Factbites
 Where results make sense
About us   |   Why use us?   |   Reviews   |   PR   |   Contact us  

Topic: Sumio Iijima


Related Topics

In the News (Sat 4 Jul 09)

  
  Sumio Iijima - Wikipedia, the free encyclopedia
Sumio Iijima (飯島 澄男 Iijima Sumio, born May 2, 1939) is a Japanese physicist, best known for discovering carbon nanotubes in 1991.
Born in Saitama Prefecture in 1939, Iijima graduated with a Bachelor of Engineering degree in 1963 from the University of Electro-Communications, Tokyo.
He was awarded the Benjamin Franklin Medal in Physics in 2002, "for the discovery and elucidation of the atomic structure and helical character of multi-wall and single-wall carbon nanotubes, which have had an enormous impact on the rapidly growing condensed matter and materials science field of nanoscale science and electronics."
en.wikipedia.org /wiki/Sumio_Iijima   (261 words)

  
 KnowMadz Library : Reference : Buckytubes   (Site not responding. Last check: 2007-10-18)
Sumio Iijima, a scientist at NEC Corporation, made the discovery this past May while examining sooty deposits on a carbon-arc electrode he had used to generate fullerenes.
Iijima deduced the structure of his tubes in part from images produced by the 500,000-fold magnifications of a high-resolution transmission electron microscope, in part from electron diffraction patterns.
Iijima says he is trying to optimize for length and for yield, but he just laughs when asked how he hopes to do it and what results he expects to obtain.
www.knowmadz.org /library/ref/bucktube.htm   (828 words)

  
 2002 Benjamin Franklin Medal in Physics   (Site not responding. Last check: 2007-10-18)
Sumio Iijima was educated at the University of Electro-Communications in Tokyo.
Iijima also worked as a visiting scholar at Cambridge University in 1979, where he carried out electron microscopy of graphite.
Iijima has been a research fellow at NEC since 1987 and discovered carbon nanotubes in 1991.
sln.fi.edu /tfi/exhibits/bower/02/physics.html   (588 words)

  
 Small Times: News about MEMS, Nanotechnology and Microsystems   (Site not responding. Last check: 2007-10-18)
Sumio Iijima: His name is synonymous with carbon nanotubes, which he first identified in 1991 while at NEC.
Iijima and his research team realized nanohorns could serve as electrodes in fuel cells, where a hydrogen-based fuel such as methanol is catalytically converted into energy.
Iijima also teaches at Meijo University in Nagoya, directs the Research Center for Advanced Carbon Materials at the National Institute of Advanced Industrial Science and is the research director of a nanotechnology project at the International Cooperative Research Project at the Japan Science and Technology Corp.
www.smalltimes.com /document_display.cfm?document_id=7563   (1075 words)

  
 Small Times: News about MEMS, Nanotechnology and Microsystems   (Site not responding. Last check: 2007-10-18)
Sumio Iijima was considered the strongest among the Japanese candidates for the prize.
This is because Iijima is known for his 1991 discovery of the carbon nanotube, an ultrafine carbon material measuring several thousandths of a human hair in diameter.
Iijima failed to be chosen as Nobel laureate this year, many experts say he most likely will win the Nobel Prize in the next few years.
www.smalltimes.com /document_display.cfm?document_id=7021   (874 words)

  
 NEC HPCE: Press releases   (Site not responding. Last check: 2007-10-18)
Iijima is currently taking a global leading role as a Representative Researcher in the International Cooperative Research Project "Nanotubulites " of Japan Science and Technology Corporation (ICORP/JST).
Iijima clarified mechanisms of growth and bending of nanotubes, found metal incorporation into nanotubes, and grew single-wall carbon nanotubes.
The technology is almost in practical use in the flat panel display industry and in the future, because of its crystal completeness and miniature structure, carbon nanotube technology is expected to be applied to fuel cells, catalysts, absorbents, sensors, STM probes, lightweight and high-strength raw material and medicine etc.
www.hpce.nec.com /58+M51601acb8cc.0.html   (771 words)

