Patents Assigned to Tomoegawa Co., Ltd.
  • Patent number: 10330831
    Abstract: Provided is an anisotropic optical film, which can, while keeping excellent display characteristics (e.g., brightness and contrast) in the direction of a viewing angle, suppress decreased display characteristics in the other directions, when the anisotropic optical film is used as a diffusion film of a display panel.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: June 25, 2019
    Assignee: Tomoegawa Co., Ltd.
    Inventors: Masahide Sugiyama, Hiroto Katagiri, Hiroyuki Abe, Tsubasa Sakano
  • Publication number: 20190061320
    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: Application
    Filed: January 24, 2017
    Publication date: February 28, 2019
    Applicants: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO. LTD., TOMOEGAWA CO., LTD.
    Inventors: Yohsuke ISHIKAWA, Yoshiaki ESAKI, Takayoshi OZEKI, Jun TOCHIHIRA, Ryu HARADA
  • Publication number: 20180376579
    Abstract: A multilayer printed wiring board has excellent high-frequency characteristics. The multilayer printed wiring board includes one or more conductive layers and one or more insulating layers. In the multilayer printed wiring board, the one or more conductive layers and the one or more insulating layers are alternately stacked. Each insulating layer of the one or more insulating layers includes one or more of a polyolefin resin layer, a fluororesin layer, a polyphenylene ether resin layer, a polyamideimide resin layer, and a polyimide resin layer. At least one insulating layer of the one or more insulating layers includes a polyolefin resin layer.
    Type: Application
    Filed: January 24, 2017
    Publication date: December 27, 2018
    Applicants: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., TOMOEGAWA CO., LTD.
    Inventors: Hiroaki TAKAHASHI, Tomoyuki AOKI, Kiyotaka KOMORI, Jun TOCHIHIRA, Ryu HARADA
  • Publication number: 20180270945
    Abstract: A multilayer printed wiring board including one or more insulating layers and at least one conductive layer which are stacked alternately is disclosed. The one or more insulating layers include at least one liquid crystal polymer resin layer so that each of the one or more insulating layers includes at least one layer selected from a group consisting of at least one polyolefin resin layer and the at least one liquid crystal polymer resin layer. A percentage by volume of the at least one liquid crystal polymer resin layer relative to the one or more insulating layers is within a range of 5 to 90%.
    Type: Application
    Filed: January 5, 2016
    Publication date: September 20, 2018
    Applicants: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., TOMOEGAWA CO., LTD.
    Inventors: Hiroaki TAKAHASHI, Kiyotaka KOMORI, Masaya KOYAMA, Jun TOCHIHIRA, Ryu HARADA
  • Publication number: 20180258324
    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: Application
    Filed: January 19, 2016
    Publication date: September 13, 2018
    Applicants: Tomoegawa Co., Ltd., Tomoegawa Co., Ltd.
    Inventors: Jun Tochihira, Ryu Harada
  • Patent number: 9989678
    Abstract: In an anisotropic optical film including two or more anisotropic light diffusion layers where a linear transmittance varies depending on an incident light angle, each of the anisotropic light diffusion layers has a matrix region and a plurality of pillar regions that differ in refractive index from the matrix region, at least two types of anisotropic light diffusion layers (a) and (b) that differ in aspect ratio between a short diameter and a long diameter at a cross section perpendicular to an orientation direction of the pillar regions are used as the anisotropic light diffusion layers, the aspect ratio between the short diameter and the long diameter in the pillar regions is made less than 2 in the anisotropic light diffusion layer (a), and the aspect ratio between the short diameter and the long diameter in the pillar regions is made 2 or more and 20 or less in the anisotropic light diffusion layer (b).
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: June 5, 2018
    Assignee: Tomoegawa Co., Ltd.
    Inventors: Tsubasa Sakano, Masahide Sugiyama
  • Patent number: 9958580
    Abstract: Provided is an anisotropic optical film which is capable of diffusing and condensing light in a wide incident angle range even when this film merely has a single anisotropic diffusion layer, which gives no unnatural impression, and which does not easily generate any light interference (rainbow). An anisotropic optical film having a diffusing property which varies in accordance with the incident angle of light radiated thereinto. The film has rectangularly columnar region, and a matrix region. At an incident angle of the light at which a maximum linear transmittance is exhibited, the maximum linear transmittance is 30% or more and less than 95%; and at an incident angle of the light at which a minimum linear transmittance is exhibited, the minimum linear transmittance is 20% or less.
