Patents by Inventor Tetsuya Nakagawa

Tetsuya Nakagawa 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: 9153788
    Abstract: An organic light-emitting device containing a compound represented by the following general formula in a light light-emitting layer has a high light-emission efficiency. The ring containing Y1, Y2 and Y3 represent a triazine ring or a pyrimidine ring; Z1, Z2 and R1 to R8 represent a hydrogen atom or a substituent; and at least one of R1 to R8 represents a diarylamino group or a carbazolyl group. The compound represented by the general formula (1) contains at least two carbazole structures in the molecule thereof.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: October 6, 2015
    Assignee: KYUSHU UNIVERSITY NATIONAL UNIVERSITY CORPORATION
    Inventors: Chihaya Adachi, Takuma Yasuda, Saeyoun Lee, Hiroko Nomura, Tetsuya Nakagawa
  • Patent number: 8975385
    Abstract: The rare-earth complex of the present invention has high luminous efficiency, since it has a structure represented by the following general formula (I):
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: March 10, 2015
    Assignee: National University Corporation Nara Institute of Science and Technology
    Inventors: Yasuchika Hasegawa, Tsuyoshi Kawai, Takuya Nakashima, Tetsuya Nakagawa, Kohei Miyata
  • Publication number: 20150048338
    Abstract: The compound represented by the following general formula is useful as a light-emitting material for an organic light-emitting device. Z1, Z2 and Z3 in the following general formula each independently represent a substituent.
    Type: Application
    Filed: March 7, 2013
    Publication date: February 19, 2015
    Inventors: Chihaya Adachi, Tetsuya Nakagawa, Jie Li
  • Publication number: 20140336379
    Abstract: An organic light-emitting device containing a compound represented by the following general formula in a light light-emitting layer has a high light-emission efficiency. The ring containing Y1, Y2 and Y3 represent a triazine ring or a pyrimidine ring; Z1, Z2 and R1 to R8 represent a hydrogen atom or a substituent; and at least one of R1 to R8 represents a diarylamino group or a carbazolyl group. The compound represented by the general formula (1) contains at least two carbazole structures in the molecule thereof.
    Type: Application
    Filed: November 30, 2012
    Publication date: November 13, 2014
    Inventors: Chihaya Adachi, Takuma Yasuda, Saeyoun Lee, Hiroko Nomura, Tetsuya Nakagawa
  • Publication number: 20140329136
    Abstract: A battery wiring module, which is attached to a battery group formed by juxtaposing a plurality of batteries each having positive and negative electrode terminals, includes; a plurality of bus bars connected to the electrode terminals; and a resin protector made of an insulating resin and having a holding portion holding the bus bars. The holding portion of the resin protector is provided with a bus bar insertion portion adapted to insert the bus bars in a direction in which the plurality of batteries is juxtaposed.
    Type: Application
    Filed: November 1, 2012
    Publication date: November 6, 2014
    Inventors: Yuko Kinoshita, Hiroomi Hiramitsu, Katsunori Hamana, Tomofumi Tsuji, Mitsuhiro Akasaka, Tetsuya Nakagawa, Yoshinao Kobayashi, Masaru Shitamichi, Daiki Hirano
  • Publication number: 20140287622
    Abstract: A battery wiring module to be attached to a cell group includes a plurality of cells each having positive and negative electrode terminals. The battery wiring module includes a busbar connecting the electrode terminals, a voltage sensing terminal overlapped with the busbar and connected to one of the electrode terminals, and an insulation protector including a housing and a wire guiding groove. The voltage sensing terminal is configured to sense a state of the cell group. The busbar and the voltage sensing terminal are housed in the housing. The wire guiding groove is configured to guide a sensing wire that extends from the voltage sensing terminal to extend out of the housing. In the housing, a bus bar lock tab and a sensing terminal lock tab are formed on one elastic locking piece.
    Type: Application
    Filed: October 19, 2012
    Publication date: September 25, 2014
    Inventors: Yuko Kinoshita, Katsunori Hamana, Mitsuhiro Akasaka, Tetsuya Nakagawa, Yoshinao Kobayashi, Masaru Shitamichi, Daiki Hirano
  • Publication number: 20140138670
    Abstract: An organic electroluminescence element in which a compound represented by the general formula below is used in a light-emitting layer exhibits a high emission efficiency and is inexpensive to provide. At least one of R1 to R8 and R17 represent an electron-donating group and the others represent a hydrogen atom; at least one of R9 to R16 represent an electron-withdrawing group that does not have an unshared electron pair at the ?-position thereof and the others represent a hydrogen atom; Z represents a single bond or >C?Y; Y represents O, S, C(CN)2 or C(COOH)2; provided that when Z is a single bond, then at least one of R9 to R16 is an electron-withdrawing group that does not have an unshared electron pair at the ?-position thereof.
    Type: Application
    Filed: July 13, 2012
    Publication date: May 22, 2014
    Applicant: KYUSHU UNIVERSITY NATIONAL UNIVERSITY CORPORATION
    Inventors: Tetsuya Nakagawa, Chihaya Adachi, Hiroko Nomura, Gabor Mehes, Keiro Nasu
  • Publication number: 20140138669
    Abstract: A delayed fluorescence material comprising a compound represented by the general formula below. At least one of R1 to R8 represent an electron-donating group and the others represent a hydrogen atom; at least one of R9 to R16 represent an electron-withdrawing group and the others represent a hydrogen atom.
