Patents by Inventor Keisuke Tanaka

Keisuke Tanaka 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: 20180278265
    Abstract: A signal processing device is provided, which includes a pulse compressing module configured to generate a pulse compressed signal obtained by performing pulse compression on a reception signal that is a reflection of a transmission signal transmitted to outside the device, a pseudo signal generating module configured to generate, based on the reception signal, a pseudo signal of which a pseudo main lobe portion corresponding to a main lobe of the pulse compressed signal has a lower signal level than signal levels of pseudo side lobe portions corresponding to side lobes of the pulse compressed signal, and a side lobe removing module configured to remove the pseudo signal from the pulse compressed signal.
    Type: Application
    Filed: March 20, 2018
    Publication date: September 27, 2018
    Applicant: FURUNO ELECTRIC CO., LTD.
    Inventors: Keisuke TANAKA, Eikoh GOTOH
  • Publication number: 20180275247
    Abstract: A radar control device is provided, which includes a signal generating module configured to generate a transmission pattern signal comprised of at least one kind of pulse signal that is set among pulse signals including first and second pulse signals, a transmitter configured to externally transmit the transmission pattern signal via a radar antenna, a detector configured to detect transmission power of each pulse signal included in the transmission pattern signal, and a processing circuit configured to control, when the transmission pattern signal includes the second pulse signal, the transmission power of the transmission pattern signal by using a control value calculated based on the transmission power of the second pulse signal, and control, when the transmission pattern signal consists of the first signal, the transmission power of the first pulse signal by using a control value previously used for controlling the transmission power of the second pulse signal.
    Type: Application
    Filed: March 20, 2018
    Publication date: September 27, 2018
    Applicant: FURUNO ELECTRIC CO., LTD.
    Inventor: Keisuke TANAKA
  • Publication number: 20180246432
    Abstract: Provided is toner that contains a toner particle, and an external additive containing a strontium titanate particle, wherein the toner has an average circularity of at least 0.935 and not more than 0.995, the strontium titanate particle has a number-average primary particle diameter of at least 10 nm and not more than 60 nm, the strontium titanate particle has a peak in the range of 39.700°±0.150° and a peak in the range of 46.200°±0.150° in a CuK? x-ray diffraction spectrum obtained in the 2? range of at least 10° and not more than 90° where ? is the Bragg angle, and the ratio of the area Sb of the peak at 46.200°±0.150° to the area Sa of the peak at 39.700°±0.150° is at least 1.80 and not more than 2.30.
    Type: Application
    Filed: February 21, 2018
    Publication date: August 30, 2018
    Inventors: Koji Nishikawa, Yojiro Hotta, Kazuo Terauchi, Takaaki Furui, Ryo Nagata, Keisuke Tanaka, Kazuyuki Sato, Yu Yoshida, Yusuke Kosaki, Masami Fujimoto
  • Publication number: 20180246430
    Abstract: A toner including a toner particle and an external additive, wherein the external additive contains an inorganic fine particle A and a silica fine particle; in a surface of the toner observed using a scanning electron microscope, a number-average particle diameter of primary particle of the silica fine particle is from 5 nm to 50 nm, a number-average particle diameter of primary particle of the inorganic fine particle A is at least 10 nm and less than 60 nm, a coverage ratio X1 of the toner surface covered by the silica fine particle is from 60 area % to 95 area %, the inorganic fine particle A is a fine particle of a titanate having a Group 2 element, and a coverage ratio X2 of the toner surface covered by the inorganic fine particle A is from 5 area % to 40 area %.
