Patents Represented by Attorney Donald E. Townsend
  • Patent number: 5407183
    Abstract: There is provided a drywall installation tool which is generally rectangular and has a first and second section. In one embodiment, the first section being provided with at least two apertures through which nails or screws can be placed to secure the tool to a drywall sheet that is already in place. A spacer is provided on the surface of the first section of the tool to properly position the tool on the installed drywall surface. When the tool is positioned on a installed drywall surface, the next sheet of drywall is then placed on the second section of the tool and pushed upwardly to properly position the second sheet of drywall on studs or metal supports and the drywall tool holds the sheet of drywall in place while it is being secured with either nails or screws to the underlying support structure.
    Type: Grant
    Filed: March 1, 1994
    Date of Patent: April 18, 1995
    Inventor: James C. Singeltary
  • Patent number: 5326827
    Abstract: A curable resin composition comprising (a) an acrylic polymer having a plurality of alicyclic epoxide functions, and (b) an amount effective to initiate the curing reaction of the acrylic polymer (a) upon heating of a heat-latent cation polymerization initiator. The composition finds its uses in coating compositions, sealants, potting and casting compositions.
    Type: Grant
    Filed: October 21, 1993
    Date of Patent: July 5, 1994
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Kei Aoki, Shinji Nakano, Nobuaki Tomita
  • Patent number: 5266652
    Abstract: A resinous composition for powder coating, comprising (A) an acrylic resin and (B) a hardener, the acrylic resin being composed of (a) t-butyl methacrylate and/or t-butyl acrylate, (b) an ethylenically unsaturated monomer having a reactive functional group and (c) other ethylenically unsaturated monomer(s) than the said (a) and (b) which is (are) non-reactive with the functional group of (b), the reactive functional group content being 0.0010-0.0046 mol/g of resin, the glass transition temperature being 30-110.degree. C. and the number average molecular weight being 1,000-20,000, and the hardener having in its molecule 2 or more functional groups which are reactive with the reactive functional group possessed by the acrylic resin.The powder coating based on the present resinous composition is useful for the coating of construction material, auto-mobile and the like and is excellent in low temperature curing properties, storage stability and can result an excellent film even when used a stored powder.
    Type: Grant
    Filed: June 5, 1992
    Date of Patent: November 30, 1993
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Yuji Toyoda, Akimitsu Uenaka, Hideki Ichimura, Tasaburo Ueno, Koichi Tsutsui
  • Patent number: 5184277
    Abstract: A ceramic capacitor having excellent electric characteristics includes internal electrodes comprising a base metal such as Ni, and a method for fabricating the capacitor includes the step of firing under a non-oxidation atmosphere. A dielectric layer of the ceramic capacitor comprises a basic and additional components. The basic components comprises a material represented by the following formula:(1-.alpha.) {(Ba.sub.k-x-z M.sub.x L.sub.z)O.sub.k (Ti.sub.1-y R.sub.y)O.sub.2-y/2 }+.alpha.BaZrO.sub.3where, M is Mg and/or Zn, L is Ca and/or Sr, R is a rare earth element, and .alpha., k, x, z and y are nuermals fulfilling the conditions of 0.005.ltoreq..alpha..ltoreq.0.04, 1.00.ltoreq.k.ltoreq.k.ltoreq.1.05, 0<x<0.10, 0<z.ltoreq.0.05, 0.01.ltoreq.x+z.ltoreq.0.10, and 0<y.ltoreq.0.04. The additional component comprises Li.sub.2 O (or B.sub.2 O.sub.3), SiO.sub.2 and MO (MO is at least one metal oxide selected from the group consisting of BaO, SrO, CaO, MgO and ZnO).
    Type: Grant
    Filed: October 17, 1991
    Date of Patent: February 2, 1993
    Assignee: Taiyo Yuden Kabusikigaisha
    Inventors: Hisamitsu Shizuno, Hirosi Kisi, Hirosi Saito, Makoto Fujii
  • Patent number: 5181157
    Abstract: A ceramic capacitor having excellent electric characteristics which includes internal electrodes essentially comprising a base metal such as Ni, and a method for fabricating the capacitor includes the step of firing under a non-oxidation atmosphere. A dielectric layer of the ceramic capacitor comprises basic and additional components. The basic component comprises a material represented by the following formula:(Ba.sub.k-(x+y) M.sub.x L.sub.y)O.sub.k (Ti.sub.1-z R.sub.z)O.sub.2-l z/2where, M is Mg and/or Zn, L is Ca and/or Sr, R is a rare earth element, and k, x, z and y are numerals fulfilling the conditions of 1.00.ltoreq.k.ltoreq.1.05, 0<x<0.10, 0<y.ltoreq.0.05, 0.01.ltoreq.x+y<0.10, and 0.002<z.ltoreq.0.06. The additional component consists comprises Li.sub.2 O )or B.sub.2 O.sub.3), SiO.sub.2 and MO (MO is at least one metal oxide selected from the group consisting of BaO, SrO, CaO, MgO and ZnO).
    Type: Grant
    Filed: October 17, 1991
    Date of Patent: January 19, 1993
    Assignee: Taiyo Yuden Kabusikigaisha
    Inventors: Hirokazu Chazono, Mutsumi Honda, Hirosi Kisi, Hirosi Saito, Hisamitsu Shizuno
  • Patent number: 5104478
    Abstract: A method for making single crystals, comprising osmotically removing the solvent from a solution containing the material to be grown into a crystal.
    Type: Grant
    Filed: October 17, 1989
    Date of Patent: April 14, 1992
    Assignee: The United States of America as represented by the Secretary of Commerce
    Inventors: Subhas K. Sikdar, Dena L. Lund