  
 American Scientist Online - Fullerene Nanotubes: C 1,000,000 and Beyond   (Site not responding. Last check: 2007-10-18)
Iijima's samples were created by a direct-current arc discharge between carbon electrodes immersed in a noble gas.
Iijima himself suggests that nanotubes may have been formed in those old experiments, but Bacon lacked the high-power microscope required to see them.
Although various fullerenes can be produced by different ways of vaporizing carbon, followed by condensation in tiny clusters, the presence of an electric field in the arc discharge seems to promote the growth of the long tubules.
www.americanscientist.org /template/AssetDetail/assetid/28780/page/2;_uCU2ZHBtKa   (453 words)

  
 BW Online | July 8, 2002 | Sumio Iijima
Over the past year, he and his team at NEC have used nanotubes as a component in hydrogen-powered fuel cells that could prove to be the key energy source for automobiles in the future.
At his admissions interview, the Tohoku professors decided to place Iijima in the microscopy lab, where research into the atomic structure of materials is conducted using high-resolution electron microscopes.
Iijima adopted the same method used to create C60 in his nanotube experiments: He passed electrical sparks between two graphite rods.
www.businessweek.com /magazine/content/02_27/b3790627.htm   (880 words)

  
 Sumio Iijima   (Site not responding. Last check: 2007-10-18)
@@@Sumio Iijima is currently a Professor in the Department of Materials Science and Engineering at Meijo University, Nagoya and is also a part-time Research Fellow at the Fundamental Research Laboratories of NEC Corporation.
He served as president of the Japanese Microscopy Society for 2001-2003, and was elected as a Fellow of the American Physical Society, and as director of Research Center for Advanced Carbon Materials at the National Institute of Advanced Industrial Science and Technology in Japan.
@@@Dr. Iijima is distinguished members of the Japanese Chemical Society, the Japanese Microscopy Society and the Crystallographic Society of Japan, and he belongs to the Physical Society of Japan, the Japan Society for Applied Physics, the American Microscopy Society and the Material Research Society.
nanocarb.meijo-u.ac.jp /jst/people/IIJIMA/sumio_iijima.html   (4655 words)

  
 Intro to Carbon Nanotubes - "Whiskers"   (Site not responding. Last check: 2007-10-18)
In 1991 Dr. Sumio Iijima was researching buckyballs at the NEC Corporation in Japan.
Buckyballs are nanometer-sized spheres with 60 carbon atoms in the exact shape of a soccer ball.
When Dr. Iijima looked under a microscope at the soot this process produced, he noticed "whiskers," which he later discovered to be tubes -- carbon nanotubes!
cst.mos.org /cst/article/4864/2.html   (87 words)

  
 Carbon Nanotubes
They were discovered in 1991 by the Japanese electron microscopist Sumio Iijima who was studying the material deposited on the cathode during the arc-evaporation synthesis of fullerenes.
A short time later, Thomas Ebbesen and Pulickel Ajayan, from Iijima's lab, showed how nanotubes could be produced in bulk quantities by varying the arc-evaporation conditions.
Sumio Iijima's group subsequently showed that they could also be produced by laser ablation of graphite, and gave them the name "nanohorns".
www.personal.rdg.ac.uk /~scsharip/tubes.htm   (1116 words)

  
 Foresight Update 35 Page 3
Sumio Iijima of NEC Corporation reported his recent discovery of another unexpected structure made from curved graphene sheets.
Iijima finished by describing another class of structures produced by laser ablation, which he and his colleagues have recently published in
These structures resemble nanoscale coaxial cable, with a core of beta-phase silicon carbide, a semiconductor material, surrounded by amorphous silicon oxide, an insulator, surrounded by outer layers of graphitic boron nitride or carbon, which could be metallic or semiconducting.
www.foresight.org /Updates/Update35/Update35.3.html   (5347 words)

  
 Dr. Sumio Iijima, CNT, Carbon Nanotube, NEC Laboratories Innovative Engine
In "About Myself," we introduce the origins of NEC's top researchers, and look at some of the many transformations that their research activities undergo.
In this edition, we have a message from Dr. Sumio Iijima.
I urge you to go out and create sciences and technologies that you can be proud of presenting on a global stage.
www.labs.nec.co.jp /Eng/innovative/E1/myself.html   (1772 words)