    Type: Application
    Filed: February 23, 2018
    Publication date: August 30, 2018
    Inventors: Keisuke Tanaka, Yojiro Hotta, Kazuo Terauchi, Koji Nishikawa, Takaaki Furui, Ryo Nagata, Kazuyuki Sato, Yu Yoshida, Yusuke Kosaki, Masami Fujimoto
  • Patent number: 10055289
    Abstract: In one embodiment, a system includes a controller and logic integrated with and/or executable by the controller. The logic is configured to cause data to be written to a first write section of a magnetic medium as a plurality of first codeword sets, and cause at least some of the data to be written to a rewrite section of the magnetic medium as one or more rewritten codeword sets. A length of at least one rewritten row stored to the rewrite section of the magnetic medium is greater than either a length of another rewritten row in the same rewritten codeword set and/or a length of at least one row in a codeword set stored to the first write section of the magnetic medium.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: August 21, 2018
    Assignee: International Business Machines Corporation
    Inventors: Roy D. Cideciyan, Simeon Furrer, Robert A. Hutchins, Keisuke Tanaka
  • Patent number: 10047353
    Abstract: Recombinant collagenases with a stable specific activity and enzyme agents for cell and tissue dissociation such a recombinant are provided. The recombinant collagenase is derived from Grimontia hollisae-derived collagenase is characterized by having, from the N terminus to the C terminus, a collagenase catalytic domain, a linker region sequence, and a prepeptidase C terminal domain, which Grimontia hollisae-derived recombinant collagenase does not comprise at least the prepeptidase C terminal domain. The obtained recombinant collagenase has a high and stable specific activity.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: August 14, 2018
    Assignees: Nippi, Incorporated, The University of Tokyo
    Inventors: Naoko Teramura, Katsumasa Iijima, Osamu Hayashida, Keisuke Tanaka, Shunji Hattori, Teru Okitsu, Shoji Takeuchi
  • Publication number: 20180225360
    Abstract: A system and method for recommending content to a user. In embodiments of the system and method, one or more content groups is generated, at least one of the content groups including more than one type of content, and a display indicative of the one or more content groups is presented to the user.
    Type: Application
    Filed: April 5, 2018
    Publication date: August 9, 2018
    Applicant: Sony Corporation
    Inventors: Keisuke Tanaka, Hiroshi Nagatani, Hirotaka Takahashi, Tatsuo Kuroiwa
  • Patent number: 10012919
    Abstract: A toner comprising a toner particle containing a binder resin, a colorant, an amorphous polyester, and a crystalline polyester, wherein the binder resin contains a vinyl resin; the amorphous polyester has a monomer unit derived from a linear aliphatic dicarboxylic acid having 6 to 12 carbons, and a monomer unit derived from a dialcohol; the content of the monomer unit derived from a linear aliphatic dicarboxylic acid having 6 to 12 carbons is 10 to 50 mol % with reference to the total monomer units derived from a carboxylic acid in the amorphous polyester; and in a cross section of the toner particle, the vinyl resin constitutes a matrix and the amorphous polyester constitutes domains, and the crystalline polyester is present in the interior of the domains.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: July 3, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takashi Matsui, Yuujirou Nagashima, Keisuke Tanaka, Shohei Tsuda, Naoki Okamoto
  • Publication number: 20180140742
    Abstract: 1) A graft material for nerve regeneration characterizing by comprising collagen-based materials containing collagen having an orientation. 2) A method for producing a graft material for nerve regeneration comprising a step of immersing the collagen-based materials containing collagen having an orientation in a solution containing a collagen-binding site-containing growth factor comprising a receptor agonist peptide and a collagen-binding peptide and binding the collagen-binding site-containing growth factor to the collagen. 3) A kit for producing a graft material for nerve regeneration characterized by comprising collagen-based materials containing collagen having an orientation, and a collagen-binding site-containing growth factor comprising a receptor agonist peptide and a collagen-binding peptide.
