Patents Assigned to Tomoegawa Co., Ltd.
  • Patent number: 12104857
    Abstract: Provided is a heat storage unit having a simple configuration, capable of being attached to various objects, and capable of efficiently performing heat exchange. The heat storage unit has at least one inorganic fiber member configured by binding or entangling flexible inorganic fibers and having a desired shape; and a heat storage material in contact with the inorganic fibers.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: October 1, 2024
    Assignee: Tomoegawa Co., Ltd.
    Inventors: Katsuya Okumura, Shuhei Hatano, Ritsu Kawase, Hideki Moriuchi
  • Patent number: 12098998
    Abstract: Provided is a seal material having high rigidity without deformation or breakage, excellent corrosion resistance to fluid, and low solubility when used under high sealing force, and to provide a flow cell, a detector, and an analyzer in which there is no fluid leakage, contamination of the seal material components is prevented, and the replacement frequency is low. Provided are a seal material for an analyzer, including a resin and at least one layer of fiber sheet embedded in the resin, wherein the at least one layer of fiber sheet is embedded between and in substantially parallel to two seal surfaces: a first seal surface, which is one resin surface of the seal material; and a second seal surface, which is the other resin surface substantially parallel to the former one, and a flow cell, a detector, and an analyzer using the seal material.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: September 24, 2024
    Assignees: Tomoegawa Co., Ltd., SHIMADZU CORPORATION
    Inventors: Minoru Tsuchida, Akiyasu Oyaizu, Yusuke Nagai, Katsuya Okumura
  • Patent number: 12066710
    Abstract: An optical member including a polarizing plate having an absorption axis and a transmission axis which are orthogonal to each other, a reflective polarizing plate having a reflection axis and a transmission axis which are orthogonal to each other, and an optical anisotropic diffusion layer which is provided between the polarizing plate and the reflective polarizing plate and whose linear transmittance varies according to an incident light angle.
    Type: Grant
    Filed: September 1, 2023
    Date of Patent: August 20, 2024
    Assignees: TOPPAN INC., TOMOEGAWA CO., LTD.
    Inventors: Ayumu Sato, Kunpei Kobayashi, Norihiro Arai, Kazuhiko Oosawa, Hiroto Katagiri, Masahide Sugiyama, Masao Kato
  • Patent number: 11874481
    Abstract: To provide a head-mounted display that can obtain a higher sense of immersion without sensing coloring by diffusing and transmitting light from an organic electroluminescence display panel by an anisotropic optical film to reduce the visibility of a black matrix (BM). The head-mounted display is provided with an anisotropic optical film on the viewing side with respect to a color filter or an RGB light emitting layer in an organic electroluminescence display panel, said anisotropic optical film having a linear transmittance that varies depending on an incident light angle. The head-mounted display is characterized in that: the anisotropic optical film includes at least a single or a plurality of anisotropic light diffusion layers; and the anisotropic light diffusion layers have a matrix region and a plurality of pillar regions having refractive indexes different from that of the matrix region.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: January 16, 2024
    Assignee: TOMOEGAWA CO., LTD.
    Inventors: Tsubasa Sakano, Masahide Sugiyama
  • Publication number: 20230408861
    Abstract: An optical member including a polarizing plate having an absorption axis and a transmission axis which are orthogonal to each other, a reflective polarizing plate having a reflection axis and a transmission axis which are orthogonal to each other, and an optical anisotropic diffusion layer which is provided between the polarizing plate and the reflective polarizing plate and whose linear transmittance varies according to an incident light angle.
    Type: Application
    Filed: September 1, 2023
    Publication date: December 21, 2023
    Applicants: TOPPAN INC., Tomoegawa Co., Ltd.
