Patents by Inventor Kenji Kawai

Kenji Kawai 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: 10397133
    Abstract: An upstream allocation circuit (14) and a downstream allocation circuit (15) are provided in an OLT (1). For example, a superimposed frame obtained by bundling upstream frames (upstream control frames+upstream data frames) from all ONUS is input to the upstream allocation circuit (14) via a frame reproduction circuit (12-1). The superimposed frame may be generated at the stage of optical signals or generated after converting optical signals into electrical signals. The upstream allocation circuit (14) allocates each of the upstream control frames bundled into the superimposed frame to a predetermined PON control circuit (13) based on information (PON port number or LLID) added to the frames. The downstream allocation circuit (15) allocates, to a preset frame reproduction circuit (12), each downstream control frames output from the PON control circuits (13).
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: August 27, 2019
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Saki Hatta, Tomoaki Kawamura, Kenji Kawai, Nobuyuki Tanaka, Satoshi Shigematsu, Namiko Ikeda, Shoko Ohteru, Junichi Kato
  • Patent number: 10383902
    Abstract: Provided is an agent for promoting growth of nonpathogenic oral indigenous bacteria, or an agent for improving oral bacterial flora, which comprises the dry powder of one or more mushrooms selected from the group consisting of Hericium erinaceus, Grifola frondosa, Lyophyllum shimeji, Hypsizygus marmoreus, Pleurotus ostreatus, Agaricus blazei, and Lentinula edodes, or an extract thereof, and which has an excellent growth-promoting effect on nonpathogenic oral indigenous bacteria and an excellent improving effect on oral bacterial flora, and which is effective in maintaining balanced indigenous bacterial flora. Also provided is a composition for oral use containing same.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: August 20, 2019
    Assignee: HOKUTO CORPORATION
    Inventors: Masato Maruyama, Toshiaki Kobayashi, Junya Kawai, Kenji Ouchi, Satoshi Inatomi
  • Publication number: 20190248785
    Abstract: The present invention provides a compound having antiviral effects, particularly having growth inhibitory activity on influenza viruses, a preferred example of the compound being a substituted 3-hydroxy-4-pyridone derivative prodrug having cap-dependent endonuclease inhibitory activity.
    Type: Application
    Filed: November 19, 2018
    Publication date: August 15, 2019
    Applicant: Shionogi & Co., Ltd.
    Inventors: Chika TAKAHASHI, Hidenori MIKAMIYAMA, Toshiyuki AKIYAMA, Kenji TOMITA, Yoshiyuki TAODA, Makoto KAWAI, Kosuke ANAN, Masayoshi MIYAGAWA, Naoyuki SUZUKI
  • Patent number: 10367130
    Abstract: The present invention provides a method for manufacturing a dopant composition-nanomaterial composite, which method makes it possible to simply and efficiently change a Seebeck coefficient value of a nanomaterial. This manufacture method of the present invention includes the steps of: (a) putting a dopant composition in contact with a nanomaterial in a solvent; (b) drying a mixture obtained in the step (a) so as to remove the solvent, the dopant composition containing a given anion and an onium ion.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: July 30, 2019
    Assignees: NATIONAL UNIVERSITY CORPORATION NARA INSTITUTE OF SCIENCE AND TECHNOLOGY, SEKISUI CHEMICAL CO., LTD.
    Inventors: Yoshiyuki Nonoguchi, Tsuyoshi Kawai, Fumihiko Kamikonya, Kenji Ohashi, Kazuhiro Takeda
  • Publication number: 20190213334
    Abstract: An OLT (10) is provided with a priority control bypass circuit (16) and an encryption/decryption bypass circuit (17), or an ONU (20) is provided with a priority control bypass circuit (26) and an encryption/decryption bypass circuit (27), and one or both of encryption/decryption processing and priority control processing are bypassed in accordance with a priority control bypass instruction (BP) and an encryption/decryption bypass instruction (BE), which are set in advance. This reduces a processing delay that occurs in the OLT or the ONU.