    Type: Application
    Filed: October 16, 2015
    Publication date: May 24, 2018
    Inventors: Kentaro UCHIDA, Gen INOUE, Hisako FUJIMAKI, Masashi TAKASO, Taro SAKU, Yoshihiro ISOBE, Osamu MATSUSHITA, Takehiko MIMA, Nozomu NISHI, Shunji HATTORI, Keisuke TANAKA, Takayuki OGURA
  • Patent number: 9971262
    Abstract: A magnetic toner containing a magnetic toner particle having a binder resin and a magnetic body, and inorganic fine particles, wherein when the inorganic fine particles are classified as first inorganic fine particles, second inorganic fine particles, and third inorganic fine particles in accordance with fixing strength thereof to the magnetic toner particle and in the sequence of the weakness of the fixing strength, the content of the first inorganic fine particles, the ratio of the second inorganic fine particles to the first inorganic fine particles, and the coverage ratio X of coverage of the magnetic toner surface by the third inorganic fine particles are in prescribed ranges.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: May 15, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yusuke Hasegawa, Tomohisa Sano, Shuichi Hiroko, Yoshitaka Suzumura, Keisuke Tanaka
  • Patent number: 9971264
    Abstract: The magnetic toner contains a magnetic toner particle having a binder resin and a magnetic body, and inorganic fine particles, wherein the average circularity of the magnetic toner is at least 0.955 and, when classifying the inorganic fine particles, in accordance with the fixing strength thereof to the magnetic toner particle and in the sequence of the weakness of the fixing strength, as first inorganic fine particles, second inorganic fine particles, and third inorganic fine particles, the content of the first inorganic fine particles, the ratio of the second inorganic fine particles to the first inorganic fine particles, and the coverage ratio X are in prescribed ranges.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: May 15, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Tomohisa Sano, Yusuke Hasegawa, Shuichi Hiroko, Yoshitaka Suzumura, Keisuke Tanaka
  • Patent number: 9928853
    Abstract: According to one embodiment, a system for processing data includes a controller configured to determine whether a position error signal (PES) is invalid while reading data from a magnetic medium using at least one data channel. The controller is also configured to determine whether a PES value is above a first predetermined threshold in response to a determination that the PES is valid. Moreover, the controller is configured to inject error bits into a data stream in place of corresponding bits of decoded data in response to a determination that the PES is invalid and in response to a determination that the PES value is above the first predetermined threshold. Other systems and methods for processing data are described in accordance with more embodiments.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: March 27, 2018
    Assignee: International Business Machines Corporation
    Inventors: Nhan X. Bui, Setsuko Masuda, Keisuke Tanaka, Kazuhiro Tsuruta
  • Publication number: 20180082705
    Abstract: According to one embodiment, a system includes a controller configured to determine whether a position error signal (PES) is invalid while reading data from a magnetic medium using at least one data channel. An invalid PES indicates off-track reading or a defect in the magnetic medium. The controller is also configured to determine whether a PES value is above a first predetermined threshold in response to a determination that the PES is valid. Moreover, the controller is configured to inject error bits into a data stream in place of corresponding bits of decoded data in response to a determination that the PES is invalid, a determination that the PES value is above the first predetermined threshold, or a determination that the PES is invalid and the PES value is above the first predetermined threshold. Other systems and methods are described in accordance with more embodiments.
    Type: Application
    Filed: November 28, 2017
    Publication date: March 22, 2018
    Inventors: Nhan X. Bui, Setsuko Masuda, Keisuke Tanaka, Kazuhiro Tsuruta
  • Patent number: 9904195
    Abstract: A toner comprising: a toner particle containing a binder resin and a colorant, and an inorganic fine particle A and B present on the surface of the toner particle, wherein the inorganic fine particle A is a silica fine particle having a number-average particle diameter (D1) of primary particles in a specific range, the inorganic fine particle B has a number-average particle diameter (D1) of primary particles in a specific range, and is at least one fine particle selected from a group consisting of a silica fine particle, a titanium oxide fine particle, and an alumina fine particle, A total fixing ratio of the inorganic fine particle A and B is 75% or more, and an inter-particle force Fp(A) and an inter-particle force Fp(B) are within specific numerical ranges and satisfy a specific relationship.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: February 27, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takashi Matsui, Naoki Okamoto, Satoshi Arimura, Keisuke Tanaka, Shohei Tsuda
  • Publication number: 20180053527
    Abstract: In one embodiment, an apparatus includes a controller and logic integrated with and/or executable by the controller. The logic is configured to perform track-dependent erasure decoding on encoded data based on detection of one or more time-varying signal quality issues associated with at least one of a plurality of tracks read simultaneously from a data storage medium. In another embodiment, a method includes determining, by a magnetic tape drive, track signal quality reliability for a plurality of tracks read simultaneously from a magnetic tape medium. In addition, the method includes performing, by the magnetic tape drive, track-dependent erasure decoding on encoded data based on detection of one or more time-varying signal quality issues associated with at least one of the plurality of simultaneously-read tracks.
