Patents by Inventor Atsushi Nakamura
Atsushi Nakamura 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: 20240146413Abstract: An object of the present invention is to provide a Brillouin gain spectrum distribution measuring method and apparatus capable of measuring a BGS, having a line width narrower than usual, in a distributed manner in the longitudinal direction of an optical fiber under test. This measuring apparatus prepares pump light in which a pulse is added to continuous light and probe light of continuous light in which a frequency is shifted from the pump light, makes the probe light incident on one end of the FUT and the pump light incident on the other end, and obtains a time waveform of a component amplified by the pump light pulse of a probe light intensity amplified by the pump light. This measuring apparatus changes an optical frequency difference between the pump light and the probe light, and obtains a time waveform for each optical frequency difference. This measuring apparatus obtains a BGS distribution of the FUT from these time waveforms.Type: ApplicationFiled: January 26, 2021Publication date: May 2, 2024Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Tomokazu ODA, Daisuke IIDA, Atsushi NAKAMURA, Yusuke KOSHIKIYA, Nazuki HONDA
-
Publication number: 20240140326Abstract: An autonomous vehicle roof top sensor module includes a shell attached to a roof of an autonomous vehicle. The shell includes a top panel, a bottom panel, and a front panel, which are connected together to define an interior, in which an internal sensor bracket is arranged to support a front middle portion of the top panel and provides a structure for mounting a sensor. The sensor is mounted on the sensor bracket and detects a characteristic of the autonomous vehicle or a characteristic of an environment surrounding the autonomous vehicle. The sensor bracket connects the front middle portion of the top panel to the bottom panel, and thus inhibits sagging of the top panel, and also provides a structure for mounting sensors in the shell.Type: ApplicationFiled: October 27, 2022Publication date: May 2, 2024Inventors: Atsushi MAEDA, Leo NAKAMURA
-
Publication number: 20240140325Abstract: An autonomous vehicle roof top sensor module includes a shell configured to attach to a roof of an autonomous vehicle. The shell defines an interior in which a sensor is arranged. The sensor is for detecting a characteristic of the autonomous vehicle or a characteristic of an environment surrounding the autonomous vehicle. The shell includes two flanges, each of which includes two lifting features arranged thereon. The lifting features provide a connection point in the form of a through hole for attaching a mechanical lift system to the shell for lifting of the shell onto the roof. The module also includes two appliques that are attach to the roof and cover the lifting features, the flanges, and two portions of the roof not covered by the shell.Type: ApplicationFiled: October 27, 2022Publication date: May 2, 2024Inventors: Atsushi MAEDA, Leo NAKAMURA
-
Publication number: 20240140321Abstract: A water intrusion prevention system for a roof top sensor module includes a bolt, a cap nut, gaskets, and a rib. The module is connected to a roof of an autonomous vehicle, and includes a shell defining an interior and a sensor arranged therein. A shaft of the bolt is inserted up through an opening in the roof, up through an opening in the shell, and up through an opening in the rib so that a top portion of the shaft is arranged in the interior. The top portion of the shaft and the cap nut are connected together in the interior, which connects the module to the roof. The cap nut and the gaskets together form a liquid-tight seal that prevents liquid/water in the interior of the shell from passing through the opening in the roof into an interior of the vehicle under the roof.Type: ApplicationFiled: October 27, 2022Publication date: May 2, 2024Inventors: Atsushi MAEDA, Leo NAKAMURA
-
Publication number: 20240133008Abstract: An amorphous alloy soft magnetic powder contains a particle having a composition with a compositional formula (Fe1-xCrx) a (Si1-yBy)100-a-bCb expressed by an atomic ratio, in which 0<x?0.06, 0.3?y?0.7, 70.0?a?81.0, and 0<b?3.0, and when XAFS measurement is performed with an analysis depth set to a bulk, an obtained Fe—K absorption edge XANES spectrum has a first absorption edge structure having a peak A present in a range of 7113±1 eV and a first continuous band structure positioned at a higher energy side than the first absorption edge structure, and an intensity of the peak A at 7113 eV is 0.60 or more and 0.90 or less when an intensity of the first continuous band structure is 1.Type: ApplicationFiled: July 24, 2023Publication date: April 25, 2024Inventors: Atsushi NAKAMURA, Takuma ENOMOTO, Kai KITAMURA, Junya ABE, Masayuki OMOTO
