Patents Represented by Attorney, Agent or Law Firm Nields, Lemack & Dingman
  • Patent number: 5728969
    Abstract: A granular explosive is obtained by mixing porous prill ammonium nitrate having an average particle size of 0.5 to 3.0 mm with a liquid aromatic dinitro compound and optionally a metal powder. Explosives having high sensitivity and power can be obtained by a simple and easy process.
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: March 17, 1998
    Assignees: Mitsubishi Chemical Corporation, Nippon Kayaku Kabushiki Kaisha
    Inventors: Koichi Otani, Seiichi Yoshida, Yoshiyuki Ikeda, Hiroyuki Taniguchi
  • Patent number: 5719403
    Abstract: A method and apparatus for the direct current acceleration and scanning of ions of all species to energies as high as a few million electron volts (MeV). These method and apparatus have particular relevance for the controlled doping of semiconductor materials and flat panel display units. The apparatus employs high velocity neutral beams of dopant atoms to deliver atoms to the high voltage terminal where they are converted to positive ions having a low electric rigidity. This low electric rigidity makes possible a compact charge state analyzer prior to final positive ion acceleration together with compact electrostatic scanning of the ions for individual wafer implantation at MeV energies. This technology makes possible a compact implanter system.
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: February 17, 1998
    Inventor: Kenneth H. Purser
  • Patent number: 5716895
    Abstract: A simple and excellent process for the regeneration of heteropolyacid catalysts can be provided. A heteropolyacid catalyst, e.g. a phosphomolybdic acid catalyst, whose activity has been lowered can be regenerated by dissolving and/or suspending it in an aqueous medium and then treating with an inorganic ion-exchange material, e.g. crystalline antimonic acid.
    Type: Grant
    Filed: June 2, 1997
    Date of Patent: February 10, 1998
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Hideki Sugi, Kazuo Shiraishi, Atsushi Sudo
  • Patent number: 5709542
    Abstract: The invention relates to a process and a device for burning oxidizable components in a vehicle gas to be purified, comprising a gas inlet (36), a burner (19) with an attached flame pipe (22) opening into a main combustion chamber (24) comprising a bottom and side walls, an annular chamber leading from the side of the main combustion chamber bottom (21), a heat exchanger (32) around which flows the purified gas and through which flows the gas to be purified, and a gas outlet (38). To obtain good combustion with a compact construction, especially to make the best possible use of the geometric dwell time in the main combustion chamber, it is proposed that the main combustion chamber be constructed in such a way and/or has such guide components (40,42,44) that the gas flowing from the bottom towards the annular chamber is distributed completely or largely uniformly over the cross-section of the main combustion chamber.
    Type: Grant
    Filed: October 30, 1995
    Date of Patent: January 20, 1998
    Assignee: Grace GmbH
    Inventors: Gert Rentzel, Joachim Saggel
  • Patent number: 5706131
    Abstract: A polarizing element or polarizing plate comprising a layer having photoactive molecules and a layer containing dichroic molecules formed in contact with said layer, which can easily be produced without a stretching procedure so as to have a complicated pattern, a curved surface or a large area; and a process for producing said polarizing element or polarizing plate which is characterized by irradiating a layer having photoactive molecules on a substrate with linear polarized light, and then forming a dichroic molecular layer on the irradiated layer.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: January 6, 1998
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Kunihiro Ichimura, Norio Ishizuki, Junji Toda
  • Patent number: 5702820
    Abstract: There is disclosed a photo-imaging resist ink containing (A) an unsaturated group-containing polycarboxylic acid resin which is a reaction product of (c) succinic anhydride with an additive reaction product of (a) an epoxy resin with (b) an unsaturated group-containing monocarboxylic acid, wherein (a) the epoxy resin is represented by the following formula (1): ##STR1## wherein M stands for ##STR2## n is at least 1 on the average; and m is 1 to n on the average. The resist ink is excellent in developability and photosensitivity, while the cured product thereof is excellent in flex resistance and folding resistance, and well satisfactory in adhesion, pencil hardness, solvent resistance, acid resistance, heat resistance, etc.