    Type: Application
    Filed: September 13, 2017
    Publication date: July 11, 2019
    Inventors: Takeshi SAKAMOTO, Kenji KAWAI, Junichi KATO, Kazuhiko TERADA, Hiroyuki UZAWA, Nobuyuki TANAKA, Tomoaki KAWAMURA
  • Publication number: 20190190454
    Abstract: An amplifier circuit includes a first transistor, a second transistor, a first pathway and a second pathway. The first transistor amplifies an external signal that is input from outside the amplifier circuit. The second transistor amplifies a detection signal that detects a level of the external signal. The first pathway is connected between a collector of the first transistor and a base of the second transistor to supply the detection signal that is output from the collector of the first transistor to the base of the second transistor. The second pathway is connected between an emitter of the first transistor and the base of the second transistor to supply a bias voltage from the emitter of the first transistor to the base of the second transistor.
    Type: Application
    Filed: November 20, 2018
    Publication date: June 20, 2019
    Applicant: DENSO TEN Limited
    Inventors: Tetsuro OKANO, Kenji KAWAI, Masayoshi HIRAI
  • Patent number: 10324234
    Abstract: The present invention provides a substrate with an antireflection layer not only which is excellent in the antireflection properties but also which has high water repellency and oil repellency and favorable oil and fat stain removability, and a display device provided with a substrate with an antireflection layer. A substrate with an antireflection layer, which comprises an antireflection layer on at least one surface of the substrate, wherein the antireflection layer contains a silica porous film having fluorinated organic groups, and the surface of the antireflection layer on the opposite side from the substrate has an element number ratio F/Si of at least 1 as obtained from the peak height of F1s and the peak height of Si2p in surface analysis by scanning X-ray photoelectron spectroscopy (ESCA) and has an arithmetic mean roughness (Sa) of at most 3.0 nm.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: June 18, 2019
    Assignee: AGC Inc.
    Inventors: Kenji Ishizeki, Akira Isobe, Yuki Hatanaka, Yohei Kawai, Takashige Yoneda, Keisuke Abe
  • Publication number: 20190181707
    Abstract: A rotor is configured such that the rotor includes: a rotary tube whose inner circumferential surface is tapered and which is fitted to a rotary shaft whose outer circumferential surface is tapered; a permanent magnet which is arranged on the outer circumferential side of the rotary tube; and a sheath tube which is fitted to the outer circumferential side of the permanent magnet so as to cover the permanent magnet, and that as the outside diameter of a multilayer member formed with the rotary tube and the permanent magnet is reduced so as to be tapered along an axial direction, the interference of the sheath tube for the multilayer member is increased so as to be tapered along the axial direction.
    Type: Application
    Filed: December 1, 2018
    Publication date: June 13, 2019
    Applicant: FANUC CORPORATION
    Inventors: Shinobu TAKANO, Takafumi KAJIYA, Kenji KAWAI, Hisashi MAEDA
  • Publication number: 20190169206
    Abstract: The present invention provides a pharmaceutical composition containing the following compound having antiviral action: wherein each of the symbols is defined in the specification.
    Type: Application
    Filed: August 9, 2017
    Publication date: June 6, 2019
    Applicant: Shionogi & Co., Ltd.
    Inventors: Makoto KAWAI, Kenji TOMITA, Toshiyuki AKIYAMA, Azusa OKANO, Masayoshi MIYAGAWA
  • Patent number: 10264681
    Abstract: A substrate includes a core substrate; a cavity formed on an upper surface side of the core substrate; a bottom plate of the cavity formed integrally with the core substrate; a through-hole formed in the bottom plate, a component mounting portion formed at a portion of the bottom plate, an electronic component mounted on the component mounting portion so as to be disposed inside the cavity; a first insulating layer formed on an upper surface of the core substrate so as to cover an upper surface of the electronic component; and a second insulating layer formed on a lower surface of the core substrate so as to fill the through-hole and cover a lower surface of the electronic component. The cavity is filled with the first insulating layer and the second insulating layer. The first insulating layer and the second insulating layer are formed of the same insulating resin.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: April 16, 2019
    Assignee: SHINKO ELECTRIC INDUSTRIES CO., LTD.
