Patents by Inventor Seiji Yamaguchi

Seiji Yamaguchi 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: 11930309
    Abstract: A photonics-electronics convergence switch with which, even if an optical network system is built by combining a plurality of packet switches, the amount of processing in the packet switches does not increase, the optical network system operates with low electric power consumption, and this enables wide-range optical communication between the nodes of a communication origin and of a communication partner, includes a network processor that is an electronic circuit configured to control the functions of the packet switch, a plurality of optical transmitter-receivers having photoelectric conversion functions, and a plurality of optical switches.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: March 12, 2024
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Keita Yamaguchi, Osamu Moriwaki, Shunichi Soma, Kenya Suzuki, Seiki Kuwabara, Tetsuro Inui, Shuto Yamamoto, Seiji Okamoto, Hideki Nishizawa
  • Patent number: 11921389
    Abstract: A display device includes a display section in which a plurality of pixels are arrayed in a matrix, a plurality of scan lines which select pixels, a plurality of signal lines which supply image signals to the selected pixels, and color filters that are arranged so as to correspond to color displays of the pixels. In the device, the display section includes an effective pixel portion and a frame portion that surrounds the effective pixel portion, and the frame portion and a wiring circuit of the effective pixel portion are covered with light-shielding layers, the light-shielding layers being separated from each other at a certain separation location in the display section, and a plurality of color filters having different colors are arranged by being stacked at the separation location.
    Type: Grant
    Filed: October 27, 2022
    Date of Patent: March 5, 2024
    Assignee: Japan Display Inc.
    Inventors: Kenta Seki, Seiji Uejima, Ryo Yamaoka, Hidemasa Yamaguchi
  • Patent number: 11915070
    Abstract: An object of the present disclosure is to implement, at a low cost, highly accurate color calibration in a printing apparatus that performs printing using fluorescent ink. One embodiment of the present invention is an image processing apparatus that includes: a processing unit configured to perform processing relating to color calibration in a printing apparatus that prints an image on a printing medium using fluorescent printing material; and an execution unit configured to perform calibration processing of the printing apparatus based on a measured value that is obtained by measuring a patch chart for obtaining information on an amount of application of the fluorescent printing material in the printing apparatus, wherein a patch included in the patch chart is printed with the fluorescent printing material and subtractive color mixture printing material and at least one dot of the subtractive color mixture printing material covers a dot of the fluorescent printing material.
    Type: Grant
    Filed: February 4, 2022
    Date of Patent: February 27, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Seiji Abe, Naoko Baba, Kouta Murasawa, Hiromitsu Yamaguchi, Keiji Kuriyama, Yuki Igarashi, Hiroshi Mori
  • Patent number: 11884553
    Abstract: This magnesium oxide powder contains secondary particles in which a plurality of primary particles of magnesium oxide having a crystal phase and a grain boundary phase are at least partially fused together by the grain boundary phase, and a median diameter obtained by a laser diffraction scattering method is 300 ?m or less.
    Type: Grant
    Filed: December 1, 2021
    Date of Patent: January 30, 2024
    Assignee: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Isamu Fujikawa, Masamichi Nakagawa, Takashi Hamaoka, Takeshi Himoto, Seiji Yamaguchi, Kunio Watanabe
  • Publication number: 20230274905
    Abstract: Disclosed is a method with which it is possible to observe a biological sample in a living state, without significant restrictions due to the properties of the sample or due to a structural body accommodating the sample. To observe a target sample on a sample stage using a SEM including a radiation source for electron beam irradiation, the method includes: a step of bringing an insulating and electron-permeable thin film into contact with the target sample in such a way as to follow a surface on the radiation source side of the target sample, and sealing the target sample in a gap between the film and the sample stage; and a step of radiating an electron beam onto the target sample from the radiation source through the film.
