Silver Base Patents (Class 420/501)
  • Patent number: 10843273
    Abstract: The present invention relates to methods of purifying nanostructures. The nanostructures may be silver nanowires.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: November 24, 2020
    Assignee: QUANTUM CHEMICAL TECHNOLOGIES (SINGAPORE) PTE. LTD.
    Inventors: Kai Hwa Chew, Meng Kiong Lim, Yong Ling Wu, Hui Huang
  • Patent number: 10661348
    Abstract: The present invention relates to the use of a compound as a capping agent for controlling or modifying the growth of silver nanowires in a polyol method. The invention also relates to a corresponding method of making silver nanowires. And even further, the present invention relates to a product comprising silver nanowires having adsorbed to their surface a capping agent compound.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: May 26, 2020
    Assignee: BASF SE
    Inventors: Li Chen, Friederike Fleischhaker, Andrea Misske, Sylke Haremza
  • Patent number: 10610935
    Abstract: The present disclosure relates to a metal nanowire having a high aspect ratio and a method of preparing the metal nanowire having a high aspect ratio without using an organic stabilizer.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: April 7, 2020
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Byungkwon Lim, Shingyu Bok, Hwansu Sim
  • Patent number: 10500637
    Abstract: The invention discloses a silver-chromium alloy nanowire having a diameter of 18 to 60 nm, a length of 5 to 100 ?m, wherein a molar ratio of the silver to chromium is 1:0.01-3. The preparation method of the silver-chromium alloy nanowire comprises the steps of: a. preparing a reaction solution: formulating a silver source, a chromium source, polyvinylpyrrolidone and a reductive agent into a reaction solution, or adding the materials into deionized water to formulate a reaction solution; and b. performing a reductive reaction: performing a reductive reaction by maintaining the reaction vessel at a temperature of 120° C. to 200° C. for 2-10 hours to obtain a silver-chromium alloy nanowire suspension. The minimum diameter of the silver-chromium alloy nanowire of the present invention may reach 18 nm and its length is usually 20 ?m or above. Thus, it has a broad application prospect.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: December 10, 2019
    Assignee: BEIJING UNIVERSITY OF CHEMICAL TECHNOLOGY
    Inventors: Xiaoming Sun, Cheng Wang
  • Patent number: 10220441
    Abstract: A method for producing silver nanowires, containing reduction-precipitating silver in the form of wire in an alcohol solvent having dissolved therein a silver compound, the deposition being performed in the alcohol solvent having dissolved therein a chloride, a bromide, an alkali metal hydroxide, an aluminum salt, and an organic protective agent, the molar ratio Al/OH of the total Al amount of the aluminum salt dissolved in the solvent and the total hydroxide ion amount of the alkali metal hydroxide dissolved therein being from 0.01 to 0.40, the molar ratio OH/Ag of the total hydroxide ion amount of the alkali metal hydroxide dissolved in the solvent and the total Ag amount of the silver compound dissolved therein being from 0.005 to 0.50.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: March 5, 2019
    Assignee: DOWA HOLDINGS CO., LTD.
    Inventors: Hirotoshi Saito, Daisuke Kodama, Kimitaka Sato
  • Patent number: 10213838
    Abstract: A production method of silver nanowires exhibits a yield enhancement effect for a protective agent other than PVP. The method for producing silver nanowires includes depositing a silver linear structure, which is referred to as silver nanowires, in an alcohol solvent having a silver compound, a halogen compound, and an organic protective agent dissolved therein. A deposition reaction of silver is performed in a state where aluminum nitrate is further dissolved in the solvent, the total amount of aluminum nitrate dissolved in the solvent being from 0.01 to 0.50 in terms of Al/Ag molar ratio with respect to the total amount of the silver compound. The organic protective agent is, for example, one containing one or more kinds of alkylated PVP and a PVP-PVA graft copolymer.
    Type: Grant
    Filed: January 19, 2015
    Date of Patent: February 26, 2019
    Assignees: THE UNIVERSITY OF SHIGA PREFECTURE, DOWA HOLDINGS CO., LTD.
