Patents by Inventor Yusuke Nakajima

Yusuke Nakajima 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: 10361378
    Abstract: Provided is a practically useful organic EL element having high efficiency and high driving stability while being capable of being driven at a low voltage. The organic EL element has a light-emitting layer and any other organic layer between an anode and a cathode opposite to each other. The light-emitting layer contains at least two host materials and at least one light-emitting dopant. At least one of the host materials is a host material selected from compounds each having one or two indolocarbazole skeletons, and at least one of the other host materials is a host material selected from carbazole compounds each substituted with a dibenzofuran or a dibenzothiophene.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: July 23, 2019
    Assignees: NIPPON STEEL CHEMICAL & MATERIAL CO., LTD., PIONEER CORPORATION, TOHOKU PIONEER CORPORATION
    Inventors: Masashi Tada, Takahiro Kai, Katsuhide Noguchi, Yasuhiro Takahashi, Yuhki Terao, Taishi Tsuji, Yusuke Nakajima, Toshinao Yuki
  • Patent number: 10340460
    Abstract: Provided is a practically useful organic electroluminescent device (organic EL device) having high efficiency and high driving stability while being capable of being driven at a low voltage. The organic electroluminescent device includes a light-emitting layer between an anode and a cathode opposite to each other. The light-emitting layer contains two host materials and at least one light-emitting dopant. One of the two host materials is a host material selected from an indolocarbazole compound having one indolocarbazole ring and an indolocarbazole compound having two indolocarbazole rings, and the other thereof is a host material selected from carbazole compounds.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: July 2, 2019
    Assignees: NIPPON STEEL CHEMICAL & MATERIAL CO., LTD., PIONEER CORPORATION, TOHOKU PIONEER CORPORATION
    Inventors: Takayuki Fukumatsu, Katsuhide Noguchi, Masashi Tada, Mitsuru Sakai, Tohru Asari, Kazuto Shiraishi, Takahiro Kai, Yasuhiro Takahashi, Yuhki Terao, Taishi Tsuji, Yusuke Nakajima, Toshinao Yuki
  • Publication number: 20190181816
    Abstract: A power amplifier module includes a first current source that outputs a first current corresponding to a level control voltage for controlling a signal level of an amplified signal, a second current source that outputs a second current corresponding to the level control voltage, a first transistor in which an input signal and a first bias current are supplied to a base and an emitter is grounded, a second transistor in which an emitter is connected to a collector of the first transistor, the second current is supplied to a base, and a first amplified signal obtained by amplifying the input signal is output from a collector, and a third transistor in which the first current is supplied to a collector, a bias control current or voltage is supplied to a base, and the first bias current is supplied from an emitter to the base of the first transistor.
    Type: Application
    Filed: February 20, 2019
    Publication date: June 13, 2019
    Inventors: Shota ISHIHARA, Seiko ONO, Yusuke SHIMAMUNE, Fuminori MORISAWA, Shizuki NAKAJIMA, Yuri HONDA, Kazuhiro KOSHIO, Masato SATO
  • Patent number: 10053363
    Abstract: To allow hydrogen to be supplied to a dehydrogenation reaction unit for dehydrogenating an organic hydride by using a highly simple structure so that the activity of the dehydrogenation catalyst of the dehydrogenation reaction unit is prevented from being rapidly reduced.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: August 21, 2018
    Assignee: CHIYODA CORPORATION
    Inventors: Tomoyuki Mikuriya, Kenichi Imagawa, Hironori Kawai, Yusuke Nakajima, Takenori Kanda
  • Publication number: 20180093886
    Abstract: A method of manufacturing synthesis gas by catalytic partial oxidation can prevent formation of hot spots from taking place when driving mixture gas to pass through a catalyst-filled layer at high velocity. The method comprises converting mixture gas of source gas containing lower hydrocarbons and oxidative gas containing oxygen into synthesis gas containing hydrogen and carbon monoxide as main components thereof by causing mixture gas to flow through a fixed bed catalyst layer arranged in a reactor. The method of manufacturing synthesis gas by catalytic partial oxidation is conducted such that the mixture gas is made to flow to the catalyst layer under the condition that the Reynolds number does not exceed 20 at the inlet of the catalyst layer.