    Type: Application
    Filed: June 14, 2021
    Publication date: August 31, 2023
    Applicant: CHUBU UNIVERSITY EDUCATIONAL FOUNDATION
    Inventors: Seine Shintani, Seiji Yamaguchi, Hiroaki Takadama
  • Publication number: 20230192504
    Abstract: This magnesium oxide powder contains secondary particles in which a plurality of primary particles of magnesium oxide having a crystal phase and a grain boundary phase are at least partially fused together by the grain boundary phase, and a median diameter obtained by a laser diffraction scattering method is 300 µm or less.
    Type: Application
    Filed: December 1, 2021
    Publication date: June 22, 2023
    Applicant: Ube Material Industries, Ltd.
    Inventors: Isamu Fujikawa, Masamichi Nakagawa, Takashi Hamaoka, Takeshi Himoto, Seiji Yamaguchi, Kunio Watanabe
  • Patent number: 11576997
    Abstract: A highly safe and inexpensive bone repair material that stably exhibits high antibacterial activity for a long time in a living body by supporting a large amount of an iodine ion and is excellent in apatite forming ability and preservability. The material includes a substrate made of titanium or titanium alloy and a titanate film on a surface of the substrate, the film composed of a large number of crystalline masses having a crystal structure and containing a calcium ion and an iodine ion, wherein the mass contains layers having a Ti—O skeleton and the calcium and the iodine ions adsorbed between the layers.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: February 14, 2023
    Assignee: CHUBU UNIVERSITY EDUCATIONAL FOUNDATION
    Inventors: Seiji Yamaguchi, Morihiro Ito, Takashi Nakamura
  • Publication number: 20220243292
    Abstract: The present invention provides a method of manufacturing leather, which not only significantly suppresses the occurrence of adhesive wrinkling and boarding/alighting wrinkling when used for an automobile seat, for example, but also exhibits appropriate flexibility.
    Type: Application
    Filed: December 24, 2020
    Publication date: August 4, 2022
    Inventors: Tatsuaki UJIIE, Yasumitsu SUZUKI, Haruki OURA, Seiji YAMAGUCHI, Yoshio YAMADA
  • Patent number: 11111391
    Abstract: Coated magnesium oxide particles having high filling efficiency and high mass-productivity and suitable for a thermal conductive filler are provided, the coated magnesium oxide particles being coated magnesium oxide particles in which the surface of magnesium oxide particles is coated with at least one of a fatty acid and a fatty acid metal salt, and wherein X in relation to particles is defined as X=[a BET specific surface area diameter calculated from a BET specific surface area of the particles]÷[D50 of the particles], provided that D50 is a particle diameter at 50% accumulation in a cumulative particle size distribution of the particles, the magnesium oxide particles having X of less than 0.2 and D50 of 5 to 100 ?m, and the coated magnesium oxide particles having X of 0.2 or more, D50 of 5 to 100 ?m, and oil absorption of less than 25 mL/100 g.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: September 7, 2021
    Inventors: Naoto Nishida, Koji Nakamura, Seiji Yamaguchi
  • Publication number: 20210069383
    Abstract: The present invention addresses a problem of providing a three-dimensional structure having bioactivity in which a coating film includes a titanium alkoxide hydrolysis product is coated with high adhesion strength on the surface of a three-dimensional structure main body, and also providing a method for producing such three-dimensional structure. The three-dimensional structure having bioactivity includes a three-dimensional structure main body having a concave section and/or a convex section on a surface, and having a coating film on the surface of the three-dimensional structure main body, and the coating film that includes a titanium alkoxide hydrolysis product a thickness of 10 nm to 200 nm. No cracks or peelings of the coating film can be recognized when the surface of the three-dimensional structure is observed with a scanning electron microscope at a magnification of 300, and the coating film has bioactivity when evaluated under conditions specified in ISO 23317.
    Type: Application
    Filed: July 6, 2018
    Publication date: March 11, 2021
    Applicants: CHUBU UNIVERSITY EDUCATIONAL FOUNDATION, ISHIHARA SANGYO KAISHA, LTD.