    Inventors: Jeyadevan Balachandran, Jhon Lehman Cuya Huaman, Daisuke Kodama
  • Patent number: 10130992
    Abstract: The present invention is directed to a process for making silver nanostructures, comprising reacting at least one polyol and at least one silver compound that is capable of producing silver metal when reduced, in the presence of a source of chloride or bromide ions, at least one copolymer, and at least one acid scavenger. The present invention is also directed to silver nanostructures made by the processes described herein.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: November 20, 2018
    Assignee: RHODIA OPERATIONS
    Inventors: Ahmed Alsayed, Adham Ahmed, Chantal Badre, Lawrence Alan Hough, Celine Anna Simone Burel
  • Patent number: 10022799
    Abstract: The present invention provides a method for producing a silver powder, the method being capable of producing a silver powder with high productivity and at low cost, the silver powder having an average particle diameter of 0.3 to 2.0 ?m and a narrow particle size distribution, and provides a silver powder produced by the production method. According to the present invention, the method for producing a silver powder includes: quantitatively and continuously supplying each of a silver solution containing a silver complex and a reductant solution to a flow path; and quantitatively and continuously reducing a silver complex in a reaction solution obtained by mixing the silver solution with the reductant solution in the flow path, wherein the reaction solution is made to contain a dispersant, and also a silver concentration in the reaction solution is adjusted to be in a range of 5 to 75 g/L.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: July 17, 2018
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Yoshihiro Okabe, Kenya Ito, Shuuji Okada, Masamu Nishimoto, Akihiro Murakami, Shintaro Ishikawa
  • Patent number: 9956616
    Abstract: Disclosed are a wire and a method for manufacturing the same. The method includes heating a solvent, adding a capping agent to the solvent, and forming a metallic wire by adding a metallic compound to the solvent. The solvent includes a first solvent having a first reduction power and a second solvent having a second reduction power greater than the first reduction power. The capping agent includes a first capping agent containing a polymer having a first molecular weight, and a second capping agent containing a polymer having a second molecular weight greater than the first molecular weight.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: May 1, 2018
    Assignees: LG INNOTEK CO., LTD., NANOPYXIS CO., LTD.
    Inventors: Joon Rak Choi, Jong Woon Moon, Young Sun You, Yong Sang Cho, Kyoung Hoon Chai, Hyeok Soo Suh, Sang Hoon Lee, Yong Sang Lee, Won Jong Choi
  • Patent number: 9734929
    Abstract: Example embodiments relate to a composition for forming a solar cell electrode, and a solar cell electrode prepared using the composition. The composition for forming a solar cell electrode includes a silver (Ag) powder, a glass frit, and an organic vehicle, wherein the glass frit includes silver (Ag); tellurium (Te); and at least one selected from the group of lithium (Li), sodium (Na), and potassium (K), a molar ratio of the silver (Ag):the tellurium (Te) included in the glass frit is in a range of about 1:0.1 to about 1:50, and a molar ratio of the silver (Ag):lithium (Li), sodium (Na) or potassium (K) is in a range of about 1:0.01 to about 1:10. The solar cell electrode prepared using the composition has excellent fill factor and conversion efficiency due to minimized contact resistance (Rc) and series resistance (Rs).
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: August 15, 2017
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Sang Hee Park, Hyun Jin Koo, Dae Sub Song
  • Patent number: 9636746
    Abstract: Provided is a method for producing Ag nanowires, including, heating a precursor solution that includes: an Ag salt; a water-soluble polymer; a surfactant, or a halide of metal ions having a standard reduction potential of ?0.1 to ?0.9V as a metal catalyst; and a reduction solvent, to produce the Ag nanowires. According to this method, a time for synthesizing nanowires may be considerably decreased, and an amount of Ag precursor discarded without reaction may be effectively reduced. As a result, the Ag nanowires may be produced with high efficiency and mass-production thereof through a simple scale-up may be successfully achieved.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: May 2, 2017
    Assignee: Nanotech & Beyond Co., Ltd.
    Inventors: Sang-Ho Kim, Suk-Sik Moon, Chang-Wan Bae, Dong Min Seo
  • Patent number: 9528168
    Abstract: A method for manufacturing a nanowire is provided. A solvent is heated. A catalyst is added to the solvent. A metal compound is added to the solvent to form a metal nanowire. The metal nanowire is refined. In the refining of the metal nanowire, the catalyst and a refinement material to converting an insoluble material generated by the catalyst into a soluble material may be added to the solvent. The catalyst may include NaCl and at least one selected from the group consisting of Mg, K, Zn, Fe, se, Mn, P, Br and I.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: December 27, 2016
    Assignees: LG INNOTEK CO., LTD., NANOPYXIS CO., LTD.