    Inventor: Kenji Kawai
  • Publication number: 20190036404
    Abstract: A rotor includes: a rotary member; permanent magnets in a plurality of columns which are arranged along the circumferential direction of the rotary member and each of which is divided into a plurality of permanent magnets in a rotary axis direction X of the rotary member; and a sheath tube which is fitted to the outer circumferential side of the permanent magnets, which covers the permanent magnets and which is formed of a fiber-reinforced plastic, and the sheath tube is divided, in the rotary axis direction X of the rotary member, by a division number which exceeds the division number of the permanent magnets.
    Type: Application
    Filed: June 15, 2018
    Publication date: January 31, 2019
    Applicant: FANUC CORPORATION
    Inventors: Shinobu TAKANO, Takafumi KAJIYA, Kenji KAWAI
  • Patent number: 10193630
    Abstract: A selection and distribution circuit (13) is provided between N optical transceivers (11) and one PON control circuit (12). The selection and distribution circuit (13) selects the optical transceiver (11) corresponding to an upstream frame that time-divisionally arrives, thereby transferring the upstream frame opto-electrically converted by the transceiver (11) to the PON control circuit (12) and distributing a downstream frame from the PON control circuit (12) to each optical transceiver (11). A power supply control circuit (23) stops power supply to at least one of one of optical transceivers (11) that are not used to transfer the frame of the optical transceivers (11) and a circuit that is not used to transfer the frame in the selection and distribution circuit (13). This can reduce the system cost per ONU in the optical transmission system.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: January 29, 2019
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Shoko Ohteru, Namiko Ikeda, Saki Hatta, Satoshi Shigematsu, Nobuyuki Tanaka, Kenji Kawai, Junichi Kato, Tomoaki Kawamura, Hiroyuki Uzawa, Yuki Arikawa, Naoki Miura
  • Patent number: 10128727
    Abstract: A rotor member includes a cylindrical sleeve part having a circular outer peripheral surface, a plurality of magnets arranged along the outer peripheral surface and including an inner peripheral surface having a curvature radius larger than a curvature radius of the outer peripheral surface, and a cylindrical holding member surrounding the plurality of magnets. Between the outer peripheral surface of the sleeve part and the inner peripheral surface of the magnets, a gap of a radial direction increased toward a circumferential edge portion of the magnets is formed.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: November 13, 2018
    Assignee: FANUC CORPORATION
    Inventors: Yohei Arimatsu, Kenji Kawai
  • Publication number: 20180242337
    Abstract: A convergence pattern selection unit (10A) sequentially generates a plurality of different patterns based on designated initial conditions, selects, as a convergence pattern, a pattern in which evaluation value has converged to an extreme value, and repeatedly executes selection of the convergence pattern by changing the initial conditions every time the convergence pattern is selected. A transmission pattern determination unit (10B) selects, as an optimum transmission pattern, one of the convergence patterns obtained by the convergence pattern selection unit (10A), which has the highest evaluation value. This allows searches for an optimum transmission pattern having a better evaluation value.
    Type: Application
    Filed: August 26, 2015
    Publication date: August 23, 2018
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Yuri ARIKAWA, Hiroyuki UZAWA, Kenji KAWAI, Satoshi SHIGEMATSU
  • Publication number: 20180212897
    Abstract: An upstream allocation circuit (14) and a downstream allocation circuit (15) are provided in an OLT (1). For example, a superimposed frame obtained by bundling upstream frames (upstream control frames+upstream data frames) from all ONUS is input to the upstream allocation circuit (14) via a frame reproduction circuit (12-1). The superimposed frame may be generated at the stage of optical signals or generated after converting optical signals into electrical signals. The upstream allocation circuit (14) allocates each of the upstream control frames bundled into the superimposed frame to a predetermined PON control circuit (13) based on information (PON port number or LLID) added to the frames. The downstream allocation circuit (15) allocates, to a preset frame reproduction circuit (12), each downstream control frames output from the PON control circuits (13).
