Patents by Inventor Tomio Ohno

Tomio Ohno 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).

  • Process for the production of polyarylene sulfide resins
    Patent number: 7317072
    Abstract: The present invention is a process for the production of polyarylene sulfide based resin, wherein in washing a polyarylene sulfide based resin with a mixed solvent of an aprotic organic solvent and water in a softened or molten state, the polyarylene sulfide based resin partially dissolved in the washing liquid is recovered, to be specific, the polyarylene sulfide based resin dissolved in the washing liquid is precipitated, separated and recovered by cooling the washing liquid after washing and/or adding water to the washing liquid, and it is reused. According to the present invention, capable of being provided is a process for the production of polyarylene sulfide based resin in which the polyarylene sulfide based resin formed by polymerization is scarcely lost in washing the above resin with a solvent.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: January 8, 2008
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Minoru Senga, Koichi Suga, Tomio Ohno
  • Process for the production of polyarylene sulfide resins
    Publication number: 20060128819
    Abstract: The present invention is a process for the production of polyarylene sulfide based resin, wherein in washing a polyarylene sulfide based resin with a mixed solvent of an aprotic organic solvent and water in a softened or molten state, the polyarylene sulfide based resin partially dissolved in the washing liquid is recovered, to be specific, the polyarylene sulfide based resin dissolved in the washing liquid is precipitated, separated and recovered by cooling the washing liquid after washing and/or adding water to the washing liquid, and it is reused. According to the present invention, capable of being provided is a process for the production of polyarylene sulfide based resin in which the polyarylene sulfide based resin formed by polymerization is scarcely lost in washing the above resin with a solvent.
    Type: Application
    Filed: October 2, 2003
    Publication date: June 15, 2006
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Minoru Senga, Koichi Suga, Tomio Ohno
  • Collecting facility of high melting point component in gas and collecting facility of dihalogenated aromatic compound in gas
    Patent number: 6955714
    Abstract: A collecting facility for collecting a component of a high melting point in a gas that includes a collecting tower through which a gas flows, a treating liquid projecting apparatus projecting treating liquid having temperature not higher than the melting point of a high melting point component in the gas in the collecting tower, and an extracting device for extracting from the inside of the collecting tower a slurry composed of the treating liquid and the high melting point component solidified by contact with the treating liquid.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: October 18, 2005
    Assignees: Tsukishima Kikai Co., Ltd., Idemitsu Kosan Co., Ltd.
    Inventors: Kenji Oouchi, Kiwamu Ishii, Jyunji Wakayama, Tomio Ohno
  • Collecting facility of high melting point component in gas and collecting facility of dihalogenated aromatic compound in gas
    Publication number: 20040097700
    Abstract: A facility of collecting a component of high melting point in a gas, excellent in treating efficiency and having a relatively simple structure is provided.
    Type: Application
    Filed: August 8, 2003
    Publication date: May 20, 2004
    Applicants: Tsukishima Kikai Co., Ltd., Idemitsu Petrochemical Co., Ltd.
    Inventors: Kenji Oouchi, Kiwamu Ishii, Jyunji Wakayama, Tomio Ohno