    Inventors: Jong Woon Moon, Woo Ju Jeong, Joon Rak Choi, Soung Kyu Park, Won Jong Choi, Sang Hoon Lee, Yong Sang Lee, Hyeok Soo Seo
  • Patent number: 9327348
    Abstract: Preparation methods, compositions, and articles useful for electronic and optical applications are disclosed. Such methods reduce metal ions to metal nanowires in the presence of bromide ions, IUPAC Group 14 elements in their +2 oxidation state, and optionally chloride ions. The product nanowires are useful in electronics applications.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: May 3, 2016
    Inventors: Junping Zhang, David R. Whitcomb
  • Patent number: 9200350
    Abstract: A silver alloy with exceptional resistance to both tarnishing and firestain includes at least 92.50% silver, from 0.70 to 1.65% germanium, from 1.30 to 1.80% indium, from 0.000 to 0.015% boron, not more than 1.0% palladium and not more than 0.20% copper.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: December 1, 2015
    Assignee: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
    Inventors: Thierry Copponex, Kang Ping Haung
  • Patent number: 9080255
    Abstract: Monodispersed silver nanowires are formed by a process utilizing a polyol. A capping agent is mixed in the polyol to form a substantially homogeneous solution. The solution is heated to a level below a boiling point of the polyol. The solution is diluted with a diluent which may consist of water and/or alcohol, and the solution is centrifuged to produce the silver nanowires.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: July 14, 2015
    Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Cheng Yang, Matthew Ming Fai Yuen
  • Publication number: 20150147410
    Abstract: The present disclosure relates to dressings for wounds, methods of preparing thereof and methods of using thereof. Also, the present disclosure relates to a wound dressing comprising: bio-cellulose; and silver nanoparticles, wherein the concentration of silver nanoparticles is about 1000 ?g/100 cm2 or less or about 1000 ?g/cm3 or less, and wherein the silver nanoparticles have a localized surface Plasmon resonance maxima of about 600 nm to about 800 nm.
    Type: Application
    Filed: January 29, 2013
    Publication date: May 28, 2015
    Inventors: Adisorn Apasuthirat, Sombat Rungsilp
  • Patent number: 9010617
    Abstract: In a reflow process, a plurality of solder bumps between a first workpiece and a second workpiece is melted. During a solidification stage of the plurality of solder bumps, the plurality of solder bumps is cooled at a first cooling rate. After the solidification stage is finished, the plurality of solder bumps is cooled at a second cooling rate lower than the first cooling rate.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: April 21, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chen-Hua Yu, Wen-Yao Chang, Chien Rhone Wang, Kewei Zuo, Chung-Shi Liu
  • Patent number: 8999206
    Abstract: Metal nanoparticles having improved migration resistance are provided. The present invention relates to a method for manufacturing composite nanoparticles including obtaining composite nanoparticles containing at least silver and copper in a single particle by heat treating a mixture containing an organic silver compound and an organic copper compound at a temperature of 150° C. or more in a non-oxidative atmosphere in the presence of a tertiary amine compound represented by the general formula R1R2R3N (wherein R1 through R3 are optionally substituted alkyl groups or aryl groups that may be the same or different, R1 through R3 may be linked in a ring, and the number of carbon atoms in each of R1 through R3 is 5 through 18 and may be the same or different).
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: April 7, 2015
    Assignees: Osaka Municipal Technical Research Institute, Daiken Chemical Co., Ltd.
    Inventors: Masami Nakamoto, Mari Yamamoto, Yukiyasu Kashiwagi, Yukio Yoshida, Hiroshi Kakiuchi, Shinsuke Matsumura
  • Patent number: 8992701
    Abstract: After a reducing agent is added to a water reaction system containing silver ions to deposit silver particles by reduction, the silver particles are dried to obtain a silver powder which is heat-treated at a temperature of higher than 100° C. and lower than 400° C. The silver powder thus heat-treated has a maximum coefficient of thermal expansion of not greater than 1.5% at a temperature of 50° C. to 800° C., and has no heating peak when the silver powder is heated from 50° C. to 800° C. The silver powder has an ignition loss of not greater than 1.0% when the silver powder is ignited until the weight of the silver powder is constant at 800° C. The silver powder has a tap density of not less than 2 g/cm3 and a BET specific surface area of not greater than 5 m2/g.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: March 31, 2015
    Assignee: Dowa Mining Co., Ltd.
