Patents by Inventor Takehiro Fujita

Takehiro Fujita 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: 11973185
    Abstract: Provided is a method for producing a sulfide solid electrolyte having a high purity as side reaction hardly occurs, and having a high ionic conductivity, in a simplified manner. The method is for producing a sulfide solid electrolyte containing a lithium atom, a sulfur atom, a phosphorus atom and a halogen atom, comprising separately preparing a complex (1) containing a sulfide that contains a lithium atom, a sulfur atom and a phosphorus atom, as a constituent element, and a complex (2) containing a halide that contains a lithium atom and a halogen atom, as a constituent element, and mixing the complex (1) and the complex (2).
    Type: Grant
    Filed: May 6, 2021
    Date of Patent: April 30, 2024
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Naoya Masuda, Atsushi Yao, Akito Takashima, Takehiro Fujita, Yusuke Iseki
  • Publication number: 20240026086
    Abstract: To provide a material that can be easily ascertained whether antibacterial or antiviral function is imparted. In the polyphenol derivative, hydrogen atoms of some hydroxy groups or some hydrogen atoms of aromatic rings of a polyphenol are substituted by a luminescent group. In the polyphenol derivative, hydrogen atoms of some hydroxy groups or some hydrogen atoms of aromatic rings of a polyphenol may be substituted by a chain hydrocarbon group. The polyphenol derivative may be network polymerized into a polymer material.
    Type: Application
    Filed: December 17, 2021
    Publication date: January 25, 2024
    Inventors: Ryohei MATSUBARA, Takako YAMAMOTO, Jun HASEGAWA, Masanobu NAITO, Takehiro FUJITA
  • Patent number: 11804974
    Abstract: An information processing apparatus, a meeting system, and a method. The information processing apparatus registers material to be distributed to a participant of a meeting, controls an output device to output the material, acquires meeting progress information indicating progress of the meeting and additional information added by the participant to the material, and generates meeting result information that indicates meeting result based on the material, the meeting progress information, and the additional information.
    Type: Grant
    Filed: August 8, 2022
    Date of Patent: October 31, 2023
    Assignee: Ricoh Company, Ltd.
    Inventor: Takehiro Fujita
  • Publication number: 20230239050
    Abstract: An optical wavelength multiplexing transmission device includes: a demultiplexer configured to demultiplex a wavelength multiplexing signal for each wavelength band from a multiplexed signal that includes wavelength multiplexing signals in a plurality of the wavelength bands; a processor configured to detect an optical power value of each wavelength multiplexing signal for each wavelength band; calculate a compensation amount used to compensate a tilt of the wavelength multiplexing signal, by using the optical power value and a predetermined calculation expression; and compensate the tilt of the wavelength multiplexing signal, based on the compensation amount; and a multiplexer configured to multiplex each wavelength multiplexing signal compensated by the processor and output the wavelength multiplexing signal to a transmission line.
    Type: Application
    Filed: November 3, 2022
    Publication date: July 27, 2023
    Applicant: Fujitsu Limited
    Inventors: Shigeru ISHII, Tatsuya Tsuzuki, Takehiro Fujita, Tomoaki Takeyama
  • Publication number: 20230199350
    Abstract: An optical switching device including: an input unit to which multichannel light beams are redundantly input; a channel tunable optical filter that confirms, from the received multichannel light beams, whether correct input of a channel for an output destination is included; and an optical switch that outputs, to an optical transfer device which is the output destination, any one of the multichannel light beams that includes the channel which has been correctly input.
    Type: Application
    Filed: February 13, 2023
    Publication date: June 22, 2023
    Applicant: Fujitsu Limited
    Inventors: Tatsuya TSUZUKI, Shigeru ISHII, Takehiro FUJITA
  • Publication number: 20230068678
    Abstract: An information processing apparatus, a meeting system, and a method. The information processing apparatus registers material to be distributed to a participant of a meeting, controls an output device to output the material, acquires meeting progress information indicating progress of the meeting and additional information added by the participant to the material, and generates meeting result information that indicates meeting result based on the material, the meeting progress information, and the additional information.
