Inventor
IIJIMA SUMIO
JP36 patents
⚠️ This page may combine multiple inventors who share the name “IIJIMA SUMIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NEC CORP
13 patentsUS6203864B1Mar 20, 2001
Method of forming a heterojunction of a carbon nanotube and a different material, method of working a filament of a nanotube
NEC CORP176 citations99
US5747161AMay 5, 1998
Graphite filaments having tubular structure and method of forming the same
NEC CORP159 citations99
US5457343AOct 10, 1995
Carbon nanotubule enclosing a foreign material
NEC CORP168 citations99
US6331690B1Dec 18, 2001
Process for producing single-wall carbon nanotubes uniform in diameter and laser ablation apparatus used therein
NEC CORP84 citations97
US5830326ANov 3, 1998
Graphite filaments having tubular structure and method of forming the same
NEC CORP76 citations96
US7067096B2Jun 27, 2006
Carbon nanotube-carbon nanohorn complex and method for producing the same
NEC CORP22 citations91
US7209341B2Apr 24, 2007
Polarizing electrode, manufacturing method thereof, and electric double-layer capacitor
NEC CORP13 citations83
US7261941B2Aug 28, 2007
Sharp end, multi-layer carbon nano-tube radial aggregate and method of manufacturing the aggregate
NEC CORP6 citations72
US12486173B2Dec 2, 2025
Production method for thin film of aligned carbon nanotube
NEC CORP0 citations62
US6967043B2Nov 22, 2005
Method of manufacturing the densely fitted multi-layer carbon nano-tube
NEC CORP2 citations61
US7501024B2Mar 10, 2009
Carbon nanohorn producing device and carbon nanohorn producing method
NEC CORP5 citations60
US12415729B2Sep 16, 2025
Carbon nanotube separation method and separation apparatus
NEC CORP0 citations52
US7537786B2May 26, 2009
Complex of drug-carbon nanohorn and a process for producing the complex
NEC CORP1 citations48
HATA KENJI
5 patentsUS8114518B2Feb 14, 2012
Single-walled carbon nanotube and aligned single-walled carbon nanotube bulk structure, and their production process, production apparatus and application use
HATA KENJI31 citations92
US8318308B2Nov 27, 2012
Single-walled carbon nanotube and aligned single-walled carbon nanotube bulk structure, and their production process, production apparatus and application use
HATA KENJI12 citations83
US8202505B2Jun 19, 2012
Aligned carbon nanotube bulk aggregate, process for producing the same and uses thereof
HATA KENJI3 citations62
US8178203B2May 15, 2012
Aligned single-walled carbon nanotube aggregate, bulk aligned single-walled carbon nanotube aggregate, and powdered aligned single-walled carbon nanotube aggregate
HATA KENJI3 citations62
US8329135B2Dec 11, 2012
Aligned carbon nanotube bulk structure having portions different in density
HATA KENJI0 citations41
YUGE RYOTA
4 patentsUS8202817B2Jun 19, 2012
Nanocarbon aggregate and method for manufacturing the same
YUGE RYOTA17 citations83
US8093174B2Jan 10, 2012
Catalyst-supporting carbon nanohorn composite and process for producing same
YUGE RYOTA2 citations61
US8084505B2Dec 27, 2011
Substance-containing carbon nanohorn composite having polyamine plug and process for producing the same
YUGE RYOTA4 citations58
US9399579B2Jul 26, 2016
Substance-encapsulating carbon nanohorn aggregate and process for producing the same
YUGE RYOTA0 citations37
NAT INST OF ADVANCED IND SCIEN
3 patentsUS7854991B2Dec 21, 2010
Single-walled carbon nanotube and aligned single-walled carbon nanotube bulk structure, and their production process, production apparatus and application use
NAT INST OF ADVANCED IND SCIEN88 citations97
US9156699B2Oct 13, 2015
Method for producing graphene, and graphene
NAT INST OF ADVANCED IND SCIEN17 citations82
US8007909B2Aug 30, 2011
Carbon film
NAT INST OF ADVANCED IND SCIEN2 citations60
JAPAN SCIENCE & TECH AGENCY
3 patentsUS8007908B2Aug 30, 2011
Single walled carbon nanohorn adsorptive material and method for production thereof
JAPAN SCIENCE & TECH AGENCY2 citations62
US7323246B2Jan 29, 2008
Nano horn carrier and method of manufacturing the carrier
JAPAN SCIENCE & TECH AGENCY0 citations52
US7803346B2Sep 28, 2010
Method of selecting structure of carbon nanotube through photoirradiation
JAPAN SCIENCE & TECH AGENCY0 citations45