Inventor · disambiguated record
Sumio Iijima
Also filed as: IIJIMA SUMIO
35 granted patents·36 pending applications·906 citations·filing 1993–2020
97Inventor score
Top patents by PatentIndex Score
71 records- 0198US7854991B2Single-walled carbon nanotube and aligned single-walled carbon nanotube bulk structure, and their production process, production apparatus and application useNAT INST OF ADVANCED IND SCIEN·Filed 2005·Granted Dec 21, 2010·88 cites·9 claims
- 0298US6203864B1Method of forming a heterojunction of a carbon nanotube and a different material, method of working a filament of a nanotubeNEC CORP·Filed 1999·Granted Mar 20, 2001·176 cites·6 claims
- 0398US5457343ACarbon nanotubule enclosing a foreign materialNEC CORP·Filed 1993·Granted Oct 10, 1995·168 cites·2 claims
- 0497US8114518B2Single-walled carbon nanotube and aligned single-walled carbon nanotube bulk structure, and their production process, production apparatus and application useHATA KENJI·Filed 2010·Granted Feb 14, 2012·31 cites·5 claims
- 0595US6331690B1Process for producing single-wall carbon nanotubes uniform in diameter and laser ablation apparatus used thereinNEC CORP·Filed 2000·Granted Dec 18, 2001·84 cites·7 claims
- 0694US9156699B2Method for producing graphene, and grapheneNAT INST OF ADVANCED IND SCIEN·Filed 2013·Granted Oct 13, 2015·17 cites·14 claims
- 0794US8318308B2Single-walled carbon nanotube and aligned single-walled carbon nanotube bulk structure, and their production process, production apparatus and application useHATA KENJI·Filed 2011·Granted Nov 27, 2012·12 cites·11 claims
- 0890US5830326AGraphite filaments having tubular structure and method of forming the sameNEC CORP·Filed 1997·Granted Nov 3, 1998·76 cites·19 claims
- 0989US8202817B2Nanocarbon aggregate and method for manufacturing the sameYUGE RYOTA·Filed 2008·Granted Jun 19, 2012·17 cites·31 claims
- 1089US5747161AGraphite filaments having tubular structure and method of forming the sameNEC CORP·Filed 1996·Granted May 5, 1998·159 cites·9 claims
- 1181US7067096B2Carbon nanotube-carbon nanohorn complex and method for producing the sameNEC CORP·Filed 2002·Granted Jun 27, 2006·22 cites·7 claims
- 1279US7462462B2Peptide capable of binding to nanographite structuresJAPAN FOUND CANCER·Filed 2005·Granted Dec 9, 2008·5 cites·5 claims
- 1376US8202505B2Aligned carbon nanotube bulk aggregate, process for producing the same and uses thereofHATA KENJI·Filed 2009·Granted Jun 19, 2012·3 cites·2 claims
- 1476US8084505B2Substance-containing carbon nanohorn composite having polyamine plug and process for producing the sameYUGE RYOTA·Filed 2007·Granted Dec 27, 2011·4 cites·14 claims
- 1575US8178203B2Aligned single-walled carbon nanotube aggregate, bulk aligned single-walled carbon nanotube aggregate, and powdered aligned single-walled carbon nanotube aggregateHATA KENJI·Filed 2008·Granted May 15, 2012·3 cites·5 claims
- 1672US9074278B2Carbon film laminateHASEGAWA MASATAKA·Filed 2011·Granted Jul 7, 2015·1 cites·3 claims
- 1771US8093174B2Catalyst-supporting carbon nanohorn composite and process for producing sameYUGE RYOTA·Filed 2008·Granted Jan 10, 2012·2 cites·22 claims
- 1868US8835006B2Carbon nanohorn carried material and process for producing carbon nanotubeIIJIMA SUMIO·Filed 2012·Granted Sep 16, 2014·2 cites·1 claims
- 1965US7209341B2Polarizing electrode, manufacturing method thereof, and electric double-layer capacitorNEC CORP·Filed 2004·Granted Apr 24, 2007·13 cites·11 claims
- 2063US12486173B2Production method for thin film of aligned carbon nanotubeNEC CORP·Filed 2020·Granted Dec 2, 2025·0 cites·20 claims
- 2163US7261941B2Sharp end, multi-layer carbon nano-tube radial aggregate and method of manufacturing the aggregateNEC CORP·Filed 2002·Granted Aug 28, 2007·6 cites·7 claims
- 2260US7501024B2Carbon nanohorn producing device and carbon nanohorn producing methodNEC CORP·Filed 2004·Granted Mar 10, 2009·5 cites·16 claims