    Type: Application
    Filed: August 8, 2022
    Publication date: March 2, 2023
    Applicant: Ricoh Company, Ltd.
    Inventor: Takehiro Fujita
  • Patent number: 11546627
    Abstract: High-quality video is provided using a small amount of coded bits. The moving picture decoding method performs inter-frame prediction processing. With the aforementioned inter-frame prediction processing, blocks with similar motion vectors from among the motion vectors in multiple blocks that have already been decoded are combined and a combined area is computed. A predicted vector for a target block to be decoded is computed using the motion vector of the aforementioned combined area, and a motion vector for the aforementioned target block is computed based on the aforementioned predicted vector and a difference vector which is included in a coded stream that is input. A predicted image is generated using the aforementioned motion vector, and a difference image which is included in the aforementioned coded stream and the aforementioned predicted image are added to generate a decoded image.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: January 3, 2023
    Assignee: Maxell, Ltd.
    Inventors: Masashi Takahashi, Muneaki Yamaguchi, Hiroaki Ito, Takehiro Fujita
  • Publication number: 20210385486
    Abstract: High-quality video is provided using a small amount of coded bits. The moving picture decoding method performs inter-frame prediction processing. With the aforementioned inter-frame prediction processing, blocks with similar motion vectors from among the motion vectors in multiple blocks that have already been decoded are combined and a combined area is computed. A predicted vector for a target block to be decoded is computed using the motion vector of the aforementioned combined area, and a motion vector for the aforementioned target block is computed based on the aforementioned predicted vector and a difference vector which is included in a coded stream that is input. A predicted image is generated using the aforementioned motion vector, and a difference image which is included in the aforementioned coded stream and the aforementioned predicted image are added to generate a decoded image.
    Type: Application
    Filed: August 24, 2021
    Publication date: December 9, 2021
    Inventors: Masashi TAKAHASHI, Muneaki YAMAGUCHI, Hiroaki ITO, Takehiro FUJITA
  • Publication number: 20210351434
    Abstract: Provided is a method for producing a sulfide solid electrolyte having a high purity as side reaction hardly occurs, and having a high ionic conductivity, in a simplified manner. The method is for producing a sulfide solid electrolyte containing a lithium atom, a sulfur atom, a phosphorus atom and a halogen atom, comprising separately preparing a complex (1) containing a sulfide that contains a lithium atom, a sulfur atom and a phosphorus atom, as a constituent element, and a complex (2) containing a halide that contains a lithium atom and a halogen atom, as a constituent element, and mixing the complex (1) and the complex (2).
    Type: Application
    Filed: May 6, 2021
    Publication date: November 11, 2021
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Naoya Masuda, Atsushi Yao, Akito Takashima, Takehiro Fujita, Yusuke Iseki
  • Patent number: 11148891
    Abstract: A sheet conveying device, which is included in an image forming apparatus, includes a pair of rotary bodies configured to convey a sheet and correct a positional deviation of the sheet, a pair of downstream side sheet conveying bodies disposed downstream from the pair of rotary bodies in a sheet conveying direction and configured to convey the sheet, and a detector configured to detect separation of the pair of rotary bodies. The pair of rotary bodies moves the sheet by moving from a home position on a sheet conveyance passage through which the sheet passes. The pair of rotary bodies moves to the home position while the pair of downstream side sheet conveying bodies is conveying the sheet, in response to detection of the separation of the pair of rotary bodies by the detector.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: October 19, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventors: Daisuke Arai, Takehiro Fujita
  • Patent number: 11134263
    Abstract: High-quality video is provided using a small amount of coded bits. The moving picture decoding method performs inter-frame prediction processing. With the aforementioned inter-frame prediction processing, blocks with similar motion vectors from among the motion vectors in multiple blocks that have already been decoded are combined and a combined area is computed. A predicted vector for a target block to be decoded is computed using the motion vector of the aforementioned combined area, and a motion vector for the aforementioned target block is computed based on the aforementioned predicted vector and a difference vector which is included in a coded stream that is input. A predicted image is generated using the aforementioned motion vector, and a difference image which is included in the aforementioned coded stream and the aforementioned predicted image are added to generate a decoded image.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: September 28, 2021
    Assignee: Maxell, Ltd.
