Patents by Inventor Koichi Ishibashi

Koichi Ishibashi 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: 11793069
    Abstract: The present invention provides with an electron-accepting compound having a structure of the following formula (1):
    Type: Grant
    Filed: March 14, 2022
    Date of Patent: October 17, 2023
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Hideki Gorohmaru, Kazuki Okabe, Koichiro Iida, Tomokazu Umemoto, Yoshimasa Bando, Koichi Ishibashi, Yoshiko Kajiyama, Tomohiro Abe
  • Patent number: 11430961
    Abstract: The object of the present invention is to provide an iridium complex compound emitting red light, a composition comprising the iridium complex compound and a solvent, an organic electroluminescent element which is produced using the compound or the composition and has a long driving life and an excellent electronic durability, and a display device and lighting device using the organic electroluminescent element. The present invention relates to an iridium complex compound solvent having a 2-phenyl quinazoline framework and a specific substituent.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: August 30, 2022
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Koichi Ishibashi, Kazuhiro Nagayama, Hideji Komatsu, Koichiro Iida
  • Publication number: 20220209125
    Abstract: The present invention provides with an electron-accepting compound having a structure of the following formula (1):
    Type: Application
    Filed: March 14, 2022
    Publication date: June 30, 2022
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Hideki GOROHMARU, Kazuki OKABE, Koichiro IIDA, Tomokazu UMEMOTO, Yoshimasa BANDO, Koichi ISHIBASHI, Yoshiko KAJIYAMA, Tomohiro ABE
  • Patent number: 11316112
    Abstract: The present invention provides with an electron-accepting compound having a structure of the following formula (1):
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: April 26, 2022
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Hideki Gorohmaru, Kazuki Okabe, Koichiro Iida, Tomokazu Umemoto, Yoshimasa Bando, Koichi Ishibashi, Yoshiko Kajiyama, Tomohiro Abe
  • Patent number: 10600974
    Abstract: The object of the invention is to provide an iridium complex compound which emits red light with a high luminescent quantum yield, a process for producing the compound, an organic electroluminescent element which employs the iridium complex compound and has a high luminescent efficiency, a display device, and an illuminator.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: March 24, 2020
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Koichi Ishibashi, Kazuhiro Nagayama, Hideji Komatsu
  • Publication number: 20190019956
    Abstract: The present invention provides with an electron-accepting compound having a structure of the following formula (1):
    Type: Application
    Filed: September 20, 2018
    Publication date: January 17, 2019
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Hideki GOROHMARU, Kazuki Okabe, Koichiro Iida, Tomokazu Umemoto, Yoshimasa Bando, Koichi Ishibashi, Yoshiko Kajiyama, Tomohiro Abe
  • Publication number: 20180123054
    Abstract: The invention relates to a composition for organic electroluminescent element, which comprises: a solvent; and a compound group ? for organic electroluminescent element that is constituted of at least two kinds of compounds which each have a molecular weight of 3,000 or less and have a structure comprising a plurality of aromatic ring groups linked to each other, wherein the compound group ? comprises: a compound ?1; and another compound an satisfying a specific condition.
