Patents by Inventor Kenji Ota

Kenji Ota 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: 12037460
    Abstract: Provided is a thermally conductive silicone gel composition having high thermal conductivity, excellent extrudability and mixing stability, resistance to separation of each liquid even in a two-component package, stable storage, and superior gap fill properties for heat dissipating components, and the like. A multi-component thermally conductive silicone gel composition comprises: (A-1) an alkenyl group-containing organopolysiloxane having a degree of polymerization of 5 to 100; (A-2) an alkenyl group-containing organopolysiloxane having a degree of polymerization of 400 or more; (B) an organohydrogenpolysiloxane; (C) a catalyst for hydrosilylation reaction; (D) a thermally conductive filler; (E) a silane coupling agent, and the like; and (F) an organopolysiloxane having a hydrolyzable silyl group at the end of the molecular chain. A mixture viscosity of component (A-1) and component (A-2) is within a range of 1.15 to 5.50 times the viscosity of the component (A-1) at 25° C.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: July 16, 2024
    Assignee: DOW TORAY CO., LTD.
    Inventor: Kenji Ota
  • Publication number: 20240199935
    Abstract: Provided is a curable organopolysiloxane composition that has high thermal conductivity while suppressing a change in hardness of the cured material after heat aging, and that provides an organopolysiloxane cured material that can maintain flexibility and stress relaxation even when a thermally conductive member made of the cured materials is used at high temperature. The disclosure also relates to a thermally conductive member made of the composition and a heat dissipating structure using the member. The composition comprises: (A) an alkenyl group-containing organopolysiloxane, (B) an organohydrogen polysiloxane, (C) a thermally conductive filler in an amount of from 60 to 90% by volume, (D) at least one type selected from fatty acids, fatty acid esters, and fatty acid metal salts in an amount of from 0.05 to 2.00 parts by mass per 100 parts by mass of Component (C), (E) a hydrosilylation reaction catalyst, and (F) a heat resistance imparting agent.
    Type: Application
    Filed: March 22, 2022
    Publication date: June 20, 2024
    Inventor: Kenji OTA
  • Patent number: 11882122
    Abstract: A creation device includes processing circuitry configured to collect pieces of information about IoT (Internet of Things) apparatuses connected to IoT gateways, and white lists stored in the IoT gateways, the white lists specifying content of communication allowed for each of the IoT apparatuses, calculate a feature value showing communication features of IoT apparatuses for each of the IoT gateways, and degrees of similarity in the feature value among the IoT gateways, based on the collected pieces of information about the IoT apparatuses, and extract, if any of the calculated similarity degrees is equal to or above a predetermined threshold, pieces of white list information about IoT apparatuses to mutually complement white lists stored in IoT gateways, from pieces of white list information about IoT apparatuses included in the white lists.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: January 23, 2024
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Koki Nomura, Yukio Nagafuchi, Iifan Tyou, Tetsuhiko Murata, Koji Morishita, Kenji Ota, Akio Mukaiyama, Takahiro Nukushina, Hiroki Nagayama, Masaki Tanikawa
  • Publication number: 20230399559
    Abstract: A thermally conductive silicone composition comprises: (A) an organopolysiloxane having on average at least two alkenyl groups in a molecule; (B) an organohydrogenpolysiloxane having on average at least two silicon atom-bonded hydrogen atoms in a molecule; (C) a hydrosilylation reaction catalyst; (D) a thermally conductive filler comprising: (D-1) a thermally conductive powder other than an aluminum nitride powder, the thermally conductive powder having a specific average particle diameter, (D-2) an aluminum nitride powder having a specific average particle diameter, and (D-3) a spherical aluminum oxide powder and/or a spherical magnesium oxide powder having a specific average particle diameter, respectively; and (E) a specific surface treating agent or wetting agent.
    Type: Application
    Filed: October 8, 2021
    Publication date: December 14, 2023
    Inventor: Kenji OTA
  • Publication number: 20230357571
    Abstract: A curable organopolysiloxane composition is provided. The composition provides an organopolysiloxane cured product that can be cured at low temperatures while having high thermal conductivity and that can achieve high initial adhesion and adhesive strength to various base materials in contact during the curing process. A thermally conductive member containing the composition, and a heat dissipating structure using the member, are also provided. The curable organopolysiloxane composition comprises (A) an alkenyl group-containing organopolysiloxane having a specific viscosity, (B) an organohydrogenpolysiloxane, (C) a hydrosilylation-reaction catalyst, (D) a thermally conductive filler, (E) a siloxane compound having an alkenyl group and a hydrolyzable silyl group on ends of a specific molecular chain, (F) an alkoxysilane having an alkyl group with 6 or more carbon atoms or a hydrolyzed condensate thereof, and (G) an adhesion promoter.