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: May 1, 2018
    Assignee: Tomoegawa Co., Ltd.
    Inventor: Masahide Sugiyama
  • Publication number: 20180074267
    Abstract: The present invention provides an end-face cleaner for cleaning an end face having a pin projected thereon, comprising an adhesive layer configured to be pierced with a pin, and a support configured to support the adhesive layer and expose a partial surface of the adhesive layer.
    Type: Application
    Filed: March 17, 2016
    Publication date: March 15, 2018
    Applicant: Tomoegawa Co., Ltd.
    Inventors: Masayoshi Suzuki, Nobuhiro Hashimoto, Hiroshi Sugiyama, Akiyoshi Shima
  • Patent number: 9581738
    Abstract: Provided is a display apparatus which has a sufficient luminance even when viewed at a large viewing angle, and which can overcome a problem of color change. The display apparatus is a display apparatus including a display device showing a color change in accordance with viewer's viewing angle, and an anisotropic optical film having a diffusing property changed in accordance with the incident angle of light radiated thereinto. The anisotropic optical film has at least one scattering central axis, and an angle made between the scattering central axis and a direction along which the display device shows a minimum color change is from 20 to 65°, or ?20 to ?65°.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: February 28, 2017
    Assignee: Tomoegawa Co., Ltd.
    Inventors: Masahide Sugiyama, Hiroto Katagiri, Yusuke Takechi, Hiroyuki Abe
  • Patent number: 9575281
    Abstract: A lens array fabrication method for fabricating a lens array includes: receiving pins of a film attaching instrument (jig) in second guide holes of a film-containing base plate; bonding a placement area and an adhesion layer (F); removing the pins; causing a detachment between a first detachment film (C) and a pressure-sensitive adhesive optical film (D); separating three layers (D) to (F) from two layers (B) and (C); receiving the pins in first guide holes of a lens array main unit; fitting a film holding protrusion in a depression part; bonding the film (D) to a bonding region (i); removing the pins; and causing a detachment between the film (D) and a second detachment film (E).
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: February 21, 2017
    Assignees: ENPLAS CORPORATION, TOMOEGAWA CO., LTD.
    Inventors: Masahiro Tanazawa, Shimpei Morioka, Makoto Goto, Nobuhiro Hashimoto
  • Publication number: 20160322122
    Abstract: A radiation shielding sheet of the present invention includes a fiber and a granular radiation shielding material, in which the fiber and the radiation shielding material are integrally formed into the shape of a sheet.
    Type: Application
    Filed: August 18, 2014
    Publication date: November 3, 2016
    Applicants: TOPPAN PRINTING CO., LTD., TOMOEGAWA CO., LTD.
    Inventors: Masaru HAYAKAWA, Minoru TSUCHIDA
  • Patent number: 9470845
    Abstract: Disclosed is an optical connection component manufacturing apparatus that manufactures an optical connection component in which a refractive index matching body is attached to a front end face of an optical fiber. A movement mechanism, an X-axis motor, and a movement stage that move the optical fiber set a first interval at which a refractive index matching liquid held on a holding face is adsorbed, by a Coulomb force according to the charging, onto a front end face of the optical fiber charged by a static electricity generating device and then enlarge the interval. The static electricity generating device applies electric charge to the optical fiber in the state of the first interval and continuously applies electric charge to the optical fiber even after the interval starts to be enlarged.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: October 18, 2016
    Assignee: TOMOEGAWA CO., LTD.
    Inventors: Masayoshi Suzuki, Nobuhiro Hashimoto
  • Patent number: 9467760
    Abstract: A microphone unit which can suppress collection of wind noise and minimize or eliminate digital signal processing has at least a microphone, a first acoustic transmissive material, and a second acoustic transmissive material, the first acoustic transmissive material is a fiber material in which fibers are intertwined with each other, the second acoustic transmissive material is a mesh-like member or a porous member having a plurality of holes, and the microphone is configured to be protected by the first acoustic transmissive material and the second acoustic transmissive material in this order.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 11, 2016
    Assignee: TOMOEGAWA CO., LTD.
