Patents by Inventor Akira Ohshima

Akira Ohshima 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: 20230369545
    Abstract: A light-emitting element producing method includes: a step of forming a first-charge transport layer on a first electrode; a step of applying a first photosensitive resin composition, containing first quantum dots, to the first-charge transport layer, and forming a first-quantum-dot containing layer; a step of applying a second photosensitive resin composition, containing second quantum dots, to the first-quantum-dot containing layer, and forming a second-quantum-dot containing layer; a step of forming a second-charge transport layer on the second-quantum-dot containing layer; and a step of forming a second electrode on the second-charge transport layer.
    Type: Application
    Filed: October 7, 2020
    Publication date: November 16, 2023
    Inventors: Akira OHSHIMA, JUN SAKUMA, Sentaro KIDA, MAKOTO KITAGAWA
  • Publication number: 20230352517
    Abstract: A display device includes a substrate, and a light-emitting element provided on the substrate and including a light-emitting portion, a first reflective layer overlapping with the light-emitting portion and reflecting external light, and a light-exiting portion adjacent to the light-emitting portion. The light-emitting portion includes a first electrode, a first light-emitting layer, and a second electrode that are provided in this order from the substrate side to the first reflective layer side, and the light-exiting portion includes a first opening that is an opening of the first reflective layer and a second reflective layer reflecting light from the light-emitting portion to the first opening.
    Type: Application
    Filed: September 4, 2020
    Publication date: November 2, 2023
    Inventors: Akira OHSHIMA, YASUSHI ASAOKA
  • Publication number: 20230105196
    Abstract: A display device includes a substrate and a pixel provided on the substrate. The pixel includes a light-emitting portion including a plurality of light-emitting elements and configured to generate light, and a light-exiting portion adjacent to the light-emitting portion. The light-exiting portion includes a first light-reflecting portion provided on an incline on the substrate and configured to receive and reflect the light from the light-emitting portion, and an opening configured to emit the light reflected by the first light-reflecting portion to the outside. At least some of the plurality of light-emitting elements are formed by being layered.
    Type: Application
    Filed: March 2, 2020
    Publication date: April 6, 2023
    Inventors: Akira OHSHIMA, YASUSHI ASAOKA, YOSHIHIRO UETA, TAZUKO KITAZAWA
  • Publication number: 20230091271
    Abstract: A display device includes a substrate and a light-emitting element provided on the substrate. The light-emitting element includes a light-emitting portion and a first light-exiting portion. The light-emitting portion includes, in order from the substrate side, a first electrode, a light-emitting layer, a second electrode, and a light absorption layer. The first light-exiting portion includes a first light-reflecting layer provided at an incline on the substrate, and a first opening provided in the light absorption layer.
    Type: Application
    Filed: March 2, 2020
    Publication date: March 23, 2023
    Inventors: Akira OHSHIMA, SHIGERU AOMORI, JUN SAKUMA, YASUSHI ASAOKA
  • Patent number: 11111381
    Abstract: A polycarbonate resin composition for an optical component, the composition comprising 0.1 to 4 parts by mass of a polyalkylene glycol (B) and 0.005 to 0.5 parts by mass of a phosphorus-containing stabilizer (C) relative to 100 parts by mass of a polycarbonate resin (A), wherein the polyalkylene glycol (B) contains 40 to 80 mol % of a tetramethylene glycol unit (b1), 5 to 45 mol % of a (2-methyl)ethylene glycol unit (b2), and 5 to 50 mol % of an ethylene glycol unit (b3), and wherein at least two units selected from the tetramethylene glycol unit (b1), the (2-methyl)ethylene glycol unit (b2), and the ethylene glycol unit (b3) are contained as a copolymer component obtained by copolymerizing them.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: September 7, 2021
    Assignee: Mitsubishi Engineering-Plastics Corporation
    Inventors: Keisuke Tomita, Akira Ohshima
  • Publication number: 20200190320
    Abstract: A polycarbonate resin composition for an optical component, the composition comprising 0.1 to 4 parts by mass of a polyalkylene glycol (B) and 0.005 to 0.5 parts by mass of a phosphorus-containing stabilizer (C) relative to 100 parts by mass of a polycarbonate resin (A), wherein the polyalkylene glycol (B) contains 40 to 80 mol % of a tetramethylene glycol unit (b1), 5 to 45 mol % of a (2-methyl)ethylene glycol unit (b2), and 5 to 50 mol % of an ethylene glycol unit (b3), and wherein at least two units selected from the tetramethylene glycol unit (b1), the (2-methyl)ethylene glycol unit (b2), and the ethylene glycol unit (b3) are contained as a copolymer component obtained by copolymerizing them.