    Type: Application
    Filed: December 28, 2017
    Publication date: May 3, 2018
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Hideki GOROHMARU, Tomomi OKAMOTO, Wataru SHIMIZU, Kazuhiro NAGAYAMA, Takashi OYA, Koichi ISHIBASHI, Ichiro IMADA
  • Patent number: 9899606
    Abstract: The invention relates to a composition for organic electroluminescent element, which comprises: a solvent; and a compound group ? for organic electroluminescent element that is constituted of at least two kinds of compounds which each have a molecular weight of 3,000 or less and have a structure comprising a plurality of aromatic ring groups linked to each other, wherein the compound group ? comprises: a compound ?1; and another compound ?n satisfying a specific condition.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: February 20, 2018
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Hideki Gorohmaru, Tomomi Okamoto, Wataru Shimizu, Kazuhiro Nagayama, Takashi Oya, Koichi Ishibashi, Ichiro Imada
  • Patent number: 9799837
    Abstract: The present invention is to provide an iridium complex compound, which is soluble in an organic solvent, which can be stored for long periods without reprecipitation thereof and which secures a low driving voltage and a high luminescent efficiency of an organic electroluminescent element produced using the compound, to provide an organic electroluminescent element containing the compound and to provide a display and a lighting using the organic electroluminescent element. The present invention relates to the iridium complex compound having a specific chemical structure. Further, the invention also relates to the organic electroluminescent element produced using the compound, which requires a low operating voltage and has a long operating lifetime.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: October 24, 2017
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Kazuhiro Nagayama, Hideji Komatsu, Akira Migita, Hideki Gorohmaru, Koichiro Iida, Takashi Oya, Koichi Ishibashi
  • Patent number: 9628372
    Abstract: A data communication apparatus forms a mesh network together with at least one gateway includes a frame generating unit and a frame transferring unit. The frame generating unit generates a meter data frame to transmit to a gateway. The meter data frame is a frame including meter data. The frame transferring unit transfers the meter data frame received from another data communication apparatus. The meter data frame is addressed to the gateway. The frame generating unit transmits the meter data frame to which number of alternate routing that indicates number of allowable transmission attempts from a data communication apparatus adjacent to a destination gateway of the meter data frame to the gateway is added. The frame transferring unit changes the number of alternate routing added thereto to a value smaller by 1 than a value that has been set and transits the meter data frame to another data communication apparatus.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: April 18, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Yosuke Nishikata, Koichi Ishibashi, Yoshihiko Shirokura, Yasuaki Kamimura, Yukio Hayashi, Takahiro Koharagi, Kobun Nakajima, Taiji Kondo, Takao Ito, Shinichi Hirata
  • Patent number: 9564602
    Abstract: The invention provides an organic compound incorporating a specific structure into a pyridine skeleton or a 1,3,5-triazine skeleton and adapting the molecular weight to a specific range, a composition comprising the organic compound and a solvent, organic electroluminescent element comprising a layer that is formed by using the composition, and the uses thereof.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: February 7, 2017
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Koichi Ishibashi, Hideki Gorohmaru, Wataru Shimizu, Tomomi Okamoto
  • Patent number: 9521075
    Abstract: A communication device is included in an ad hoc network in a reactive routing scheme. The communication device includes a receiving unit, a selecting unit, and a transfer control unit. The receiving unit receives a route request frame including overall quality information on routes through which the route request frame has passed. The selecting unit selects a route request frame to be transferred to another communication device based on the quality information, from the route request frames received by the receiving unit through a plurality of routes. The transfer control unit transfers the route request frame selected by the selecting unit to the another communication device, and discards the route request frame when a quality value indicated by the quality information of the route request frame is smaller than a predetermined reference value.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: December 13, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Taiji Kondo, Takao Ito, Satoshi Ikeda, Hiroaki Kawasumi, Yukio Hayashi, Katsumi Kobayashi, Satoshi Kurosawa, Koichi Ishibashi, Yoshihiko Shirokura
  • Patent number: 9473733
    Abstract: A wireless communication system, comprising: an imaging apparatus; a storage medium attached to the imaging apparatus; and a terminal device, wherein the imaging apparatus comprises: a controller to control operation of the imaging apparatus and to execute transmission/reception of data, wherein the storage medium comprises: a first wireless communication unit; and a control unit to execute transmission/reception of data, wherein the terminal device comprises: a command generating unit to generate a command for controlling the operation of the imaging apparatus; and a second wireless communication unit, wherein: the controller executes a checking process in a predetermined cycle; and when the controller determines that the storage medium has received the command, the controller controls the operation of the imaging apparatus in accordance with the command and transmits an instruction to change operation of the control unit to the storage medium in accordance with the operation of the imaging apparatus.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: October 18, 2016
    Assignee: RICOH IMAGING COMPANY, LTD.
    Inventors: Naoki Tsunoda, Koichi Ishibashi
  • Publication number: 20160293866
    Abstract: The object of the invention is to provide an iridium complex compound which emits red light with a high luminescent quantum yield, a process for producing the compound, an organic electroluminescent element which employs the iridium complex compound and has a high luminescent efficiency, a display device, and an illuminator.