    Type: Application
    Filed: March 23, 2016
    Publication date: April 5, 2018
    Applicants: CHIYODA CORPORATION, Japan Oil, Gas and Metals National Corporation
    Inventors: Shigeru Kado, Kohei Urasaki, Kyoji Ishikawa, Hironori Kawai, Yusuke Nakajima
  • Patent number: 9919986
    Abstract: The energy is minimized that is required to lower the concentration of the high boiling point components (containing the poisoning substance for the dehydrogenation catalyst) contained in the hydrogenated aromatic compound produced by the hydrogenation of an aromatic compound. The hydrogenation system (2) for an aromatic compound comprises a hydrogenation reaction unit (11) for adding hydrogen to an aromatic compound by a hydrogenation reaction to produce a hydrogenated aromatic compound, a first separation unit (12) for separating a gas and a liquid component from a product of the hydrogenation reaction unit while maintaining a temperature of the product generally higher than a boiling point of the hydrogenated aromatic compound, and a second separation unit (13) for separating the hydrogenated aromatic compound from the gas component separated by the first separation unit.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: March 20, 2018
    Assignee: CHIYODA CORPORATION
    Inventors: Kenichi Imagawa, Hironori Kawai, Masato Shiraga, Yusuke Nakajima
  • Publication number: 20180075088
    Abstract: Updating a database is accelerated. A device management device manages a device having a database, and includes: an acquisition unit configured to acquire database state information from the device; and an updating unit configured to send update data for updating the database to the device, and cause the device to update the database based on the update data. The updating unit selectively executes, based on the database state information, a first updating process of sequentially sending the updated portions of the update data to the device to change the updated portions of the database; or a second updating process of sending all of the update data to the device to refresh the complete database.
    Type: Application
    Filed: September 11, 2017
    Publication date: March 15, 2018
    Inventors: Michiaki KANEDA, Takashi SERA, Yusuke NAKAJIMA, Shingo SAITO
  • Patent number: 9733273
    Abstract: The time required to test an electronic device mounted in semiconductor manufacturing equipment can be reduced. A first test panel mounted, on a first connector surface thereof, with plural first test-object connectors respectively including plural first terminals electrically coupled to an electronic device and a second test panel mounted, on a second connector surface thereof, with plural second test-object connectors respectively including plural spring probes are provided. The first connector surface of the first test panel and the second connector surface of the second test panel are positioned to face each other, the spring probes included in the second test-object connectors are electrically coupled to the first terminals included in the first test-object connectors, and a functional test concerning an electrical characteristic of the electronic device is performed.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: August 15, 2017
    Assignee: RENESAS SEMICONDUCTOR PACKAGE & TEST SOLUTIONS CO., LTD.
    Inventor: Yusuke Nakajima
  • Publication number: 20170166496
    Abstract: The energy is minimized that is required to lower the concentration of the high boiling point components (containing the poisoning substance for the dehydrogenation catalyst) contained in the hydrogenated aromatic compound produced by the hydrogenation of an aromatic compound. The hydrogenation system (2) for an aromatic compound comprises a hydrogenation reaction unit (11) for adding hydrogen to an aromatic compound by a hydrogenation reaction to produce a hydrogenated aromatic compound, a first separation unit (12) for separating a gas and a liquid component from a product of the hydrogenation reaction unit while maintaining a temperature of the product generally higher than a boiling point of the hydrogenated aromatic compound, and a second separation unit (13) for separating the hydrogenated aromatic compound from the gas component separated by the first separation unit.
    Type: Application
    Filed: January 29, 2015
    Publication date: June 15, 2017
    Inventors: Kenichi Imagawa, Hironori Kawai, Masato Shiraga, Yusuke Nakajima
  • Publication number: 20170015553
    Abstract: To allow hydrogen to be supplied to a dehydrogenation reaction unit for dehydrogenating an organic hydride by using a highly simple structure so that the activity of the dehydrogenation catalyst of the dehydrogenation reaction unit is prevented from being rapidly reduced.
