Intellectual Property Law

US Patent 7494336 - Nanocrystalline nozzle tip for injection molding

Posted on February 24, 2009
http://www.freepatentsonline.com/7494336.htmlInjection molding is a process used to form plastic articles. The tip used in the injection requires a high thermal conductivity in order to keep the plastic in a liquid state while it is flowing but allow a quick dissipation of the heat during solidification...

US Patent 7493160 - Nanoactuated catheter

Posted on February 22, 2009
http://www.freepatentsonline.com/7493160.htmlBalloon catheters are often employed to repair blocked arteries. This patent from Boston Scientific teaches using buckypaper as an actuator in such balloon catheters for improvements in the actuation force...

US Patent 7492803 - Fiber optic coupled nanowire laser

Posted on February 22, 2009
http://www.freepatentsonline.com/7492803.htmlThis patent from Hewlett Packard introduces a single photon fiber optic system based on nanowire lasers which could be very important to quantum communication systems in the future. Claim 1 reads:1. A device comprising:a substrate having at least one hole;a nanowire laser positioned within the at least one hole; anda waveguide positioned proximal to said at least one hole so that a single photon generated by said nanowire laser is coupled into said waveguide.

US Patent 7492458 - Surface plasmon resonance plasma display

Posted on February 22, 2009
http://www.freepatentsonline.com/7492458.htmlSurface plasmon resonance is an effect which has often been used in the study of molecular and biological structures. This patent from a company called American Environmental Systems teaches an alternative application to achieve enhanced contrast and brightness of displays...

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US Patent 7492161 - Electrolytic nanoprobe

Posted on February 22, 2009
http://www.freepatentsonline.com/7492161.htmlThis patent teaches a new tool designed to study the electrical behavior of mitochrondria cells. Claim 1 reads:1. A nanosized electrical probe for measuring an electrical signal of charged colloidal particles, which is fabricated from a quartz capillary and has a tip diameter of 50-100 nm, wherein the nanosized electrical probe is filled with an electrolytic solution, and thus has a tip resistance of 100 to 150 Mohms.

US Patent 7492101 - Multicolor plasma display with CNT layers

Posted on February 19, 2009
http://www.freepatentsonline.com/7492101.htmlThis patent from Samsung SDI discloses a plasma display in which a layer of carbon nanotubes is placed above the color fluorescent material to provide improved luminous efficiency. Claim 1 reads:1. A plasma display panel (PDP), comprising:a lower substrate;a dielectric layer formed on the lower substrate;partitions formed along a first direction on the dielectric layer;red, green, and blue discharge cells defined by the partitions; anda red, green, and blue fluorescent layer formed in the red, green, and blue discharge cells, respectively; whereina carbon nanotube (CNT) layer extends along the first direction and completely covers the red, green, or blue fluorescent layer.

US Patent 7492046 - CNT electric fuses

Posted on February 19, 2009
http://www.freepatentsonline.com/7492046.htmlThis patent from IBM teaches providing nanotubes of different length in a reprogrammable fuse method. Claim 1 reads:12. A structure operating method, comprising:providing a structure which includes(a) an electrically conductive layer,(b) N electrically conductive regions hanging over without touching the electrically conductive layer, wherein N is a positive integer and N is greater than 1, wherein the N electrically conductive regions are electrically connected together; and causing a first electrically conductive region of the N electrically conductive regions to touch the electrically conductive layer without causing the remaining N?1 electrically conductive regions to touch the electrically conductive layer.

US Patent 7492019 - High stiffness thin film cap for MEMS

Posted on February 19, 2009
http://www.freepatentsonline.com/7492019.htmlSilicon nitride and metal materials have been used to form cap layer for micromechanical pressure sensors and similar applications but can be susceptible to damage to to harsh environments of pressure differentials outside of a particular tolerance...

US Patent 7491968 - Memory using core/shell quantum dots

Posted on February 19, 2009
http://www.freepatentsonline.com/7491968.htmlThis patent from Samsung represents yet another variety of resistive switching non-volatile memory (RRAM). This variety is based on core/shell quantum dots in which a voltage controlled distribution of charge trapping sites in the quantum dots alter resistance states of memory cells...

