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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Hiura; Hidefumi
Address:
Tokyo, JP
No. of patents:
9
Patents:




Patent Number Title Of Patent Date Issued
7247548 Doping method and semiconductor device using the same July 24, 2007
The present invention achieves a shallow junction of a source and a drain, and provides a doping method which makes device properties reproducible and a semiconductor device fabricated using the method. In the present invention, doping for the semiconductor is conducted by attaching a
7138688 Doping method and semiconductor device fabricated using the method November 21, 2006
A doping method includes the step of attaching molecules or clusters to the surface of a semiconductor substrate to enable charge transfer from the molecules or clusters to the substrate surface, thereby inducing carriers underneath the substrate surface. A semiconductor device is fa
6680411 Carborane supercluster and method of producing same January 20, 2004
A carborane supercluster consisting of carborane (C.sub.2 B.sub.10 H.sub.12) as its constituent unit expressed as a molecular formula C.sub.2m B.sub.10m H.sub.12m-x, where x is a positive integer (i.e., x=1, 2, 3, . . . ) and m is an integer greater than unity (i.e., m=2, 3, . . . ).
6540972 Carbon material and method of preparing the same April 1, 2003
A graphite having geometrically shaped holes limited to the top atomic layer such as circles, polygons and combinations thereof, and a method of preparing a graphite having geometrically shaped holes such as circles, polygons and combinations thereof where the geometrically shaped holes
6083624 Carbon material and method of preparing the same July 4, 2000
A graphite having geometrically shaped holes limited to the top atomic layer such as circles, polygons and combinations thereof, and a method of preparing a graphite having geometrically shaped holes such as circles, polygons and combinations thereof where the geometrically shaped holes
5925465 Carbon material originating from graphite and method of producing same July 20, 1999
A novel carbon material is obtained by bending at least one carbon atom layer of graphite in at least one selected region along either, or both, of lines I and II in FIG. 1. The bending can be accomplished by scanningly picking the carbon atom layer(s) with a probe of an atomic force
5698175 Process for purifying, uncapping and chemically modifying carbon nanotubes December 16, 1997
Disclosed is a process for purifying carbon nanotubes which has steps of 1) mixing carbon nanotubes which accompany carbon impurities with a reagent selected from a group consisting of oxidation agents, nitration agents and sulfonation agents in liquid phase, 2) reacting the carbon nanot
5641466 Method of purifying carbon nanotubes June 24, 1997
A mixture of carbon nanotubes and impurity carbon materials, which include carbon nanoparticles and may possibly include amorphous carbon, is purified into carbon nanotubes of high purity by utilizing a significant difference in oxidizability between the nanotubes and the nanoparticles.
5626812 Method of producing carbon material by bending at least one carbon atom layer of graphite May 6, 1997
A novel carbon material is obtained by bending at least one carbon atom layer of graphite in at least one selected region along either, or both, of lines I and II in FIG. 1. The bending can be accomplished by scanningly picking the carbon atom layer(s) with a probe of an atomic force


 
 
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