Patents by Inventor Mai Ito

Mai Ito 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: 9615580
    Abstract: Disclosed is a compound represented by formula (1): wherein A1 represents N(O)p or CH; A2 represents N(O)q; R1 represents a trifluoromethyl group, a halogen atom or a hydrogen atom; R2 represents a C1-C3 perfluoroalkyl group, p represents 0 or 1; q represents 0 or 1; n represents 0, 1 or 2; and m represents 0, 1 or 2, having an excellent controlling effect on pests.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: April 11, 2017
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Masaki Takahashi, Takamasa Tanabe, Mai Ito, Atsushi Iwata, Yoshihiko Nokura
  • Patent number: 9573963
    Abstract: A fused heterocyclic compound represented by formula (1) or an N-oxide thereof has an excellent control effect on pests: wherein A1 represents N or the like, A2 represents NR6 or the like, A3 represents CR12 or the like, R1 represents a C1 to C6 chain hydrocarbon group or the like, R2, R4 and R5 are the same or different and represent a C1 to C3 alkyl group optionally having one or more halogen atoms or the like, R3 represents a C1 to C6 chain hydrocarbon group or the like, R6 represents a C1 to C6 chain hydrocarbon group or the like, any one set of R9 and R10, R10 and R11, and R11 and R12 in R9, R10, R11 and R12, together with the carbon atoms to which they are bound, forms a ring, and n represents 0, 1 or 2.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: February 21, 2017
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Takamasa Tanabe, Mai Ito, Chie Shimizu, Yoshihiko Nokura
  • Patent number: 9403771
    Abstract: There is provided a compound having an excellent controlling effect on pests represented by the formula (1): wherein, A1 represents —NR7—, etc., A2 represents a nitrogen atom, etc., A3 represents a nitrogen atom, etc., R1 represents a C1-C6 chain hydrocarbon group optionally substituted by one or more atoms or groups selected from Group X, etc., R2, R3 and R4 are the same or different and each represents a C1-C6 chain hydrocarbon group optionally substituted by one or more halogen atoms, etc., R5 and R6 are the same or different and each represents a C1-C6 chain hydrocarbon group optionally substituted by one or more atoms or groups selected from Group X, etc., R7 represents a C1-C6 chain hydrocarbon group optionally substituted by one or more atoms or groups selected from Group W, etc., n represents 0, 1 or 2, or an N-oxide thereof.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: August 2, 2016
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masaki Takahashi, Takamasa Tanabe, Mai Ito, Yoshihiko Nokura
  • Patent number: 9364000
    Abstract: Fused heterocyclic compounds of formula (1): (G1 and G2 represent a nitrogen atom or the like, A1 and A2 represent a nitrogen atom or the like, A3 represents —NR8— or the like, A4 and A5 represent a nitrogen atom or the like, R1 represents a C1-C6 chain hydrocarbon group or the like optionally having one or more atoms or groups selected from a group X, R2 and R3 are the same or different and represent a C1-C6 chain hydrocarbon group or the like optionally having one or more atoms or groups selected from the group X, R8 represents a C1-C6 chain hydrocarbon group or the like optionally having one or more atoms or groups selected from a group W, and n represents 0, 1 or 2), or N-oxides thereof are described. The disclosed compounds are very effective for pest control.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: June 14, 2016
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masaki Takahashi, Mai Ito, Yoshihiko Nokura, Takamasa Tanabe, Chie Shimizu
  • Publication number: 20160159743
    Abstract: There is provided a compound having an excellent controlling effect on pests represented by the formula (1): wherein, A1 represents —NR7—, etc., A2 represents a nitrogen atom, etc., A3 represents a nitrogen atom, etc., R1 represents a C1-C6 chain hydrocarbon group optionally substituted by one or more atoms or groups selected from Group X, etc., R2, R3 and R4 are the same or different and each represents a C1-C6 chain hydrocarbon group optionally substituted by one or more halogen atoms, etc., R5 and R6 are the same or different and each represents a C1-C6 chain hydrocarbon group optionally substituted by one or more atoms or groups selected from Group X, etc., R7 represents a C1-C6 chain hydrocarbon group optionally substituted by one or more atoms or groups selected from Group W, etc., n represents 0, 1 or 2, or an N-oxide thereof.
