Pacesetter, Inc.

Her Majesty the Queen in Right of Canada As Represented by the Minister of Natural Resources

Sri International

Gas Research Institute

Stc Technologies Inc.

Naixiong Jiang

Gene A Bornzin

Taraneh Ghaffari Farazi

John W Poore

Sheldon Williams

Weiqun Yang

Angel Sanjurjo

Kai-Hung Lau

David M Lowe

Eric D Wachsman

Thomas Flavian Strange

Luke V Schneider

Timothy R Marshall

Christopher R Feger

Keith W Kardos

Palitha Jayaweera

Marie Johansson

Liqiang Jiang

Melissa A Moore

Robert T Rewick

Naheed Mufti

Victor Wong

Anastasia Canizales

A bioelectric battery may be used to power implantable devices. The bioelectric battery may have an anode electrode and a cathode electrode separated by an insulating member comprising a tube having a first end and a second end, wherein said anode is inserted into said first end of said tube and said cathode surrounds said tube such that the tube provides a support for the cathode electrode. The bioelectric battery may also have a membrane surrounding the cathode to reduce tissue encapsulation. Alternatively, an anode electrode, a cathode electrode surrounding the cathode electrode, a permeable membrane surrounding the cathode electrode. An electrolyte is disposed within the permeable membrane and a mesh surrounds the permeable membrane. In an alternative embodiment, a pacemaker housing acts as a cathode electrode for a bioelectric battery and an anode electrode is attached to the housing with an insulative adhesive.

Bioelectric battery for implantable device applications

The present invention is directed to a conductive polyethylenedioxythiophene (PEDOT) polymer coated electrode adapted for use as a cathode electrode of an electrolytic capacitor and a method of manufacturing the same. According to the present invention, a metal foil substrate is placed in an aqueous solution of a doped 3,4-ethylenedioxythiophene (EDOT) monomer and a co-solvent, to dissolve the EDOT monomer, and a current is applied until the desired thickness of the polymer coating is electrochemically deposited. Additionally, an organic acid is added to the aqueous solution to act as an oxidizer. In order to improve the uniformity and adherence of the coating a surfactant may also be added. In a preferred embodiment, the EDOT monomer and cosolvent are first mixed, and then added to a water solution of oxidizer and dopant. The polymer film is deposited electrochemically onto the substrate by applying a DC current between 0.05 mA/cmand 5.0 mA/cmfor 1 to 60 minutes, more preferably between about 0.13 mA/cmto about 0.26 mA/cmfor between 9 and 18 minutes, such that a conductive polyethylenedioxythiophene (PEDOT) coating is formed on the electrode surface. According to the present invention, the increased surface area of the coated cathode results in lower gas generation and, therefore, reduced capacitor swelling, reduced oxide buildup on the cathode and prevention of electrolysis. The present invention results in electrodes with a minimum capacitance of 1 mF/cm. The present invention also makes it possible to use thinner electrodes than conventional aluminum electrodes, thereby reducing the physical dimensions of the capacitor.

High surface area cathode for electrolytic capacitors using conductive polymer

A method for coating stainless steel in which a metallic material layer of Cr and alloys of Cr and at least one of Mo, W, Ni, Si, Ti, Zr is deposited onto a metal substrate. The metallic material layer is then annealed so as to form a diffusion layer between the metallic protective coating and the metal substrate. Thereafter, the metallic material layer may be passivated, forming a stable composition of at least one of carbides, borides, nitrides, silicides, oxides, and mixtures thereof on the metallic protective coating. The protective coatings of this invention significantly reduce the corrosion rate of stainless steel used in bromide-based absorption systems.

Corrosion-resistant coatings for steels used in bromide-based absorption cycles

An ionic conductor has been developed which exhibits both hydrogen ion conductivity and electronic conductivity. The conductor is a perovskite-type oxide represented by the general formula: ABO,where A consists of at least one element selected from the group consisting of Ba, Ca, Mg and Sr and B is Ce,M,where M is a multivalent dopant metal, preferably Eu or Tb, and x is greater than 0 and less than 1. It is particularly useful in processes in which hydrogen is separated from a hydrogen-containing gas, e.g. in conversion of natural gas, operation of hydrogen fuel cells, etc.

Hydrogen permeation through mixed protonic-electronic conducting materials

Two-phase hydrogen permeation membrane

The invention relates to a method for producing activated, substantially monodisperse, phosphorescent particles and particles formed thereby. The method suspends substantially monodisperse, phosphor-precursor particles in a fluidizing gas and then introduces a reactive gas to contact the suspended phosphor-precursor particles. Heating the suspended phosphor-precursor particles to a reaction temperature then forms unactivated phosphorescent particles. In another embodiment, the phosphor-precursor particles may be heated to a reaction temperature where they decompose to form the unactivated phosphor particles. The unactivated phosphorescent particles suspended within the fluidizing gas are activated by heating the unactivated phosphorescent particles to an activation temperature forming activated, substantially monodisperse, phosphorescent particles.

Production of substantially monodisperse phosphor particles

Growing community of inventors

Mt. View, CA, United States of America

Naixiong Jiang