Patents by Inventor Masanori Yokoyama

Masanori Yokoyama 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: 20240128440
    Abstract: This negative electrode for a lithium ion secondary battery is characterized by comprising a negative electrode mixture layer containing a carbon-based negative electrode active material, a Si-based negative electrode active material, and carbon nanotubes, wherein when 100 is the ratio at which the carbon nanotubes coat the surface of the Si-based negative electrode active material, the ratio at which the carbon nanotubes coat the surface of the carbon-based negative electrode active material is at least 20 but no higher than 50.
    Type: Application
    Filed: January 24, 2022
    Publication date: April 18, 2024
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Nobuhiro Hirano, Yusuke Fukumoto, Masanori Sugimori, Yuji Yokoyama
  • Publication number: 20240111241
    Abstract: Provided is a cleaning member, comprising an elastic member that includes polyurethane, wherein: when tan ? of a test piece sampled from the elastic member is measured in the temperature range of ?20° C. to +60° C., the peak temperature of a peak indicating the maximum value of tan ? is at 15.0° C. or below; the maximum value of tan ? is 0.20 to 0.55; tan ? at a temperature of 55° C. is 0.13 or larger; and where the detected quantity of all ions obtained when the test piece is heated at a rate of temperature increase of 10° C./second to 1000° C. using a direct-sampling mass spectrometer is M1 and the integrated intensity of a peak in a derived ion thermogram that corresponds to a range of m/z values originating in multifunctional isocyanate with at least three isocyanate groups is M2, M2/M1 is at least 0.001.
    Type: Application
    Filed: November 27, 2023
    Publication date: April 4, 2024
    Inventors: MASANORI YOKOYAMA, KENYA TERADA, TAKEHIKO AOYAMA, SHOTA SEGAWA, HISAO KATO, MITSUHIRO KUNIEDA, ARIHIRO YAMAMOTO
  • Patent number: 11945414
    Abstract: A vehicle windshield wiper blade comprising: a blade support portion; and a lip portion, wherein the lip portion has a tapered portion having a cross section that is taken along a direction perpendicular to the longitudinal direction of the wiper blade and that has a width that gradually decreases from a side closer to the blade support portion towards a direction farthest away from the blade support portion, the lip portion has a tip surface and first and second tapered surfaces constituting the tapered portion, and, in a specific observation region of the first and second tapered surfaces, the average value of the elastic modulus measured at a 0.1 ?m pitch is 15-470 MPa and the coefficient of variation of the elastic modulus is at most 17.6%.
    Type: Grant
    Filed: January 24, 2023
    Date of Patent: April 2, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takehiko Aoyama, Masanori Yokoyama, Syoji Inoue, Arihiro Yamamoto, Hidekazu Matsuda, Shota Segawa
  • Publication number: 20240105958
    Abstract: Provided is a carbon nanotube dispersion liquid for an electrode slurry such that it is possible to inhibit a decrease in a charge-discharge cycle characteristic. A carbon nanotube dispersion liquid for an electrode slurry according to one aspect of the present disclosure includes carbon nanotubes having a diameter of 0.4 to 2 nm, a dispersant, and a dispersion medium. In a Raman spectroscopy spectrum, the carbon nanotubes have a G/D ratio, which is the ratio of the peak intensities of the G-band (1560 to 1600 cm?1) and the D-band (1310 to 1350 cm?1), within the range of 50 to 200, and in a volume-based particle size distribution via a laser diffraction method, the carbon nanotubes have 3 to 5 peaks, and if the peaks are, from the small particle diameter side, P1, P2, . . . , Pn, the greatest frequency peak is in the range pf P2 to Pn-1.
    Type: Application
    Filed: December 6, 2021
    Publication date: March 28, 2024
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Masanori Sugimori, Yusuke Fukumoto, Yuji Yokoyama, Nobuhiro Hirano
  • Publication number: 20230334802
    Abstract: There is provided a line-of-sight reproduction system including a pseudo eyeball model generation device 10 and a display device 20, in which the pseudo eyeball model generation device 10 generates a pseudo eyeball model 30 representing a pseudo eyeball with virtual eyeball information indicating a virtual eyeball 31 and pseudo pupil information obtained by moving a position of a pseudo pupil 32 from a surface of the virtual eyeball 31 to a side of an observer in association with a degree of gaze avoidance of deviating an eye line from a viewpoint 40 of the observer, and the display device 20 renders a pseudo eyeball image representing the pseudo eyeball based on the pseudo eyeball model 30, and then renders a display image of another display element.
