites·2 claims
- 2361US5998647AMethane adsorbing-retaining agent and the use thereof in a method for gas storageOSAKA GAS CO LTD·Filed 1998·Granted Dec 7, 1999·21 cites·12 claims
- 2460US5204196ASolid state and conductive polymer compositionOSAKA GAS CO LTD·Filed 1992·Granted Apr 20, 1993·26 cites·1 claims
- 2560US2023146244A1CanisterOSAKA GAS CHEMICALS CO LTD·Filed 2022·Application pending·0 cites
- 2659US5678229ABattery-powered accessory for radio data communication of a data processing apparatusNEC CORP·Filed 1995·Granted Oct 14, 1997·35 cites·20 claims
- 2758US5862796AGas storage apparatus, gaseous fuel automobile using the gas storage apparatus, gas storage method and methane adsorbing-retaining agentOSAKA GAS CO LTD·Filed 1996·Granted Jan 26, 1999·20 cites·6 claims
- 2858US2025270474A1Processing solution, method for processing semiconductor substrate, and method for manufacturing semiconductorTOKYO OHKA KOGYO CO LTD·Filed 2025·Application pending·0 cites
- 2958US2025270480A1Processing solution, method for processing semiconductor substrate, and method for manufacturing semiconductorTOKYO OHKA KOGYO CO LTD·Filed 2025·Application pending·0 cites
- 3057US12285716B2Adsorbent, canister, and method for producing adsorbentOSAKA GAS CHEMICALS CO LTD·Filed 2019·Granted Apr 29, 2025·0 cites·35 claims
- 3157US2009294094A1Heat storage materials and methods of manufacturing the heat storage materialsAISAN IND·Filed 2009·Application pending·0 cites
- 3255US10272693B2Air trap unit, ink supply system, and inkjet printerROLAND DG CORP·Filed 2017·Granted Apr 30, 2019·0 cites·13 claims
- 3353US2024425780A1Cleaning solution, method for cleaning semiconductor substrate, and method for manufacturing semiconductorTOKYO OHKA KOGYO CO LTD·Filed 2024·Application pending·0 cites
- 3452US2025010645A1Printer deviceROLAND DG CORP·Filed 2024·Application pending·0 cites
- 3551US2022195591A1Surface treatment agent, surface treatment method, and region selective film formation method for surface of substrateTOKYO OHKA KOGYO CO LTD·Filed 2021·Application pending·0 cites
- 3651US2025145836A1Water-repelling agent for electroconductive article surface, water-repellency-imparting method for electroconductive article surface, method for selectively imparting water repellency for region having electroconductive article surface, surface treatment method, and method for forming film on selected region of substrate surfaceTOKYO OHKA KOGYO CO LTD·Filed 2023·Application pending·0 cites
- 3751US2022356566A1Surface treatment method, region selective film formation method for substrate surface, and surface treatment agentTOKYO OHKA KOGYO CO LTD·Filed 2022·Application pending·0 cites
- 3850US10988649B2Method for imparting water repellency to substrate, surface treatment agent, and method for suppressing collapse of organic pattern or inorganic pattern in cleaning substrate surface with cleaning liquidTOKYO OHKA KOGYO CO LTD·Filed 2018·Granted Apr 27, 2021·0 cites·10 claims
- 3949US10119103B2Cleaning liquid and method for cleaningTOKYO OHKA KOGYO CO LTD·Filed 2017·Granted Nov 6, 2018·0 cites·19 claims
- 4049US4420599AProcess of producing copolymers of an aromatic vinyl monomer and maleic anhydrideIDEMITSU KOSAN CO·Filed 1982·Granted Dec 13, 1983·7 cites·17 claims
- 4148US11896949B2Adsorbent, canister and method for producing adsorbentMAHLE INT GMBH·Filed 2019·Granted Feb 13, 2024·0 cites·31 claims
- 4248US2023144145A1CanisterOSAKA GAS CHEMICALS CO LTD·Filed 2022·Application pending·0 cites
- 4347US8899968B2Combustible gas processing system and combustible gas processing methodSEKI KENJI·Filed 2008·Granted Dec 2, 2014·0 cites·5 claims
- 4447US4057600AProcess for producing block copolymersIDEMITSU KOSAN CO·Filed 1976·Granted Nov 8, 1977·5 cites·19 claims
- 4545US2023040210A1Surface treatment agent, surface treatment method, and method for region-selectively producing film on substrateTOKYO OHKA KOGYO CO LTD·Filed 2022·Application pending·0 cites
- 4644US10920179B2Cleaning solution and method for cleaning substrateTOKYO OHKA KOGYO CO LTD·Filed 2017·Granted Feb 16, 2021·0 cites·8 claims
- 4743US10961422B2Surface treatment liquid, surface treatment method, and method for suppressing pattern collapseTOKYO OHKA KOGYO CO LTD·Filed 2018·Granted Mar 30, 2021·0 cites·12 claims
- 4843US10377144B2Ink supply system and inkjet printerROLAND DG CORP·Filed 2017·Granted Aug 13, 2019·0 cites·10 claims
- 4943US2001047053A1Polyarylene sulfide resin composition, and moldings and connectors made of itIDEMITSU KOSAN CO·Filed 2001·Application pending·0 cites
- 5042US9732297B2Gas purification methodOSAKA GAS CO LTD·Filed 2014·Granted Aug 15, 2017·0 cites·4 claims
Showing the top 50 of 61 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →