Patents by Inventor Tuyoshi Hashimoto

Tuyoshi Hashimoto has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5958574
    Abstract: A polyolefin resin composition comprising (a) 100 parts by weight of a polyolefin resin and (b) 0.05 to 1 part by weight of beads of a crosslinked polymer comprising (1) 5 to 99% by weight of a radically polymerizable monomer unit represented by the general formula (A): ##STR1## wherein R.sub.1 is hydrogen or a hydrocarbon group having 1 to 5 carbon atoms and R.sub.2 is a hydrocarbon group having 5 to 30 carbon atoms, (2) 0 to 94% by weight of a radically polymerizable monomer unit other than the monomer unit of the general formula (A), and (3) 1 to 20% by weight of a crosslinkable monomer unit, said crosslinked polymer beads having a critical surface tension of 40 dyne/cm or less.
    Type: Grant
    Filed: February 20, 1997
    Date of Patent: September 28, 1999
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hiroyuki Tanimura, Takeshi Ebara, Kazuhiro Yamazaki, Taiji Yamada, Tuyoshi Hashimoto
  • Patent number: 5876867
    Abstract: An electrocatalyst comprising an alloy of platinum with a base metal selected from the group consisting of gallium, vanadium, chromium, manganese, iron, cobalt, nickel and copper, having a structure of vacant lattice site type lattice defects; the alloy being supported on a conductive carbon powder. The electrocatalyst is useful as a platinum-supported catalyst for an electrode, and has a superior electrochemical oxygen reduction activity and has platinum alloy particles having less base metal component.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: March 2, 1999
    Assignee: N.E. Chemcat Corporation
    Inventors: Takashi Itoh, Katsuaki Katoh, Tuyoshi Hashimoto
  • Patent number: 5639537
    Abstract: A polypropylene resin composition for oriented film excellent in transparency, slip property and blocking resistance which comprises the following components (a) and (b), and an oriented film obtained by orienting the composition at least in uniaxial direction:(a) 100 parts by weight of a crystalline polypropylene resin, and(b) 0.05 or more but less than 1 part by weight of crosslinked polymer beads which have a weight average particle diameter of 0.5-5 .mu.m, comprise 60-96% by weight of styrenic monomer units, 2-38% by weight of radical-polymerizable monomer units, the refractive index of the polymer of the radical-polymerizable monomer being 1.50 or less, and 2-50% by weight of crosslinkable monomer units, and give an average protuberance height of 60-600 nm on the surface of oriented film obtained by kneading the crosslinked polymer beads into the polypropylene resin followed by working up into oriented film.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: June 17, 1997
    Assignee: Sumitomo Chemical Company Limited
    Inventors: Takeshi Ebara, Hiroyuki Tanimura, Hajime Sadatoshi, Kazuhiro Yamazaki, Taiji Yamada, Tuyoshi Hashimoto
  • Patent number: 5365949
    Abstract: This invention relates to a method of detecting deviation in position and misshape of transported objects which have a predetermined shape and are successively transported at predetermined intervals with the transported objects being maintained in a predetermined direction, comprising the steps of: generating synchronizing signals corresponding to the transportation intervals on a predetermined cycle; detecting passage of end portions of the transported objects at predetermined positions; calculating a time interval between the generation of the synchronizing signals and the passage of the end portions; calculating a mean value and a standard deviation for a prescribed number of the transported objects from time series information; judging a transported object as an object of which position is deviated or shape is deformed when the difference between measured time interval and the mean time interval is larger than a criterion which is calculated based on the standard deviation; replacing the oldest informatio
    Type: Grant
    Filed: July 15, 1992
    Date of Patent: November 22, 1994
    Assignee: Japan Tobacco Inc.
    Inventors: Toshiaki Nishizaka, Hirokazu Takamori, Tuyoshi Hashimoto
  • Patent number: 4999592
    Abstract: A converter for use with planar antennas has a probe projected into an input part of waveguide structure as extended along a plane including a circuit board in a body of the converter, an opening of which input part being disposed in parallel to the plane, whereby the converter input part is allowed to have a thickness limited within the thickness of the converter body to remarkably reduce the entire thickness for effectively realizing a minimization in the thickness of the converter.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: March 12, 1991
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Minoru Kanda, Mikio Komatsu, Yasuhiro Fujii, Toshio Abiko, Kyoji Masamoto, Yasumasa Ogawa, Tuyoshi Hashimoto