Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8039160 | Multi-layer polyelectrolyte membrane Multi-layer polyelectrolyte membranes are described wherein at least one of the layers contains at least one acrylic resin or vinyl resin having at least one ionic or ionizable group, and at least one additional polymer. The polymer has small or large domain sizes w... | 10/18/2011 |
| 7960060 | Ionic conducting material containing an oligoether sulphate The invention relates to an ion-conducting material containing an oligoether sulfate. The material comprises an ionic compound dissolved in a solvating polymer. The ionic compound is a mixture of a lithium bis(trifluoromethanesulfonyl)imide and of at least on... | 06/14/2011 |
| 7923156 | Composite polymer electrolytes for a rechargeable lithium battery The composite electrolyte for use in a thin plate rechargeable lithium battery comprises a porous or micro-porous inert, multi-layered polymer separator laminate which carries an adherent second polymer coating containing a dissociable lithium compound, and the mult... | 04/12/2011 |
| 7875392 | Polymer electrolyte membrane having high durability and method for producing the same A polymer electrolyte membrane comprising: (a) a fluorinated polymer electrolyte having an ion exchange group, and (b) a basic polymer, wherein, optionally, at least a part of component (a) and at least a part of component (b) are chemically bonded to each other. A ... | 01/25/2011 |
| 7727675 | Polymer electrolyte, method of preparing the same, and fuel cell using the polymer electrolyte A polymer electrolyte includes a heat-treated polymerization product of a polyurethane-based compound and a polyethylene(meth)acrylic acid, wherein the polyurethane-based compound is produced by polymerizing a diisocyanate-based compound, a phosphoric acid-based pol... | 06/01/2010 |
| 7588862 | Composite polymer electrolytes for a rechargeable lithium battery The composite electrolyte for use in a thin plate rechargeable lithium battery comprises a porous or micro-porous inert, multi-layered polymer separator laminate which carries an adherent second polymer coating containing a dissociable lithium compound, and the mult... | 09/15/2009 |
| 7468226 | Porous film type solvent-free polymer electrolyte filled with oligomer/prepolymer electrolyte and secondary battery employing the same A solvent-free polymer electrolyte and a secondary battery employing the electrolyte are provided. The electrolyte includes: a porous film, including a first polymer and a second oligomer, the first polymer being at least one selected from the group consisting of po... | 12/23/2008 |
| 7455934 | Fluorocopolymer material with sulfonic acid functional groups as a solid polyelectrolyte for use in fuel cells The invention is a material for a solid polyelectrolyte, comprising a multi-segmented fluoropolymer that comprises a block copolymer and/or a graft copolymer, wherein the copolymer contains one or more blocks essentially consisting of segment A and one or more block... | 11/25/2008 |
| 7432019 | Solid electrolyte battery A solid electrolyte battery having improved energy density and safety, the solid electrolyte battery incorporating a positive electrode; a negative electrode disposed opposite to the positive electrode; a separator disposed between the positive electrode and the neg... | 10/07/2008 |
| 7422826 | In situ thermal polymerization method for making gel polymer lithium ion rechargeable electrochemical cells A single step, in situ curing method for making gel polymer lithium ion rechargeable cells and batteries is described. This method used a precursor solution consisting of monomers with multiple functionalities such as multiple acryloyl functionalities, a free-radica... | 09/09/2008 |
| 7410729 | Nonaqueous electrolyte cell with improved high temperature characteristics A non-aqueous electrolyte cell that excels in the high-temperature cycle characteristics and that is without the possibility of solution leakage. The non-aqueous electrolyte cell includes a polymer electrolyte. This polymer electrolyte is a polymerization of a prepo... | 08/12/2008 |
| 7399556 | Lithium cationic single-ion conducting filler-containing composite polymer electrolyte for lithium secondary battery and method of manufacturing the same Provided are a composite polymer electrolyte for a lithium secondary battery in which a composite polymer matrix multi-layer structure composed of a plurality of polymer matrices with different pore sizes is impregnated with an electrolyte solution, and a method of ... | 07/15/2008 |
| 7390595 | Method of preparing a crosslinked polymer in an electrolyte composition A crosslinked polymer obtained by allowing a polyfunctional electrophilic reagent to react on a nitrogen-containing polymer, an electrolyte containing the crosslinked polymer, and a photo-electrochemical cell having an electrically conductive substrate, a semiconduc... | 06/24/2008 |