    Type: Application
    Filed: June 21, 2021
    Publication date: November 9, 2023
    Inventor: Kenji OTA
  • Patent number: 11765047
    Abstract: Provided is an IoT GW (10), including a learning unit (131) configured to create, for each IoT device connected to the IoT GW (10), a normal communication model (122) that has learned a normal communication pattern of the IoT device; and a determination unit (132) configured to: determine, for learning by the learning unit (131), whether to interrupt, finish, continue, and resume learning based on a load of a learning environment; and control learning processing by the learning unit (131) based on a result of determination.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: September 19, 2023
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Koki Nomura, Iifan Tyou, Tetsuhiko Murata, Koji Morishita, Kenji Ota, Akio Mukaiyama, Takahiro Nukushina, Hiroki Nagayama, Yukio Nagafuchi, Masaki Tanikawa
  • Patent number: 11674040
    Abstract: Provided is: a thermally conductive silicone gel composition which has a high thermal conductivity, and has excellent gap-filling ability and repairability; a thermally conductive member comprising the thermally conductive silicone gel composition; and a heat dissipation structure using the same. The thermally conductive silicone gel composition comprises: (A) an alkenyl group-containing organopolysiloxane; (B) a straight-chain organohydrogenpolysiloxane containing an average of 2 to 4 silicon-bonded hydrogen atoms per molecule, at least two of the hydrogen atoms are being located on a side chain of the molecular chain, wherein the amount of silicon-bonded hydrogen atoms in component (B) is 0.2 to 5 mol with respected to 1 mol of an alkenyl group contained in component (A); (C) a catalyst for hydrosilylation reaction; (D) a thermally conductive filler; and (E) an alkoxysilane having an alkyl group with 6 or more carbon atoms per molecule.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: June 13, 2023
    Assignee: DOW TORAY CO., LTD.
    Inventor: Kenji Ota
  • Patent number: 11664904
    Abstract: A transmission device includes: a memory; and a processor coupled to the memory and configured to: transmit or receive an optical signal; filter an electrical electric field signal that indicates electric field information of the optical signal; calculate a transmission characteristic of filtering of the electric field signal and set the transmission characteristic in the filter on a basis of a narrowing amount of a wavelength band of the optical signal transmitted through a transmission line and a narrowing amount of the wavelength band when a state of the transmission line is changed on a basis of transmission line information regarding the transmission line of the optical signal; and set a transmission parameter of the optical signal according to quality of the electric field signal filtered by the filter.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: May 30, 2023
    Assignee: FUJITSU LIMITED
    Inventors: Shoichiro Oda, Daijiro Tanaka, Kenji Ota, Takafumi Kusumi, Daiki Matsuyama
  • Patent number: 11578245
    Abstract: Provided is: a thermally conductive silicone gel composition which has a high thermal conductivity, and is less likely to flow out and slip off/drop off from a surface on which the gel composition is placed, even when the composition that has not been cured is placed on a sloped surface or in a vertical direction, and has excellent gap-filling ability with respect to a heat dissipation part, etc., and excellent repairability if desired; a thermally conductive member comprising the thermally conductive silicone gel composition; and a heat dissipation structure using the same. The thermally conductive silicone gel composition comprises: (A) an alkenyl group-containing organopolysiloxane; (B) an organohydrogenpolysiloxane; (C) a catalyst for a hydrosilylation reaction; (D) a thermally conductive filler; (E) a silane-coupling agent; and (F) a specific organopolysiloxane having a hydrolyzable silyl group at one end thereof. The gel composition has certain viscosity properties as disclosed herein.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: February 14, 2023
    Assignee: DOW TORAY CO., LTD.
    Inventor: Kenji Ota
  • Patent number: 11549043
    Abstract: Provided is: a multicomponent curable thermally conductive silicone gel composition which has a high thermal conductivity, has excellent gap-filling ability and repairability, and has superior storage stability; a thermally conductive member comprising the composition; and a heat dissipating structure using the same. The thermally conductive silicone gel composition comprises: (A) an alkenyl group-containing organopolysiloxane; (B) an organohydrogenpolysiloxane; (C) a catalyst for hydrosilylation reaction; (D) a thermally conductive filler; (E) a silane-coupling agent or a hydrolysis condensation product thereof; and (F) a specific organopolysiloxane having a hydrolyzable silyl group at one end thereof.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: January 10, 2023
    Assignee: DOW TORAY CO., LTD.
