Patents by Inventor Eiji Kawanishi

Eiji Kawanishi 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: 20240120709
    Abstract: The present technology provides a surface emitting element capable of enabling highly accurate detection of an optical characteristic of an emitted light and/or enabling adjustment of the optical characteristic of the emitted light. The surface emitting element of the present technology provides a surface emitting element including a light emitting layer, a characteristic layer that is disposed on an optical path of light generated in the light emitting layer, exhibits an electrical characteristic due to light incidence, and/or has variability in an optical characteristic due to voltage application, and a plurality of electrodes provided on the characteristic layer.
    Type: Application
    Filed: January 19, 2022
    Publication date: April 11, 2024
    Inventors: EIJI NAKAYAMA, TATSUSHI HAMAGUCHI, KENTARO HAYASHI, RINTARO KODA, HIDEKAZU KAWANISHI
  • Publication number: 20240002343
    Abstract: The present invention provides a compound for treating or preventing diseases caused by mitochondrial hyperfission. The present invention provides a compound represented by formula (1): wherein R1 and R1? are each independently hydrogen, an optionally substituted lower alkyl, an optionally substituted lower cycloalkyl, and the like; R2 is an optionally substituted lower alkyl, an optionally substituted lower cycloalkyl, and the like; R3 and R4 are each independently hydrogen, halogen, hydroxy, nitro, cyano, an optionally substituted lower alkyl, and the like; R5 and R6 are each independently an optionally substituted lower alkyl; an optionally substituted lower cycloalkyl, and the like; X is nitrogen or oxygen; Y is carbon, nitrogen or oxygen; and a broken line represents the presence or absence of a bond; or a pharmaceutically acceptable salt, a solvate, or a prodrug thereof.
    Type: Application
    Filed: November 29, 2021
    Publication date: January 4, 2024
    Applicant: KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Eiji KAWANISHI, Akio OJIDA, Motohiro NISHIDA, Yuri KATO
  • Patent number: 10961269
    Abstract: A method for preparing a compound represented by general formula I: or a salt thereof includes a step of reacting a compound represented by formula II: with a reducing agent to cleave an oxazolidine ring fused to a cycle A?. The reducing agent includes at least one of phosphines, metal hydrides, or transition metal catalysts in the presence of hydrogen gas.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: March 30, 2021
    Assignees: MITSUBISHI TANABE PHARMA CORPORATION, OSAKA UNIVERSITY
    Inventors: Satoshi Obika, Eiji Kawanishi, Hiroaki Sawamoto, Shuhei Yamakoshi, Yuuki Aral, Shinji Kumagai
  • Publication number: 20180282363
    Abstract: A compound of the formula: wherein Ring A and Ring B are: (1) Ring A is an optionally substituted unsaturated monocyclic heterocyclic ring, and Ring B is an optionally substituted unsaturated monocyclic heterocyclic ring, an optionally substituted unsaturated fused heterobicyclic ring, or an optionally substituted benzene ring, (2) Ring A is an optionally substituted benzene ring, and Ring B is an optionally substituted unsaturated monocyclic heterocyclic ring or an optionally substituted unsaturated fused heterobicyclic ring, or (3) Ring A is an optionally substituted unsaturated fused heterobicyclic ring, and Ring B are independently an optionally substituted unsaturated monocyclic heterocyclic ring, an optionally substituted unsaturated fused heterobicyclic ring, or an optionally substituted benzene ring; X is a carbon atom or a nitrogen atom; Y is —(CH2)n— (n is 1 or 2); or a pharmaceutically acceptable salt thereof, or a prodrug thereof.
    Type: Application
    Filed: June 5, 2018
    Publication date: October 4, 2018
    Applicant: MITSUBISHI TANABE PHARMA CORPORATION
    Inventors: Sumihiro NOMURA, Eiji KAWANISHI, Kiichiro UETA
  • Publication number: 20180251488
    Abstract: The present invention provides a method for producing guanidine crosslinked artificial nucleic acid (abbreviated hereinafter as GuNA), and an intermediate compound for the production thereof. Specifically, the present invention provides a method for producing a compound represented by general formula I: (in the formula, R1, R2, R3, R4, R5, R6, m and ring A are as defined in the specification) or a salt thereof wherein a reducing agent is reacted with a compound represented by general formula II: (in the formula, R1, R2, R3, R4, R5, R6, m, and ring A? are as defined in the specification).