| 7387852 | Polymer electrolyte and lithium battery using the same A polymer electrolyte extends the cycle life, improves the safety, and reduces the swelling of a battery, compared with a polymer electrolyte containing a poly(alkylene oxide) polymer. Also, a lithium battery utilizes the polymer electrolyte. The polymer electrolyte... | 06/17/2008 |
| 7381501 | Polymer electrolyte and proton conductive membrane A solid polymer electrolyte includes a polymer having a sulfonic group and shows high proton conductivity in a wide range of temperatures and humidities and is excellent in hot water resistance and chemical stability. A proton conductive membrane is composed of the ... | 06/03/2008 |
| 7378193 | Polysiloxane-based compound and solid polymer electrolyte composition using the same This invention relates to a polysiloxane-based compound and a solid polymer electrolyte composition prepared using the same. More particularly, the present invention relates to a polysiloxane-based polymer, which promotes easy cross-linking and also enables to contr... | 05/27/2008 |
| RE40302 | Polyelectrolyte, non-aqueous electrolyte, and electrical device containing the same Provided are a polymeric electrolyte or a nonaqueous electrolyte that can improve a transport rate of charge carrier ions by adding a compound having boron atoms in the structure, preferably one or more selected from the group consisting of compounds represented by ... | 05/06/2008 |
| 7358288 | Polymer membranes The invention relates to novel organic/inorganic hybrid membranes which have the following composition: a polymer acid containing —SO3H, —PO3H2, —COOH or B(OH)2 groups, a polymeric ease (optional), which contains pri... | 04/15/2008 |
| 7351775 | Ion conductive membrane made from a block copolymer and methods of making a block copolymer A block copolymer for use as a solid polymer electrolyte, said block copolymer having at least first and second segments, the first segments being hydrophilic segments provided with acidic substituents for proton transport and the second segments being hydrophobic s... | 04/01/2008 |
| 7347954 | Composition for polyelectrolytes, polyelectrolytes, electrical double layer capacitors and nonaqueous electrolyte secondary cells A polymer electrolyte-forming composition containing (A) a quaternary ammonium salt of general formula (1) below and (B) an ionic liquid can be converted into a polymer without compromising the excellent properties of the ionic liquid, thus enabling an electrolyte h... | 03/25/2008 |
| 7326499 | Alkaline storage battery Disclosed is an alkaline storage battery comprising: a positive electrode comprising nickel hydroxide; a negative electrode; and an electrolyte layer interposed between the positive electrode and the negative electrode. The electrolyte layer comprises a water absorb... | 02/05/2008 |
| 7309540 | Electrical power source designs and components Provided, among other things, is ion-conductive membrane assembly comprising: a porous core; and sandwiching the porous core therebetween, two ion-conductive membranes; wherein the porous core is adapted to retain a ion-conductive liquid. ... | 12/18/2007 |
| 7285360 | Polymer gel electrolyte composition and method of producing the same A polymer gel electrolyte composition includes a crosslinked polymer network matrix having a three-dimensional crosslinked structure that includes a solution of an electrolyte in a non-aqueous solvent, and a non-crosslinked polymer included within the crosslinked po... | 10/23/2007 |
| 7273677 | Cationic conductor The present invention provides a cationic conductor comprising a block copolymer comprising: a polymer moiety having a structural unit represented by formula (1): wherein R represents an organic group obtained vi... | 09/25/2007 |
| 7238448 | Cathode for air assisted battery A cathode for an air recovery alkaline battery is disclosed. The cathode contains at least about 60% by weight MnO2 and at least about 2% by weight of a hydrophobic polymer; the MnO2 consists essentially of electrochemically synthesized MnO | 07/03/2007 |
| 7235331 | Semi-Interpenetrating polymer network electrolyte, process for producing the same and battery using the same An electrolyte with high ion conductivity, a process for producing the same and a battery using the same, and a compound for the electrolyte. The electrolyte is set between a negative electrode and a positive electrode. The electrolyte includes a first polymer compo... | 06/26/2007 |
