Patents by Inventor Yong Wu

Yong Wu 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: 6303543
    Abstract: A compound represented by the formula (I) or its salt and herbicidal and desiccant use thereof: wherein X, Y are independently hydrogen, halogen, cyano, nito, or (C1-6)haloalkyl; Z is oxygen or sulfur; and
    Type: Grant
    Filed: May 15, 2000
    Date of Patent: October 16, 2001
    Assignee: Ishihara Sangyo Kaisha, Ltd.
    Inventors: David A. Pulman, Bai-Ping Ying, Shao-Yong Wu, Sandeep Gupta, Masamitsu Tsukamoto, Takahiro Haga
  • Patent number: 6294503
    Abstract: Novel fused heterocycle compounds represented by the formula (I) are described. Q, R, W, —L—X—, Y, Z, and n are as defined in the disclosure. Also described are the processes for the manufacture of these compounds and agriculturally suitable compositions containing these as active ingredients which are useful as herbicides for general or selective pre-emergent or post-emergent control of undesired plant species.
    Type: Grant
    Filed: December 3, 1998
    Date of Patent: September 25, 2001
    Assignee: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Sandeep Gupta, Shao-Yong Wu, Masamitsu Tsukamoto, Bai-Ping Ying, David A. Pulman
  • Patent number: 6121201
    Abstract: A compound represented by the formula (I) or its salt and herbicidal and desiccant use thereof: ##STR1## wherein X, Y are independently hydrogen, halogen, cyano, nitro, or (C.sub.
    Type: Grant
    Filed: September 23, 1998
    Date of Patent: September 19, 2000
    Assignee: Ishihara Sangyo Kaisha, Ltd.
    Inventors: David A. Pulman, Bai-Ping Ying, Shao-Yong Wu, Sandeep Gupta, Masamitsu Tsukamoto, Takahiro Haga
  • Patent number: 5419172
    Abstract: A method and apparatus for hot-rolling a slab of steel in which a cast slab is heated in a tunnel furnace to a hot-rolling temperature, rolled to a lesser thickness in a tandem mill, reheated in the same tunnel furnace and then rerolled in the same tandem mill to a final thickness.
    Type: Grant
    Filed: July 26, 1993
    Date of Patent: May 30, 1995
    Inventor: Yong-Wu Kim
  • Patent number: 5107492
    Abstract: Method and device for managing access to the transmission medium of a multiservice distributed switching network adapted to switch traffic in synchronous circuit-switched mode and in synchronous or asynchronous packet-switched mode, the architecture of the network being based on a transmission medium time-shared between different stations characterized in that: (1) the transmission medium is synchronous and structured in frames in turn structured in time slots in turn structured in time cells, the latter being sized to contain a communication entity which can be either a circuit-switched cell or a segmented packet-switched cell, (2) an ideal time slot for access to the transmission medium in packet-switched mode is assigned to the respective stations communicating within the network, and (3) in each time cell and for all stations transmission medium access arbitration is applied to procure priority access to this medium for circuit-switched cells available at this time in any station.
    Type: Grant
    Filed: June 19, 1990
    Date of Patent: April 21, 1992
    Assignee: Alcatel Business Systems
    Inventors: Raphael Roux, Ji-Yong Wu
  • Patent number: 4935551
    Abstract: m-Diisopropylbenzene dihydroperoxide is produced in good yield in a continuous process by the oxidation of diisopropylbenzene, comprised of major amounts of the m-isomer and less than 6% of the o-isomer, under anhydrous, non-alkaline conditions with oxygen or air at about 85.degree. C.-95.degree. C.
    Type: Grant
    Filed: December 22, 1987
    Date of Patent: June 19, 1990
    Assignee: Indspec Chemical Corporation
    Inventor: Ching-Yong Wu
  • Patent number: 4849549
    Abstract: A process for the preparation of resorcinol from diisopropylbenzene includes the steps of oxidizing m-diisopropylbenzene under anhydrous, non-alkaline conditions with oxygen, extracting m-diisopropylbenzene dihydroperoxide and m-diisopropylbenzene hydroxyhydroperoxide with dilute sodium hydroxide, re-extracting with an organic solvent, converting m-diisopropylbenzene hydroxyhydroperoxide to m-diisopropylbenzene dihydroperoxide with hydrogen peroxide, drying the product, decomposing the m-diisopropylbenzene dihydroperoxide in the presence of a catalyst selected from the group consisting of boron trifluoride, ferric chloride and stannic chloride to coproduce resorcinol and actone, and purifying the resorcinol.