  
 Carbon Nanotube Electronics for Dummies   (Site not responding. Last check: 2007-10-18)
Sumio Iijima of NEC laboratories in Japan was one researcher working in this field.
In 1991, Iijima was examining soot produced by a technique similar to the one used by Kroto and Smalley when he found strange tube-like carbon structures
These structures were given the name "carbon nanotubes" due to the fact that their diameters were on the order of a few nanometers.
spice.chem.emory.edu /students/welsher/history.html   (295 words)

  
 Sumio Iijima Patent Inventor Nagoya-shi, JP
Sumio Iijima Patent Inventor Nagoya-shi, JP FREE patent keyword monitoring and additional FREE benefits.
The patent applicatons displayed for Sumio Iijima are for a recent sample of patent applications.
If Sumio Iijima filed recent patent applications under another name, spelling or location then those applications could be listed on an alternate page.
www.freshpatents.com /Sumio-Iijima-Nagoyashi-invdiri.php   (72 words)

  
 Search Results for nanotube - Encyclopædia Britannica
In 1991 Iijima Sumio of NEC Corporation's Fundamental Research Laboratory, Tsukuba Science City, Japan, investigated material extracted from solids that grew on the tips of carbon electrodes after...
In 1991 Sumio Iijima and associates at NEC Corp., Tsukuba, Japan, reported making carbon nanotubes, unusual all-carbon structures predicted to have remarkable mechanical and electronic properties.
All-carbon fullerene molecules, such as the soccer-ball-patterned buckminsterfullerene (C60), have cage structures with open interiors that are ideal for holding metal atoms or small gas molecules.
www.britannica.com /search?query=nanotube&submit=Find&source=MWTAB   (288 words)

  
 Single-shell carbon nanotubes of 1-nm diameter
Ajayan, P. and Iijima, S. Nature 361, 333−334 (1993).
Iijima, S., Ichihashi, T. and Ando, Y. Nature 356, 776−778 (1992).
Iijima, S., Ajayan, P. and Ichihashi, T. Phys.
www.nature.com /nature/journal/v363/n6430/abs/363603a0.html;jsessionid=7EAC1681EE1560C2E376BF85B68B79FD   (239 words)

  
 [No title]
Luck favours the prepared mind, as Louis Pasteur said, and Japanese scientist Sumio Iijima’s mind was certainly well prepared for his amazing discovery in 1991.
Iijima is a microscopist at the NEC Corporation, a Japanese electronics company, and for many years he had studied the atomic-scale structure of carbon fibres.
By passing electrical sparks between two closely spaced graphite rods, Iijima vaporized them and allowed the carbon to condense in a sooty mass.
www.casi.net /D.BioInformatics1/D.Fall2000ClassPage/Nano/carbonnn.htm   (1701 words)

  
 Sweating the Small Stuff, 1992-2002
Another of the top-ranked authors, Sumio Iijima of NEC Corporation (with coauthor T. Ichihashi) fielded the survey’s third-most-cited paper: "Single-shell carbon nanotubes of 1-nm diameter," (Nature, 363:603, 1993), with more than 870 citations to date.
Iijima’s 1991 blockbuster from Nature (354:56, 1991), reporting the discovery of carbon nanotubes, falls just outside this survey’s 1992-2002 time frame, or the paper’s 3,300+ citations would have vaulted Iijima to the #2 spot among authors.
Charles M. Lieber of Harvard, #5 on the list of most-cited authors, is interviewed in this issue, while Georgia Tech’s Zhong L. Wang (#20) is quoted in the Chemistry Top Ten feature.
www.sciencewatch.com /july-aug2003/sw_july-aug2003_page1.htm   (591 words)

  
 Iijima - Anime News Network - Hajime IIJIMA   (Site not responding. Last check: 2007-10-18)
Here, Dr. Iijima looks back on his history as a researcher, and talks about the future of carbon nanotubes.
Iijima, T. Ichihashi and Y. Ando, Nature (London) 356, 776 (1992) [CAS][ dot INSPEC].
Orienteering, Aug. 18th(Sat.) - 19th(Sun.) The map of the Iijima Forest is as follows:.
spiderarea.com /q/iijima.htm   (161 words)