- 2359US12415729B2Carbon nanotube separation method and separation apparatusNEC CORP·Filed 2020·Granted Sep 16, 2025·0 cites·19 claims
- 2458US8007909B2Carbon filmNAT INST OF ADVANCED IND SCIEN·Filed 2005·Granted Aug 30, 2011·2 cites·9 claims
- 2558US6967043B2Method of manufacturing the densely fitted multi-layer carbon nano-tubeNEC CORP·Filed 2002·Granted Nov 22, 2005·2 cites·9 claims
- 2657US2008152593A1Contrast AgentJAPAN SCIENCE & TECH AGENCY·Filed 2005·Application pending·0 cites
- 2756US8007908B2Single walled carbon nanohorn adsorptive material and method for production thereofJAPAN SCIENCE & TECH AGENCY·Filed 2004·Granted Aug 30, 2011·2 cites·6 claims
- 2855US7384520B2Method for manufacturing hybrid carbon nanotubeJAPAN SCIENCE & TECH CORP·Filed 2002·Granted Jun 10, 2008·5 cites·5 claims
- 2953US8329135B2Aligned carbon nanotube bulk structure having portions different in densityHATA KENJI·Filed 2009·Granted Dec 11, 2012·0 cites·6 claims
- 3052US2011082034A1Nanotube-nanohorn complex and method of manufacturing the sameYUGE RYOTA·Filed 2009·Application pending·0 cites
- 3150US2008135398A1Method For Manufacturing Carbonaceous MaterialAZAMI TAKESHI·Filed 2005·Application pending·0 cites
- 3247US7323246B2Nano horn carrier and method of manufacturing the carrierJAPAN SCIENCE & TECH AGENCY·Filed 2003·Granted Jan 29, 2008·0 cites·10 claims
- 3346US2001001681A1Method of forming a heterojunction of a carbon nanotube and a different material, method of working a filament of a nanotubeFiled 2000·Application pending·0 cites
- 3446US2012058053A1Carbon nanohorn mri contrast agentsIIJIMA SUMIO·Filed 2011·Application pending·0 cites
- 3546US2009226718A1Carbon filmHASEGAWA MASATAKA·Filed 2006·Application pending·0 cites
- 3645US9399579B2Substance-encapsulating carbon nanohorn aggregate and process for producing the sameYUGE RYOTA·Filed 2008·Granted Jul 26, 2016·0 cites·3 claims
- 3744US2006147647A1Apparatus and method for manufacturing nano carbonAZAMI TAKESHI·Filed 2004·Application pending·0 cites
- 3844US2006133979A1Apparatus and method for manufacturing nano carbonAZAMI TAKESHI·Filed 2004·Application pending·0 cites
- 3944US2009196993A1Carbon Nanohorn Carried Material And Process For Producing Carbon NanotubeIIJIMA SUMIO·Filed 2007·Application pending·0 cites
- 4044US2007028768A1Method of adsorption using self-locking carbon adsorbentIIJIMA SUMIO·Filed 2006·Application pending·0 cites
- 4144US2010025222A1Method of forming pore in graphitic-carbon nanomaterial and method of introducing oxygen-containing group into poreNEC CORP·Filed 2007·Application pending·0 cites
- 4243US2006210464A1Carbon nanohorn assembly producing methodNEC CORP·Filed 2004·Application pending·0 cites
- 4343US2007025905A1Nanocarbon-producing deviceNEC CORP·Filed 2004·Application pending·0 cites
- 4443US2004124755A1Method of forming a heterojunction of a carbon nanotube and a different material, method of working a filament of a nanotubeNEC CORP·Filed 2003·Application pending·0 cites
- 4542US8501276B2Carbon filmKOGA YOSHINORI·Filed 2011·Granted Aug 6, 2013·0 cites·4 claims
- 4642US2009036549A1Substance-encapsulated carbon nanohorn complex and producing method thereofNEC CORP·Filed 2007·Application pending·0 cites
- 4742US2007298253A1Transparent Conductive Carbon Nanotube Film and a Method for Producing the SameHATA KENJI·Filed 2005·Application pending·0 cites
- 4842US2007027029A1Catalyst support, gas storage body and method for producing theseKASUYA DAISUKE·Filed 2004·Application pending·0 cites
- 4942US2005106093A1Method for preparing monolayer carbon nanotubeNEC CORP·Filed 2003·Application pending·0 cites
- 5042US2008019893A1Method For Manufacturing Metal Loading Carbon MaterialNEC CORP·Filed 2005·Application pending·0 cites
Showing the top 50 of 71 patent records by PatentIndex Score.
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