    Type: Application
    Filed: February 11, 2016
    Publication date: June 9, 2016
    Inventors: Masaki TAKAHASHI, Takamasa TANABE, Mai ITO, Yoshihiko NOKURA
  • Patent number: 9353110
    Abstract: There is provided a compound having an excellent controlling effect on pests represented by the formula (1): wherein, A1 represents —NR7—, etc., A2 represents a nitrogen atom, etc., A3 represents a nitrogen atom, etc., R1 represents a C1-C6 chain hydrocarbon group optionally substituted by one or more atoms or groups selected from Group X, etc., R2, R3 and R4 are the same or different and each represents a C1-C6 chain hydrocarbon group optionally substituted by one or more halogen atoms, etc., R5 and R6 are the same or different and each represents a C1-C6 chain hydrocarbon group optionally substituted by one or more atoms or groups selected from Group X, etc., R7 represents a C1-C6 chain hydrocarbon group optionally substituted by one or more atoms or groups selected from Group W, etc., n represents 0, 1 or 2, or an N-oxide thereof.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: May 31, 2016
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masaki Takahashi, Takamasa Tanabe, Mai Ito, Yoshihiko Nokura
  • Patent number: 9328121
    Abstract: The fused heterocyclic compound represented by formula (1) has excellent effectiveness in pest control. In the formula (1), J represents formula J1, J2, J3, J4, J5 or J6; A1; A2; A3; A4; A5; B1; B2; B4; B5; and B6 each represent a nitrogen atom, etc.; B3 represents NR15, etc.; R1 represents a C1-C6 chain hydrocarbon group, etc., optionally substituted with one or more atoms or groups selected from group X; the pairs R2 and R3 and R5 and R6 are the same or different, and represent a C1-C6 chain hydrocarbon group, etc., optionally substituted with one or more atoms or groups selected from group X; R4 represents a C1-C6 chain hydrocarbon group, etc., optionally substituted with one or more atoms or groups selected from group W; and n represents 0, 1, or 2.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: May 3, 2016
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masaki Takahashi, Mai Ito, Yoshihiko Nokura, Takamasa Tanabe, Chie Shimizu
  • Publication number: 20160102100
    Abstract: The fused heterocyclic compound represented by formula (1) has excellent effectiveness in pest control. In the formula (1), J represents formula J1, J2, J3, J4, J5 or J6; A1; A2; A3; A4; A5; B1; B2; B4; B5; and B6 each represent a nitrogen atom, etc.; B3 represents NR15, etc.; R1 represents a C1-C6 chain hydrocarbon group, etc., optionally substituted with one or more atoms or groups selected from group X; the pairs R2 and R3 and R5 and R6 are the same or different, and represent a C1-C6 chain hydrocarbon group, etc., optionally substituted with one or more atoms or groups selected from group X; R4 represents a C1-C6 chain hydrocarbon group, etc., optionally substituted with one or more atoms or groups selected from group W; and n represents 0, 1, or 2.
    Type: Application
    Filed: December 17, 2015
    Publication date: April 14, 2016
    Inventors: Masaki TAKAHASHI, Mai ITO, Yoshihiko NOKURA, Takamasa TANABE, Chie SHIMIZU
  • Patent number: 9278983
    Abstract: A fused heterocyclic compound the formula (1): wherein A1 represents —NR8—, and the like; A2 represents a nitrogen atom, and the like; A3 represents a nitrogen atom, and the like; R1 represents a C1-C6 chain hydrocarbon group optionally having one or more atoms or groups selected from Group X, and the like; R2, R3, R4, and R5 are same or different and represent independently a C1-C6 chain hydrocarbon group optionally having one or more halogen atoms, and the like; R6 and R7 are same or different and represent independently a C1-C6 chain hydrocarbon group optionally having one or more atoms or groups selected from Group X, and the like; R8 represents a C1-C6 chain hydrocarbon group optionally having one or more atoms or groups selected from Group W, and the like; n represents 0, 1 or 2. The compound has an excellent activity of controlling pests.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: March 8, 2016
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hayato Takyo, Masaki Takahashi, Takamasa Tanabe, Yoshihiko Nokura, Mai Ito, Atsushi Iwata
  • Patent number: 9271500