    Inventors: Kenji Ota, Toyohiko Fujisawa
  • Patent number: 11493844
    Abstract: The present invention provides a photosensitive resin composition for a flexographic printing plate, the photosensitive resin composition including at least a hydrophilic copolymer (A), a thermoplastic elastomer (B), a photo-polymerizable monomer (C), a photo-polymerization initiator (D), a plasticizer (E), and an acidic group-containing polymer (F), wherein the photosensitive resin composition for the flexographic printing plate has an acid value of 1 to 100 mgKOH/g, as measured by neutralization titration.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: November 8, 2022
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Hiroshi Ogawa, Hideo Saito, Tohru Kihara, Kenji Ota
  • Patent number: 11489832
    Abstract: A communication control apparatus includes a collection control unit, an analysis unit, and a coordination unit. The collection control unit collects communication performed with a device connected to a subordinate network, and controls communication performed by the device based on a first control condition; The analysis unit analyzes the communication collected by the collection control unit to extract device identification information indicating characteristics of the communication performed by the device. The analysis unit specifies a device name of the device and the first control condition corresponding to a normal communication range extracted from the device identification information, based on the device identification information.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: November 1, 2022
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Iifan Tyou, Masaki Tanikawa, Yukio Nagafuchi, Shingo Kashima, Tetsuhiko Murata, Kenji Ota, Takuya Saeki, Tsuyoshi Kondo, Koki Nomura, Akio Mukaiyama, Hiroki Nagayama
  • Publication number: 20220311677
    Abstract: Provided is an IoT GW (10), including a learning unit (131) configured to create, for each IoT device connected to the IoT GW (10), a normal communication model (122) that has learned a normal communication pattern of the IoT device; and a determination unit (132) configured to: determine, for learning by the learning unit (131), whether to interrupt, finish, continue, and resume learning based on a load of a learning environment; and control learning processing by the learning unit (131) based on a result of determination.
    Type: Application
    Filed: June 11, 2019
    Publication date: September 29, 2022
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Koki NOMURA, Iifan TYOU, Tetsuhiko MURATA, Koji MORISHITA, Kenji OTA, Akio MUKAIYAMA, Takahiro NUKUSHINA, Hiroki NAGAYAMA, Yukio NAGAFUCHI, Masaki TANIKAWA
  • Publication number: 20220275199
    Abstract: A polyester resin composition is obtained by compounding at least: (A) 100 parts by mass of a polybutylene terephthalate resin, (B) 15 to 100 parts by mass of an amorphous resin and (C) 0.01 to 5 parts by mass of an epoxy resin with a special structure, and the melting point of the polyester resin composition is greater than 210° C. but less than 221° C. The polyester resin composition and the molded product thereof have excellent laser transmittance and can be used for various electrical mounting components for automobiles, connectors, switch components, relay components.
    Type: Application
    Filed: July 20, 2020
    Publication date: September 1, 2022
    Inventors: Xianwen Tang, Junrui Xu, Lezhen Zhang, Koya Kato, Kenji Ota, Akitoshi Omayu, Wenbo Zhu
  • Publication number: 20220224417
    Abstract: A transmission device includes: a memory; and a processor coupled to the memory and configured to: transmit or receive an optical signal; filter an electrical electric field signal that indicates electric field information of the optical signal; calculate a transmission characteristic of filtering of the electric field signal and set the transmission characteristic in the filter on a basis of a narrowing amount of a wavelength band of the optical signal transmitted through a transmission line and a narrowing amount of the wavelength band when a state of the transmission line is changed on a basis of transmission line information regarding the transmission line of the optical signal; and set a transmission parameter of the optical signal according to quality of the electric field signal filtered by the filter.
    Type: Application
    Filed: November 1, 2021
    Publication date: July 14, 2022
    Applicant: FUJITSU LIMITED
    Inventors: Shoichiro Oda, Daijiro Tanaka, Kenji Ota, Takafumi Kusumi, Daiki Matsuyama
  • Publication number: 20220185992
    Abstract: Provided is a curable organopolysiloxane composition having: high thermal conductivity, excellent deep curability under room temperature, excellent adhesion to various base materials, and excellent tight fitting properties to heat dissipating components and the like; a thermally conductive member containing the same; and a heat dissipating structure using the same. A multicomponent curable organopolysiloxane composition comprises: a diorganopolysiloxane with a molecular terminal blocked by a hydroxysilyl group; (B) a diorganopolysiloxane with a molecular terminal blocked by an alkoxysilyl group; (C) a thermally conductive filler; (D) an organic silicon compound serving as a surface treating agent of component (C); (E) a component selected from alkylalkoxysilanes and specific adhesion-imparting agents; and (F) a catalytic amount of a condensation-reaction catalyst.