    Inventors: Takatoshi Fujino, Kozo Ogi
  • Publication number: 20150086417
    Abstract: The present invention relates to a new silver-based electrical contact material, in which silver is in a continuous phase and carbon being in a nano-dispersed phase is dispersed in continuous phase silver. The content of the dispersed phase carbon in the silver-based electrical contact material can be 0.02% to 5% by weight, on the basis of the total weight of the silver-based electrical contact material. According to the present invention, the carbon contains carbon in a diamond form. Such a silver-based electrical contact material shows excellent mechanical wear resistance and electrical performance.
    Type: Application
    Filed: March 29, 2013
    Publication date: March 26, 2015
    Applicant: Schneider Electric Industries SAS
    Inventor: Nan Liu
  • Publication number: 20150064483
    Abstract: A method of depositing a film of a metal having a volatilization temperature higher than 350° C., as well as, a composite material including the same are disclosed. The method can include providing the source material in a vacuum deposition processing chamber, and providing a substrate in the vacuum deposition processing chamber. The substrate can be spaced apart from, but in fluid communication with, the source material, and also maintained at a substrate temperature that is lower than the volatilization temperature. The method can also include reducing an internal pressure of the vacuum deposition processing chamber to a pressure between 0.1 and 14,000 pascals; volatilizing the source material into a volatilized metal by heating the source material to a first temperature that is higher than the volatilization temperature; and transporting the volatilized metal to the substrate using a heated carrier gas, whereby the volatilized metal deposits on the substrate and forms the metal film.
    Type: Application
    Filed: September 3, 2014
    Publication date: March 5, 2015
    Inventors: Mark E. Thompson, Francisco F. Navarro
  • Publication number: 20150034883
    Abstract: While a water reaction system containing silver ions is irradiated with ultrasonic waves to cause cavitation therein, a reducing agent containing solution, which contains an aldehyde as a reducing agent, is mixed with the water reaction system to deposit silver particles, the solid-liquid separation of which is carried out, and thereafter, the separated silver particles are washed and dried to produce a spherical silver powder which has a closed cavity in each particle thereof.
    Type: Application
    Filed: February 12, 2013
    Publication date: February 5, 2015
    Inventors: Koji Hirata, Noriaki Nogami
  • Patent number: 8936856
    Abstract: The present invention relates to an Ag alloy film. Particularly, it is preferably used as a reflective film or semi-transmissive reflective film for an optical information recording medium having high thermal conductivity/high reflectance/high durability in the field of optical information recording media, an electromagnetic-shielding film excellent in Ag aggregation resistance, and an optical reflective film on the back of a reflection type liquid crystal display device, or the like. The Ag alloy film of the present invention comprises an Ag base alloy containing Bi and/or Sb in a total amount of 0.005 to 10% (in terms of at %). Further, the present invention relates to a sputtering target used for the deposition of such an Ag alloy film.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: January 20, 2015
    Assignee: Kobe Steel, Ltd.
    Inventors: Yuuki Tauchi, Katsutoshi Takagi, Junichi Nakai, Toshiki Sato
  • Publication number: 20150017258
    Abstract: A gold nanoparticle-based assay for the detection of a target molecule, such as Hepatitis C Virus (HCV) RNA in serum samples, that uses positively charged gold nanoparticles (AuNPs) in solution based format. The assay has been tested on 74 serum clinical samples suspected of containing HCV RNA, with 48 and 38 positive and negative samples respectively. The developed assay has a specificity and sensitivity of 96.5% and 92.6% respectively. The results obtained were confirmed by Real-Time PCR, and a concordance of 100% for the negative samples and 89% for the positive samples has been obtained between the Real-Time PCR and the developed AuNPs based assay. Also, a purification method for the HCV RNA has been developed using HCV RNA specific probe conjugated to homemade silica nanoparticles. These silica nanoparticles have been synthesized by modified Stober method. This purification method enhanced the specificity of the developed AuNPs assay.