    Type: Application
    Filed: July 29, 2020
    Publication date: October 19, 2023
    Inventors: Motohiro Makiguchi, Masanori YOKOYAMA, Kimitaka TSUTSUMI, Takashi SATO
  • Publication number: 20230274485
    Abstract: There is provided a line-of-sight tracking system including a pseudo eyeball model generation device 10 and a display device 20, in which the pseudo eyeball model generation device 10 generates a pseudo eyeball model representing a pseudo eyeball with pseudo pupil information and virtual eyeball information indicating a virtual eyeball when a type of line-of-sight tracking is one of with tracking, excessive tracking, weak tracking, and no tracking, the pseudo pupil information being obtained by moving a position of a pseudo pupil back and forth when viewed from an observer with reference to a center of the virtual eyeball in association with the type of the line-of sight tracking and an intensity of the line-of-sight tracking, and the display device 20 displays the pseudo eyeball which is different according to a viewpoint position of the observer based on the pseudo eyeball model.
    Type: Application
    Filed: July 29, 2020
    Publication date: August 31, 2023
    Inventors: Motohiro Makiguchi, Masanori YOKOYAMA, Kimitaka TSUTSUMI, Takashi SATO
  • Publication number: 20230157492
    Abstract: A cleaning wiper blade comprises a hand grip part and an elastic part. The elastic part comprises a polyurethane. The polyurethane comprises a reactant of a composition including an isocyanate compound which includes diisocyanate and polyfunctional isocyanate, and an alcohol which includes polyfunctional alcohol. The diisocyanate has an aromatic ring in a molecule. When a molecule of the polyurethane is ionized with a mass spectrometer of a direct sample injection system, then obtained M1, M2 and M3 satisfy the is 0.013 to 0.300, and a concentration of the polyfunctional alcohol in the polyurethane is 0.12 mmol/g to 0.65 mmol/g.
    Type: Application
    Filed: January 24, 2023
    Publication date: May 25, 2023
    Inventors: SHOTA SEGAWA, TAKEHIKO AOYAMA, MASANORI YOKOYAMA, HIDEKAZU MATSUDA, SYOJI INOUE, ARIHIRO YAMAMOTO
  • Publication number: 20230157493
    Abstract: A wiper blade comprising: a hand grip portion; and an elastic portion supported by the hand grip portion and that is pressed against a surface to be cleaned; the elastic portion having, on a tip side, a main surface opposing a member to be cleaned, and a tip surface that forms a tip side edge together with the main surface, and in a specific observation region of the tip surface and the main surface, the average value of elastic modulus values obtained through measurement at a 0.1 ?m pitch being 15 MPa to 470 MPa, and the coefficient of variation of the elastic modulus being 17.6% or less.
    Type: Application
    Filed: January 24, 2023
    Publication date: May 25, 2023
    Inventors: TAKEHIKO AOYAMA, HIDEKAZU MATSUDA, SYOJI INOUE, ARIHIRO YAMAMOTO, MASANORI YOKOYAMA, SHOTA SEGAWA
  • Publication number: 20230159692
    Abstract: A vehicle wiper blade comprises a blade support part and a lip part coupled swingably with the blade support part via a neck. The lip part comprises polyurethane. The polyurethane comprises a reactant of a composition including an isocyanate compound which includes diisocyanate and tri- or higher functional polyfunctional isocyanate, and an alcohol which includes tri- or higher functional polyfunctional alcohol. The diisocyanate has an aromatic ring in a molecule. When a molecule of the polyurethane is ionized with a mass spectrometer of a direct sample injection system, then obtained M1, M2 and M3 satisfy the following relation: M2/M1 is 0.001 to 0.028, M3/M1 is 0.020 to 0.110, and M2/M3 is 0.013 to 0.300, and a concentration of the polyfunctional alcohol in the polyurethane is 0.12 mmol/g to 0.65 mmol/g.