    Type: Application
    Filed: March 26, 2018
    Publication date: June 18, 2020
    Applicant: Mitsubishi Engineering-Plastics Corporation
    Inventors: Keisuke TOMITA, Akira OHSHIMA
  • Patent number: 9414182
    Abstract: A mobile station is provided to which multimedia broadcast/multicast service can be applied also during carrier aggregation. A mobile station communicates with a base station by carrier aggregation using a plurality of component carriers having different frequency bands. The mobile station receives contents in MBMS from the base station using at least two component carriers of a plurality of component carriers. The mobile station causes a display to display the received contents.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: August 9, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Akira Ohshima, Katsutoshi Ishikura, Toshiaki Kameno, Yoshio Konno, Yuichi Nobusawa
  • Patent number: 9326248
    Abstract: There are provided a terminal device capable of reducing power consumption when a plurality of applications perform data communication, a communication method for the terminal device, a program executed by the terminal device, a storage medium having the program stored thereon, and a radio communication system including the terminal device. The terminal device includes: application running means for running a plurality of applications adapted to perform data communication; communication means for performing a procedure necessary for activating data communication to make a state transition to a communicable state, and performing data communication; and management means for controlling execution of subsequent data communication before a transition from the communicable state to another state.
    Type: Grant
    Filed: March 21, 2013
    Date of Patent: April 26, 2016
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yuichi Nobusawa, Shiro Sugahara, Akira Ohshima
  • Patent number: 9215635
    Abstract: During a period of parallel-like radio communication with two or more first base stations, the first base station designates a second base station correlated with one of the two or more first base stations, and temporarily suspends the radio communication in accordance with a first communications standard to issue, to a mobile station, a request of measurement for the designated second base station. The first base station receives a result of the measurement for the designated second base station. The first base station notifies the mobile station of a handover from the first communications standard to a second communications standard, and also notifies the mobile station of a request for starting a coordination mode in which the two or more second base stations including the designated second base station establish communication with the mobile station in coordination with each other.
    Type: Grant
    Filed: May 30, 2011
    Date of Patent: December 15, 2015
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Mitsuru Sakamoto, Akira Ohshima, Tadashi Shimonabe, Yuhsuke Takagi, Takashi Naito
  • Publication number: 20150043550
    Abstract: A radio communication system includes transmission/reception devices which perform communication by dynamically switching a first transmission mode and a second transmission mode having a lower quality than the first transmission mode, wherein the transmission/reception devices have a transmission mode decision means which fixes a transmission mode upon communication to the first transmission mode for a given period of time.
    Type: Application
    Filed: October 24, 2014
    Publication date: February 12, 2015
    Inventors: Shigeto Suzuki, Keiji Hikoso, Mitsuru Sakamoto, Yuhsuke Takagi, Tadashi Shimonabe, Akira Ohshima
  • Publication number: 20150024806
    Abstract: There are provided a terminal device capable of reducing power consumption when a plurality of applications perform data communication, a communication method for the terminal device, a program executed by the terminal device, a storage medium having the program stored thereon, and a radio communication system including the terminal device. The terminal device includes: application running means for running a plurality of applications adapted to perform data communication; communication means for performing a procedure necessary for activating data communication to make a state transition to a communicable state, and performing data communication; and management means for controlling execution of subsequent data communication before a transition from the communicable state to another state.
    Type: Application
    Filed: March 21, 2013
    Publication date: January 22, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yuichi Nobusawa, Shiro Sugahara, Akira Ohshima
  • Patent number: 8892161
    Abstract: A radio communication system includes transmission/reception devices which perform communication by dynamically switching a first transmission mode and a second transmission mode having a lower quality than the first transmission mode, wherein the transmission/reception devices have a transmission mode decision means which fixes a transmission mode upon communication to the first transmission mode for a given period of time.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: November 18, 2014
    Assignee: Huawei Technologies Co., Inc.
    Inventors: Shigeto Suzuki, Keiji Hikoso, Mitsuru Sakamoto, Yuhsuke Takagi, Tadashi Shimonabe, Akira Ohshima
  • Patent number: 8768362
    Abstract: A communication system includes: a determination unit, provided in any one of a first base station, a second base station, and a mobile station, which determines a transmission timing change amount on the basis of reception timing of a signal transmitted between the first or second base station and the mobile station. The mobile station includes a handover execution unit which performs a handover from the first base station to the second base station on the basis of the transmission timing change amount calculated by the determination unit.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: July 1, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tadashi Shimonabe, Akira Ohshima, Mitsuru Sakamoto, Yuhsuke Takagi
  • Publication number: 20140146737
    Abstract: A mobile station is provided to which multimedia broadcast/multicast service can be applied also during carrier aggregation. A mobile station communicates with a base station by carrier aggregation using a plurality of component carriers having different frequency bands. The mobile station receives contents in MBMS from the base station using at least two component carriers of a plurality of component carriers. The mobile station causes a display to display the received contents.