    Type: Application
    Filed: January 31, 2013
    Publication date: January 15, 2015
    Applicant: AMERICAN UNIVERSITY OF CAIRO (AUC)
    Inventors: Hassan Mohamed El-Said Azzazy, Sherif Mohamed Shawky Abduo, Kamel Abdelmenem Mohamed Eid, Bassem Samy Shenouda Guirgis
  • Publication number: 20150001452
    Abstract: The present invention provides silver nano-particles that are excellent in stability and develop excellent conductivity by low-temperature calcining, a producing method for same, and a silver coating composition comprising the silver nano-particles.
    Type: Application
    Filed: January 7, 2013
    Publication date: January 1, 2015
    Inventors: Masato Kurihara, Kazuki Okamoto, Yuki Iguchi
  • Publication number: 20140376347
    Abstract: Disclosed herein are near field transducers (NFTs) that include either silver, copper, or aluminum and one or more secondary elements.
    Type: Application
    Filed: June 24, 2014
    Publication date: December 25, 2014
    Inventors: Justin Glen Brons, Tong Zhao, Sethuraman Jayashankar, Steve C. Riemer, Michael C. Kautzky
  • Publication number: 20140348203
    Abstract: Provided in one embodiment is a method of identifying a stable phase of an ordering binary alloy system comprising a solute element and a solvent element, the method comprising: determining at least three thermodynamic parameters associated with grain boundary segregation, phase separation, and intermetallic compound formation of the ordering binary alloy system; and identifying the stable phase of the ordering binary alloy system based on the first thermodynamic parameter, the second thermodynamic parameter and the third thermodynamic parameter by comparing the first thermodynamic parameter, the second thermodynamic parameter and the third thermodynamic parameter with a predetermined set of respective thermodynamic parameters to identify the stable phase; wherein the stable phase is one of a stable nanocrystalline phase, a metastable nanocrystalline phase, and a non-nanocrystalline phase.
    Type: Application
    Filed: May 20, 2014
    Publication date: November 27, 2014
    Applicant: Massachusetts Institute of Technology
    Inventors: Heather A. Murdoch, Christopher A. Schuh
  • Publication number: 20140346412
    Abstract: The present invention provides silver nano-particles that are excellent in stability and develop excellent conductivity by low-temperature calcining, a producing method for same, and a silver coating composition comprising the silver nano-particles.
    Type: Application
    Filed: January 7, 2013
    Publication date: November 27, 2014
    Inventors: Kazuki Okamoto, Yuki Iguchi, Masato Kurihara
  • Publication number: 20140350147
    Abstract: A method of producing metal flakes (72?) is provided. The method includes: applying a layer of ionic liquid (70) to a substrate (24); forming a layer of metal (70) on the substrate (24) over the ionic liquid (70); and removing the layer of metal (70) from the substrate (24).
    Type: Application
    Filed: August 24, 2012
    Publication date: November 27, 2014
    Applicant: ECKART AMERICA CORPORATION
    Inventor: John Moffatt
  • Publication number: 20140342104
    Abstract: An Ag alloy film for use in reflective electrodes is provided, which has a low electrical resistivity and a high reflectance that are almost at the same levels as those of an Ag film, and has excellent oxidation resistance. An Ag alloy film for reflective electrodes, which can be used in a reflective electrode and is characterized in that at least one element selected from the group consisting of In and Zn is contained in an amount of 0.1 to 2.0 atomic %.
    Type: Application
    Filed: December 19, 2012
    Publication date: November 20, 2014
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Yuki Tauchi, Yoko Shida
  • Publication number: 20140332733
    Abstract: Provided herein are nanofibers and processes of preparing nanofibers. In some instances, the nanofibers are metal and/or ceramic nanofibers. In some embodiments, the nanofibers are high quality, high performance nanofibers, highly coherent nanofibers, highly continuous nanofibers, or the like. In some embodiments, the nanofibers have increased coherence, increased length, few voids and/or defects, and/or other advantageous characteristics. In some instances, the nanofibers are produced by electrospinning a fluid stock having a high loading of nanofiber precursor in the fluid stock. In some instances, the fluid stock comprises well mixed and/or uniformly distributed precursor in the fluid stock. In some instances, the fluid stock is converted into a nanofiber comprising few voids, few defects, long or tunable length, and the like.