    Inventors: Ayumu SATO, Kunpei KOBAYASHI, Norihiro ARAI, Kazuhiko OOSAWA, Hiroto KATAGIRI, Masahide SUGIYAMA, Masao KATO
  • Patent number: 11818835
    Abstract: A multilayer printed wiring board including one or more insulating layers 2 and at least one conductive layer 1 which are stacked alternately is disclosed. The one or more insulating layers 2 include at least one liquid crystal polymer resin layer 4 so that each of the one or more insulating layers 2 includes at least one layer selected from a group consisting of at least one polyolefin resin layer 3 and the at least one liquid crystal polymer resin layer 4. A percentage by volume of the at least one liquid crystal polymer resin layer 4 relative to the one or more insulating layers 2 is within a range of 5 to 90%.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: November 14, 2023
    Assignees: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., TOMOEGAWA CO., LTD.
    Inventors: Hiroaki Takahashi, Kiyotaka Komori, Masaya Koyama, Jun Tochihira, Ryu Harada
  • Patent number: 11445627
    Abstract: A resin card medium which has a substrate having electronic components mounted thereon and has sophisticated flatness and smoothness realized without providing any layer having holes for absorbing thicknesses of the electronic components; and a method for manufacturing a resin card medium. A resin card medium laminated body before pressing is prepared by laminating, on a first plastic finishing sheet, a substrate having one electronic component or two or more electronic components installed on one side of the substrate, with the one side, on which the electronic component or electronic components are installed, facing upward, and laminating, on the substrate, mixed paper constituted of plastic fibers and plant fibers, and by subjecting the resin card medium laminated body to hot pressing at a temperature which is a softening point or more of the plastic fibers and less than a melting point of the plastic fibers.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: September 13, 2022
    Assignees: SHOEI PRINTING CO., LTD., TOMOEGAWA CO., LTD.
    Inventors: Tomohiro Nakata, Hideki Moriuchi
  • Patent number: 11408125
    Abstract: A thermoplastic fiber sheet includes at least cellulosic fibers and thermoplastic resin fibers having a softening temperature of 100 to 140° C. A weight ratio of the cellulosic fibers to the thermoplastic resin fibers (the cellulosic fibers: the thermoplastic resin fibers) is 4:6 to 2:8, and porosity is 20 to 70%.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: August 9, 2022
    Assignee: Tomoegawa Co., Ltd.
    Inventors: Hideki Moriuchi, Hiroshi Kitahara, Masanori Takahata, Masanori Morinaga, Tomoki Furue
  • Patent number: 11344927
    Abstract: To provide a cleaner configured so that the cleaner can accurately remove dust and dirt, will leave less adhesive residue, and can sufficiently clean areas including an end surface of a ferrule and a guide pin. A cleaner is provided with an adhesive layer having an exposed surface facing an end surface of a connector from which a guide pin protrudes, the adhesive layer being elastically deformable when subjected to contact with the guide pin, and a holding part having a holding wall for holding the adhesive layer while exposing at least the exposed surface, the holding part being capable of bringing the guide pin into contact with the adhesive layer at a position at which the distance from the guide pin to the holding wall is greater than the length of the guide pin.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: May 31, 2022
    Assignee: Tomoegawa Co., Ltd.
    Inventors: Masayoshi Suzuki, Makoto Goto
  • Patent number: 11291945
    Abstract: The invention of the present application provides a self-heating sheet-like material for moisture absorption and desorption which includes at least a self-heating layer and an adsorption layer in a laminate thereof, in which the self-heating layer and the adsorption layer are connected in a state in which heat conduction is enabled; a moisture absorption and desorption body formed of this material; and a moisture absorption and desorption device.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: April 5, 2022
    Assignee: Tomoegawa Co., Ltd.
    Inventors: Katsuya Okumura, Minoru Tsuchida, Daisuke Muramatsu
  • Patent number: 11209587
    Abstract: According to the present invention, a light guiding laminate including a light guide plate with good visibility and an anisotropic optical film, and a planar light source device including the light guiding laminate and a light source are provided.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: December 28, 2021
    Assignee: Tomoegawa Co., Ltd.