| 7230057 | Boron-containing compound, ion-conductive polymer and polyelectrolyte for electrochemical devices An object of the present invention is to provide a boron-containing compound capable of forming an ion-conductive polyelectrolyte having high ion-conductive properties, and a polymer of said compound. According to the present invention, there are provided a polymeri... | 06/12/2007 |
| 7226646 | Membranes and electrochemical cells incorporating such membranes One aspect of the invention provides an ion-conducting membrane comprising an ion-conducting region and a non-ion-conducting region. The ion-conducting region is formed by a plurality of ion-conducting passageways that extend through the membrane. The passageways ar... | 06/05/2007 |
| 7226701 | Polymer electrolyte with effective leakage resistance and lithium battery using the same A polymer electrolyte has improved leakage resistance and a lithium battery uses the polymer electrolyte. The polymer electrolyte includes a polymerization product of a polymer electrolyte forming composition that includes a multi-functional acrylate based compound,... | 06/05/2007 |
| 7226702 | Solid polymer electrolyte and method of preparation Disclosed is an improved solid electrolyte made of an interpenetrating network type solid polymer comprised of two compatible phases: a crosslinked polymer for mechanical strength and chemical stability, and an ionic conducting phase. The highly branched siloxane po... | 06/05/2007 |
| 7223491 | Fuel cells incorporating membranes A fuel cell has an ion-conducting membrane comprising an ion-conducting region and a non-ion-conducting region. The ion-conducting region is formed by a plurality of ion-conducting passageways that extend through the membrane. The passageways are filled with ion-con... | 05/29/2007 |
| 7223488 | Integrated fuel cell system A simplified PEM fuel cell system is integrated with a fuel processor and an exhaust gas oxidizer to ensure clean emissions. The fuel cell has an operating temperature of 100–200° C., and utilizes reformate fuel having a carbon monoxide level greater than 1000 pa... | 05/29/2007 |
| 7223495 | Non-aqueous electrolyte secondary battery A non-aqueous electrolyte secondary battery has a positive electrode having a positive electrode collector, on which a positive electrode active material layer containing a positive electrode active material as a complex oxide of Li and transition metals are formed,... | 05/29/2007 |
| 7220510 | Sulfonated poly(arylene) films as polyelectrolyte membranes Polyelectrolyte membranes suitable for use in a fuel cell are provided as a solid state sulfonation product of particular fluorinated polymers, or alternatively as a fluorination product of particular sulfonated polymers. A sulfonated polymer is provided that contai... | 05/22/2007 |
| 7214450 | Solid electrolyte battery A solid electrolyte battery having improved energy density and safety, the solid electrolyte battery incorporating a positive electrode; a negative electrode disposed opposite to the positive electrode; a separator disposed between the positive electrode and the neg... | 05/08/2007 |
| 7211352 | Single ion conductor-containing composite polymer electrolyte for lithium secondary battery and method of manufacturing the same Provided are a composite polymer electrolyte for a lithium secondary battery that includes a composite polymer matrix structure having a single ion conductor-containing polymer matrix to enhance ionic conductivity and a method of manufacturing the same. The composit... | 05/01/2007 |
| 7208804 | Crystalline or amorphous medium-K gate oxides, Y0and Gd0 A gate oxide and method of fabricating a gate oxide that produces a more reliable and thinner equivalent oxide thickness than conventional SiO2 gate oxides are provided. Also shown is a gate oxide with a conduction band offset of 2 eV or greater. Gate oxi... | 04/24/2007 |
| 7205218 | Method including forming gate dielectrics having multiple lanthanide oxide layers A dielectric film having a layer of a lanthanide oxide and a layer of another lanthanide oxide, and a method of fabricating such a dielectric film produce a reliable gate dielectric with a equivalent oxide thickness thinner than attainable using SiO2. A g... | 04/17/2007 |
| 7205620 | Highly reliable amorphous high-k gate dielectric ZrON A gate dielectric and method of fabricating a gate dielectric that produces a more reliable and thinner equivalent oxide thickness than conventional SiO2 gate oxides are provided. Gate dielectrics formed from metals such as zirconium are thermodynamically... | 04/17/2007 |
| 7198871 | Non-aqueous electrolyte secondary battery In a non-aqueous electrolyte secondary battery provided with a positive electrode, a negative electrode, and a non-aqueous electrolyte solution, a positive electrode active material is a mixture of lithium-manganese composite oxide and at least one of lithium-nickel... | 04/03/2007 |
