Patents by Inventor Sobi ASAKO

Sobi ASAKO 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).

  • Publication number: 20210388004
    Abstract: A technique that can synthesize an aromatic sodium compound easily, in a short time, and efficiently through a small number of steps is constructed.
    Type: Application
    Filed: August 29, 2019
    Publication date: December 16, 2021
    Inventors: Yoshiaki MURAKAMI, Gen TSUBOUCHI, Yumiko KATAYAMA, Kazuhiko TAKAI, Sobi ASAKO
  • Patent number: 11066367
    Abstract: Provided are an electron donor that is easy to handle and can be used to carry out a coupling reaction economically and efficiently through simple operations under mild conditions in a short period of time, and a method for synthesizing 4,4?-bipyridine using the electron donor. The electron donor includes a mixture of a dispersion product obtained by dispersing sodium in a dispersion solvent and 1,3-dimethyl-2-imidazolidinone, and this electron donor is used in the method for synthesizing 4,4?-bipyridine.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: July 20, 2021
    Assignee: Kobelco Eco-Solutions Co., Ltd.
    Inventors: Yoshiaki Murakami, Miyuki Fukushima, Kazuhiko Takai, Sobi Asako
  • Publication number: 20210070782
    Abstract: An object is to establish a technology with which a boronate ester compound can be easily and efficiently synthesized at a low cost with a small number of steps without the need for a complex chemical method and reagents that need to be carefully handled. A further object is to establish a sodium salt of a boronate ester compound that is a novel compound and a technology for synthesizing the sodium salt of a boronate ester compound. Provided are a sodium salt of a boronate ester compound and a method for synthesizing a boronate ester compound or a sodium salt of a boronate ester compound that includes reacting, in a reaction solvent, an organic chloride with a dispersion product obtained by dispersing sodium in a dispersion solvent to obtain an organic sodium compound, and reacting the obtained organic sodium compound with a borate ester compound to obtain a boronate ester compound or a sodium salt of a boronate ester compound.
    Type: Application
    Filed: January 17, 2019
    Publication date: March 11, 2021
    Inventors: Yoshiaki MURAKAMI, Miyuki FUKUSHIMA, Kazuhiko TAKAI, Sobi ASAKO
  • Publication number: 20210070777
    Abstract: An object is to establish a technology with which an organic magnesium compound can be easily and efficiently synthesized at a low cost with few steps that do not involve a complex chemical method. A method for synthesizing an organic magnesium compound includes, in a reaction solvent, reacting an organic halide represented by General Formula I (Ra—Xa) with a dispersion product obtained by dispersing sodium in a dispersion solvent to obtain an organic sodium compound represented by General Formula II (Ra—Na), and reacting the obtained organic sodium compound with a magnesium halide represented by General Formula III (Mg—(Xb)2) to obtain an organic magnesium compound represented by General Formula IV (Ra—Mg—Xb).
    Type: Application
    Filed: December 27, 2018
    Publication date: March 11, 2021
    Inventors: Yoshiaki MURAKAMI, Miyuki FUKUSHIMA, Kazuhiko TAKAI, Sobi ASAKO
  • Patent number: 10836723
    Abstract: There is a demand for the development of a technique according to which sodium 2,2,6,6-tetramethylpiperidides (Na-TMPs) can be economically and efficiently synthesized through simple operations including a small number of steps under mild conditions in a short period of time. Also, there is a demand for the development of a technique according to which high-quality Na-TMPs that do not contain lithium or lithium compounds such as Li-TMP can be synthesized. The method for synthesizing sodium 2,2,6,6-tetramethylpiperidides includes a step of obtaining sodium 2,2,6,6-tetramethylpiperidides by reacting, in a reaction solvent, 2,2,6,6-tetramethylpiperidines with a dispersion product obtained by dispersing sodium in a dispersion solvent or an organosodium compound having an aromatic ring obtained through a reaction with a dispersion product obtained by dispersing sodium in a dispersion solvent.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: November 17, 2020
    Assignee: KOBELCO ECO-SOLUTIONS CO., LTD.
    Inventors: Yoshiaki Murakami, Miyuki Fukushima, Kazuhiko Takai, Sobi Asako
  • Publication number: 20200270212
    Abstract: Provided are an electron donor that is easy to handle and can be used to carry out a coupling reaction economically and efficiently through simple operations under mild conditions in a short period of time, and a method for synthesizing 4,4?-bipyridine using the electron donor. The electron donor includes a mixture of a dispersion product obtained by dispersing sodium in a dispersion solvent and 1,3-dimethyl-2-imidazolidinone, and this electron donor is used in the method for synthesizing 4,4?-bipyridine.
    Type: Application
    Filed: September 27, 2018
    Publication date: August 27, 2020
    Inventors: Yoshiaki MURAKAMI, Miyuki FUKUSHIMA, Kazuhiko TAKAI, Sobi ASAKO
  • Patent number: 10544098
    Abstract: A target bipyridine compound is synthesized with high purity and a high yield in a simple and safe manner in a short period of time. A method for synthesizing a di-tert-butyl-2,2?-bipyridine compound is provided, and the method includes a step of reacting, in a reaction solvent, a tert-butylpyridine compound with a dispersion product obtained by dispersing an alkali metal in a dispersion solvent. A method for synthesizing a bipyridine compound having no substituents is also provided, and the method includes a step of reacting, in a reaction solvent, pyridine with a dispersion product obtained by dispersing an alkali metal in a dispersion solvent.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: January 28, 2020
    Assignee: Kobelco Eco-Solutions Co., Ltd.
    Inventors: Yoshiaki Murakami, Yukihiro Goto, Miyuki Fukushima, Kazuhiko Takai, Sobi Asako
  • Publication number: 20190359571
    Abstract: There is a demand for the development of a technique according to which sodium 2,2,6,6-tetramethylpiperidides (Na-TMPs) can be economically and efficiently synthesized through simple operations including a small number of steps under mild conditions in a short period of time. Also, there is a demand for the development of a technique according to which high-quality Na-TMPs that do not contain lithium or lithium compounds such as Li-TMP can be synthesized. The method for synthesizing sodium 2,2,6,6-tetramethylpiperidides includes a step of obtaining sodium 2,2,6,6-tetramethylpiperidides by reacting, in a reaction solvent, 2,2,6,6-tetramethylpiperidines with a dispersion product obtained by dispersing sodium in a dispersion solvent or an organosodium compound having an aromatic ring obtained through a reaction with a dispersion product obtained by dispersing sodium in a dispersion solvent.
    Type: Application
    Filed: January 24, 2018
    Publication date: November 28, 2019
    Inventors: Yoshiaki MURAKAMI, Miyuki FUKUSHIMA, Kazuhiko TAKAI, Sobi ASAKO
  • Publication number: 20180282278
    Abstract: A target bipyridine compound is synthesized with high purity and a high yield in a simple and safe manner in a short period of time. A method for synthesizing a di-tert-butyl-2,2?-bipyridine compound is provided, and the method includes a step of reacting, in a reaction solvent, a tert-butylpyridine compound with a dispersion product obtained by dispersing an alkali metal in a dispersion solvent. A method for synthesizing a bipyridine compound having no substituents is also provided, and the method includes a step of reacting, in a reaction solvent, pyridine with a dispersion product obtained by dispersing an alkali metal in a dispersion solvent.
    Type: Application
    Filed: October 7, 2016
    Publication date: October 4, 2018
    Inventors: Yoshiaki MURAKAMI, Yukihiro GOTO, Miyuki FUKUSHIMA, Kazuhiko TAKAI, Sobi ASAKO