    Type: Application
    Filed: June 7, 2016
    Publication date: October 6, 2016
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Koichi ISHIBASHI, Kazuhiro NAGAYAMA, Hideji KOMATSU
  • Patent number: 9398614
    Abstract: A wireless communication device in a data collection system starts measuring a time when the wireless communication device receives a wireless signal from a data collection device. The wireless communication device changes the wireless channel, transmits a detection signal for detecting the data collection device, and starts measuring a time after transmitting the detection signal when the wireless communication device is unable to receive a next wireless signal from the data collection device even after passage of a predetermined time since the wireless communication device has previously received the wireless signal. The wireless communication device changes the wireless channel to be used, depending on whether the wireless communication device has received a response signal from the data collection device in response to the detection signal within a predetermined time.
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: July 19, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hitoshi Kubota, Satoshi Kurosawa, Koichi Ishibashi
  • Publication number: 20160043325
    Abstract: The invention relates to a composition for organic electroluminescent element, which comprises: a solvent; and a compound group ? for organic electroluminescent element that is constituted of at least two kinds of compounds which each have a molecular weight of 3,000 or less and have a structure comprising a plurality of aromatic ring groups linked to each other, wherein the compound group ? comprises: a compound ?1; and another compound ?n satisfying a specific condition.
    Type: Application
    Filed: July 11, 2013
    Publication date: February 11, 2016
    Inventors: Hideki GOROHMARU, Tomomi OKAMOTO, Wataru SHIMIZU, Kazuhiro NAGAYAMA, Takashi OYA, Koichi ISHIBASHI, lchiro IMADA
  • Publication number: 20150155502
    Abstract: The object of the present invention is to provide an iridium complex compound emitting red light, a composition comprising the iridium complex compound and a solvent, an organic electroluminescent element which is produced using the compound or the composition and has a long driving life and an excellent electronic durability, and a display device and lighting device using the organic electroluminescent element. The present invention relates to an iridium complex compound solvent having a 2-phenyl quinazoline framework and a specific substituent.
    Type: Application
    Filed: February 9, 2015
    Publication date: June 4, 2015
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Koichi ISHIBASHI, Kazuhiro NAGAYAMA, Hideji KOMATSU, Koichiro IIDA
  • Publication number: 20150116522
    Abstract: A wireless communication system, comprising: an imaging apparatus; a storage medium attached to the imaging apparatus; and a terminal device, wherein the imaging apparatus comprises: a controller to control operation of the imaging apparatus and to execute transmission/reception of data, wherein the storage medium comprises: a first wireless communication unit; and a control unit to execute transmission/reception of data, wherein the terminal device comprises: a command generating unit to generate a command for controlling the operation of the imaging apparatus; and a second wireless communication unit, wherein: the controller executes a checking process in a predetermined cycle; and when the controller determines that the storage medium has received the command, the controller controls the operation of the imaging apparatus in accordance with the command and transmits an instruction to change operation of the control unit to the storage medium in accordance with the operation of the imaging apparatus.
    Type: Application
    Filed: October 29, 2014
    Publication date: April 30, 2015
    Applicant: RICOH IMAGING COMPANY, LTD.
    Inventors: Naoki TSUNODA, Koichi ISHIBASHI
  • Patent number: 8994850
    Abstract: A photographing information management method, which includes: judging whether there is equality between photographing position information added to an image file stored in an external storage medium which is detachably attachable to an imaging apparatus and photographing position information stored in an internal memory of the imaging apparatus; and when it is judged that the two pieces of photographing position information have the equality, displaying an image and the photographing position information of the image file on a display screen of the imaging apparatus.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: March 31, 2015
    Assignee: Pentax Ricoh Imaging Company, Ltd.
    Inventors: Teppei Okamoto, Koichi Ishibashi, Naoki Koshikawa
  • Publication number: 20150076479
    Abstract: The invention provides an organic compound incorporating a specific structure into a pyridine skeleton or a 1,3,5-triazine skeleton and adapting the molecular weight to a specific range, a composition comprising the organic compound and a solvent, organic electroluminescent element comprising a layer that is formed by using the composition, and the uses thereof.
    Type: Application
    Filed: November 19, 2014
    Publication date: March 19, 2015
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Koichi Ishibashi, Hideki Gorohmaru, Wataru Shimizu, Tomomi Okamoto