Patents by Inventor Ryuichi Kanai

Ryuichi Kanai 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: 11065607
    Abstract: A vinylpyridine resin for a catalyst support; a method for producing thereof; and a catalyst for carbonylation of methanol are disclosed. The vinylpyridine resin has: content of nitrogen derived from a pyridine group of 3.00% by mass or more and 8.00% by mass or less; degree of crosslinking of 35% by mole or more and 70% by mole or less; molar ratio C/N of carbon atoms to nitrogen atoms of 12.00 or more and 36.00 or less; total pore volume of 0.20 cc/g or more and 0.45 cc/g or less; specific surface area of 70.0 m2/g or more and 280 m2/g or less; average pore diameter of 5.0 nm or more and 25.0 nm or less; and proportion of a volume of pores having a pore diameter of 10 nm or more to a volume of the whole pores of 4.0% or more and 90.0% or less.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: July 20, 2021
    Assignee: CHIYODA CORPORATION
    Inventors: Chikako Hashimoto, Ryuichi Kanai, Zhixiong You, Tetsuro Matsumura, Yoichi Umehara
  • Publication number: 20200290028
    Abstract: A vinylpyridine resin for a catalyst support; a method for producing thereof; and a catalyst for carbonylation of methanol are disclosed. The vinylpyridine resin has: content of nitrogen derived from a pyridine group of 3.00% by mass or more and 8.00% by mass or less; degree of crosslinking of 35% by mole or more and 70% by mole or less; molar ratio C/N of carbon atoms to nitrogen atoms of 12.00 or more and 36.00 or less; total pore volume of 0.20 cc/g or more and 0.45 cc/g or less; specific surface area of 70.0 m2/g or more and 280 m2/g or less; average pore diameter of 5.0 nm or more and 25.0 nm or less; and proportion of a volume of pores having a pore diameter of 10 nm or more to a volume of the whole pores of 4.0% or more and 90.0% or less.
    Type: Application
    Filed: March 7, 2017
    Publication date: September 17, 2020
    Applicants: CHIYODA CORPORATION, CHIYODA CORPORATION
    Inventors: Chikako Hashimoto, Ryuichi Kanai, Zhixiong You, Tetsuro Matsumura, Yoichi Umehara
  • Patent number: 10376864
    Abstract: This invention provides a carrier for a synthesis gas production catalyst that can suppress carbon depositions and allows to efficiently produce synthesis gas on a stable basis for a long duration of time when producing synthesis gas by carbon dioxide reforming. It is a carrier to be used for producing synthesis gas containing carbon monoxide and hydrogen from source gas containing methane-containing light hydrocarbons and carbon dioxide. The carrier contains magnesium oxide grains and calcium oxide existing on the surfaces of magnesium oxide grains. The calcium oxide content thereof is between 0.005 mass % and 1.5 mass % in terms of Ca.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: August 13, 2019
    Assignee: CHIYODA CORPORATION
    Inventors: Fuyuki Yagi, Atsuro Nagumo, Ryuichi Kanai
  • Publication number: 20190030515
    Abstract: This invention provides a carrier for a synthesis gas production catalyst that can suppress carbon depositions and allows to efficiently produce synthesis gas on a stable basis for a long duration of time when producing synthesis gas by carbon dioxide reforming. It is a carrier to be used for producing synthesis gas containing carbon monoxide and hydrogen from source gas containing methane-containing light hydrocarbons and carbon dioxide. The carrier contains magnesium oxide grains and calcium oxide existing on the surfaces of magnesium oxide grains. The calcium oxide content thereof is between 0.005 mass % and 1.5 mass % in terms of Ca.
    Type: Application
    Filed: June 5, 2017
    Publication date: January 31, 2019
    Applicant: CHIYODA CORPORATION
    Inventors: Fuyuki Yagi, Atsuro Nagumo, Ryuichi Kanai
  • Patent number: 9638684
    Abstract: Provided is a method of evaluating a resin capable of quantitatively evaluating a deterioration degree of the resin with high accuracy and ease. The method includes evaluating the resin based on a shift of a characteristic peak representing a deterioration degree of the resin, the peak being observed in thermal analysis of the resin by a temperature increase, to lower temperatures.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: May 2, 2017
    Assignee: CHIYODA CORPORATION
    Inventors: Zhixiong You, Ryuichi Kanai, Yoichi Umehara, Takeshi Minami
  • Publication number: 20150147816
    Abstract: Provided is a method of evaluating a resin capable of quantitatively evaluating a deterioration degree of the resin with high accuracy and ease. The method includes evaluating the resin based on a shift of a characteristic peak representing a deterioration degree of the resin, the peak being observed in thermal analysis of the resin by a temperature increase, to lower temperatures.