    Inventors: Seiji Yamaguchi, Seiji Kaji
  • Publication number: 20210001004
    Abstract: A highly safe and inexpensive bone repair material that stably exhibits high antibacterial activity for a long time in a living body by supporting a large amount of an iodine ion and is excellent in apatite forming ability and preservability. The material includes a substrate made of titanium or titanium alloy and a titanate film on a surface of the substrate, the film composed of a large number of crystalline masses having a crystal structure and containing a calcium ion and an iodine ion, wherein the mass contains layers having a Ti—O skeleton and the calcium and the iodine ions adsorbed between the layers.
    Type: Application
    Filed: March 1, 2019
    Publication date: January 7, 2021
    Applicant: CHUBU UNIVERSITY EDUCATIONAL FOUNDATION
    Inventors: Seiji Yamaguchi, Morihiro Ito, Takashi Nakamura
  • Patent number: 10566511
    Abstract: A light-emitting device includes a circuit board including a wiring on a surface of a substrate, the wiring including a raised portion, and a light-emitting element mounted on the raised portion. When the light-emitting element is of a flip-chip type, an element electrode thereof is connected to the raised portion such that an edge of the element electrode on an outer periphery side of the light-emitting element is located outside of the raised portion in a top view and an exposed portion of the element electrode is covered with a white or transparent resin. When the light-emitting element is of a face-up type, an element substrate thereof is bonded to the raised portion such that the raised portion is located inside the element substrate in the top view and an exposed portion of a bottom surface of the element substrate is covered with a white resin.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: February 18, 2020
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Takayoshi Yajima, Hiroshi Ito, Seiji Yamaguchi
  • Publication number: 20200017692
    Abstract: Coated magnesium oxide particles having high filling efficiency and high mass-productivity and suitable for a thermal conductive filler are provided, the coated magnesium oxide particles being coated magnesium oxide particles in which the surface of magnesium oxide particles is coated with at least one of a fatty acid and a fatty acid metal salt, and wherein X in relation to particles is defined as X=[a BET specific surface area diameter calculated from a BET specific surface area of the particles]÷[D50 of the particles], provided that D50 is a particle diameter at 50% accumulation in a cumulative particle size distribution of the particles, the magnesium oxide particles having X of less than 0.2 and D50 of 5 to 100 ?m, and the coated magnesium oxide particles having X of 0.2 or more, D50 of 5 to 100 ?m, and oil absorption of less than 25 mL/100 g.
    Type: Application
    Filed: September 24, 2019
    Publication date: January 16, 2020
    Inventors: Naoto NISHIDA, Koji NAKAMURA, Seiji YAMAGUCHI
  • Publication number: 20190019932
    Abstract: A light emitting device includes: a base member; an insulating layer stacked in a surface of the base member, the insulating layer having excellent adhesion to a sealing glass; and a light emitting element mounted on the insulating layer, wherein: the insulating layer is formed by directly supplying a material to the surface of the base member; and porosity of the insulating layer is 10% or less.