    Inventors: Masahide Sugiyama, Masao Kato, Tsubasa Sakano, Shogo Suga
  • Publication number: 20210327683
    Abstract: A radio-frequency antenna through which a high amount of current can be efficiently passed even at a radio-frequency level for plasma generation, as well as a plasma processing device utilizing the radio-frequency antenna. A radio-frequency antenna includes a metal fiber sheet. A plasma processing device includes: a vacuum container including a wall having an opening; a radio-frequency antenna including a metal fiber sheet and located at the opening; and a dielectric protection plate located closer to the interior of the vacuum container than the radio-frequency antenna and configured to close the opening in a gas-tight manner. The radio-frequency antenna including a metal fiber sheet has a larger surface area and a lower impedance to a radio-frequency current than a radio-frequency antenna including a metal plate having the same outer shape. Therefore, it allows a radio-frequency current commonly used for plasma generation to be more efficiently passed through in large amounts.
    Type: Application
    Filed: April 16, 2021
    Publication date: October 21, 2021
    Applicants: EMD CORPORATION, TOMOEGAWA CO., LTD.
    Inventors: Akinori EBE, Hajime TSUDA, Hideki MORIUCHI
  • Patent number: 11124906
    Abstract: One object of the present invention is to provide a metal fiber nonwoven fabric having high homogeneity, and the present invention provides a metal fiber nonwoven fabric in which metal fibers are bonded to each other having a coefficient of variation (CV value) of a basis weight in accordance with JIS Z 8101 (ISO 3534: 2006) per 1 cm2 of 10% or less.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: September 21, 2021
    Assignee: Tomoegawa Co., Ltd.
    Inventors: Tatsunari Inoue, Hideki Moriuchi, Taku Kurahara, Daisuke Muramatsu
  • Patent number: 11126002
    Abstract: This head-mounted display is provided with, closer to the viewing side than a color filter having a black matrix between pixels in a liquid crystal display panel (160), an anisotropic optical film (150), the linear transmittance of which changes according to the angle of incident light, wherein the anisotropic optical film (150) includes a single-layered or multilayered anisotropic light diffusion layer, on at least on one surface of the anisotropic light diffusion layer, surface asperities having an arithmetic average roughness Ra of 0.10 ?m or less, which is measured in accordance with JIS B0601-2001, are formed, the anisotropic light diffusion layer has a matrix region and a plurality of pillar regions having a refractive index different from that of the matrix region, and the visibility of the black matrix is lowered by the anisotropic optical film (150), thereby making it possible to obtain a higher sense of immersion without feeling coloring.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: September 21, 2021
    Assignees: Tomoegawa Co., Ltd., Japan Display Inc.
    Inventors: Tsubasa Sakano, Masahide Sugiyama, Tetsuya Ooshima, Ryotaro Kogure, Yukihiro Nakamura
  • Publication number: 20210176854
    Abstract: A multilayer printed wiring board including one or more insulating layers 2 and at least one conductive layer 1 which are stacked alternately is disclosed. The one or more insulating layers 2 include at least one liquid crystal polymer resin layer 4 so that each of the one or more insulating layers 2 includes at least one layer selected from a group consisting of at least one polyolefin resin layer 3 and the at least one liquid crystal polymer resin layer 4. A percentage by volume of the at least one liquid crystal polymer resin layer 4 relative to the one or more insulating layers 2 is within a range of 5 to 90%.
    Type: Application
    Filed: February 10, 2021
    Publication date: June 10, 2021
    Applicants: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., TOMOEGAWA CO., LTD.
    Inventors: Hiroaki TAKAHASHI, Kiyotaka KOMORI, Masaya KOYAMA, Jun TOCHIHIRA, Ryu HARADA
  • Publication number: 20210132299
    Abstract: A cleaning tool that cleans an optical connector includes an adhesive body that contacts an optical signal region of the optical connector where an optical signal enters and is emitted from the optical connector; and a base that holds the adhesive body. The base includes a first protrusion on a holding surface of a holding part that holds the adhesive body. The first protrusion is disposed at a rear side of a section of the adhesive body and is in contact with the optical signal region.