    Type: Application
    Filed: September 14, 2012
    Publication date: May 29, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Akira Ohshima, Katsutoshi Ishikura, Toshiaki Kameno, Yoshio Konno, Yuichi Nobusawa
  • Patent number: 8724551
    Abstract: It is possible to complete a re-connection in a short time and prevent instantaneous interruption of communication by including a plurality of base station apparatuses and a mobile station apparatus; the mobile station apparatus includes: a delay difference detecting unit that detects a difference in reception timing between a signal from the base station apparatus with which the mobile station apparatus currently communicates and a signal from the base station apparatus that is a re-connection destination candidate; a transmission timing calculating unit that calculates, based on the difference in reception timing, a transmission timing to the base station apparatus that is the re-connection destination candidate; and a re-connection processing unit that, having detected a disconnection of the communication with the base station apparatus with which the mobile station apparatus currently communicates, uses the transmission timing to start a communication with the base station apparatus that is the re-connect
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: May 13, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Akira Ohshima, Tadashi Shimonabe, Mitsuru Sakamoto, Yuhsuke Takagi
  • Patent number: 8437787
    Abstract: A mobile communication device includes antennas, transmitting units, and receiving units. A baseband processing unit of the mobile communication device transmits data signals to a base station device through a receiving unit and an antenna that are selected based on an instruction received from the base station device. The baseband processing unit transmits reference signals to the base station device through the transmitting units and the antennas while preventing transmission frequencies of the reference signals from overlapping one another.
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: May 7, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tadashi Shimonabe, Akira Ohshima, Mitsuru Sakamoto, Yuhsuke Takagi
  • Publication number: 20130017833
    Abstract: During a period of parallel-like radio communication with two or more first base stations, the first base station designates a second base station correlated with one of the two or more first base stations, and temporarily suspends the radio communication in accordance with a first communications standard to issue, to a mobile station, a request of measurement for the designated second base station. The first base station receives a result of the measurement for the designated second base station. The first base station notifies the mobile station of a handover from the first communications standard to a second communications standard, and also notifies the mobile station of a request for starting a coordination mode in which the two or more second base stations including the designated second base station establish communication with the mobile station in coordination with each other.
    Type: Application
    Filed: May 30, 2011
    Publication date: January 17, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Mitsuru Sakamoto, Akira Ohshima, Tadashi Shimonabe, Yuhsuke Takagi, Takashi Naito
  • Publication number: 20120218946
    Abstract: It is possible to complete a re-connection in a short time and prevent instantaneous interruption of communication by including a plurality of base station apparatuses and a mobile station apparatus; the mobile station apparatus includes: a delay difference detecting unit that detects a difference in reception timing between a signal from the base station apparatus with which the mobile station apparatus currently communicates and a signal from the base station apparatus that is a re-connection destination candidate; a transmission timing calculating unit that calculates, based on the difference in reception timing, a transmission timing to the base station apparatus that is the re-connection destination candidate; and a re-connection processing unit that, having detected a disconnection of the communication with the base station apparatus with which the mobile station apparatus currently communicates, uses the transmission timing to start a communication with the base station apparatus that is the re-connect
    Type: Application
    Filed: November 2, 2010
    Publication date: August 30, 2012
    Inventors: Akira Ohshima, Tadashi Shimonabe, Mitsuru Sakamoto, Yuhsuke Takagi
  • Publication number: 20120100885
    Abstract: A communication system includes: a determination unit, provided in any one of a first base station, a second base station, and a mobile station, which determines a transmission timing change amount on the basis of reception timing of a signal transmitted between the first or second base station and the mobile station. The mobile station includes a handover execution unit which performs a handover from the first base station to the second base station on the basis of the transmission timing change amount calculated by the determination unit.
    Type: Application
    Filed: May 28, 2010
    Publication date: April 26, 2012
    Inventors: Tadashi Shimonabe, Akira Ohshima, Mitsuru Sakamoto, Yuhsuke Takagi
  • Publication number: 20110081930
    Abstract: A mobile communication device includes antennas, transmitting units, and receiving units. A baseband processing unit of the mobile communication device transmits data signals to a base station device through a receiving unit and an antenna that are selected based on an instruction received from the base station device. The baseband processing unit transmits reference signals to the base station device through the transmitting units and the antennas while preventing transmission frequencies of the reference signals from overlapping one another.
    Type: Application
    Filed: May 22, 2009
    Publication date: April 7, 2011
    Inventors: Tadashi Shimonabe, Akira Ohshima, Mitsuru Sakamoto, Yuhsuke Takagi