US Patent 7491962 - RRAM with nanoparticle electrode

Posted on February 18, 2009
http://www.freepatentsonline.com/7491962.htmlNew systems of non-volatile memory such as RRAM or PRAM may be the next battle ground for nanoelectronics with a variety of companies proposing competing solutions based on different nanomaterials. This patent from Micron Technology teaches a chalcogenide memory using nanoparticles to achieve more predictable operation...

US Patent 7491883 - CNT shielding layer for coaxial cable

Posted on February 18, 2009
http://www.freepatentsonline.com/7491883.htmlThis is yet another carbon nanotube patent to Tsinghua University and Hon Hai Precision for shielding of a coaxial cable. Claim 1 reads: 1. A coaxial cable comprising:at least one conducting wire;at least one insulating layer, each insulating layer being respectively coated on a corresponding conducting wire;at least one shielding layer surrounding the at least one insulating layer, each shielding layer comprising a metal layer and one or more carbon nanotube films; anda sheath wrapping the at least one shielding layer.

US Patent 7491699 - Aromatic homodipeptide nanostructure

Posted on February 18, 2009
http://www.freepatentsonline.com/7491699.htmlIn addition to carbon-based nanotubes there are other types of nanotube structures being developed such as peptide nanotubes which may have some unique advantages to nanobioelectronics. This patent from Ramot At Tel Aviv University seems somewhat fundamental to a variety of peptide nanotubes...

US Patent 7491661 - Immersion lithography including nanoparticle suspension topcoat

Posted on February 18, 2009
http://www.freepatentsonline.com/7491661.htmlHigher resolution lithography is necessary to continue Moore's Law of increasing transistor density. One method to achieve such enhanced resolution is immersion lithography which uses a liquid medium to increase the index of refraction ...

US Patent 7491448 - Reticulated foam-like structure formed of nanoparticles

Posted on February 17, 2009
http://www.freepatentsonline.com/7491448.htmlThis patent from Energy Conversion Devices teaches a new type of hydrogen storage material with improvements in reversible storage capacity leading to reduced weight and more adaptability for automobile hydrogen fuel supply designs...

US Patent 7491428 - Self assembled monolayer used in CNT alignment

Posted on February 17, 2009
http://www.freepatentsonline.com/7491428.htmlAlignment of nanotubes is important in order to optimize properties such as electrical conductivity and thermal transport. This method from NASA is based on an electric field alignment approach in which a self assembled monolayer is used to facilitate the alignment...

US Patent 7491423 - ZnO nanostructure growth from nanoimprinted molecular monolayer

Posted on February 17, 2009
http://www.freepatentsonline.com/7491423.htmlThis patent from Sandia Corp. teaches a lower temperature method to form zinc oxide nanorods which can be useful to various applications including gas sensors. Claim 1 reads:1. A method to controllably grow zinc oxide nanorods on a surface, comprising:preparing a stamp with relief structures;inking said stamp with a solution comprising self-assembled monolayer molecules;contacting said stamp to a surface, thereby transferring said self-assembled monolayer molecules to said surface; andcontacting an aqueous zinc solution to said surface to grow zinc oxide nanorods on said surface.

US Patent 7491422 - Dip pen nanolithography with polymer coated tip

Posted on February 17, 2009
http://www.freepatentsonline.com/7491422.htmlThis patent from Nanoink teaches improvements in Dip Pen Nanolithography that enhance the tip lifespan and increase the diffusion rate leading to higher speed processing.Claim 1 reads:1. A method of direct-write nanolithography comprising:transporting an ink from a polymer-coated nanoscopic tip to a substrate to form a structure on the substrate,wherein the ink comprises solvent and the structure comprises internal hollows from direct transfer of the solvent to the substrate,wherein polymer adheres to the tip and is not transported to the substrate, and wherein the polymer is a hydrophobic elastomeric polymer having a glass transition temperature of about 25° C...

US Patent 7489537 - Optical nanoelectronic memory array

Posted on February 15, 2009
http://www.freepatentsonline.com/7489537.htmlThere has been a good amount of work by researchers at HP labs and elsewhere over the past decade in producing reconfigurable electronics systems as a next step after Moore's Law. So far most of these efforts have been directed to reconfigurable logic but another area which may benefit is reconfigurable analog electronics...