    Type: Application
    Filed: September 20, 2016
    Publication date: September 6, 2018
    Applicants: MITSUBISHI TANABE PHARMA CORPORATION, OSAKA UNIVERSITY
    Inventors: Satoshi OBIKA, Eiji KAWANISHI, Hiroaki SAWAMOTO, Shuhei YAMAKOSHI, Yuuki ARAI, Shinji KUMAGAI
  • Publication number: 20160108078
    Abstract: A compound of the formula: wherein Ring A and Ring B are: (1) Ring A is an optionally substituted unsaturated monocyclic heterocyclic ring, and Ring B is an optionally substituted unsaturated monocyclic heterocyclic ring, an optionally substituted unsaturated fused heterobicyclic ring, or an optionally substituted benzene ring, (2) Ring A is an optionally substituted benzene ring, and Ring B is an optionally substituted unsaturated monocyclic heterocyclic ring or an optionally substituted unsaturated fused heterobicyclic ring, or (3) Ring A is an optionally substituted unsaturated fused heterobicyclic ring, and Ring B are independently an optionally substituted unsaturated monocyclic heterocyclic ring, an optionally substituted unsaturated fused heterobicyclic ring, or an optionally substituted benzene ring; X is a carbon atom or a nitrogen atom; Y is —(CH2)n— (n is 1 or 2); or a pharmaceutically acceptable salt thereof, or a prodrug thereof.
    Type: Application
    Filed: December 28, 2015
    Publication date: April 21, 2016
    Applicant: MITSUBISHI TANABE PHARMA CORPORATION
    Inventors: Sumihiro NOMURA, Eiji KAWANISHI, Kiichiro UETA
  • Patent number: 8969376
    Abstract: The present invention relates to a compound represented by formula [I]: wherein: R1 is hydrogen, halogen, lower alkyl or cyano; Ring A is an optionally substituted heterocyclic group; Ring B is an optionally substituted 3 to 6-membered monocyclic group; and Y is optionally substituted amino, optionally substituted cyclic amino, optionally substituted aliphatic 3 to 6-membered monocyclyloxy, optionally substituted lower alkyl or optionally substituted lower alkyl-O—, or a pharmaceutically acceptable salt thereof, and to their use as PDE10 inhibitor.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: March 3, 2015
    Assignee: Mitsubishi Tanabe Pharma Corporation
    Inventors: Eiji Kawanishi, Mitsuya Hongu, Yoshihito Tanaka
  • Publication number: 20140296506
    Abstract: A compound of the formula: wherein Ring A and Ring B are: (1) Ring A is an optionally substituted unsaturated monocyclic heterocyclic ring, and Ring B is an optionally substituted unsaturated monocyclic heterocyclic ring, an optionally substituted unsaturated fused heterobicyclic ring, or an optionally substituted benzene ring, (2) Ring A is an optionally substituted benzene ring, and Ring B is an optionally substituted unsaturated monocyclic heterocyclic ring or an optionally substituted unsaturated fused heterobicyclic ring, or (3) Ring A is an optionally substituted unsaturated fused heterobicyclic ring, and Ring B are independently an optionally substituted unsaturated monocyclic heterocyclic ring, an optionally substituted unsaturated fused heterobicyclic ring, or an optionally substituted benzene ring; X is a carbon atom or a nitrogen atom; Y is —(CH2)n— (n is 1 or 2); or a pharmaceutically acceptable salt thereof, or a prodrug thereof.
    Type: Application
    Filed: June 9, 2014
    Publication date: October 2, 2014
    Inventors: Sumihiro NOMURA, Eiji KAWANISHI, Kiichiro UETA
  • Patent number: 8785403
    Abstract: A compound of the formula: wherein Ring A and Ring B are: (1) Ring A is an optionally substituted unsaturated monocyclic heterocyclic ring, and Ring B is an optionally substituted unsaturated monocyclic heterocyclic ring, an optionally substituted unsaturated fused heterobicyclic ring, or an optionally substituted benzene ring, (2) Ring A is an optionally substituted benzene ring, and Ring B is an optionally substituted unsaturated monocyclic heterocyclic ring or an optionally substituted unsaturated fused heterobicyclic ring, or (3) Ring A is an optionally substituted unsaturated fused heterobicyclic ring, and Ring B are independently an optionally substituted unsaturated monocyclic heterocyclic ring, an optionally substituted unsaturated fused heterobicyclic ring, or an optionally substituted benzene ring; X is a carbon atom or a nitrogen atom; Y is —(CH2)n— (n is 1 or 2); or a pharmaceutically acceptable salt thereof, or a prodrug thereof.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: July 22, 2014
    Assignee: Mitsubishi Tanabe Pharma Corporation
    Inventors: Sumihiro Nomura, Eiji Kawanishi, Kiichiro Ueta
  • Publication number: 20130341934
    Abstract: There is provided a hybrid power generating system for hydraulic power, thermal power (nuclear power) turbines, geothermal, an engine room of a ship, wind power, solar power, a train (high-speed underground electric railway). The system of the present invention for existing hydraulic power, thermal power (nuclear power) turbines, geothermal, an engine room of a ship, wind power, solar power, a train (high-speed underground electric railway), a factory or the like is installed in a space for a power generator in sites of primary, secondary, tertiary substations.