    Inventors: Masashi Takahashi, Muneaki Yamaguchi, Hiroaki Ito, Takehiro Fujita
  • Publication number: 20200351516
    Abstract: High-quality video is provided using a small amount of coded bits. The moving picture decoding method performs inter-frame prediction processing. With the aforementioned inter-frame prediction processing, blocks with similar motion vectors from among the motion vectors in multiple blocks that have already been decoded are combined and a combined area is computed. A predicted vector for a target block to be decoded is computed using the motion vector of the aforementioned combined area, and a motion vector for the aforementioned target block is computed based on the aforementioned predicted vector and a difference vector which is included in a coded stream that is input. A predicted image is generated using the aforementioned motion vector, and a difference image which is included in the aforementioned coded stream and the aforementioned predicted image are added to generate a decoded image.
    Type: Application
    Filed: July 21, 2020
    Publication date: November 5, 2020
    Inventors: Masashi TAKAHASHI, Muneaki YAMAGUCHI, Hiroaki ITO, Takehiro FUJITA
  • Patent number: 10764599
    Abstract: High-quality video is provided using a small amount of coded bits. The moving picture decoding method performs inter-frame prediction processing. With the aforementioned inter-frame prediction processing, blocks with similar motion vectors from among the motion vectors in multiple blocks that have already been decoded are combined and a combined area is computed. A predicted vector for a target block to be decoded is computed using the motion vector of the aforementioned combined area, and a motion vector for the aforementioned target block is computed based on the aforementioned predicted vector and a difference vector which is included in a coded stream that is input. A predicted image is generated using the aforementioned motion vector, and a difference image which is included in the aforementioned coded stream and the aforementioned predicted image are added to generate a decoded image.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: September 1, 2020
    Assignee: Maxell, Ltd.
    Inventors: Masashi Takahashi, Muneaki Yamaguchi, Hiroaki Ito, Takehiro Fujita
  • Patent number: 10541749
    Abstract: A transmission apparatus includes a demultiplexer configured to demultiplex a multiplexed signal including wavelength multiplexed signals having individual wavelength bands into a wavelength multiplexed signal for each of the wavelength bands, a detector configured to detect a power value of each of the wavelength multiplexed signals for each of the wavelength bands, first compensators configured to compensate for a tilt in the wavelength multiplexed signal based on the power value for each of the wavelength bands, second compensators configured to compensate for a power of the wavelength multiplexed signal for each of the wavelength bands so as to reduce a power difference among wavelength multiplexed signals after the tilt compensation based on the power value for each of the wavelength bands, and a multiplexer configured to multiplex each of the wavelength multiplexed signals after the power compensation and output a multiplexed signal.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: January 21, 2020
    Assignee: FUJITSU LIMITED
    Inventors: Shigeru Ishii, Hiroki Oi, Takehiro Fujita, Tatsuya Tsuzuki
  • Patent number: 10513408
    Abstract: A sheet conveying device, which is included in an image forming apparatus, includes a pair of rollers configured to convey a sheet in a sheet conveyance passage, a detector configured to optically detect an attitude of the sheet, one of a rotation device to rotate the pair of rollers in a direction parallel to a plane of the sheet and a moving device to move the pair of rollers in a width direction, and a controller configured to correct the attitude of the pair of rollers at a time interval, based on a detection result obtained by the detector. The controller performs the correcting operation by setting, according to reflectance of the sheet, at least one of a light emission time of the detector, the time interval of the correcting operation, light emission intensity of the detector and a conveying speed of the sheet.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: December 24, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Shogo Nakamura, Takehiro Fujita, Tomoki Shimohira
  • Patent number: 10479638