    Type: Grant
    Filed: December 22, 1987
    Date of Patent: July 18, 1989
    Assignee: Indspec Chemical Corporation
    Inventor: Ching-Yong Wu
  • Patent number: 4847437
    Abstract: An improvement in a process for the preparation of resorcinol which includes the steps of treating an extract of selected oxidation products of diisopropylbenzene with hydrogen peroxide to convert m-HHP to m-DHP, drying the treated extract and thereafter, decomposing the m-DHP in the presence of an effective amount, preferably within the range of about 10 to 50 ppm, of a catalyst selected from the group consisting of boron trifluoride, ferric chloride and stannic chloride.
    Type: Grant
    Filed: December 22, 1987
    Date of Patent: July 11, 1989
    Assignee: Indspec Chemical Corporation
    Inventor: Ching-Yong Wu
  • Patent number: 4847436
    Abstract: An improvement in the preparation of resorcinol includes the decomposition of m-diisopropylbenzene dihydroperoxide (m-DHP) to resorcinol and acetone in the presence of an effective amount of a catalyst selected from the group consisting of boron trifluoride, ferric chloride and stannic chloride. Minute quantities of the catalyst, preferably 10 to 50 ppm, are effective to increase the yields of resorcinol.
    Type: Grant
    Filed: December 22, 1987
    Date of Patent: July 11, 1989
    Assignee: Indspec Chemical Corporation
    Inventor: Ching-Yong Wu
  • Patent number: 4500561
    Abstract: The molten exterior surface portion of a hot dip galvanized steel strip is solidified after the strip is withdrawn from a bath of molten zinc by spraying finely divided particles of a liquid nucleating agent for initiating solidification. The particles are sprayed into an electrostatic field alongside the strip. The particles are initially directed along a path which avoids impingement against the strip. However, the smaller particles are attracted to the strip under the influence of the electrostatic field, to initiate solidification. The larger particles have a momentum along their path large enough to resist the influence of the electrostatic field, thereby permitting the larger particles to continue along a path which avoids impingement. This minimizes the formation of undesirably large spangles and an undesirable surface appearance on the strip.
    Type: Grant
    Filed: July 25, 1983
    Date of Patent: February 19, 1985
    Assignee: Inland Steel Company
    Inventors: Yong-Wu Kim, Phillip L. Coduti, Brian A. Sok, William A. Carter
  • Patent number: 4330598
    Abstract: The loss of zinc by vaporization when heating a zinc-aluminum coating to a temperature between about 427.degree. C. and 816.degree. C. (800.degree. F. and 1500.degree. F.) is significantly reduced by applying a zinc-aluminum coating containing about 30 to 75 weight percent zinc and the balance essentially aluminum to a mild carbon steel base which contains titanium in an amount sufficient to combine with all of the carbon in the steel and provide a small excess of uncombined titanium in the steel base, thereby providing a zinc-aluminum coated steel article which has improved corrosion and oxidation resistance when heated at temperatures between about 427.degree. C. and 816.degree. C. (800.degree. F. and 1500.degree. F.).
    Type: Grant
    Filed: June 9, 1980
    Date of Patent: May 18, 1982
    Assignee: Inland Steel Company
    Inventors: Harvie H. Lee, Yong-Wu Kim
  • Patent number: 4308409
    Abstract: Propylene is converted to propylene glycol at high selectivity in a process in which ethylbenzene hydroperoxide and water are reacted with propylene in the presence of osmium tetroxide catalyst and a base at a pH of about 14.
    Type: Grant
    Filed: July 28, 1980
    Date of Patent: December 29, 1981
    Assignee: Gulf Research & Development Company
    Inventors: Ching-Yong Wu, Thaddeus P. Kobylinski, John E. Bozik
  • Patent number: 4297518
    Abstract: Cumene hydroperoxide in a solvent comprising phenol and acetone is decomposed to phenol and acetone using a soluble rhenium compound.