    Type: Application
    Filed: August 30, 2012
    Publication date: November 13, 2014
    Applicant: CORNELL UNIVERSITY
    Inventors: Yong Lak Joo, Nathaniel S. Hansen, Daehwan Cho
  • Publication number: 20140335328
    Abstract: Provided is a nanowire manufacturing substrate, comprising a grid base layer on a substrate and a grid pattern formed by patterning the grid base layer, the grid pattern being disposed to produce a nanowire on a surface thereof. According to the present invention, the width and height of the nanowire can be adjusted by controlling the wet-etching process time period, and the nanowire can be manufactured at a room temperature at low cost, the nanowire can be mass-manufactured and the nanowire with regularity can be manufactured even in case of mass production.
    Type: Application
    Filed: July 28, 2014
    Publication date: November 13, 2014
    Inventors: Young Jae Lee, Kyoung Jong Yoo, Jun Lee, Jin Su Kim, Jae Wan Park
  • Publication number: 20140322069
    Abstract: Methods of producing metal nanowires, compositions, and articles are disclosed. Such methods allow production of metal nanowires with reproducibly uniform diameter and length, even in the presence of catalyst concentration variation. Such metal nanowires are useful for electronics applications.
    Type: Application
    Filed: July 9, 2014
    Publication date: October 30, 2014
    Inventors: David R. Whitcomb, William D. Ramsden, Doreen C. Lynch
  • Publication number: 20140306167
    Abstract: The present invention provides a method for producing silver powder having a low content of chlorine, and provides a conductive paste containing the obtained silver powder. In the case where silver powder is obtained in such a manner that a solution containing a silver complex obtained by dissolving silver chloride with a complexing agent is mixed with a reducing agent solution to reduce the silver complex, an organic compound having a hydrophilic group which is positively charged when ionized in water is added to both the solution containing the silver complex and the reducing agent solution, or added to either the solution containing the silver complex or the reducing agent solution, whereby adsorption of the organic compound onto the surfaces of silver particles precedes adsorption of chlorine thereonto, and thus adsorption of chlorine onto silver particles is controlled.
    Type: Application
    Filed: November 15, 2012
    Publication date: October 16, 2014
    Inventors: Toshiaki Terao, Eiji Ishida
  • Publication number: 20140308158
    Abstract: The present invention addresses the problem of providing a novel, sold metal alloy. Provided is a metal alloy containing two or more types of metal, wherein an equilibrium diagram of the metal alloy shows the two or more types of metal in a finely mixed state at the nanolevel in a specific region where the two types of metal are unevenly distributed. This metal alloy has a substitutional solid solution of the two or more types of metal as the principal constituent thereof. This metal alloy is preferably one obtained by precipitation after mixing ions of two or more types of metal and a reducing agent in a thin-film fluid formed between processing surfaces, at least one of which rotates relative to the other, which are arranged so as to face one another and are capable of approaching and separating from one another.
    Type: Application
    Filed: November 16, 2012
    Publication date: October 16, 2014
    Inventors: Masaki Maekawa, Daisuke Honda, Masakazu Enomura, Kazuya Araki
  • Patent number: 8858877
    Abstract: This invention provides sputtering target materials having high reflectance and excellent heat resistance, which are formed of Ag base alloys formed by adding a specific, minor amount of P to Ag and alloying them.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: October 14, 2014
    Assignee: Ishifuku Metal Industry Co., Ltd.
    Inventors: Koichi Hasegawa, Nobuo Ishii
  • Patent number: 8841375
    Abstract: The instant invention relates to easily isolable and re-dispersible transition metal nanoparticles, their manufacture and use as IR-absorbers, in particular in transparent thermoplastic or crosslinkable polymers. A further aspect of the invention is a composition of these transition metal nanoparticles and thermoplastic or crosslinkable polymers and an architectural or automotive glazing containing these transition metal nanoparticles.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: September 23, 2014
    Assignee: BASF SE
    Inventors: Francesca Peri, Samanta Cimitan, Markus Grob
  • Publication number: 20140264171
    Abstract: A continuous flow reactor for the efficient synthesis of nanoparticles with a high degree of crystallinity, uniform particle size, and homogenous stoichiometry throughout the crystal is described. Disclosed embodiments include a flow reactor with an energy source for rapid nucleation of the procurors following by a separate heating source for growing the nucleates. Segmented flow may be provided to facilitate mixing and uniform energy absorption of the precursors, and post production quality testing in communication with a control system allow automatic real-time adjustment of the production parameters. The nucleation energy source can be monomodal, multimodal, or multivariable frequency microwave energy and tuned to allow different precursors to nucleate at substantially the same time thereby resulting in a substantially homogenous nanoparticle. A shell application system may also be provided to allow one or more shell layers to be formed onto each nanoparticle.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: Shoei Electronic Materials, Inc.