US 7489432 - Metal oxide nanowire electrochromic display

Posted on February 15, 2009
http://www.freepatentsonline.com/7489432.htmlElectrochromic displays are formed from chemicals capable of changing color upon application of a voltage. This patent from Ricoh teaches using metal oxide nanowires or nanotubes to form such a display having advantages in energy efficiency...

US Patent 7489428 - Variable threshold MEMS array actuator

Posted on February 15, 2009
http://www.freepatentsonline.com/7489428.htmlFor multi-gradation effects it is difficult to implement MEMS-based micromirrors formed from interferometric ribbons in an analog mode. This patent from IDC (now being developed by Qualcomm) teaches an alternative solution based on a halftone method...

US Patent 7489143 - Nanogripper with hold detection

Posted on February 11, 2009
http://www.freepatentsonline.com/7489143.htmlNanogrippers (aka nanotweezers) have been implemented by a variety of materials including nanotubes and silicon. In order to assure proper gripping an optical feedback system has been used. This patent teaches an alternative solution based on electrostatic detection...

US Patent 7489069 - Molybdenum nanotip backlight

Posted on February 11, 2009
http://www.freepatentsonline.com/7489069.htmlThis patent from Hon Hai Precision teaches a display backlight using nanotips formed of Molybdenum as an emission source which is noted to have a better life span and emission efficiency than carbon nanotube emitters...

US Patent 7488950 - Crosswire photosensor based on nanoparticle/molecular film

Posted on February 11, 2009
http://www.freepatentsonline.com/7488950.htmlA variety of nanoparticle and molecular films have been found to have photoelectric behavior useful for integration with CMOS and CCD imaging arrays. However to form CCD or CMOS arrays capacitive and/or transistor elements need to be fabricated...

US Patent 7488876 - Nitronium ion separation of carbon nanotubes

Posted on February 10, 2009
http://www.freepatentsonline.com/7488876.htmlThis patent from Samsung Corning Precision Glass teaches a method of semiconductor/metallic carbon nanotube separation based on nitronium ions. Claim 1 reads:1. A method of separating semiconducting type carbon nanotubes from a mixture of semiconducting and metallic carbon nanotubes, comprising the steps of:1) treating the carbon nanotube mixture with an organic solution containing nitronium ions,2) filtering the resulting mixture to recover remaining solids, and3) heat-treating the solids.

US Patent 7488671 - Masking nanoporous tempates

Posted on February 10, 2009
http://www.freepatentsonline.com/7488671.htmlNanoporous templates have been used for several years to grow uniform arrays of vertical nanowires and nanotubes on a substrate. This patent from General Electric teaches patterning the template using a mask to facilitate battery fabrication...

US Patent 7488520 - Nanoparticle modified packaging material for odor reduction

Posted on February 10, 2009
http://www.freepatentsonline.com/7488520.htmlThis patent from Kimberly-Clark Worldwide is based on the discovery that nanoparticles modified with metal ions can remove odorous compounds and teaches incorporating such nanoparticles in packaging for paper towels or toilet tissue...

US Patent 7486442 - Nanoparticle composite polarizer protective film

Posted on February 08, 2009
http://www.freepatentsonline.com/7486442.htmlPolarizing plates are useful for displays such as LCDs. This patent from Industrial Technology Research Institute teaches using nanoparticles to form polarizing plates with enhanced resistance to moisture permeability...

US Patent 7486434 - Nanotube electromagnetic radiation conversion

Posted on February 08, 2009
http://www.freepatentsonline.com/7486434.htmlRobert Crowley of Ambit Corp. was the first to recognize the potential of carbon nanotubes for optical energy conversion and has a series of continuations going back to 1997 based on the concept. This patent appears to be one of the broadest potentially covering applications in sensors, communications, and power generation...

US Patent 7486400 - Plasmon resonance structure with metal and dielectric nanoparticle layers

Posted on February 04, 2009
http://www.freepatentsonline.com/7486400.htmlPlasmon resonance is an amplifying effect associated with biosensing applications. This patent teaches a laminate nanoparticle system offering improvements in the electric field enhancement. Claim 1 reads:1...

US Patent 7485576 - Metallic nanoparticle patterning via groove formation

Posted on February 04, 2009
http://www.freepatentsonline.com/7485576.htmlThis patent from Samsung solves a problem related to damage of insulating layers from bottom gate electrodes in organic thin film transistors by placing metallic nanoparticles in grooves to serve as the gates...

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