  
 Multiwall nanotubes: Nested cylinders or scrolls?   (Site not responding. Last check: 2007-10-18)
There appears to be no definitive agreement regarding the real topology of multi-wall nanotubes which have been discovered by Sumio Iijima, who was observing in a TEM the structure of the cathode of the carbon arc that had been used to produce fullerenes [1].
The projected images can not easily be used to distinguish between nested, independent cylinders and a "scroll".
The scroll model would provide a natural explanation of the fact that the inner diameter of multi-wall tubes is in most cases significantly larger than that of single-wall tubes.
www.pa.msu.edu /cmp/csc/NANOTUBE-99/puzzles/6.html   (156 words)

  
 [ EPS ]   (Site not responding. Last check: 2007-10-18)
The European Physical Society is pleased to announce that the Agilent Technologies Europhysics Prize for the year 2001 has been awarded to Sumio Iijima, Cees Dekker, Thomas W. Ebbesen, and Paul L. McEuen for the discovery of multi and single walled carbon nanotubes and pioneering studies of their fundamental mechanical and electronic properties.
In 1991 Dr. Sumio Iijima discovered a new form of carbon, called carbon nanotubes.
Since then, they been found to possess remarkable physical properties and Dr. Iijima has continued with many contributions reporting new forms and modifications of carbon-based giant molecules.
www.eps.org /prizes/agitechP01.html   (686 words)

  
 The Wonderful World of Carbon Nanotubes Presentation   (Site not responding. Last check: 2007-10-18)
Sumio Iijima discovered carbon nanotubes in 1991 while researching Buckyballs.
And since then, lots of research has been done to understand the science behind these tubes that are only a nanometer (one billionth of a meter) in diameter.
Sumio Iijima on Nanotubes (one hour video): www.vega.org.uk/series/vri/vri9/index.html
www.mos.org /cst/article/4656   (157 words)

  
 Middle East Open Encyclopedia: Sumio Iijima   (Site not responding. Last check: 2007-10-18)
This is an extract from The Middle East Open Encyclopedia, made possible through the Wikimedia Foundation.
Iraq Museum International always displays the most recent published revision of the source article, Sumio Iijima; all previous versions may be viewed here.
They link directly to authoring tools for you to start writing a particular article.
www.baghdadmuseum.org /ref/index.php?title=Sumio_Iijima   (383 words)

  
 Nanotube
Definition: A one dimensional fullerene with a cylindrical shape.
Carbon nanotubes discovered in 1991 by Sumio Iijima resemble rolled up graphite, although they can not really be made that way.
Depending on the direction that the tubes appear to have been rolled (quantified by the 'chiral vector'), they are known to act as conductors or semiconductors.
www.nanoword.net /library/def/NANOTUBE.HTM   (165 words)

  
 UD Alumni News   (Site not responding. Last check: 2007-10-18)
Sumio Iijima, who discovered carbon nanotubes, will discuss their industrial applications at 10:30 a.m.
It’s invisible to the naked eye and can carry an electrical charge, but is 10 times stronger than steel.
Iijima attracted attention from the scientific community for creating the tiniest wire ever by finding a way to insert metal into a carbon nanotube, which is about half the width of DNA.
alumni.udayton.edu /np_story.asp?storyID=2169   (281 words)

  
 United States Patent 5,457,343   (Site not responding. Last check: 2007-10-18)
By S. Iijima, "Helical Microtubules of graphitic carbon", Letters to Nature, Nov. 7, 1991, vol.
By S. Iijima et al., "Pentagons, heptagons and negative curvature in graphite microtubule growth", Nature-International Weekly Journal of Science, Apr. 30, 1992, vol.
The foreign material is introduced only in a center hollow space defined by an internal surface of the most inner tubular graphite monoatomic sheet.
www.godunov.com /Bucky/patents/5457343   (187 words)

Try your search on: Qwika (all wikis)

Factbites
  About us   |   Why use us?   |   Reviews   |   Press   |   Contact us  
Copyright © 2005-2007 www.factbites.com Usage implies agreement with terms.