    Inventors: David M. Schut, Patrick M. Haben, Thomas E. Novet, Daniel A. Peterson, George M. Williams
  • Publication number: 20140264394
    Abstract: A light emitting diode with a front surface adapted to emit light and a rear surface is provided with a reflective coating on the rear surface, the reflective coating being primarily silver and containing either 0.4% bismuth or a combination of 0.5% tin, 0.2% copper, and 0.2% samarium.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 18, 2014
    Applicant: MATERION CORPORATION
    Inventors: George M. Wityak, Alan Duckham
  • Publication number: 20140271340
    Abstract: A silver alloy with exceptional resistance to both tarnishing and firestain includes at least 92.50% silver, from 0.70 to 1.65% germanium, from 1.30 to 1.80% indium, from 0.000 to 0.015% boron, not more than 1.0% palladium and not more than 0.20% copper.
    Type: Application
    Filed: October 16, 2012
    Publication date: September 18, 2014
    Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
    Inventors: Thierry Cpponex, Kang Ping Haung
  • Patent number: 8815149
    Abstract: A semi-reflective film and reflective film for an optical recording medium, which is made of a silver alloy having a composition consisting of 0.001 to 0.1% by mass of Ca, 0.05 to 1% by mass of Mg, and a remainder containing Ag and inevitable impurities, and a target which is made of a silver alloy having a composition consisting of 0.001 to 0.1% by mass of Ca, 0.05 to 1% by mass of Mg, and a remainder containing Ag and inevitable impurities; and a semi-reflective film for an optical recording medium, which is made of a silver alloy having a composition consisting of 0.05 to 1% by mass of Mg, 0.05 to 1% by mass of one or more of Eu, Pr, Ce and Sm, and a remainder containing Ag and inevitable impurities, and an Ag alloy sputtering target for forming a semi-reflective film for an optical recording medium, which is made of a silver alloy having a composition consisting of 0.05 to 1% by mass of Mg, 0.05 to 1% by mass of one or more of Eu, Pr, Ce and Sm, and a remainder containing Ag and inevitable impurities.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: August 26, 2014
    Assignee: Mitsubishi Materials Corporation
    Inventors: Shozo Komiyama, Gou Yamaguchi, Akifumi Mishima
  • Publication number: 20140227519
    Abstract: Methods of preparing metal nanowire are disclosed that employ quaternary phosphonium salts. Such processes can produce long and thin nanowires. Compositions and articles comprising such nanowires are useful in electronics applications.
    Type: Application
    Filed: April 17, 2014
    Publication date: August 14, 2014
    Applicant: Carestream Health, Inc.
    Inventor: David R. Whitcomb
  • Patent number: 8802151
    Abstract: The instant invention relates to shaped transition metal particles, in particular in the form of a dispersion in an aqueous and/or organic medium, the manufacture thereof and their use as an infrared (IR) absorbing agent, an IR curing agent for coatings, an additive in conductive formulations, an antimicrobial agent or for sensoring organic and/or inorganic compounds. Further, the invention relates to dispersions comprising said shaped particles and an aqueous and/or organic medium, such as a thermoplastic or crosslinkable polymer, as well as to antimicrobial compositions and products.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: August 12, 2014
    Assignee: BASF SE
    Inventors: Nikolay A. Grigorenko, Michael Muehlebach, Florian Muehlebach
  • Publication number: 20140212324
    Abstract: Provided by the present invention are a fine crystallite high-function metal alloy member, a method for manufacturing the same, and a business development method thereof, in which a crystallite of a metal alloy including a high-purity metal alloy whose crystal lattice is a face-centered cubic lattice, a body-centered cubic lattice, or a close-packed hexagonal lattice is made fine with the size in the level of nanometers (10?9 m to 10?6 m) and micrometers (10?6 m to 10?3 m), and the form thereof is adjusted, thereby remedying drawbacks thereof and enhancing various characteristics without losing superior characteristics owned by the alloy.