    Type: Application
    Filed: January 24, 2023
    Publication date: May 25, 2023
    Inventors: SHOTA SEGAWA, TAKEHIKO AOYAMA, MASANORI YOKOYAMA, HIDEKAZU MATSUDA, SYOJI INOUE, ARIHIRO YAMAMOTO, YOUHEI IKEDA
  • Publication number: 20230159001
    Abstract: A vehicle windshield wiper blade comprising: a blade support portion; and a lip portion, wherein the lip portion has a tapered portion having a cross section that is taken along a direction perpendicular to the longitudinal direction of the wiper blade and that has a width that gradually decreases from a side closer to the blade support portion towards a direction farthest away from the blade support portion, the lip portion has a tip surface and first and second tapered surfaces constituting the tapered portion, and, in a specific observation region of the first and second tapered surfaces, the average value of the elastic modulus measured at a 0.1 ?m pitch is 15-470 MPa and the coefficient of variation of the elastic modulus is at most 17.6%.
    Type: Application
    Filed: January 24, 2023
    Publication date: May 25, 2023
    Inventors: TAKEHIKO AOYAMA, MASANORI YOKOYAMA, SYOJI INOUE, ARIHIRO YAMAMOTO, HIDEKAZU MATSUDA, SHOTA SEGAWA
  • Patent number: 11630411
    Abstract: The present invention is aimed at providing an electrophotographic cleaning blade that has excellent chipping resistance and can exhibit excellent cleaning performance. This cleaning blade is provided with an elastic member that includes a polyurethane and a support member that supports the elastic member, and cleans the surface of a member to be cleaned that is moving, by bringing a part of the elastic member into contact with the surface of the member to be cleaned. The average value of the elastic modulus of the elastic member obtained when measured using SPM is at least 15 MPa and not more than 470 MPa, and the coefficient of variation thereof is not more than 6.0%.
    Type: Grant
    Filed: May 27, 2022
    Date of Patent: April 18, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Arihiro Yamamoto, Syoji Inoue, Masahiro Watanabe, Toshirou Uchida, Youhei Ikeda, Masanori Yokoyama, Hisao Kato, Saki Sudo, Tomoya Kawakami, Masaaki Kimura
  • Publication number: 20220291622
    Abstract: The present invention is aimed at providing an electrophotographic cleaning blade that has excellent chipping resistance and can exhibit excellent cleaning performance. This cleaning blade is provided with an elastic member that comprises a polyurethane and a support member that supports the elastic member, and cleans the surface of a member to be cleaned that is moving, by bringing a part of the elastic member into contact with the surface of the member to be cleaned. The average value of the elastic modulus of the elastic member obtained when measured using SPM is at least 15 MPa and not more than 470 MPa, and the coefficient of variation thereof is not more than 6.0%.
    Type: Application
    Filed: May 27, 2022
    Publication date: September 15, 2022
    Inventors: Arihiro Yamamoto, Syoji Inoue, Masahiro Watanabe, Toshirou Uchida, Youhei Ikeda, Masanori Yokoyama, Hisao Kato, Saki Sudo, Tomoya Kawakami, Masaaki Kimura
  • Publication number: 20180283496
    Abstract: Provided are a chain component that has a simple surface treatment structure and can maintain favorable wear resistance over a long time, and a chain that includes this chain component and maintains favorable wear elongation resistance. The chain component of a power transmission chain for industrial use includes a chromium nitride layer containing more than 0 mass % but not more than 55 mass % iron and formed on an outer side of a steel base material.
    Type: Application
    Filed: March 27, 2018
    Publication date: October 4, 2018
    Applicant: TSUBAKIMOTO CHAIN CO.
    Inventors: Misa Asada, Takashi Kawata, Tomoaki Nakayasu, Kota Yoshimoto, Nobuhiro Uchida, Masanori Yokoyama
  • Patent number: 9739344
    Abstract: An object of the present invention is to provide a chain that reduces warping of connecting pins and prevents local wear in the bushings and connecting pins without causing an increase in the chain weight. Provided is a chain 10 including a plurality of inner links 20 formed by inner plates 30 and bushings 40, and a plurality of outer links 50 formed by outer plates 60 and connecting pins 70, wherein the plate height of each of the inner plates 30 as measured along an imaginary line L1 passing through the center of a bushing hole 31 and extending in a chain height direction is larger than a chain pitch P.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: August 22, 2017
    Assignee: TSUBAKIMOTO CHAIN CO.