    Type: Application
    Filed: June 19, 2018
    Publication date: January 17, 2019
    Inventors: Seiji Yamaguchi, Hiroshi Ito, Takayoshi Yajima
  • Patent number: 10096757
    Abstract: To prevent cracks on a sealing glass or a substrate in a LED package in which a light-emitting device is sealed with a sealing glass. The LED package comprises a substrate, a LED mounted on the substrate, and a sealing glass for sealing a LED formed on the substrate. A wiring pattern being connected to an electrode of the LED is formed on the surface of the substrate. A back electrode pattern is formed on the rear surface of the substrate. A columnar via is formed in the substrate. Thus, the wiring pattern on the surface of the substrate and the back electrode pattern on the rear surface of the substrate are electrically connected. A softening point of the substrate is set higher than softening point of the sealing glass.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: October 9, 2018
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Seiji Yamaguchi, Hiroshi Ito
  • Patent number: 9994028
    Abstract: An ink heating device that is disposed on an inkjet recording device and heats ink includes an ink tank and at least one heater to heat the ink tank. The ink tank is an integrated unit of subtanks storing ink disposed along the longitudinal direction. The at least one heater heats both longitudinal ends of the ink tank to a temperature higher than a temperature of a central area in the longitudinal direction of the ink tank.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: June 12, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Takeshi Urakami, Seiji Yamaguchi
  • Patent number: 9969173
    Abstract: An ink cartridge in which gel ink that is to be supplied to an ink tank of an inkjet recording apparatus is reserved, includes an ink pack and an outer box. The ink pack includes an ink container formed of a soft film material in which the ink is contained and an ink lead-out section which guides the ink inside the ink container outside. The outer box houses the ink pack and has an ink lead-out opening through which the ink lead-out section is exposed outside. The outer box has a pressure applying opening formed therein through which the ink container is exposed and a pressure is capable to be applied to the ink container or has a first perforation line along which the outer box is to be broken to form the pressure applying opening is formed thereon.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: May 15, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventor: Seiji Yamaguchi
  • Publication number: 20180053883
    Abstract: A light-emitting device includes a circuit board including a wiring on a surface of a substrate, the wiring including a raised portion, and a light-emitting element mounted on the raised portion. When the light-emitting element is of a flip-chip type, an element electrode thereof is connected to the raised portion such that an edge of the element electrode on an outer periphery side of the light-emitting element is located outside of the raised portion in a top view and an exposed portion of the element electrode is covered with a white or transparent resin. When the light-emitting element is of a face-up type, an element substrate thereof is bonded to the raised portion such that the raised portion is located inside the element substrate in the top view and an exposed portion of a bottom surface of the element substrate is covered with a white resin.
    Type: Application
    Filed: June 9, 2017
    Publication date: February 22, 2018
    Inventors: Takayoshi YAJIMA, Hiroshi ITO, Seiji YAMAGUCHI
  • Patent number: 9828538
    Abstract: A thermally conductive resin filler including a sintered body containing at least magnesium oxide, calcium oxide, and silicon oxide, the thermally conductive filler being characterized in that, when the molar number of calcium element contained in the total composition of the sintered body in terms of calcium oxide (CaO) is defined as MCa, and the molar number of silicon element contained in the total composition of the sintered body in terms of silicon oxide (SiO2) is defined as MSi, the molar ratio of the calcium oxide (CaO) to the silicon oxide (SiO2) represented by MCa/MSi is in the range of 0.1 or more and less than 2.0.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: November 28, 2017
    Assignee: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Naoto Nishida, Seiji Yamaguchi, Akira Yoshida, Satoshi Shimmatsu
  • Patent number: 9783684
    Abstract: Shown is an active energy ray-curable coating varnish which is capable of suppressing outward migration from printed matter, and which is capable of simultaneously achieving excellent curability and excellent line applicability, in addition to low yellowing characteristics. The coating varnish contains a (meth)acrylate compound (A) and a photopolymerization initiator (B), wherein at least one compound selected from the group consisting of ethylene oxide-modified pentaerythritol tetraacrylates, ethylene oxide-modified diglycerol tetraacrylates, ethylene oxide-modified trimethylolpropane triacrylates and ethylene oxide-modified ditrimethylolpropane tetraacrylates is used as the (meth)acrylate compound (A), and at least one of 2-hydroxy-1-[4-[4-(2-hydroxy-2-methyl-propionyl)-benzyl]-phenyl]-2-methylpropan-1-one (b1) and oligo[2-hydroxy-2-methyl-1-[4-(1-methylvinyl)phenyl]propanone] (b2) is used as the photopolymerization initiator (B).
    Type: Grant
    Filed: May 25, 2015
    Date of Patent: October 10, 2017
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYO INK CO., LTD.
    Inventors: Seiji Yamaguchi, Shinsuke Tsurutani