Patents by Inventor Fumiaki Morishita

Fumiaki Morishita 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 producing high purity trialkanolamine
    Patent number: 7164044
    Abstract: A process for producing a high purity trialkanolamine excelling in hue and having an APHA of not more than 40, characterizing by including producing a mixed alkanolamine by the reaction of an alkylene oxide with ammonia; removing low-boiling substances from the mixed alkanolamine; removing high-boiling substances by subjecting the product deprived of the low-boiling substance to vacuum distillation, and redistilling the distillate obtained by the vacuum distillation.
    Type: Grant
    Filed: February 2, 2004
    Date of Patent: January 16, 2007
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Fumiaki Morishita, Atsushi Tojo, Takahiro Takinami, Yutaka Sugiyama
  • Process for producing high purity trialkanolamine
    Publication number: 20040158102
    Abstract: A process for producing a high purity trialkanolamine excelling in hue and having an APHA of not more than 40, characterizing by including producing a mixed alkanolamine by the reaction of an alkylene oxide with ammonia; removing low-boiling substances from the mixed alkanolamine; removing high-boiling substances by subjecting the product deprived of the low-boiling substance to vacuum distillation, and redistilling the distillate obtained by the vacuum distillation.
    Type: Application
    Filed: February 2, 2004
    Publication date: August 12, 2004
    Inventors: Fumiaki Morishita, Atsushi Tojo, Takahiro Takinami, Yutaka Sugiyama
  • Method for production of alkanolamine and apparatus therefor
    Patent number: 6566556
    Abstract: A method for producing an alkanolamine from liquid ammonia in the presence of a solid catalyst efficiently with both the cost of equipment and the expense of utility repressed is provided. After not less than 60% of the ammonia has been recovered as liquid ammonia from the product solution, the remaining ammonia is recovered as aqueous ammonia solution through the steps of stripping and absorption in water. Separately, a dialkanolamine can be selectively and efficiently produced by circulating part of the product solution to the reactor.
    Type: Grant
    Filed: November 15, 2001
    Date of Patent: May 20, 2003
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Hideaki Tsuneki, Koji Takeda, Fumiaki Morishita
  • Method of producing alkanolamines and apparatus for producing same
    Patent number: 6559342
    Abstract: In producing alkanolamines by use of a microporous material as a catalyst, the difficulty in industrially performing the production because of the short lifetime of the catalyst is resolved. A process of regenerating the catalyst by removing an organic substance deposited on the catalyst by means of decomposing and/or extracting the substance is introduced, and thereby steady production is carried out substantially over the long term by switching the reaction and the regenerating processes.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: May 6, 2003
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Hideaki Tsuneki, Masaru Kirishiki, Yoshitaka Arita, Yukihide Hashimoto, Tomoharu Oku, Hisakazu Shindou, Yoshiaki Urano, Fumiaki Morishita
  • Method for production of alkanolamine and apparatus therefor
    Publication number: 20020123653
    Abstract: A method for producing an alkanolamine from liquid ammonia in the presence of a solid catalyst efficiently with both the cost of equipment and the expense of utility repressed is provided. After not less than 60% of the ammonia has been recovered as liquid ammonia from the product solution, the remaining ammonia is recovered as aqueous ammonia solution through the steps of stripping and absorption in water. Separately, a dialkanolamine can be selectively and efficiently produced by circulating part of the product solution to the reactor.
    Type: Application
    Filed: November 15, 2001
    Publication date: September 5, 2002
    Inventors: Hideaki Tsuneki, Koji Takeda, Fumiaki Morishita
  • Process for production of (poly) alkylene glycol monoalkyl ether
    Patent number: 5741948
    Abstract: There is provided a process for producing a (poly)alkylene glycol monoalkyl ether from an olefin and a (poly)alkylene glycol at a high conversion at a high selectivity. This process comprises reacting an olefin with a (poly)alkylene glycol in the presence of a crystalline metallosilicate as a catalyst.
    Type: Grant
    Filed: June 6, 1996
    Date of Patent: April 21, 1998
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Masaru Kirishiki, Yukio Kadono, Isamu Maeda, Yasuhiko Satoh, Fumiaki Morishita, Yoshiyuki Onda, Hideaki Tsuneki