    Type: Application
    Filed: March 6, 2015
    Publication date: January 19, 2017
    Inventors: Tomoyuki MIKURIYA, Kenichi IMAGAWA, Hironori KAWAI, Yusuke NAKAJIMA, Takenori KANDA
  • Publication number: 20160202293
    Abstract: The time required to test an electronic device mounted in semiconductor manufacturing equipment can be reduced. A first test panel mounted, on a first connector surface thereof, with plural first test-object connectors respectively including plural first terminals electrically coupled to an electronic device and a second test panel mounted, on a second connector surface thereof, with plural second test-object connectors respectively including plural spring probes are provided. The first connector surface of the first test panel and the second connector surface of the second test panel are positioned to face each other, the spring probes included in the second test-object connectors are electrically coupled to the first terminals included in the first test-object connectors, and a functional test concerning an electrical characteristic of the electronic device is performed.
    Type: Application
    Filed: December 22, 2015
    Publication date: July 14, 2016
    Inventor: Yusuke NAKAJIMA
  • Patent number: 9290498
    Abstract: Disclosed is an organic electroluminescent device (organic EL device) which is improved in luminous efficiency, fully secure of driving stability, and of a simple configuration. The organic EL device comprises organic layers comprising a hole-transporting layer and a light-emitting layer sandwiched between an anode and a cathode. The light-emitting layer contains a fluorescent light-emitting material and an electron- and/or exciton-blocking layer containing an indolocarbazole derivative represented by general formula (2) is disposed between the hole-transporting layer and the light-emitting layer so as to be adjacent to the light-emitting layer. In general formula (2), ring B is a heterocyclic ring fused to the adjacent rings and represented by formula (1c), Z is an n-valent aromatic hydrocarbon group or aromatic heterocyclic group, and n is 1 or 2.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: March 22, 2016
    Assignees: NIPPON STEEL & SUMIKIN CHEMICAL CO., LTD., PIONEER CORPORATION, TOHOKU PIONEER CORPORATION
    Inventors: Takahiro Kai, Toshihiro Yamamoto, Masaki Komori, Kazuaki Yoshimura, Taishi Tsuji, Yasuhiro Takahashi, Toshinao Yuki, Yusuke Nakajima
  • Publication number: 20150325796
    Abstract: Provided is a practically useful organic EL element having high efficiency and high driving stability while being capable of being driven at a low voltage. The organic EL element has a light-emitting layer and any other organic layer between an anode and a cathode opposite to each other. The light-emitting layer contains at least two host materials and at least one light-emitting dopant. At least one of the host materials is a host material selected from compounds each having one or two indolocarbazole skeletons, and at least one of the other host materials is a host material selected from carbazole compounds each substituted with a dibenzofuran or a dibenzothiophene.
    Type: Application
    Filed: November 21, 2013
    Publication date: November 12, 2015
    Inventors: Masashi TADA, Takahiro KAI, Katsuhide NOGUCHI, Yasuhiro TAKAHASHI, Yuhki TERAO, Taishi TSUJI, Yusuke NAKAJIMA, Toshinao YUKI
  • Publication number: 20150115240
    Abstract: Provided is a practically useful organic electroluminescent device (organic EL device) having high efficiency and high driving stability while being capable of being driven at a low voltage. The organic electroluminescent device includes a light-emitting layer between an anode and a cathode opposite to each other. The light-emitting layer contains two host materials and at least one light-emitting dopant. One of the two host materials is a host material selected from an indolocarbazole compound having one indolocarbazole ring and an indolocarbazole compound having two indolocarbazole rings, and the other thereof is a host material selected from carbazole compounds.