    Type: Application
    Filed: March 6, 2018
    Publication date: May 6, 2021
    Applicants: FUJIKURA LTD., TOMOEGAWA CO., LTD.
    Inventors: Akihiro Nakama, Shigeo Takahashi, Hirotaka Asada, Makoto Goto, Masayoshi Suzuki
  • Patent number: 10988876
    Abstract: The present invention provides a cushion member and a stage member provided with the cushion member, the cushion member including a non-woven fabric formed by binding or entangling metal fibers, wherein when the cushion member is compressed, the cushion member undergoes compressive deformation and the following compressive deformation ratio is 5% to 80%: Compressive deformation ratio=(T0?T1)/T0×100, T0: film thickness of cushion member before application of load, and T1: film thickness of cushion member after application and release of load.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: April 27, 2021
    Assignee: Tomoegawa Co., Ltd
    Inventors: Katsuya Okumura, Hajime Tsuda
  • Patent number: 10843445
    Abstract: A sheet-shaped matched-type electromagnetic wave absorber can obtain electromagnetic wave absorption performance with a relatively small thickness but has a problem that particularly a dimensional change in an electromagnetic wave absorption layer (resin composition layer) has a large influence on the electromagnetic wave absorption performance when being exposed to a high temperature. By laminating a resin composition layer in which a filler with an aspect ratio of 5 or more and a filler with an aspect ratio of less than 5 are dispersed and fixed with an electromagnetic wave reflection layer in a cured product of a resin composition containing an acrylic polymerizable resin and a polymerization initiator, it is possible to provide a matched-type electromagnetic wave absorber having high heat resistant dimensional stability and high electromagnetic wave absorption performance.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: November 24, 2020
    Assignee: Tomoegawa Co., Ltd.
    Inventors: Takeshi Hashimoto, Takuma Hattori, Kojiro Tsuruta
  • Patent number: 10822527
    Abstract: This thermosetting adhesive composition contains as a component (A) a vinyl compound in which a terminal end of a bifunctional polyphenylene ether oligomer is converted to a vinyl group, as a component (B) a maleimide resin, and as a component (C) a thermoplastic elastomer, the equivalent ratio of vinyl groups in the component (A) and maleimide groups in the component (B) being 1.0:0.5 to 1.0:4.0, the proportion of the component (C) in the total weight of the component (A), the component (B), and the component (C) being 55 to 95% by weight, the ratio of styrene units of the component (C) with respect to the total weight of the component (C) being 10 to 40% by weight, the tensile stress at 100% elongation being 0.1 to 2.9 MPa, and the elongation at break being 100% or greater.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: November 3, 2020
    Assignee: Tomoegawa Co., Ltd.
    Inventors: Jun Tochihira, Ryu Harada
  • Patent number: 10751976
    Abstract: A resin-clad metal foil which enables a reduction in fluidity of a resin during molding and a reduction in extrusion of the resin while maintaining good adhesiveness, bendability, thermal resistance, and circuit filling property. A first insulating layer includes a polyimide resin layer, a polyamideimide resin layer, a liquid crystal polymer resin layer, a fluororesin layer, or a polyphenylene ether resin layer and a second insulating layer includes a polyolefin resin layer in a semi-cured state are disposed in this order on a metal foil. The polyolefin resin layer contains a component representing a polyolefin-based elastomer and a component representing a thermosetting resin. The percentage by mass of the component in the polyolefin resin layer ranges from 50 wt. % to 95 wt. %.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: August 25, 2020
    Assignees: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., TOMOEGAWA CO., LTD.
    Inventors: Yohsuke Ishikawa, Yoshiaki Esaki, Takayoshi Ozeki, Jun Tochihira, Ryu Harada