    Abstract: A series of conveyance paths to convey a recording medium is formed across a printer and a post-processing device in a printing system. The printing system includes: a detection unit that detects that the post-processing device has entered a predetermined state; and a paper feeding control unit that limits the number of recording media fed to the conveyance path, when it is not detected that the post-processing device has entered the predetermined state, based on the number of recording media conveyable to the post-processing device after the post-processing device enters the predetermined state.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: November 19, 2019
    Assignee: RICOH COMPANY, LIMITED
    Inventor: Takehiro Fujita
  • Publication number: 20190312641
    Abstract: A transmission apparatus includes a demultiplexer configured to demultiplex a multiplexed signal including wavelength multiplexed signals having individual wavelength bands into a wavelength multiplexed signal for each of the wavelength bands, a detector configured to detect a power value of each of the wavelength multiplexed signals for each of the wavelength bands, first compensators configured to compensate for a tilt in the wavelength multiplexed signal based on the power value for each of the wavelength bands, second compensators configured to compensate for a power of the wavelength multiplexed signal for each of the wavelength bands so as to reduce a power difference among wavelength multiplexed signals after the tilt compensation based on the power value for each of the wavelength bands, and a multiplexer configured to multiplex each of the wavelength multiplexed signals after the power compensation and output a multiplexed signal.
    Type: Application
    Filed: March 19, 2019
    Publication date: October 10, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Shigeru ISHII, Hiroki Oi, Takehiro Fujita, Tatsuya Tsuzuki
  • Publication number: 20190306529
    Abstract: High-quality video is provided using a small amount of coded bits. The moving picture decoding method performs inter-frame prediction processing. With the aforementioned inter-frame prediction processing, blocks with similar motion vectors from among the motion vectors in multiple blocks that have already been decoded are combined and a combined area is computed. A predicted vector for a target block to be decoded is computed using the motion vector of the aforementioned combined area, and a motion vector for the aforementioned target block is computed based on the aforementioned predicted vector and a difference vector which is included in a coded stream that is input. A predicted image is generated using the aforementioned motion vector, and a difference image which is included in the aforementioned coded stream and the aforementioned predicted image are added to generate a decoded image.
    Type: Application
    Filed: June 20, 2019
    Publication date: October 3, 2019
    Inventors: Masashi TAKAHASHI, Muneaki YAMAGUCHI, Hiroaki ITO, Takehiro FUJITA
  • Patent number: 10382775
    Abstract: High-quality video is provided using a small amount of coded bits. The moving picture decoding method performs inter-frame prediction processing. With the aforementioned inter-frame prediction processing, blocks with similar motion vectors from among the motion vectors in multiple blocks that have already been decoded are combined and a combined area is computed. A predicted vector for a target block to be decoded is computed using the motion vector of the aforementioned combined area, and a motion vector for the aforementioned target block is computed based on the aforementioned predicted vector and a difference vector which is included in a coded stream that is input. A predicted image is generated using the aforementioned motion vector, and a difference image which is included in the aforementioned coded stream and the aforementioned predicted image are added to generate a decoded image.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: August 13, 2019
    Assignee: Maxell, Ltd.
    Inventors: Masashi Takahashi, Muneaki Yamaguchi, Hiroaki Ito, Takehiro Fujita
  • Publication number: 20190161298
    Abstract: A sheet conveying device, which is included in an image forming apparatus, includes a pair of rotary bodies configured to convey a sheet and correct a positional deviation of the sheet, a pair of downstream side sheet conveying bodies disposed downstream from the pair of rotary bodies in a sheet conveying direction and configured to convey the sheet, and a detector configured to detect separation of the pair of rotary bodies. The pair of rotary bodies moves the sheet by moving from a home position on a sheet conveyance passage through which the sheet passes. The pair of rotary bodies moves to the home position while the pair of downstream side sheet conveying bodies is conveying the sheet, in response to detection of the separation of the pair of rotary bodies by the detector.
    Type: Application
    Filed: September 25, 2018
    Publication date: May 30, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Daisuke ARAI, Takehiro FUJITA