    Type: Application
    Filed: August 20, 2010
    Publication date: December 26, 2013
    Inventor: Eiji Kawanishi
  • Patent number: 8513202
    Abstract: A novel crystal form of 1-(?-D-glucopyranosyl)-4-methyl-3-[5-(4-fluorophenyl)-2-thienylmethyl]benzene hemihydrate, and having favorable characteristics, is characterized by its x-ray powder diffraction pattern and/or by its infra-red spectrum.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: August 20, 2013
    Assignee: Mitsubishi Tanabe Pharma Corporation
    Inventors: Sumihiro Nomura, Eiji Kawanishi
  • Publication number: 20120309754
    Abstract: The present invention relates to a compound represented by formula [I]: wherein: R1 is hydrogen, halogen, lower alkyl or cyano; Ring A is an optionally substituted heterocyclic group; Ring B is an optionally substituted 3 to 6-membered monocyclic group; and Y is optionally substituted amino, optionally substituted cyclic amino, optionally substituted aliphatic 3 to 6-membered monocyclyloxy, optionally substituted lower alkyl or optionally substituted lower alkyl-O—, or a pharmaceutically acceptable salt thereof, and to their use as PDE10 inhibitor.
    Type: Application
    Filed: February 25, 2011
    Publication date: December 6, 2012
    Inventors: Eiji Kawanishi, Mitsuya Hongu, Yoshihito Tanaka
  • Publication number: 20120258913
    Abstract: A compound of the formula: wherein Ring A and Ring B are: (1) Ring A is an optionally substituted unsaturated monocyclic heterocyclic ring, and Ring B is an optionally substituted unsaturated monocyclic heterocyclic ring, an optionally substituted unsaturated fused heterobicyclic ring, or an optionally substituted benzene ring, (2) Ring A is an optionally substituted benzene ring, and Ring B is an optionally substituted unsaturated monocyclic heterocyclic ring or an optionally substituted unsaturated fused heterobicyclic ring, or (3) Ring A is an optionally substituted unsaturated fused heterobicyclic ring, and Ring B are independently an optionally substituted unsaturated monocyclic heterocyclic ring, an optionally substituted unsaturated fused heterobicyclic ring, or an optionally substituted benzene ring; X is a carbon atom or a nitrogen atom; Y is —(CH2)n— (n is 1 or 2); or a pharmaceutically acceptable salt thereof, or a prodrug thereof.
    Type: Application
    Filed: June 12, 2012
    Publication date: October 11, 2012
    Inventors: Sumihiro NOMURA, Eiji KAWANISHI, Kiichiro UETA
  • Patent number: 8222219
    Abstract: A compound of the formula: wherein Ring A and Ring B are: (1) Ring A is an optionally substituted unsaturated monocyclic heterocyclic ring, and Ring B is an optionally substituted unsaturated monocyclic heterocyclic ring, an optionally substituted unsaturated fused heterobicyclic ring, or an optionally substituted benzene ring, (2) Ring A is an optionally substituted benzene ring, and Ring B is an optionally substituted unsaturated monocyclic heterocyclic ring or an optionally substituted unsaturated fused heterobicyclic ring, or (3) Ring A is an optionally substituted unsaturated fused heterobicyclic ring, and Ring B are independently an optionally substituted unsaturated monocyclic heterocyclic ring, an optionally substituted unsaturated fused heterobicyclic ring, or an optionally substituted benzene ring; X is a carbon atom or a nitrogen atom; Y is —(CH2)n— (n is 1 or 2); or a pharmaceutically acceptable salt thereof, or a prodrug thereof.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: July 17, 2012
    Assignee: Mitsubishi Tanabe Pharma Corporation
    Inventors: Sumihiro Nomura, Eiji Kawanishi, Kiichiro Ueta
  • Patent number: 8202984
    Abstract: A compound of the formula: wherein Ring A and Ring B are: (1) Ring A is an optionally substituted unsaturated monocyclic heterocyclic ring, and Ring B is an optionally substituted unsaturated monocyclic heterocyclic ring, an optionally substituted unsaturated fused heterobicyclic ring, or an optionally substituted benzene ring, (2) Ring A is an optionally substituted benzene ring, and Ring B is an optionally substituted unsaturated monocyclic heterocyclic ring or an optionally substituted unsaturated fused heterobicyclic ring, or (3) Ring A is an optionally substituted unsaturated fused heterobicyclic ring, and Ring B are independently an optionally substituted unsaturated monocyclic heterocyclic ring, an optionally substituted unsaturated fused heterobicyclic ring, or an optionally substituted benzene ring; X is a carbon atom or a nitrogen atom; Y is —(CH2)n— (n is 1 or 2); or a pharmaceutically acceptable salt thereof, or a prodrug thereof.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: June 19, 2012