    Type: Application
    Filed: July 13, 2012
    Publication date: May 22, 2014
    Applicant: KYUSHU UNIVERSITY NATIONAL UNIVERSITY CORPORATION
    Inventors: Tetsuya Nakagawa, Chihaya Adachi
  • Publication number: 20140113494
    Abstract: A battery wiring module is configured to be attached to a battery group including a plurality of batteries each having electrode terminals including a positive electrode terminal and a negative electrode terminal and configured to connect the electrode terminals. The battery wiring module includes a plurality of connection units connected to each other in a battery arrangement direction in which the batteries are arranged. Each of the connection units includes a bus bar and a bus bar housing. The bus bar is configured to connect one of the electrode terminals of one of the batteries and one of the electrode terminals of another one of the batteries. The bus bar housing houses the bus bar. The bus bar has a pair of terminal through holes configured to receive the electrode terminals and each of the terminal through holes is formed in a shape elongated in the battery arrangement direction.
    Type: Application
    Filed: June 15, 2012
    Publication date: April 24, 2014
    Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Yuko Kinoshita, Hiroomi Hiramitsu, Hiroki Hirai, Katsunori Hamana, Tomofumi Tsuji, Mitsuhiro Akasaka, Tetsuya Nakagawa, Yoshinao Kobayashi, Masaru Shitamichi, Daiki Hirano
  • Patent number: 8674116
    Abstract: There is provided a metal complex that is large in degree of a change in emission intensity, the change being caused by a change in molecular structure of a ligand through a photochromic reaction. The metal complex is arranged such that a diarylethene-based photochromic molecule coordinates to a metal ion via two groups directly bonded to respective reaction site carbons and that the groups are each independently a group selected from Formula Group (1) below.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: March 18, 2014
    Assignees: National University Corporation, Nara Institute of Science and Technology
    Inventors: Tsuyoshi Kawai, Yasuchika Hasegawa, Tetsuya Nakagawa
  • Patent number: 8625761
    Abstract: A user authentication method is applied to a user authentication apparatus for authentication using a unique ID that is information unique to a communication apparatus. The method includes acquiring a user ID as information identifying a user, and detecting a unique ID corresponding to the user ID from a user ID list. The method also includes making a call with a predetermined number of rings to a communication apparatus having the unique ID. Additionally, the method includes receiving a callback made by a communication apparatus after a predetermined number of rings of the call in response to the call. In addition, the method includes determining whether a unique ID of the communication apparatus having made the callback matches the unique ID of the communication apparatus to which the call has been made, and determining, if there is a match, that a user having the user ID is an authorized user.
    Type: Grant
    Filed: July 6, 2007
    Date of Patent: January 7, 2014
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Haruhiko Fujii, Tetsuya Nakagawa
  • Publication number: 20130309553
    Abstract: Each of connection units integrally includes a cover via a hinge, and the cover covers an accommodation portion in which a connecting member is arranged. The connection unit includes a unit stopper and a unit stopper receiver that is fitted to the unit stopper that is formed on an adjacent connection unit. The cover includes a cover stopper and a cover stopper receiver that is fitted to the cover stopper formed on the cover of the adjacent connection unit. The connection units are connected to each other by fitting of the unit stoppers and the unit stopper receivers and fitting of the cover stoppers and the cover stopper receivers.
    Type: Application
    Filed: January 27, 2012
    Publication date: November 21, 2013
    Applicants: AUTONETWORKS TECHNOLOGIES, LTD, SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Yuko Kinoshita, Hiroomi Hiramitsu, Kensaku Takata, Hiroki Hirai, Katsunori Hamana, Tomofumi Tsuji, Mitsuhiro Akasaka, Tetsuya Nakagawa, Yoshinao Kobayashi, Masaru Shitamichi, Daiki Hirano
  • Publication number: 20120140439
    Abstract: The rare-earth complex of the present invention has high luminous efficiency, since it has a structure represented by the following general formula (I):
    Type: Application
    Filed: July 15, 2010
    Publication date: June 7, 2012
    Applicant: National University Corporation Nara Institute of Science and Technology
    Inventors: Yasuchika Hasegawa, Tsuyoshi Kawai, Takuya Nakashima, Tetsuya Nakagawa, Kohei Miyata
  • Patent number: D660211
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: May 22, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hirokazu Ikuma, Tatsuya Hotta, Tetsuya Nakagawa
  • Patent number: D673087
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: December 25, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tatsuya Hotta, Tetsuya Nakagawa
  • Patent number: D674328
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: January 15, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hirokazu Ikuma, Tatsuya Hotta, Tetsuya Nakagawa
  • Patent number: D676367
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: February 19, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masayuki Yamada, Takahiro Minami, Tetsuya Nakagawa
  • Patent number: D681528
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: May 7, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masayuki Yamada, Takahiro Minami, Tetsuya Nakagawa, Noriyuki Nakamura
  • Patent number: D708644
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: July 8, 2014
    Assignee: Yanmar Co., Ltd.
    Inventors: Shinji Nishimura, Tetsuya Nakagawa, Koutarou Mori
  • Patent number: D744375
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: December 1, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hirokazu Ikuma, Ian Richard Cartabiano, Tatsuya Hotta, Tetsuya Nakagawa, Jun Takahashi, Noriyuki Nakamura