    Type: Application
    Filed: April 10, 2012
    Publication date: July 31, 2014
    Applicant: THREE-O CO., LTD.
    Inventor: Kazuo Ogasa
  • Publication number: 20140205853
    Abstract: A transparent conductive coating film comprising at least a metal nanowire, wherein the transparent conductive coating film has a ratio of a bent wire in the metal nanowire of 10% or less, a surface resistivity of 150 ?/? or less, and a haze value of 1.0% or less.
    Type: Application
    Filed: March 25, 2014
    Publication date: July 24, 2014
    Applicant: FUJIFILM CORPORATION
    Inventors: Takeshi FUNAKUBO, Kenichi Yamamoto, Nori Miyagishima
  • Patent number: 8784702
    Abstract: Copper-containing nanoparticles with excellent oxidation resistance is provided. The present invention relates to a method for manufacturing copper-containing nanoparticles including obtaining copper-containing nanoparticles that contain an organic component by heat treating an organic copper compound at a temperature equal to or higher than a decomposition initiation temperature of the compound and lower than a complete decomposition temperature of the compound in a non-oxidative atmosphere in the presence of an organic material containing a 1,2-alkanediol having 5 or more carbon atoms and/or a derivative thereof.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: July 22, 2014
    Assignees: Osaka Municipal Technical Research Institute, Daiken Chemical Co., Ltd.
    Inventors: Masami Nakamoto, Mari Yamamoto, Yukiyasu Kashiwagi, Yukio Yoshida, Hiroshi Kakiuchi, Shinsuke Matsumura
  • Publication number: 20140196772
    Abstract: The process for making silver powder particles with small size crystallites uses a combination of gum arabic and maleic acid with the reduction of a silver salt with ascorbic acid, Silver thick film paste containing these silver powder particles can be used in electronic applications to form electrodes for semiconductor devices and, in particular, solar cells.
    Type: Application
    Filed: March 18, 2014
    Publication date: July 17, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: ROBERTO IRIZARRY-RIVERA, Haixin Yang
  • Publication number: 20140199496
    Abstract: A method for producing a low-emissivity layer system includes the steps of forming at least one low-emissivity layer on at least one side of the substrate by deposition, and subsequent brief tempering of a deposited low-emissivity layer by electromagnetic radiation, avoiding an immediate heating up of the substrate. A device for performing the method includes a flash lamp arrangement.
    Type: Application
    Filed: August 20, 2012
    Publication date: July 17, 2014
    Applicant: VON ARDENNE GMBH
    Inventors: Harald Gross, Udo Willkommen
  • Publication number: 20140193656
    Abstract: There are disclosed a method of manufacturing fine metal powder and fine metal powder manufactured by using the same. The method of manufacturing fine metal powder includes forming a pattern having a predetermined size and shape on a base substrate, forming a metal film on the pattern, and separating the metal film from the pattern to obtain individual metal particles having a predetermined size and shape. The fine metal powder manufactured by the method has a uniform shape and a uniform particle size distribution. The fine metal powder is in the form of flakes, having a large ratio of particle diameter to thickness.
    Type: Application
    Filed: April 10, 2013
    Publication date: July 10, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: SAMSUNG ELECTRO-MECHANICS CO., LTD.
  • Publication number: 20140178246
    Abstract: A process for making silver nanostructures, which includes the step of reacting at least one polyol and at least one silver compound that is capable of producing silver metal when reduced, in the presence of: (a) a source of chloride or bromide ions, and (b) at least one copolymer that comprises: (i) one or more first constitutional repeating units that each independently comprise at least one pendant saturated or unsaturated, five-, six-, or seven-membered, acylamino- or diacylamino-containing heterocylic ring moiety per constitutional repeating unit, and (ii) one or more second constitutional repeating units, each of which independently differs from the one or more first nonionic constitutional repeating units, and has a molecular weight of greater than or equal to about 500 grams per mole, is described herein.
    Type: Application
    Filed: September 27, 2013
    Publication date: June 26, 2014
    Applicant: Rhodia Operations
    Inventors: Ahmed Alsayed, Lawrence Hough, Chantal Badre