    Abstract: The fused heterocyclic compound represented by formula (1), or an N-oxide thereof, has excellent effectiveness in pest control. In the formula G1 represents a nitrogen atom, etc.; G2 represents a nitrogen atom, etc.; A1 represents a nitrogen atom, etc.; A2 represents a nitrogen atom, etc.; A3 represents a nitrogen atom, etc.; A4 represents a nitrogen atom, etc.; A5 represents a nitrogen atom, etc.; R1 represents a C1-C6 chain hydrocarbon group, etc., optionally having one or more atoms or groups selected from group X; R2, R3 and R4 are the same or different, and represent a C1-C6 chain hydrocarbon group, etc., optionally having one or more atoms or groups selected from group X; R5 and R6 are the same or different, and represent a C1-C6 chain hydrocarbon group, etc., optionally having one or more atoms or groups selected from group X; and n represents 0, 1, 2.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: March 1, 2016
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masaki Takahashi, Mai Ito, Yoshihiko Nokura, Takamasa Tanabe, Chie Shimizu
  • Patent number: 9260436
    Abstract: The fused heterocyclic compound represented by formula (1) has excellent effectiveness in pest control. In the formula (1), J represents formula J1, J2, J3, J4, J5 or J6; A1; A2; A3; A4; A5; B1; B2; B4; B5; and B6 each represent a nitrogen atom, etc.; B3 represents NR5, etc.; R1 represents a C1-C6 chain hydrocarbon group, etc., optionally having one or more atoms or groups selected from group X; the pairs R2 and R3 and R5 and R6 are the same or different, and represent a C1-C6 chain hydrocarbon group, etc., optionally having one or more atoms or groups selected from group X; R4 represents a C1-C6 chain hydrocarbon group, etc., optionally having one or more atoms or groups selected from group W; and n represents 0, 1, or 2.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: February 16, 2016
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masaki Takahashi, Mai Ito, Yoshihiko Nokura, Takamasa Tanabe, Chie Shimizu
  • Publication number: 20160009715
    Abstract: There is provided a compound having an excellent controlling effect on pests represented by the formula (1): wherein, A1 represents —NR7—, etc., A2 represents a nitrogen atom, etc., A3 represents a nitrogen atom, etc., R1 represents a C1-C6 chain hydrocarbon group optionally substituted by one or more atoms or groups selected from Group X, etc., R2, R3 and R4 are the same or different and each represents a C1-C6 chain hydrocarbon group optionally substituted by one or more halogen atoms, etc., R5 and R6 are the same or different and each represents a C1-C6 chain hydrocarbon group optionally substituted by one or more atoms or groups selected from Group X, etc., R7 represents a C1-C6 chain hydrocarbon group optionally substituted by one or more atoms or groups selected from Group W, etc., n represents 0, 1 or 2, or an N-oxide thereof.
    Type: Application
    Filed: July 17, 2015
    Publication date: January 14, 2016
    Inventors: Masaki TAKAHASHI, Takamasa TANABE, Mai ITO, Yoshihiko NOKURA
  • Publication number: 20160002260
    Abstract: A fused heterocyclic compound represented by formula (1) or an N-oxide thereof has an excellent control effect on pests: wherein A1 represents N or the like, A2 represents NR6 or the like, A3 represents CR12 or the like, R1 represents a C1 to C6 chain hydrocarbon group or the like, R2, R4 and R5 are the same or different and represent a C1 to C3 alkyl group optionally having one or more halogen atoms or the like, R3 represents a C1 to C6 chain hydrocarbon group or the like, R6 represents a C1 to C6 chain hydrocarbon group or the like, any one set of R9 and R10, R10 and R11, and R11 and R12 in R9, R10, R11 and R12, together with the carbon atoms to which they are bound, forms a ring, and n represents 0, 1 or 2.
    Type: Application
    Filed: February 19, 2014
    Publication date: January 7, 2016
    Inventors: Takamasa TANABE, Mai ITO, Chie SHIMIZU, Yoshihiko NOKURA
  • Publication number: 20150373982
    Abstract: Fused heterocyclic compounds of formula (1): (G1 and G2 represent a nitrogen atom or the like, A1 and A2 represent a nitrogen atom or the like, A3 represents —NR8— or the like, A4 and A5 represent a nitrogen atom or the like, R1 represents a C1-C6 chain hydrocarbon group or the like optionally having one or more atoms or groups selected from a group X, R2 and R3 are the same or different and represent a C1-C6 chain hydrocarbon group or the like optionally having one or more atoms or groups selected from the group X, R8 represents a C1-C6 chain hydrocarbon group or the like optionally having one or more atoms or groups selected from a group W, and n represents 0, 1 or 2), or N-oxides thereof are described. The disclosed compounds are very effective for pest control.