    Type: Application
    Filed: March 18, 2020
    Publication date: June 16, 2022
    Inventors: Kenji OTA, Toyohiko FUJISAWA, Harumi KODAMA
  • Publication number: 20220169799
    Abstract: Provided is a thermally conductive silicone gel composition having high thermal conductivity, excellent extrudability and mixing stability, resistance to separation of each liquid even in a two-component package, stable storage, and superior gap fill properties for heat dissipating components, and the like. A multi-component thermally conductive silicone gel composition comprises: (A-1) an alkenyl group-containing organopolysiloxane having a degree of polymerization of 5 to 100; (A-2) an alkenyl group-containing organopolysiloxane having a degree of polymerization of 400 or more; (B) an organohydrogenpolysiloxane; (C) a catalyst for hydrosilylation reaction; (D) a thermally conductive filler; (E) a silane coupling agent, and the like; and (F) an organopolysiloxane having a hydrolyzable silyl group at the end of the molecular chain. A mixture viscosity of component (A-1) and component (A-2) is within a range of 1.15 to 5.50 times the viscosity of the component (A-1) at 25° C.
    Type: Application
    Filed: March 18, 2020
    Publication date: June 2, 2022
    Inventor: Kenji OTA
  • Publication number: 20220153999
    Abstract: Provided is: a curable organopolysiloxane composition which is easily cured at room temperature, in addition to having excellent adhesiveness with respect to various base materials, a protectant or adhesive composition of electric/electronic parts including this curable organopolysiloxane composition, as well as an electric/electronic equipment wherein electric/electronic parts are encapsulated or sealed by these curable organopolysiloxane compositions. A room temperature curable organopolysiloxane composition of a multicomponent type which is individually stored, including: (A) a diorganopolysiloxane blocked at a molecular terminal with a hydroxysilyl group; (B) a diorganopolysiloxane blocked at a molecular terminal with an alkoxysilyl group; (C) a functional filler; (D) a compound having two or more alkoxy groups bonded to a silicon atom per molecule; and (E) a catalytic amount of a catalyst for a condensation reaction.
    Type: Application
    Filed: March 8, 2020
    Publication date: May 19, 2022
    Inventor: Kenji OTA
  • Publication number: 20220141185
    Abstract: A communication terminal apparatus includes processing circuitry configured to collect communication of an application and control the communication of the application based on a first control condition, analyze the communication collected to determine whether the application is a communication control target, and generate the first control condition based on a normal communication range of the application that is the communication control target, and transmit at least a part of first shared information including identification information about the application and the first control condition to a second communication terminal apparatus that is different from the communication terminal apparatus.
    Type: Application
    Filed: February 7, 2020
    Publication date: May 5, 2022
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Iifan TYOU, Takahiro NUKUSHINA, Masaki TANIKAWA, Yukio NAGAFUCHI, Shingo KASHIMA, Tetsuhiko MURATA, Kenji OTA, Tsuyoshi KONDO, Koki NOMURA, Akio MUKAIYAMA, Hiroki NAGAYAMA, Koji MORISHITA
  • Publication number: 20220094687
    Abstract: A creation device includes processing circuitry configured to collect pieces of information about IoT (Internet of Things) apparatuses connected to IoT gateways, and white lists stored in the IoT gateways, the white lists specifying content of communication allowed for each of the IoT apparatuses, calculate a feature value showing communication features of IoT apparatuses for each of the IoT gateways, and degrees of similarity in the feature value among the IoT gateways, based on the collected pieces of information about the IoT apparatuses, and extract, if any of the calculated similarity degrees is equal to or above a predetermined threshold, pieces of white list information about IoT apparatuses to mutually complement white lists stored in IoT gateways, from pieces of white list information about IoT apparatuses included in the white lists.
    Type: Application
    Filed: January 27, 2020
    Publication date: March 24, 2022
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Koki NOMURA, Yukio NAGAFUCHI, Iifan TYOU, Tetsuhiko MURATA, Koji MORISHITA, Kenji OTA, Akio MUKAIYAMA, Takahiro NUKUSHINA, Hiroki NAGAYAMA, Masaki TANIKAWA