-
Publication number: 20240135213Abstract: An information processing device that designs a Bayesian network includes: an input unit configured to input, as elements of a Bayesian network, information regarding a plurality of nodes, an edge indicating a causal relation between a master node and a slave node in the plurality of nodes, and a weight indicating the degree of influence of a definition content of the master node on a probability distribution of the slave node; and a generation unit configured to generate a Bayesian network using the input information.Type: ApplicationFiled: February 26, 2021Publication date: April 25, 2024Inventors: Ryosuke SATO, Kyoko YAMAGOE, Toshihiko SEKI, Atsushi TAKADA, Mizuto NAKAMURA
-
Patent number: 11965758Abstract: An object of the present invention is to provide a Brillouin optical sensing device and an optical sensing method capable of reducing introduction costs. The Brillouin optical sensing device according to the present invention includes: a sensing fiber 90 in which a plurality of optical fibers having Brillouin frequency shift characteristics different from each other are arranged in parallel; an optical measuring instrument 11 that launches an optical pulse into at least two of the optical fibers of the sensing fiber 90 to generate Brillouin scattering lights and measures a beat frequency of a beat signal between the Brillouin scattering lights at any position of the sensing fiber 90; and an arithmetic processing unit 12 that acquires a physical quantity of the sensing fiber 90 at said any position based on the beat frequency acquired by the optical measuring instrument 11.Type: GrantFiled: May 21, 2020Date of Patent: April 23, 2024Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Atsushi Nakamura, Chihiro Kito, Daisuke Iida, Junichi Kawataka, Hiroyuki Oshida
-
Patent number: 11965701Abstract: In a heat exchanger, an outer diameter of a plurality of heat transfer pipes is defined as Do, a wall thickness is defined as tP, an area represented by a numerical expression of a row pitch L1×a step pitch L2 is defined as A, and an area represented by a numerical expression of ((Do?2×tP)/2)2×? is defined as B, a relation of Do<5.5 mm, a relation of (0.2076×tP2?0.1480×tP+0.0545)×Do{circumflex over (?)}(?0.0021×tP2?0.0528×tP+0.0164)?B/A?(0.0219×tP2?0.0185×tP+0.0043)×ln (Do)+(1.6950×tP2+1.8455×tP+1.5416), and a relation of B/A<0.0076×tP2?0.0417×tP+0.0574 are satisfied.Type: GrantFiled: August 6, 2019Date of Patent: April 23, 2024Assignee: Mitsubishi Electric CorporationInventors: Akira Yatsuyanagi, Tsuyoshi Maeda, Akira Ishibashi, Atsushi Morita, Shin Nakamura
-
Publication number: 20240124244Abstract: A conveying roller, a conveyor device, and an inclined conveyor for objects. A conveying roller comes into contact with an object and moves the object, the conveying roller including: a core member and a plurality of blade-shaped pieces, the blade-shaped piece being elastically deformable and being provided around the core member.Type: ApplicationFiled: March 7, 2022Publication date: April 18, 2024Inventors: Kazuo ITOH, Tatsuhiko NAKAMURA, Koji UEDA, Atsushi NISHIMURA
-
Patent number: 11959197Abstract: A first aspect of the present invention is carbon fiber wherein the surface of a monofilament has a center line average roughness Ra of 6.0 nm or more and 13 nm or less, and the monofilament has a long diameter/short diameter ratio of 1.11 or more and 1.245 or less. A second aspect of the present invention is carbon fiber precursor acrylic fiber wherein the surface of a monofilament has a center line average roughness Ra of 18 nm or more and 27 nm or less, and the monofilament has a long diameter/short diameter ratio of 1.11 or more and 1.245 or less. The carbon fiber according to the first aspect is obtained by stabilizing and carbonizing under specific conditions the carbon fiber precursor acrylic fiber according to the second aspect.Type: GrantFiled: August 15, 2019Date of Patent: April 16, 2024Assignee: Mitsubishi Chemical CorporationInventors: Naomasa Matsuyama, Yuutarou Nakamura, Norifumi Hirota, Hiroko Matsumura, Katsuhiko Ikeda, Kouki Wakabayashi, Tadashi Ootani, Akihiro Itou, Kenji Hirano, Akito Hatayama, Kenji Kaneta, Atsushi Nakajima
-
Patent number: 11961649Abstract: An amorphous metal ribbon includes a plurality of laser irradiation mark rows each including a plurality of laser irradiation marks arranged in a row, in which when a distance between the laser irradiation mark rows that are adjacent to each other is set as d1, a distance between the laser irradiation marks in the laser irradiation mark row is set as d2, a diameter of the laser irradiation mark is set as d3, and a number density D of the laser irradiation marks is set as (1/d1)×(1/d2), the number density D of the laser irradiation marks is 0.05 pieces/mm2 or more and 0.50 pieces/mm2 or less, and when an area occupancy rate A of the laser irradiation marks is set as D×(d3/2)2×?×100, the area occupancy rate A of the laser irradiation marks is 0.0035% or more and 0.040% or less.Type: GrantFiled: February 18, 2022Date of Patent: April 16, 2024Assignee: SEIKO EPSON CORPORATIONInventor: Atsushi Nakamura