    Type: Application
    Filed: September 10, 2015
    Publication date: December 31, 2015
    Inventors: Masaki TAKAHASHI, Mai ITO, Yoshihiko NOKURA, Takamasa TANABE, Chie SHIMIZU
  • Patent number: 9193964
    Abstract: The present invention provides, as an enzyme which can be used for enzyme replacement therapy for Fabry disease, a protein having ?-galactosidase activity, which shows no allergic adverse side effect, shows a high stability in blood, and can be easily incorporated into a cell of an affected organ. The protein of the present invention is a protein which has acquired ?-galactosidase activity by changing the structure of the active site of wild-type human ?-N-acetylgalactosaminidase.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: November 24, 2015
    Assignees: TOKYO METROPOLITAN INSTITUTE OF MEDICAL SCIENCE, ALTIF LABORATORIES
    Inventors: Hitoshi Sakuraba, Youichi Tajima, Mai Ito, Seiichi Aikawa, Fumiko Aikawa
  • Publication number: 20150313234
    Abstract: Disclosed is a compound represented by formula (1): wherein A1 represents N(O)p or CH; A2 represents N(O)q; R1 represents a trifluoromethyl group, a halogen atom or a hydrogen atom; R2 represents a C1-C3 perfluoroalkyl group, p represents 0 or 1; q represents 0 or 1; n represents 0, 1 or 2; and m represents 0, 1 or 2, having an excellent controlling effect on pests.
    Type: Application
    Filed: December 26, 2013
    Publication date: November 5, 2015
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Masaki TAKAHASHI, Takamasa TANABE, Mai ITO, Atsushi IWATA, Yoshihiko NOKURA
  • Patent number: 9156838
    Abstract: This fused heterocyclic compound represented in formula (1) has excellent effectiveness in pest control. In the formula, A1 represents —NR4—, etc.; A2 represents a nitrogen atom, etc.; R1 represents an ethyl group, a cyclopropyl group, or a cyclopropylmethyl group; R2 represents —S(O)mR6 or —C(R7)(CF3)2; R4 represents a C1-C6 alkyl group optionally having one or more halogen atoms; R6 represents a C1-C6 haloalkyl group; R7 represents a fluorine atom or a chlorine atom, and m and n each represents 0, 1 or 2.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: October 13, 2015
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masaki Takahashi, Takamasa Tanabe, Mai Ito, Chie Shimizu, Yoshihiko Nokura
  • Publication number: 20150246911
    Abstract: This fused heterocyclic compound represented in formula (1) has excellent effectiveness in pest control. In the formula, A1 represents —NR4—, etc.; A2 represents a nitrogen atom, etc.; R1 represents an ethyl group, a cyclopropyl group, or a cyclopropylmethyl group; R2 represents —S(O)mR6 or —C(R7)(CF3)2; R4 represents a C1-C6 alkyl group optionally having one or more halogen atoms; R6 represents a C1-C6 haloalkyl group; R7 represents a fluorine atom or a chlorine atom, and m and n each represents 0, 1 or 2.
    Type: Application
    Filed: June 12, 2013
    Publication date: September 3, 2015
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Masaki Takahashi, Takamasa Tanabe, Mai Ito, Chie Shimizu, Yoshihiko Nokura
  • Patent number: 9120823
    Abstract: There is provided a compound having an excellent controlling effect on pests represented by the formula (1): wherein, A1 represents —NR7—, etc., A2 represents a nitrogen atom, etc., A3 represents a nitrogen atom, etc., R1 represents a C1-C6 chain hydrocarbon group optionally substituted by one or more atoms or groups selected from Group X, etc., R2, R3 and R4 are the same or different and each represents a C1-C6 chain hydrocarbon group optionally substituted by one or more halogen atoms, etc., R5 and R6 are the same or different and each represents a C1-C6 chain hydrocarbon group optionally substituted by one or more atoms or groups selected from Group X, etc., R7 represents a C1-C6 chain hydrocarbon group optionally substituted by one or more atoms or groups selected from Group W, etc., n represents 0, 1 or 2, or an N-oxide thereof.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: September 1, 2015
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masaki Takahashi, Takamasa Tanabe, Mai Ito, Yoshihiko Nokura
  • Patent number: 9120792
    Abstract: A compound represented by formula (1) and an N-oxide thereof have excellent pest control effect. (In the formula, Het to which R1—S(O)n is bonded represents a five-membered aromatic heterocyclic ring represented by formula H1, H2, H3 or H4 (wherein Y1 represents an oxygen atom or the like; Y2 represents an oxygen atom or the like; G1, G2 and G3 may be the same or different and each represents a nitrogen atom or the like; R1 represents a C1-C6 alkyl group which may have one or more atoms or groups selected from the group X, or the like; and n represents 0, 1 or 2); A1 represents an oxygen atom or the like; A2 represents a nitrogen atom or the like; A3 represents a nitrogen atom or the like; and R2 and R3 may be the same or different and each represents a C1-C6 chain hydrocarbon group which may have one or more atoms or groups selected from the group X, or the like.).
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: September 1, 2015
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yoshihiko Nokura, Mai Ito, Chie Shimizu, Hajime Mizuno