    Type: Grant
    Filed: November 18, 1977
    Date of Patent: October 27, 1981
    Assignee: Gulf Research & Development Company
    Inventors: Ching-Yong Wu, Wayne R. Pretzer, Thaddeus P. Kobylinski
  • Patent number: 4282384
    Abstract: The hydroperoxides of diisopropylbenzene are prepared by the oxidation of diisopropylbenzene with molecular oxygen in the presence of a minute amount of solid barium oxide.
    Type: Grant
    Filed: May 5, 1980
    Date of Patent: August 4, 1981
    Assignee: Gulf Research & Development Company
    Inventors: Ching-Yong Wu, Harold E. Swift, John E. Bozik
  • Patent number: 4280924
    Abstract: A catalyst residue containing osmium catalyst having a substantial component with a valency state less than +5 is regenerated to a valency state greater than +5 by contacting the residue with an organic hydroperoxide at a pH greater than 7 and the regenerated catalyst residue is recycled to a hydroxylation reactor containing ethylene or propylene, a polar organic solvent, an aqueous solution of cesium, rubidium, potassium or tetraalkylammonium hydroxide and an organic hydroperoxide.
    Type: Grant
    Filed: December 28, 1979
    Date of Patent: July 28, 1981
    Assignee: Gulf Research & Development Company
    Inventors: Ching-Yong Wu, Thaddeus P. Kobylinski
  • Patent number: 4255596
    Abstract: Ethylene is converted to ethylene glycol at high selectivity in a process in which ethylbenzene hydroperoxide and water are reacted with ethylene in the presence of osmium tetroxide catalyst and a base at a pH of about 14.
    Type: Grant
    Filed: February 25, 1980
    Date of Patent: March 10, 1981
    Assignee: Gulf Research & Development Company
    Inventors: Ching-Yong Wu, Thaddeus P. Kobylinski, John E. Bozik
  • Patent number: 4255599
    Abstract: Ethylbenzene is converted to styrene at high selectivity in a multistage process in which ethylbenzene is oxidized to ethylbenzene hydroperoxide which is reacted with ethylene or propylene to produce a mixture of 1-phenylethanol and acetophenone which are converted to styrene.
    Type: Grant
    Filed: March 12, 1980
    Date of Patent: March 10, 1981
    Assignee: Gulf Research & Development Company
    Inventors: Ching-Yong Wu, Thaddeus P. Kobylinski, John E. Bozik
  • Patent number: 4229601
    Abstract: Ethylene or propylene is converted to the corresponding glycol at high selectivity in a process in which t.butyl hydroperoxide is reacted with the olefin in a two-phase liquid, organic-aqueous reaction system in the presence of osmium tetroxide and cesium, rubidium or potassium hydroxide.
    Type: Grant
    Filed: December 26, 1978
    Date of Patent: October 21, 1980
    Assignee: Gulf Research & Development Company
    Inventors: Ching-Yong Wu, Thaddeus P. Kobylinski
  • Patent number: 4217291
    Abstract: Osmium (III) or (IV) in an anionic complex with oxygen and having an alkali metal, ammonium or tetra(lower)alkylammonium cation is oxidized to a valency state higher than 5 by reaction with an organic hydroperoxide, such as ethylbenzene hydroperoxide, at a temperature less than 30.degree. C.
    Type: Grant
    Filed: December 26, 1978
    Date of Patent: August 12, 1980
    Assignee: Gulf Research & Development Company
    Inventors: Ching-Yong Wu, Thaddeus P. Kobylinski
  • Patent number: 4217287
    Abstract: A process for epoxidizing an alpha-olefin by adding an alpha-olefin and an oxygen transfer catalyst to a hydroperoxide stabilized with barium oxide.
    Type: Grant
    Filed: August 11, 1978
    Date of Patent: August 12, 1980
    Assignee: Gulf Research & Development Company
    Inventors: Ching-Yong Wu, Harold E. Swift, John E. Bozik