    Assignee: Mitsubishi Tanabe Pharma Corporation
    Inventors: Sumihiro Nomura, Eiji Kawanishi, Kiichiro Ueta
  • Publication number: 20120058941
    Abstract: A compound of the formula: wherein Ring A and Ring B are: (1) Ring A is an optionally substituted unsaturated monocyclic heterocyclic ring, and Ring B is an optionally substituted unsaturated monocyclic heterocyclic ring, an optionally substituted unsaturated fused heterobicyclic ring, or an optionally substituted benzene ring, (2) Ring A is an optionally substituted benzene ring, and Ring B is an optionally substituted unsaturated monocyclic heterocyclic ring or an optionally substituted unsaturated fused heterobicyclic ring, or (3) Ring A is an optionally substituted unsaturated fused heterobicyclic ring, and Ring B are independently an optionally substituted unsaturated monocyclic heterocyclic ring, an optionally substituted unsaturated fused heterobicyclic ring, or an optionally substituted benzene ring; X is a carbon atom or a nitrogen atom; Y is —(CH2)n— (n is 1 or 2); or a pharmaceutically acceptable salt thereof, or a prodrug thereof.
    Type: Application
    Filed: July 1, 2011
    Publication date: March 8, 2012
    Inventors: Sumihiro NOMURA, Eiji Kawanishi, Kiichiro Ueta
  • Publication number: 20110212905
    Abstract: A novel crystal form of 1-(?-D-glucopyranosyl)-4-methyl-3-[5-(4-fluorophenyl)-2-thienylmethyl]benzene hemihydrate, and having favorable characteristics, is characterized by its x-ray powder diffraction pattern and/or by its infra-red spectrum.
    Type: Application
    Filed: May 9, 2011
    Publication date: September 1, 2011
    Inventors: Sumihiro Nomura, Eiji Kawanishi
  • Publication number: 20110166135
    Abstract: The present invention provides aromatic nitrogen-containing 6-membered ring compounds having excellent PDE10 inhibitory activity.
    Type: Application
    Filed: September 9, 2009
    Publication date: July 7, 2011
    Inventors: Hiroshi Morimoto, Toshiaki Sakamoto, Toshiyuki Himiyama, Eiji Kawanishi, Takehiko Matsumura
  • Publication number: 20110160206
    Abstract: The present invention provides a tri-substituted pyrimidine compound having an excellent PDE10 inhibitory activity. The present invention relates to a tri-substituted pyrimidine compound represented by the following formula [I0] or a pharmaceutically acceptable salt thereof, a method for preparing the same, and use of said compound for PDE10 inhibitor, and a pharmaceutical composition comprising said compounds as an active ingredient: wherein: either one of X1 and X2 is N, and the other of X1 and X2 is CH; A is *-CH?CH—, *-C(Alk)=CH—, *-CH2—CH2— or *-O—CH2— (* is a bond with R1); Alk is a lower alkyl group; Ring B is an optionally substituted nitrogen-containing aliphatic heterocyclic group; R1 is an optionally substituted quinoxalinyl or an optionally substituted quinolyl; Y0 is mono- or di-substituted amino group, or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: September 3, 2009
    Publication date: June 30, 2011
    Inventors: Eiji Kawanishi, Takehiko Matsumura
  • Patent number: 7943788
    Abstract: A compound of the formula: wherein Ring A and Ring B are: (1) Ring A is an optionally substituted unsaturated monocyclic heterocyclic ring, and Ring B is an optionally substituted unsaturated monocyclic heterocyclic ring, an optionally substituted unsaturated fused heterobicyclic ring, or an optionally substituted benzene ring, (2) Ring A is an optionally substituted benzene ring, and Ring B is an optionally substituted unsaturated monocyclic heterocyclic ring or an optionally substituted unsaturated fused heterobicyclic ring, or (3) Ring A is an optionally substituted unsaturated fused heterobicyclic ring, and Ring B are independently an optionally substituted unsaturated monocyclic heterocyclic ring, an optionally substituted unsaturated fused heterobicyclic ring, or an optionally substituted benzene ring; X is a carbon atom or a nitrogen atom; Y is —(CH2)n— (n is 1 or 2); a pharmaceutically acceptable salt thereof, or a prodrug thereof.
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: May 17, 2011
    Assignee: Mitsubishi Tanabe Pharma Corporation
    Inventors: Sumihiro Nomura, Eiji Kawanishi, Kiichiro Ueta