    Type: Application
    Filed: March 25, 2013
    Publication date: April 30, 2015
    Inventors: Takayuki Fukumatsu, Katsuhide Noguchi, Masashi Tada, Mitsuru Sakai, Tohru Asari, Kazuto Shiraishi, Takahiro Kai, Yasuhiro Takahashi, Yuhki Terao, Taishi Tsuji, Yusuke Nakajima, Toshinao Yuki
  • Patent number: 8840043
    Abstract: A rotary atomization coating device is provided with a rotary atomizing head including a paint storage and adapted to atomize paint supplied to the paint storage and to discharge the paint onto a work, and a paint supplying nozzle adapted to supply the paint to the paint storage. The rotary atomizing head includes a plurality of bell cups. Each of the bell cups includes, at a front face thereof, a paint discharging face adapted to thin the paint by a centrifugal force. The rotary atomizing head includes a plurality of paint supplying holes corresponding to the respective bell cups. The paint supplying holes are adapted to supply the paint from the paint storage to the respective paint discharging faces. A plurality of grooves extending along a radial direction of the rotary atomizing head are formed at circumferential portions of the respective paint discharging faces.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: September 23, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Daisuke Nakazono, Junichi Fukuno, Masayuki Yamaguchi, Yusuke Nakajima
  • Patent number: 8703303
    Abstract: Disclosed is an organic electroluminescent device (organic EL device) that is improved in the luminous efficiency, fully secured of the driving stability, and of a simple structure. The organic EL device comprises a light-emitting layer between an anode and a cathode piled one upon another on a substrate and the said light-emitting layer comprises (A) a phosphorescent dopant whose emission peak wavelength is longer than 600 nm and (B) a host material. The host material contains at least two kinds of compounds selected from two or more kinds of derivatives included in (b1) N-substituted indolocarbazole derivatives, (b2) derivatives of 8-hydroxyquinoline aluminum complex, and (b3) bisindolocarbazole derivatives.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: April 22, 2014
    Assignees: Nippon Steel & Sumikin Chemical Co., Ltd., Pioneer Corporation, Tohoku Pioneer Corporation
    Inventors: Toshihiro Yamamoto, Takahiro Kai, Masaki Komori, Taishi Tsuji, Yasuhiro Takahashi, Toshinao Yuki, Yusuke Nakajima, Tomoaki Hoshi, Jiro Asaka
  • Publication number: 20120205640
    Abstract: Disclosed is an organic electroluminescent device (organic EL device) which is improved in luminous efficiency, fully secure of driving stability, and of a simple configuration. The organic EL device comprises organic layers comprising a hole-transporting layer and a light-emitting layer sandwiched between an anode and a cathode. The light-emitting layer contains a fluorescent light-emitting material and an electron- and/or exciton-blocking layer containing an indolocarbazole derivative represented by general formula (2) is disposed between the hole-transporting layer and the light-emitting layer so as to be adjacent to the light-emitting layer. In general formula (2), ring B is a heterocyclic ring fused to the adjacent rings and represented by formula (1c), Z is an n-valent aromatic hydrocarbon group or aromatic heterocyclic group, and n is 1 or 2.
    Type: Application
    Filed: October 19, 2010
    Publication date: August 16, 2012
    Inventors: Takahiro Kai, Toshihiro Yamamoto, Masaki Komori, Kazuaki Yoshimura, Taishi Tsuji, Yasuhiro Takahashi, Toshinao Yuki, Yusuke Nakajima
  • Publication number: 20120193453
    Abstract: A rotary atomization coating device is provided with a rotary atomizing head including a paint storage and adapted to atomize paint supplied to the paint storage and to discharge the paint onto a work, and a paint supplying nozzle adapted to supply the paint to the paint storage. The rotary atomizing head includes a plurality of bell cups. Each of the bell cups includes, at a front face thereof, a paint discharging face adapted to thin the paint by a centrifugal force. The rotary atomizing head includes a plurality of paint supplying holes corresponding to the respective bell cups. The paint supplying holes are adapted to supply the paint from the paint storage to the respective paint discharging faces. A plurality of grooves extending along a radial direction of the rotary atomizing head are formed at circumferential portions of the respective paint discharging faces.
    Type: Application
    Filed: January 5, 2012
    Publication date: August 2, 2012
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Daisuke Nakazono, Junichi Fukuno, Masayuki Yamaguchi, Yusuke Nakajima
  • Patent number: D788204
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: May 30, 2017
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Shigetaka Kimura, Shinji Shibuya, Kazumasa Ueoka, Yusuke Nakajima
  • Patent number: D789437
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: June 13, 2017
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Shigetaka Kimura, Shinji Shibuya, Kazumasa Ueoka, Yusuke Nakajima