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).

  • 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
  • Publication number: 20150197532
    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: March 26, 2015
    Publication date: July 16, 2015
    Inventors: Masaki TAKAHASHI, Takamasa TANABE, Mai ITO, Yoshihiko NOKURA
  • Publication number: 20150191474
    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: Application
    Filed: June 10, 2013
    Publication date: July 9, 2015
    Inventors: Masaki Takahashi, Mai Ito, Yoshihiko Nokura, Takamasa Tanabe, Chie Shimizu
  • Publication number: 20150181880
    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: Application
    Filed: June 10, 2013
    Publication date: July 2, 2015
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Masaki Takahashi, Mai Ito, Yoshihiko Nokura, Takamasa Tanabe, Chie Shimizu
  • Publication number: 20150166573
    Abstract: This fused heterocyclic compound represented by formula (1) (in the formula, G1 represents a nitrogen atom or the like, G2 represents a nitrogen atom or the like, A1 represents a nitrogen atom or the like, A2 represents a nitrogen atom or the like, A3 represents —NR8— or the like, A4 represents a nitrogen atom or the like, A5 represents 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 an N-oxide thereof, is very effective for pest control.
    Type: Application
    Filed: May 23, 2013
    Publication date: June 18, 2015
    Inventors: Masaki Takahashi, Mai Ito, Yoshihiko Nokura, Takamasa Tanabe, Chie Shimizu
  • Patent number: 9018134
    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: August 3, 2012
    Date of Patent: April 28, 2015
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masaki Takahashi, Takamasa Tanabe, Mai Ito, Yoshihiko Nokura, Atsushi Iwata
  • Publication number: 20150094329
    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: Application
    Filed: May 23, 2013
    Publication date: April 2, 2015
    Inventors: Yoshihiko Nokura, Mai Ito, Chie Shimizu, Hajime Mizuno
  • Publication number: 20140364444
    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: Application
    Filed: August 21, 2014
    Publication date: December 11, 2014
    Inventors: Hayato TAKYO, Masaki TAKAHASHI, Takamasa TANABE, Yoshihiko NOKURA, Mai ITO, Atsushi IWATA
  • Patent number: 8853238
    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: December 22, 2011
    Date of Patent: October 7, 2014
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hayato Takyo, Masaki Takahashi, Takamasa Tanabe, Yoshihiko Nokura, Mai Ito, Atsushi Iwata
  • Publication number: 20140194290
    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: August 3, 2012
    Publication date: July 10, 2014
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Masaki Takahashi, Takamasa Tanabe, Mai Ito, Yoshihiko Nokura, Atsushi Iwata
  • Publication number: 20140171493
    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: Application
    Filed: January 23, 2014
    Publication date: June 19, 2014
    Applicants: ALTIF LABORATORIES, TOKYO METROPOLITAN INSTITUTE OF MEDICAL SCIENCE
    Inventors: Hitoshi Sakuraba, Youichi Tajima, Mai Ito, Seiichi Aikawa, Fumiko Aikawa
  • Patent number: 8668907
    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: November 2, 2012
    Date of Patent: March 11, 2014
    Assignees: Tokyo Metropolitan Institute of Medical Science, Altif Laboratories
    Inventors: Hitoshi Sakuraba, Youichi Tajima, Mai Ito, Seiichi Aikawa, Fumiko Aikawa
  • Publication number: 20140018373
    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: Application
    Filed: December 22, 2011
    Publication date: January 16, 2014
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Hayato Takyo, Masaki Takahashi, Takamasa Tanabe, Yoshihiko Nokura, Mai Ito, Atsushi Iwata
  • Patent number: 8323640
    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: March 21, 2011
    Date of Patent: December 4, 2012
    Assignees: Tokyo Metropolitan Organization For Medical Research, Altif Laboratories
    Inventors: Hitoshi Sakuraba, Youichi Tajima, Mai Ito, Seiichi Aikawa, Fumiko Aikawa
  • Publication number: 20110171198
    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: Application
    Filed: March 21, 2011
    Publication date: July 14, 2011
    Applicants: TOKYO METROPOLITAN ORGANIZATION FOR MEDICAL RESEARCH, ALTIF LABORATORIES
    Inventors: Hitoshi Sakuraba, Youichi Tajima, Mai Ito, Seiichi Aikawa, Fumiko Aikawa
  • Patent number: 7935336
    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: November 17, 2006
    Date of Patent: May 3, 2011
    Assignees: Tokyo Metropolitan Organization for Medical Research, ALTIF Laboratories
    Inventors: Hitoshi Sakuraba, Youichi Tajima, Mai Ito, Seiichi Aikawa, Fumiko Aikawa
  • Publication number: 20100166728
    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: Application
    Filed: November 17, 2006
    Publication date: July 1, 2010
    Applicants: TOKYO METROPOLITAN ORGANIZATION FOR MEDICAL RESEARCH, ALTIF LABORATORIES
    Inventors: Hitoshi Sakuraba, Youichi Tajima, Mai Ito, Seiichi Aikawa, Fumiko Aikawa
  • Publication number: 20090297592
    Abstract: It is an object of the present invention to provide an enzyme preparation which is excellent in stability in blood (blood residence) and in transfer to a target organ (targeting property), and can be used effectively in enzyme replacement therapy or the like. This problem is solved by a lipid vesicle composition wherein vesicles composed of a lipid bilayer membrane are encapsulating an enzyme, the composition being capable of retaining stably the activity of the enzyme even outside the stable pH range of the enzyme.
    Type: Application
    Filed: May 11, 2006
    Publication date: December 3, 2009
    Applicants: JCR Pharmaceuticals Co., Ltd., Tokyo Metropolitan Organization for Medical Research
    Inventors: Hitoshi Sakuraba, Youichi Tajima, Ikuo Kawashima, Mai Ito, Shinji Takeoka, Katsuji Ohta, Manabu Ito, Atsushi Mizuno