    Type: Application
    Filed: October 16, 2017
    Publication date: February 22, 2018
    Inventors: Steven R. Bentley, Roy D. Cideciyan, Simeon Furrer, Keisuke Tanaka
  • Publication number: 20180004109
    Abstract: A toner having a toner particle containing a binder resin, an amorphous polyester, and a colorant, wherein a softening point of the toner is at least 110° C. and not more than 140° C.; an integrated value f1 for stress of the toner is not more than 10 g·m/sec, as measured using a tack tester, with a temperature for a probe end being 150° C. and a press holding time being 0.01 seconds; and an integrated value f2 for stress of the toner is at least 30 g·m/sec, as measured using a tack tester, with a temperature for a probe end being 150° C. and a press holding time being 0.1 seconds.
    Type: Application
    Filed: June 23, 2017
    Publication date: January 4, 2018
    Inventors: Takashi Matsui, Naoki Okamoto, Yuujirou Nagashima, Keisuke Tanaka, Shohei Tsuda, Kosuke Fukudome, Takuya Mizuguchi
  • Publication number: 20180004106
    Abstract: A toner comprising a toner particle containing a binder resin, a colorant, an amorphous polyester, and a crystalline polyester, wherein the binder resin contains a vinyl resin; the amorphous polyester has a monomer unit derived from a linear aliphatic dicarboxylic acid having 6 to 12 carbons, and a monomer unit derived from a dialcohol; the content of the monomer unit derived from a linear aliphatic dicarboxylic acid having 6 to 12 carbons is 10 to 50 mol % with reference to the total monomer units derived from a carboxylic acid in the amorphous polyester; and in a cross section of the toner particle, the vinyl resin constitutes a matrix and the amorphous polyester constitutes domains, and the crystalline polyester is present in the interior of the domains.
    Type: Application
    Filed: June 23, 2017
    Publication date: January 4, 2018
    Inventors: Takashi Matsui, Yuujirou Nagashima, Keisuke Tanaka, Shohei Tsuda, Naoki Okamoto
  • Publication number: 20180004108
    Abstract: Provided is a toner comprising a toner particle including a binder resin, an amorphous polyester, and a colorant, wherein the binder resin includes a vinyl resin, the toner has a softening point of at least 110° C. and not more than 140° C., an amount of the amorphous polyester is at least 4.0 parts by mass and not more than 30.0 parts by mass with respect to 100 parts by mass of the binder resin, and a temperature T at which an area increasing rate of one toner particle sample becomes 1.40, is not more than 110° C., and a slope of the area increasing rate with respect to a temperature in the range of the area increasing rate of 1.40 to 2.00 is not more than 0.07.
    Type: Application
    Filed: June 22, 2017
    Publication date: January 4, 2018
    Inventors: Shohei Tsuda, Naoki Okamoto, Takashi Matsui, Yuujirou Nagashima, Keisuke Tanaka
  • Patent number: 9857707
    Abstract: Provided is a toner, including: a toner particle containing a binder resin and a colorant; and an inorganic fine particle, in which the toner particle has an average circularity of 0.960 or more, and in which the toner satisfies the formula (1) and the formula (2). Fp(A)?25.0 nN??Formula (1) (Fp(B)?Fp(A))/Fp(A)?0.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: January 2, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shohei Tsuda, Takashi Matsui, Satoshi Arimura, Kozue Uratani, Keisuke Tanaka, Naoki Okamoto
  • Patent number: D805338
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: December 19, 2017
    Assignee: ITOKI CORPORATION
    Inventors: Yasuhiro Nakamura, Keisuke Tanaka, Yoshihiro Matsuzawa, Minoru Hashimoto