    Inventors: Fukushi Kawakami, Takayuki Sano
  • Patent number: 9400350
    Abstract: Disclosed is an optical connection component manufacturing apparatus that manufactures an optical connection component in which a refractive index matching body is attached to a front end face of an optical fiber. The optical connection component manufacturing apparatus includes: a holding unit that includes a holding face holding a refractive index matching liquid including the refractive index matching body; a dispenser that supplies the refractive index matching liquid to the holding face; and a static electricity generating device that charges the optical fiber so that the refractive index matching liquid held on the holding face is adsorbed onto the front end face of the optical fiber, wherein the holding face has an outer peripheral edge connected in a curved line.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: July 26, 2016
    Assignee: TOMOEGAWA CO., LTD.
    Inventors: Masayoshi Suzuki, Nobuhiro Hashimoto
  • Patent number: 9372303
    Abstract: Disclosed is an optical connection component manufacturing apparatus that manufactures an optical connection component in which a refractive index matching body is attached to a front end face of an optical fiber. The optical connection component manufacturing apparatus includes: a holding unit that includes a holding face holding a refractive index matching liquid including the refractive index matching body; a dispenser that supplies the refractive index matching liquid to the holding face; and a static electricity generating device that charges the optical fiber so that the refractive index matching liquid held on the holding face is adsorbed onto the front end face of the optical fiber, wherein the holding face has an outer peripheral edge connected in a curved line.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: June 21, 2016
    Assignee: TOMOEGAWA CO., LTD.
    Inventors: Masayoshi Suzuki, Nobuhiro Hashimoto
  • Patent number: 9274365
    Abstract: An anisotropic scatterer is configured to allow a scattering characteristic of light in a display region of a display device to have an angle dependence, and is configured to change the scattering characteristic of the light continuously in an in-plane direction.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: March 1, 2016
    Assignees: Japan Display Inc., Tomoegawa Co., Ltd.
    Inventors: Masaya Tamaki, Tatsuya Yata, Yoko Fukunaga, Masashi Mitsui, Hiroto Katagiri, Masahide Sugiyama
  • Patent number: 9256017
    Abstract: An optical transmission medium bend working device that reduces bending loss of an optical transmission medium includes: an arc-discharge electrode that partially and sequentially heats a bend working area of a tape core wire in an up-down direction, the tape core wire extending in the up-down direction with a distal end thereof being located on a lower side, the bend working area being located above the distal end; a core wire holding unit that holds a portion of the tape core wire located above the bend working area; and a bending arm that applies force to the tape core wire in a state where the bend working area is heated to bend the tape core wire at the bend working area.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: February 9, 2016
    Assignee: TOMOEGAWA CO., LTD.
    Inventor: Kyoichi Sasaki
  • Patent number: 9218800
    Abstract: A sound transmission material is made of fibers entangled with each other and has a self-standing property and a high performance sound transmission property, namely the TABER™ stiffness is not less than 5 mN×m, the bending resistance is not less than 100 mN, the porosity is not less than 50%, and the thickness is not more than 3 mm.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: December 22, 2015
    Assignee: Tomoegawa Co., Ltd.
    Inventors: Fukushi Kawakami, Takayuki Sano
  • Publication number: 20150231662
    Abstract: Disclosed is an optical connection component manufacturing apparatus that manufactures an optical connection component in which a refractive index matching body is attached to a front end face of an optical fiber. The optical connection component manufacturing apparatus includes: a holding unit that includes a holding face holding a refractive index matching liquid including the refractive index matching body; a dispenser that supplies the refractive index matching liquid to the holding face; and a static electricity generating device that charges the optical fiber so that the refractive index matching liquid held on the holding face is adsorbed onto the front end face of the optical fiber, wherein the holding face has an outer peripheral edge connected in a curved line.
    Type: Application
    Filed: March 20, 2014
    Publication date: August 20, 2015
    Applicant: TOMOEGAWA CO., LTD.
    Inventors: Masayoshi SUZUKI, Nobuhiro HASHIMOTO
  • Patent number: D767839
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: September 27, 2016
    Assignee: TOMOEGAWA CO., LTD.
    Inventors: Nobuhiro Hashimoto, Masayoshi Suzuki