    Type: Grant
    Filed: June 10, 1996
    Date of Patent: December 30, 1997
    Assignees: Nippon Kayaku Kabushiki Kaisha, Nippon Polytech Corp.
    Inventors: Minoru Yokoshima, Tetsuo Ohkubo, Kazunori Sasahara, Yoneji Sato, Yoko Baba
  • Patent number: 5691757
    Abstract: This invention relates to a laser marking method which comprises heating a base article having on its surface a thin film of a laser marking composition containing a color former and a color developer having a melting point of 200.degree. C. or above, and then applying laser light to the thin film. The method of this invention is capable of no-break marking with vivid color development by application of laser light, without causing discoloration of the ground even under a condition of 120.degree. C. or above.
    Type: Grant
    Filed: December 12, 1994
    Date of Patent: November 25, 1997
    Assignees: Nippon Kayaku Kabushiki Kaisha, Kansai Paint Kabushiki Kaisha
    Inventors: Shoiti Hayashihara, Masaki Shinmoto
  • Patent number: 5688981
    Abstract: Silver chelating agent and surfactant that exhibits photosensitivity and antimicrobial activity. The silver can be chelated with ethylenediaminetriacetic acid (ED3A) or salts thereof, or preferably with N-acyl ED3A or salts thereof. Antimicrobial activity is exhibited even at very low silver levels.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: November 18, 1997
    Assignee: Hampshire Chemical Corp.
    Inventor: Arthur M. Nonomura
  • Patent number: 5689112
    Abstract: Surface contamination of silicon wafers is detected by a combined beam-deflecting magnet and magnetic spectrometer system. Heavy ions are directed onto the surface of a silicon wafer through the beam-deflecting magnet, and ions back-scattered from contaminants in the surface of the wafer pass through the magnetic spectrometer onto a focal-plane detector. One or more Einzel lenses prevent ions back-scattered from the silicon in the wafer from reaching the detector.
    Type: Grant
    Filed: April 12, 1996
    Date of Patent: November 18, 1997
    Inventors: Harald A. Enge, William A. Lanford
  • Patent number: 5686391
    Abstract: An adjuvant for Fluazifop-butyl, and preferably Fluazifop-P-butyl, having increased activity, lower irritancy and lower toxicity than conventional adjuvants. The adjuvant is C.sub.8 to C.sub.22 sarcosinate or sarcosinate salt, such as sodium cocoyl sarcosinate, sodium lauroyl sarcosinate, or combinations thereof, which is combined with Fluazifop-P-butyl and provides more effective activity.
    Type: Grant
    Filed: July 19, 1995
    Date of Patent: November 11, 1997
    Assignee: Hampshire Chemical Corp.
    Inventor: Joseph J. Crudden
  • Patent number: 5684579
    Abstract: The automatic tilt angle compensator of the present invention includes a liquid sealing container with a transparent liquid sealed therein to form a free liquid surface, a light projecting system for projecting light beam to the free liquid surface at a given angle so that it is reflected by the free liquid surface, an optical axis dividing means for dividing an optical axis of the light projecting system, a first light entry means for allowing the light beam from the light projecting system to pass into the sealing container, a second light entry means for allowing the light beams divided by the dividing means into the sealing container, a first light irradiating means for irradiating the light beam reflected by the free liquid surface from the sealing container, and a second light irradiating means arranged face-to-face to the first light irradiating means, whereby a light beam entering the liquid sealing container from the first light entry means is irradiated by the first light irradiating means, and when
    Type: Grant
    Filed: July 18, 1995
    Date of Patent: November 4, 1997
    Assignee: Kabushiki Kaisha Topcon
    Inventors: Fumio Ohtomo, Jun-ichi Kodaira
  • Patent number: D388431
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: December 30, 1997
    Assignee: Kokusai Electric Co., Ltd.
    Inventors: Tetsufumi Takayasu, Tatsuo Kuwayama, Takao Kumakoshi, Hiroshi Fujiwara