Patents by Inventor Yoshihiko NAKAO
Yoshihiko NAKAO 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).
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Publication number: 20250089034Abstract: A scheduling apparatus and a scheduling method, wherein the amount of signaling for frequency resource allocation information can be reduced while maintaining system throughput performance. In a base station apparatus, a scheduling section allocates frequency resources to frequency allocation target terminals based on set frequency allocation units, and a frequency allocation parameter setting section adjusts the set frequency allocation units set in the scheduling section based on cluster numbers. Due to this, in each cluster number, frequency resources can be allocated based on the most suitable frequency allocation units with respect to the signaling bit number. As a result, the amount of signaling for frequency resource allocation information can be reduced. Further, system throughput can be maintained by making the cluster number, which is a parameter having little effect on system throughput, a setting parameter for frequency allocation units.Type: ApplicationFiled: November 21, 2024Publication date: March 13, 2025Inventors: Takashi Iwai, Sadaki FUTAGI, Daichi IMAMURA, Akihiko NISHIO, Seigo NAKAO, Yoshihiko OGAWA
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Patent number: 12219462Abstract: An integrated circuit includes circuitry, which, in operation, controls transmitting downlink data to a terminal apparatus; receiving a plurality of transport blocks which are transmitted in a same time period using a same frequency band in a spatial multiplexing scheme, wherein a same acknowledgement information (ACK/NACK) relating to an error detection result of the downlink data is scrambled with different scrambling schemes respectively for the plurality of transport blocks and the respectively scrambled ACK/NACK is multiplexed with data on respective ones of the plurality of transport blocks, and channel quality information (CQI) of a downlink channel is multiplexed with the data on only one transport block of the plurality of transport blocks by the terminal apparatus; and extracting the ACK/NACK and the CQI from the received plurality of transport blocks.Type: GrantFiled: May 23, 2023Date of Patent: February 4, 2025Assignee: Sun Patent TrustInventors: Yoshihiko Ogawa, Seigo Nakao, Akihiko Nishio, Masayuki Hoshino, Daichi Imamura, Atsushi Sumasu
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Publication number: 20250030496Abstract: A terminal apparatus includes circuitry and a transmitter. The circuitry, in operation, generates a reference signal using a cyclic shift value and an orthogonal sequence, which are associated with each other. The orthogonal sequence is one of two orthogonal sequences corresponding to a first orthogonal sequence [1, 1] and a second orthogonal sequence [1, ?1]. The cyclic shift value is one of 12 cyclic shift values ranging from 0 to 11. The transmitter, in operation, transmits the reference signal multiplexed with a data signal. Two of the cyclic shift values having a difference of 6 are respectively associated with the two orthogonal sequences.Type: ApplicationFiled: October 7, 2024Publication date: January 23, 2025Inventors: Yoshihiko OGAWA, Akihiko NISHIO, Takashi IWAI, Seigo NAKAO, Daichi IMAMURA, Atsushi SUMASU
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Patent number: 12203836Abstract: A bubble measurement device for measurement of bubbles moving in a liquid includes a measurement chamber having an image capturing surface; an image capturing device that captures an image of the bubbles passing along the image capturing surface; an introduction pipe that introduces the bubbles into the measurement chamber; a retaining tank that stores the liquid; a supply pump that draws up the liquid; a drain pipe that returns the liquid into the retaining tank; and a flow velocity adjusting mechanism that adjusts a flow velocity of the liquid passing along the image capturing surface. The flow velocity adjusting mechanism adjusts the flow velocity of the liquid passing along the image capturing surface to be within a range in which the bubbles are measurable. The range is obtained in advance in accordance with an image resolution and a shutter speed of the image capturing device.Type: GrantFiled: March 20, 2023Date of Patent: January 21, 2025Assignee: SUMITOMO METAL MINING CO., LTD.Inventor: Yoshihiko Nakao