-
Publication number: 20240118040Abstract: A heat exchanger includes: a first heat exchanger configured to transfer heat between air and refrigerant; and a second heat exchanger provided in series with the first heat exchanger in a first direction that is a flow direction of the air, and configured to transfer heat between the air and the refrigerant. The first heat exchanger includes first heat transfer tubes through which the refrigerant flows, which are spaced apart from each other in a second direction intersecting the first direction, and each of which has a tube axis extending in a third direction intersecting the first and second directions. The second heat exchanger includes: second heat transfer tubes though which the refrigerant flows, which are spaced apart from each other in the second direction, and each of which has a tube axis extending in the third direction; and a corrugated fin provided between the second heat transfer tubes.Type: ApplicationFiled: April 20, 2021Publication date: April 11, 2024Inventors: Shin NAKAMURA, Tsuyoshi MAEDA, Akira YATSUYANAGI, Atsushi MORITA, Akira ISHIBASHI
-
Publication number: 20240113498Abstract: Some implementation described herein provide a semiconductor laser that is excellent in side mode suppression ratio (SMSR) yield. The semiconductor laser includes: a substrate; a mesa structure formed on the substrate to include a diffraction grating layer and an active layer, the diffraction grating layer including a phase shift portion; a window structure arranged between both ends of the mesa structure in a longitudinal direction thereof and both facets of the semiconductor laser; and a low-reflection facet coating film formed on the both facets, and an effective refractive index of the window structure is lower than an effective refractive index of the active layer.Type: ApplicationFiled: March 31, 2023Publication date: April 4, 2024Inventor: Atsushi NAKAMURA
-
Patent number: 11945436Abstract: A vehicle speed/headway control function and a lane-keeping function are provided as driving assist functions to assist in a driving operation by a driver. A mode-switching controller is provided for switching between the modes. In the lane-keeping assist mode, it is assessed whether or not a traveling condition has been met that an actual vehicle speed of the host vehicle exceeds a speed limit of a roadway on which the host vehicle is traveling during lane-keeping travel in which “hands-off mode,” which allows the driver to remove their hands from the steering wheel, has been selected. The mode is switched from “hands-off mode” to “hands-on mode,” which has as a condition that the driver has their hands on the steering wheel, upon assessing that the traveling condition that the actual vehicle speed exceeds the speed limit has been met.Type: GrantFiled: March 30, 2020Date of Patent: April 2, 2024Assignee: Nissan Motor Co., Ltd.Inventors: Atsushi Ito, Shohei Nakamura
-
Publication number: 20240104034Abstract: A second memory has n banks accessible in parallel, and stores pixel data. An input DMA controller respectively transfers the pixel data stored in the second memory to n multiply-accumulate units by using n input channels. A sequence controller controls the input DMA controller so as to cause a first input channel to transfer the pixel data in a first pixel space of the input bank to a first multiply-accumulate unit and cause a second input channel to transfer the pixel data in a second pixel space of the same input bank to a second multiply-accumulate unit.Type: ApplicationFiled: July 7, 2023Publication date: March 28, 2024Inventors: Kazuaki TERASHIMA, Atsushi NAKAMURA, Rajesh GHIMIRE
-
Publication number: 20240093945Abstract: An outdoor heat exchanger includes: a group of windward flat tubes, a group of leeward flat tubes and a distributor. When the outdoor heat exchanger acts as an evaporator, the refrigerant flows through the plurality of second flat tubes, the plurality of fourth flat tubes, the plurality of third flat tubes, and the plurality of first flat tubes in this order, and when the outdoor heat exchanger acts as a condenser, the refrigerant flows through the plurality of first flat tubes, the plurality of third flat tubes, the plurality of fourth flat tubes, and the plurality of second flat tubes in this order.Type: ApplicationFiled: March 15, 2021Publication date: March 21, 2024Inventors: Atsushi TAKAHASHI, Tsuyoshi MAEDA, Satoru YANACHI, Shin NAKAMURA, Atsushi MORITA