    Inventor: Masanori Yokoyama
  • Patent number: 9534662
    Abstract: An object of the present invention is to provide a chain that employs simple structures so as to establish contact surface pressures in accordance with various conditions of use, for the purpose of reducing frictional loss and preventing wear or damage to a chain guide member, as well as reducing order-related noise. The chain 100 is formed by inner links 101 and outer links 102 alternately and pivotably coupled together in a longitudinal direction of the chain. The plurality of inner plates 110 include an asymmetrical inner plate 110x having different edge shapes on upper and lower sides in a height direction of the chain.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: January 3, 2017
    Assignee: TSUBAKIMOTO CHAIN CO.
    Inventor: Masanori Yokoyama
  • Patent number: 9506537
    Abstract: A chain transmission is provided which is capable of reducing friction loss in the transmission of power without the risk of compromising the durability of a chain guide mechanism and the chain. The chain transmission includes a chain and a chain guide mechanism. The chain guide mechanism includes a first guide and a second guide having a smaller radius of curvature than that of the first guide. The plurality of plates include a first plate and a second plate. The first plate has a backside height set such that the first plate does not contact the first guide when the first plate is guided by the first guide and such that the first plate contacts the second guide when the first plate is guided by the second guide.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: November 29, 2016
    Assignee: TSUBAKIMOTO CHAIN CO.
    Inventors: Yuji Kurematsu, Masanori Yokoyama
  • Patent number: 9500271
    Abstract: Provided are a sprocket and a chain transmission mechanism configured such that noise and vibrations caused by the elongation of the chain and also wear of parts are reduced, the decrease in the meshing strength of the chain and the sprocket is inhibited, and the chain service life is extended. The sprocket and chain transmission mechanism each have bottom land portion arcs of a predetermined radius and a predetermined angular range between a plurality of teeth to be meshed with the chain. The radius of each of the bottom land portion arcs satisfies the following relationship with the diameter of a roller or a bush of the meshing chain: Rb>0.505*?r+0.069*?r1/3 (where Rb is the bottom land portion arc radius, and ?r is the diameter of the roller or the bush of the meshing chain).
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: November 22, 2016
    Assignee: TSUBAKIMOTO CHAIN CO.
    Inventors: Masanori Yokoyama, Tsuyoshi Kabai
  • Publication number: 20160116022
    Abstract: An object of the present invention is to provide a chain that employs simple structures so as to establish contact surface pressures in accordance with various conditions of use, for the purpose of reducing frictional loss and preventing wear or damage to a chain guide member, as well as reducing order-related noise. The chain 100 is formed by inner links 101 and outer links 102 alternately and pivotably coupled together in a longitudinal direction of the chain. The plurality of inner plates 110 include an asymmetrical inner plate 110x having different edge shapes on upper and lower sides in a height direction of the chain.
    Type: Application
    Filed: October 20, 2015
    Publication date: April 28, 2016
    Applicant: TSUBAKIMOTO CHAIN CO.
    Inventor: Masanori Yokoyama
  • Publication number: 20160108990
    Abstract: An object of the present invention is to provide a chain that reduces warping of connecting pins and prevents local wear in the bushings and connecting pins without causing an increase in the chain weight. Provided is a chain 10 including a plurality of inner links 20 formed by inner plates 30 and bushings 40, and a plurality of outer links 50 formed by outer plates 60 and connecting pins 70, wherein the plate height of each of the inner plates 30 as measured along an imaginary line L1 passing through the center of a bushing hole 31 and extending in a chain height direction is larger than a chain pitch P.
    Type: Application
    Filed: September 10, 2015
    Publication date: April 21, 2016
    Applicant: TSUBAKIMOTO CHAIN CO.
    Inventor: Masanori Yokoyama
  • Patent number: 9243684
    Abstract: A chain is provided, whose strength is increased and whose power loss is reduced as a result of reduced friction resistance between link units and link plates. A pair of link plates 160 are pivotally coupled to a link unit 101 in the chain 100. A pair of connecting pin portions 110 and a pair of plate portions 140 are inseparably joined at joint parts 150 to form one link unit 101. A stopper portion 123 is provided to the connecting pin portion 110 between a plate portion 140 and a link plate 160 adjacent each other in the width direction to restrict the link plate 160 from coming closer to the plate portion 140.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: January 26, 2016
    Assignee: TSUBAKIMOTO CHAIN CO.
    Inventor: Masanori Yokoyama