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Patent number: 12099014Abstract: In a bubble measurement device for measuring bubbles moving in a liquid, the bubble measurement device includes a measurement chamber in which the bubbles in the liquid containing solid materials are introduced into the measurement chamber from below the measurement chamber, and providing a transparent slope facing diagonally downward at a position where the introduced bubbles rise, an image capturing device to capture an image of the bubbles passing the transparent slope, an introduction pipe provided below the measurement chamber to introduce the bubbles into the measurement chamber, and a bubble introduction valve that is immersed in the liquid to be measured and performs the introduction and blocking of the bubbles into the introduction pipe.Type: GrantFiled: August 24, 2022Date of Patent: September 24, 2024Assignee: SUMITOMO METAL MINING CO., LTD.Inventors: Yoshihiko Nakao, Shintaro Ishikawa
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Publication number: 20230228663Abstract: A bubble measurement device for measurement of bubbles moving in a liquid includes a measurement chamber having an image capturing surface; an image capturing device that captures an image of the bubbles passing along the image capturing surface; an introduction pipe that introduces the bubbles into the measurement chamber; a retaining tank that stores the liquid; a supply pump that draws up the liquid; a drain pipe that returns the liquid into the retaining tank; and a flow velocity adjusting mechanism that adjusts a flow velocity of the liquid passing along the image capturing surface. The flow velocity adjusting mechanism adjusts the flow velocity of the liquid passing along the image capturing surface to be within a range in which the bubbles are measurable. The range is obtained in advance in accordance with an image resolution and a shutter speed of the image capturing device.Type: ApplicationFiled: March 20, 2023Publication date: July 20, 2023Inventor: Yoshihiko NAKAO
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Publication number: 20230063110Abstract: Provided is a slurry treatment apparatus includes: a treatment tank for performing any treatment of a solid-liquid reaction, a solid-gas reaction, a gas-liquid reaction, and solid-liquid separation on a slurry containing a metal or a metal compound; a first pipe; a second pipe; and a pump, in which one end of the first pipe has a suction opening for sucking the slurry from the treatment tank, the other end of the first pipe is connected to a suction port of the pump, one end of the second pipe is linked to a discharge port of the pump, the other end of the second pipe is connected to a microbubble generator, and the microbubble generator includes a throttle that throttles a flow of the slurry and a gas supply tube for supplying gas to the throttle, and supplies microbubbles to the slurry in the treatment tank.Type: ApplicationFiled: February 17, 2021Publication date: March 2, 2023Applicant: SUMITOMO METAL MINING CO., LTD.Inventors: Yoshihiko Nakao, Shintaro Ishikawa
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Publication number: 20220404288Abstract: In a bubble measurement device for measuring bubbles moving in a liquid, the bubble measurement device includes a measurement chamber in which the bubbles in the liquid containing solid materials are introduced into the measurement chamber from below the measurement chamber, and providing a transparent slope facing diagonally downward at a position where the introduced bubbles rise, an image capturing device to capture an image of the bubbles passing the transparent slope, an introduction pipe provided below the measurement chamber to introduce the bubbles into the measurement chamber, and a bubble introduction valve that is immersed in the liquid to be measured and performs the introduction and blocking of the bubbles into the introduction pipe.Type: ApplicationFiled: August 24, 2022Publication date: December 22, 2022Inventors: Yoshihiko NAKAO, Shintaro ISHIKAWA
