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have already been discovered, although they are constantly being improved, and require massive amounts of basic nanomaterials such as multiwalled carbon nanotubes (MWNCTs), which means carbon nanotube (CNTs) 1 production capacity must be increased

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Abstract  

Carbon nanotube field emission display (CNT-FED) represents both emerging application of nanotechnology and revolutionary invention of display. Therefore, it is an important subject to monitor the states and trends of CNT-FED technology before the next stage of development. The present paper uses patent bibliometric analysis and patent network analysis to monitor the technological trends in the field of CNT-FED. These results firstly reveal the different aspects of patenting activities in the field of CNT-FED. Then, patent network analysis indicates the developing tendency of worldwide FED production based on the synthesis of CNT materials. Furthermore, key technologies of three clusters can be identified as the depositing CNT on substrate, coating phosphor on screen and assembling process for whole device. Finally, emitter material is taken for the key factor in R&D work to improve the efficacy in CNT-FED technology.

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network including the technological importance of patents, the characteristics of patent clusters and the technological capabilities of competitors. The procedure and analysis are illustrated using a patent set related to synthesis of carbon nanotubes

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Scientometrics
Authors:
Peng Hui Lv
,
Gui-Fang Wang
,
Yong Wan
,
Jia Liu
,
Qing Liu
, and
Fei-cheng Ma

2004 2 3192 Thess A, Lee R, Nikolaev P Crystalline ropes of metallic carbon nanotubes Rice Quantum Inst

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existed in the CR. Among them, the standard reference should cover author, title, journal, press and page number, like this “M. S. P. Shaffer, et al. “Dispersions of Carbon Nanotubes: Polymeric Analogies”. Department of Materials Science, Cambridge

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Abstract  

Nanotechnology has been intensively investigated by bibliometric methods due to its technological importance and expected impacts on economic activity. However, there is less focus on nanobiotechnology, which is an emerging research domain in nanotechnology. In this paper, we study the current status of the former, with our primary focus being to reveal the structure and research domains in nanobiotechnology. We also examine country and institutional performance in nanobiotechnology. It emerged that nanostructures, drug delivery and biomedical applications, bio-imaging, and carbon nanotubes and biosensors are the major research domains, while the USA is the leading country, and China has also made substantial contribution. Most institutions having a major impact in the area of nanobiotechnology are located in the USA.

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publications. Their results indicate majority of –Fullerene documents published by Science and Technology while only 93 of 840 documents titles in the journal include the word –nanotube(s)on codification of meaning relations among words (–carbon- nanotubes

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USPTO applications (Granted) 742 Carbon nanotubes (CNTs) 108 (23) 773 Nanoparticle (structure having

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citations. Additionally, other techniques such as clustering and co-word analysis may define implicit ties among patents as well. For example, Chang et al. ( 2010 ) examined the patent network of carbon nanotube field emission display with co-word and

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Abstract  

There is general consensus that the field of nanotechnology will be very important in the future. An open question is, however, which technological approaches or paradigms will be important in the field. The paper assumes that the carbon nanotube will be a key element of an emerging technological paradigm in nanotechnology. This study employs a bibliometric method — bibliographic coupling — to identify important nanotubes-related ‘leitbilder’ — a concept meaning ‘guiding images’ that provide a basis for different professions and disciplines to work in the same direction. Until recently, bibliographic coupling has been applied rarely for purposes of research evaluation, not to mention technology foresight. Our case study seems to suggest that bibliographic coupling is particularly suitable for anticipating technological breakthroughs. Bibliographic coupling analysis of recent nanotube-related patents focused our attention to recent patents owned by Nantero Inc. Nantero’s main focus is the development of NRAM — a high-density nonvolatile random access memory. The NRAM leitbild seems to be an important emerging leitbild. It connects technical opportunities and promising applications relating to the memories in devices such as cell phones, MP3 players, digital cameras, as well as applications in networking arena.

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