    Type: Application
    Filed: July 14, 2016
    Publication date: July 26, 2018
    Inventors: Saki HATTA, Tomoaki KAWAMURA, Kenji KAWAI, Nobuyuki TANAKA, Satoshi SHIGEMATSU, Namiko IKEDA, Shoko OHTERU, Junichi KATO
  • Publication number: 20180192328
    Abstract: A CU (Central Unit) executes scheduling for allocating radio resources of RRUs (Remote Radio Units) to radio transmission of downlink data while broadcasting, to DMs (Data Managers) via MFH, downlink data from MBH. Each DM selects, based on an allocation result obtained by scheduling, the downlink data of an RRU (Remote Radio Unit) corresponding to the self DM from the accumulated downlink data from the CU, and transfers the selected downlink data to the corresponding RRU while discarding the downlink data of other RRUs. Based on the allocation result, each RRU performs radio transmission of the downlink data from the DM to a corresponding UE (User Equipment) using the designated radio resource. This makes it possible to efficiently transfer the downlink data from the CU to each RRU via the MFH constructed by a TDM system represented by TDM-PON.
    Type: Application
    Filed: June 22, 2016
    Publication date: July 5, 2018
    Inventors: Hiroyuki UZAWA, Yuki ARIKAWA, Kenji KAWAI, Satoshi SHIGEMATSU
  • Patent number: 9954617
    Abstract: An OLT (1) is formed by N optical transceivers (11), one PON control circuit (12), and one selection and distribution circuit (13). An optical transceiver selection control signal (SC) is transferred from the PON control circuit (12) to the selection and distribution circuit (13). The optical transceiver selection control signal (SC) indicates the timing of a discovery window, the timing of a grant, and a logical link identification number of a registered ONU assigned to the grant (a logical link identification number for a logical link with the registered ONU). The selection and distribution circuit (13) selects one optical transceiver (11-s (s is an integer falling within a range of 0 to N?1)) from the optical transceivers (11-0 to 11-N?1) based on the optical transceiver selection control signal (SC) from the PON control circuit (12).
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: April 24, 2018
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Kenji Kawai, Yuki Arikawa, Tomoaki Kawamura, Nobuyuki Tanaka, Satoshi Shigematsu, Naoki Miura
  • Publication number: 20180062746
    Abstract: A selection and distribution circuit (13) is provided between N optical transceivers (11) and one PON control circuit (12). The selection and distribution circuit (13) selects the optical transceiver (11) corresponding to an upstream frame that time-divisionally arrives, thereby transferring the upstream frame opto-electrically converted by the transceiver (11) to the PON control circuit (12) and distributing a downstream frame from the PON control circuit (12) to each optical transceiver (11). A power supply control circuit (23) stops power supply to at least one of one of optical transceivers (11) that are not used to transfer the frame of the optical transceivers (11) and a circuit that is not used to transfer the frame in the selection and distribution circuit (13). This can reduce the system cost per ONU in the optical transmission system.
    Type: Application
    Filed: March 4, 2016
    Publication date: March 1, 2018
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Shoko OHTERU, Namiko IKEDA, Saki HATTA, Satoshi SHIGEMATSU, Nobuyuki TANAKA, Kenji KAWAI, Junichi KATO, Tomoaki KAWAMURA, Hiroyuki UZAWA, Yuki ARIKAWA, Naoki MIURA
  • Publication number: 20180046699
    Abstract: A computer-implemented system and method for identifying documents for review is provided. A set of documents is sorted by topic. A status of near duplicate is assigned to two or more documents in the set. Threads of the documents are identified. Each thread includes at least one near duplicate document that is recursively included within another near duplicate document in that thread. In each thread, the near duplicate documents are ordered based on a length of the thread included in each near duplicate document. The near duplicate document that has the longest length is selected for each thread and provided for review.
    Type: Application
    Filed: October 23, 2017
    Publication date: February 15, 2018
    Inventors: Kenji Kawai, David McDonald
  • Publication number: 20180007792
    Abstract: A substrate includes a core substrate; a cavity formed on an upper surface side of the core substrate; a bottom plate of the cavity formed integrally with the core substrate; a through-hole formed in the bottom plate, a component mounting portion formed at a portion of the bottom plate, an electronic component mounted on the component mounting portion so as to be disposed inside the cavity; a first insulating layer formed on an upper surface of the core substrate so as to cover an upper surface of the electronic component; and a second insulating layer formed on a lower surface of the core substrate so as to fill the through-hole and cover a lower surface of the electronic component. The cavity is filled with the first insulating layer and the second insulating layer. The first insulating layer and the second insulating layer are formed of the same insulating resin.
    Type: Application
    Filed: June 26, 2017
    Publication date: January 4, 2018
    Inventor: Kenji Kawai