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Patent number: 11063258Abstract: A method for producing a nickel-containing hydroxide is provided that includes a particle growth step of promoting growth of nickel-containing hydroxide particles by neutralization crystallization in an aqueous solution accommodated in an agitation tank. In the particle growth step, a volume fraction of a highly supersaturated region in the aqueous solution where the molar concentration of the nickel-containing hydroxide dissolved in the aqueous solution is greater than or equal to 1.7 mol/m3 is less than 0.624% of the aqueous solution.Type: GrantFiled: June 12, 2017Date of Patent: July 13, 2021Assignee: SUMITOMO METAL MINING CO., LTD.Inventors: Shuhei Nakakura, Kazuhiko Tsuchioka, Koichiro Maki, Motoaki Saruwatari, Kazuomi Ryoshi, Yoshihiko Nakao
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Patent number: 10781531Abstract: A method for producing a nickel-containing hydroxide is provided that includes a nucleation step of generating nuclei of nickel-containing hydroxide particles by neutralization crystallization in an aqueous solution accommodated in an agitation tank. In the nucleation step, a volume fraction of a highly supersaturated region in the aqueous solution where the molar concentration of the nickel-containing hydroxide dissolved in the aqueous solution is greater than or equal to 5.0 mol/m3 is less than 0.100% of the aqueous solution.Type: GrantFiled: June 12, 2017Date of Patent: September 22, 2020Assignee: SUMITOMO METAL MINING CO., LTD.Inventors: Shuhei Nakakura, Kazuhiko Tsuchioka, Koichiro Maki, Motoaki Saruwatari, Kazuomi Ryoshi, Yoshihiko Nakao, Masafumi Yoshida
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Patent number: 10689262Abstract: A method for producing a nickel-containing hydroxide is provided that includes a particle growth step of promoting growth of nickel-containing hydroxide particles by neutralization crystallization in an aqueous solution accommodated in an agitation tank. In the particle growth step, an averaged value of the maximum accelerations of the flows of streamlines for the aqueous solution is greater than 600 m/s2.Type: GrantFiled: June 12, 2017Date of Patent: June 23, 2020Assignee: SUMITOMO METAL MINING CO., LTD.Inventors: Shuhei Nakakura, Kazuhiko Tsuchioka, Koichiro Maki, Motoaki Saruwatari, Kazuomi Ryoshi, Yoshihiko Nakao, Masafumi Yoshida
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Publication number: 20190309437Abstract: A method for producing a nickel-containing hydroxide is provided that includes a nucleation step of generating nuclei of nickel-containing hydroxide particles by neutralization crystallization in an aqueous solution accommodated in an agitation tank. In the nucleation step, a volume fraction of a highly supersaturated region in the aqueous solution where the molar concentration of the nickel-containing hydroxide dissolved in the aqueous solution is greater than or equal to 5.0 mol/m3 is less than 0.100% of the aqueous solution.Type: ApplicationFiled: June 12, 2017Publication date: October 10, 2019Inventors: Shuhei NAKAKURA, Kazuhiko TSUCHIOKA, Koichiro MAKI, Motoaki SARUWATARI, Kazuomi RYOSHI, Yoshihiko NAKAO, Masafumi YOSHIDA
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Publication number: 20190292068Abstract: A method for producing a nickel-containing hydroxide is provided that includes a particle growth step of promoting growth of nickel-containing hydroxide particles by neutralization crystallization in an aqueous solution accommodated in an agitation tank. In the particle growth step, an averaged value of the maximum accelerations of the flows of streamlines for the aqueous solution is greater than 600 m/s2.Type: ApplicationFiled: June 12, 2017Publication date: September 26, 2019Inventors: Shuhei NAKAKURA, Kazuhiko TSUCHIOKA, Koichiro MAKI, Motoaki SARUWATARI, Kazuomi RYOSHI, Yoshihiko NAKAO, Masafumi YOSHIDA
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Publication number: 20190140278Abstract: A method for producing a nickel-containing hydroxide is provided that includes a particle growth step of promoting growth of nickel-containing hydroxide particles by neutralization crystallization in an aqueous solution accommodated in an agitation tank. In the particle growth step, a volume fraction of a highly supersaturated region in the aqueous solution where the molar concentration of the nickel-containing hydroxide dissolved in the aqueous solution is greater than or equal to 1.7 mol/m3 is less than 0.624% of the aqueous solution.Type: ApplicationFiled: June 12, 2017Publication date: May 9, 2019Inventors: Shuhei NAKAKURA, Kazuhiko TSUCHIOKA, Koichiro MAKI, Motoaki SARUWATARI, Kazuomi RYOSHI, Yoshihiko NAKAO