    Type: Application
    Filed: November 19, 2014
    Publication date: May 28, 2015
    Applicant: CHIYODA CORPORATION
    Inventors: Zhixiong You, Ryuichi Kanai, Yoichi Umehara, Takeshi Minami
  • Patent number: 8703120
    Abstract: The invention, in some aspects, relates to the selective killing of cancer stem cells by oncolytic Herpes virus mediated oncolysis. In some aspects, the invention relates to methods for treating a subject having a cancer stem cell by administering to the subject an oncolytic Herpes virus. In other aspects, the invention provides methods for evaluating the efficacy of an oncolytic Herpes virus for killing cancer stem cells.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: April 22, 2014
    Assignee: The General Hospital Corporation
    Inventors: Robert Martuza, Samuel Rabkin, Hiroaki Wakimoto, Ryuichi Kanai
  • Publication number: 20110177032
    Abstract: The invention, in some aspects, relates to the selective killing of cancer stem cells by oncolytic Herpes virus mediated oncolysis. In some aspects, the invention relates to methods for treating a subject having a cancer stem cell by administering to the subject an oncolytic Herpes virus. In other aspects, the invention provides methods for evaluating the efficacy of an oncolytic Herpes virus for killing cancer stem cells.
    Type: Application
    Filed: May 4, 2009
    Publication date: July 21, 2011
    Applicant: The General Hospital Corporation d/b/a Massachusetts General Hospital
    Inventors: Robert Martuza, Samuel Rabkin, Hiroaki Wakimoto, Ryuichi Kanai
  • Patent number: 7790451
    Abstract: The present invention provides a recombinant HSV having the ability to specifically kill tumor cells such as human glioma cells in vivo, useful and safe for treating human glioma, etc. and that can easily put to clinical use. A new recombinant HSV, KeM345, is constructed by inserting a ?34.5 gene transcription unit, which is expressed by Musashi1 promoter, into a ribonucleotide reductase gene site of the genome of a herpes simplex virus (HSV) previously attenuated, by means of homologous recombination and obtained as a purified strain. Since KeM345 is a recombinant virus itself, it can not only induce viral proliferation by being transmitted to culture cells but can also induce viral replication equivalent to that of wild-type HSV, showing an excellent cytotoxic effect (cytolytic ability) selectively upon a malignant glioma.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: September 7, 2010
    Assignee: Keio University
    Inventors: Takahito Yazaki, Ryuichi Kanai, Takeshi Kawase, Hideyuki Okano
  • Publication number: 20090117644
    Abstract: The present invention provides a recombinant HSV having the ability to specifically kill tumor cells such as human glioma cells in vivo, useful and safe for treating human glioma, etc. and that can easily put to clinical use. A new recombinant HSV, KeM345, is constructed by inserting a ?34.5 gene transcription unit, which is expressed by Musashil promoter, into a ribonucleotide reductase gene site of the genome of a herpes simplex virus (HSV) previously attenuated, by means of homologous recombination and obtained as a purified strain. Since KeM345 is a recombinant virus itself, it can not only induce viral proliferation by being transmitted to culture cells but can also induce viral replication equivalent to that of wild-type HSV, showing an excellent cytotoxic effect (cytolytic ability) selectively upon a malignant glioma.
    Type: Application
    Filed: September 14, 2006
    Publication date: May 7, 2009
    Applicant: KEIO UNIVERSITY
    Inventors: Takahito Yazaki, Ryuichi Kanai, Takeshi Kawase, Hideyuki Okano
  • Patent number: 6323385
    Abstract: A process for the wet processing of a dioxin-containing material, wherein the material is contacted with an aqueous solution, acidified with hydrochloric acid and containing a catalyst dissolved therein, at a temperature lower than 100° C. to decompose the dioxins into harmless substances with a decomposition rate of at least 60%.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: November 27, 2001
    Assignee: Chiyoda Corporation
    Inventors: Mamoru Iwasaki, Ryuichi Kanai, Kazushige Kawamura, Hideki Sugiyama, Osamu Togari, Sachio Asaoka, Minoru Uchida, Dai Takeda