-
Publication number: 20240097441Abstract: A management system includes a plurality of resources configured to be electrically connected to an external power supply, and a management device configured to manage the resources. The management device includes a planning unit and a management unit. The planning unit is configured to determine a power balancing plan of each of the resources by using first information on a use schedule of each of the resources and second information indicating a magnitude of an environmental load in a process of generating electric power to be supplied by the external power supply. The management unit is configured to manage the resources to cause each of the resources to operate according to the power balancing plan or a modified power balancing plan in power balancing of the external power supply.Type: ApplicationFiled: August 3, 2023Publication date: March 21, 2024Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, CHUBU ELECTRIC POWER MIRAIZ CO., INC., CHUBU ELECTRIC POWER CO., INC.Inventors: Yusuke HORII, Eiko Megan UCHIDA, Masashi TANAKA, Masato EHARA, Sachio TOYORA, Tomoya TAKAHASHI, Akinori MORISHIMA, Takuji MATSUBARA, Tohru NAKAMURA, Ryou TAKAHASHI, Kenta ITO, Toshiki SUZUKI, Atsushi MIYASHITA, Takashi OCHIAI
-
Patent number: 11934102Abstract: There is provided a manufacturing method for a cured substance, which makes it possible to obtain a cured substance having excellent breaking elongation, a manufacturing method for a laminate, including the manufacturing method for a cured substance, a manufacturing method for a semiconductor device, including the manufacturing method for a cured substance or the manufacturing method for a laminate, and there is provided a treatment liquid that is used in the manufacturing method for a cured substance. The manufacturing method for a cured substance includes a film forming step of applying a resin composition containing a precursor of a cyclization resin onto a base material to form a film, a treatment step of bringing a treatment liquid into contact with the film, and a heating step of heating the film after the treatment step, in which the treatment liquid contains at least one compound selected from the group consisting of a basic compound having an amide group and a base generator having an amide group.Type: GrantFiled: June 20, 2023Date of Patent: March 19, 2024Assignee: FUJIFILM CorporationInventors: Atsuyasu Nozaki, Misaki Takashima, Naoki Sato, Atsushi Nakamura
-
Publication number: 20240066806Abstract: A 3D-modeling system includes a first discharge section, a second discharge section, a stage, a heating section, and a control section, wherein the control section performs a modeling process molding a first molded object and a second molded object on a modeling surface by controlling the first and second discharge sections to discharge modeling materials having different plasticization temperatures from each other from the first and second discharge sections and a heating process by controlling the heating section configured to heat the molding materials discharged from the first and second discharge sections at different temperatures from each other, and the modeling process is performed such that a period in which the modeling material discharged from the first discharge section is deposited on the modeling surface and a period in which the modeling material discharged from the second discharge section is deposited on the modeling surface overlap each other.Type: ApplicationFiled: August 25, 2023Publication date: February 29, 2024Inventors: Tatsuya TERAMOTO, Kazuhide NAKAMURA, Atsushi MAJIMA
-
Patent number: 11906387Abstract: The purpose of the present disclosure is to provide a mode field diameter test method and test device that enable acquisition of a mode field diameter for an arbitrary higher-order mode. The present disclosure is a mode field diameter test method including: a test light incidence procedure for selectively causing test light to be incident in a mode subject to measurement, on one end of an optical fiber 10 under test; a far-field pattern measurement procedure for measuring a far-field pattern of the mode subject to measurement, with respect to a divergence angle ? at the other end of the optical fiber under test, by a far-field scanning technique; and a mode field diameter calculation procedure for calculating, using an equation, a mode field diameter from information about incident mode orders in the test light incidence procedure and the far-field pattern measured in the far-field pattern measurement procedure.Type: GrantFiled: September 10, 2019Date of Patent: February 20, 2024Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Atsushi Nakamura, Daisuke Iida, Hiroyuki Oshida