Patents Assigned to Tomoegawa Co., Ltd.
  • Publication number: 20120003525
    Abstract: The present invention provides a separator for an electricity storage device that is formed by superimposing two or more fiber layers, wherein at least one or more of the fiber layers is a synthetic fiber layer that contains synthetic fibers and a synthetic resin binding agent, and also provides a method of manufacturing the same. Moreover, the present invention provides a separator for an electricity storage device that contains thermoplastic synthetic fibers A, heat-resistant synthetic fibers B, natural fibers C, and a synthetic resin-based binding agent, and also provides a method of manufacturing the same.
    Type: Application
    Filed: March 16, 2010
    Publication date: January 5, 2012
    Applicant: TOMOEGAWA CO., LTD.
    Inventors: Takeshi Hashimoto, Hiroki Totsuka, Masanori Takahata, Mitsuyoshi Takanashi, Yasuhiro Oota, Kazuhiko Sano, Daisuke Tezuka
  • Patent number: 8034435
    Abstract: The invention relates to a plastic film with an interference multilayer system applied thereon that comprises at least two layers. Said layers can be obtained by hardening and/or applying thermal treatment to a coating composition containing nanoscale inorganic solid particles having polymerizable and/or polycondensable organic surface groups, thereby forming a layer that is crosslinked by means of the polymerizable and/or polycondensable organic surface groups. The films can be used as an optical laminating film.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: October 11, 2011
    Assignee: Tomoegawa Co., Ltd.
    Inventors: Andreas Zimmermann, Fumio Kita, Anette Berni, Martin Mennig, Peter W. Oliveira, Helmut Schmidt, Takamasa Harada
  • Publication number: 20110206972
    Abstract: Provided is a power storage device separator that is realized in the form of a heat-resistant, solvent-resistant, and dimensionally stable thin film. Also provided is a power storage device separator that can be realized in the form of a thin film which has excellent ion permeability and low resistance, which makes short-circuiting between electrodes and self-discharging difficult to occur, and in addition, which has excellent durability even after long periods of use under high temperature environments in the presence of organic solvents and ionic solutions.
    Type: Application
    Filed: October 14, 2009
    Publication date: August 25, 2011
    Applicant: TOMOEGAWA CO., LTD.
    Inventors: Takeshi Hashimoto, Hiroki Totsuka, Masanori Takahata, Mitsuyoshi Takanashi, Yasuhiro Oota, Kazuhiko Sano, Daisuke Tezuka
  • Publication number: 20110198035
    Abstract: An adhering jig for an adhesive connecting member is provided, in which the adhesive connecting member can be adhered without being broken even if it is twisted during connection of an optical fiber. The adhesive connecting member of the present invention has a tabular member having insertion holes fitting a shape of the optical connector, and an adhesive connecting member having a certain size. The adhesive connecting member has a strongly adhesive layer and non-adhesive layer, and the adhesive connecting member was arranged at a bottom of the insertion hole via the weakly adhesive layer, so that the non-adhesive layer is lower.
    Type: Application
    Filed: October 27, 2009
    Publication date: August 18, 2011
    Applicant: Tomoegawa Co. Ltd
    Inventors: Nobuhiro Hashimoto, Makoto Gotou
  • Publication number: 20110198765
    Abstract: An optical transmission medium shaping method and an optical transmission medium shaping apparatus can accurately adjust desire curvature radius without cracking the optical transmission medium. The optical transmission medium shaping method for bending an optical transmission medium using a transferring means and a noncontacting heating means, includes a transferring and heating process for heating part of the optical transmission medium by the noncontacting heating means while transferring the transferring means, and a bending process for bending the optical transmission medium.
    Type: Application
    Filed: October 16, 2009
    Publication date: August 18, 2011
    Applicant: TOMOEGAWA CO., LTD.
    Inventor: Kyoichi Sasaki
  • Patent number: 7985461
    Abstract: An adhesive connecting member and an optical connecting structure using the member, in which connection loss can be reduced and handling is facilitated, are provided. The adhesive connecting member optically connects an optical transmission medium and another optical transmission medium or an optical part by being intervened therebetween, and the member has a strongly adhesive face contacting the optical transmission medium and a weakly adhesive face contacting the other optical transmission medium or optical part. In addition, by this adhesive connecting member, the optical transmission medium and the other transmission medium or optical part can be optically connected.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: July 26, 2011
    Assignee: Tomoegawa Co., Ltd.
    Inventors: Nobuhiro Hashimoto, Masayoshi Suzuki, Tomoki Furue, Ken Sukegawa
  • Publication number: 20110110630
    Abstract: An optical transmission medium, a ferrule, an optical terminal connector, an optical structure, and an optical equipment have both optical terminal functions and the optical connector functions without the need to change component depending on application. The optical transmission medium has at least one end thereof that is an APC cut surface and a refractive index matching member is provided on the APC cut surface. The ferrule is characterized in that at least one end thereof is an APC polished surface and a refractive index matching member is provided on the APC polished surface. The optical terminal connector includes a ferrule which holds an optical transmission medium and an adapter into which the ferrule is inserted from one end thereof, at least one end of the optical transmission medium is an APC cut surface and a refractive index matching member is provided on the APC cut surface.
    Type: Application
    Filed: June 8, 2009
    Publication date: May 12, 2011
    Applicant: Tomoegawa Co., Ltd.
    Inventor: Nobuhiro Hashimoto
  • Patent number: 7936958
    Abstract: An optical fiber coil and a production method therefor reduce the likelihood of optical transmission loss due to stress or temperature changes at low cost. Plural single optical fibers are arranged in parallel and are integrally covered with a covering portion so as to form an optical fiber ribbon, and the optical fiber ribbon is wound into a coiled state.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: May 3, 2011
    Assignee: Tomoegawa Co., Ltd.
    Inventors: Masayoshi Suzuki, Tadao Matsunaga, Tomoki Furue, Ken Sukegawa
  • Patent number: 7899284
    Abstract: The present invention provides a process for producing an optical connector, an apparatus for producing the same, and a process for forming a polymer coating film on an end face of a fibrous dielectric, which can dispose a refractive index adjuster only onto an end face of an optical transmitting medium with excellent reproducibility. Such a process includes bringing an end surface of the optical transmitting medium close to an end face of a liquid refractive index adjuster, while charging at least one of the optical transmitting medium and the liquid refractive index adjuster, thereby adhering the liquid refractive index adjuster to the end face of the optical transmitting medium, and thereafter solidifying the adhered liquid refractive index adjuster to obtain the refractive index adjuster.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: March 1, 2011
    Assignee: Tomoegawa Co., Ltd.
    Inventors: Tomoki Furue, Ken Sukegawa, Kyoichi Sasaki, Masayoshi Suzuki
  • Patent number: 7898636
    Abstract: A clay thin film substrate including a clay thin film having a structure, in which oriented clay particles are laminated; and at least a gas barrier inorganic layer which is laminated on at least one surface of the clay thin film.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: March 1, 2011
    Assignees: Tomoegawa Co., Ltd., National Institute of Advanced Science and Technology
    Inventors: Tomohito Inoue, Hajime Tsuda, Katsumi Motegi, Takeo Ebina, Fujio Mizukami
  • Publication number: 20100316912
    Abstract: This invention is relates to a separator of a power storage device which is a laminate of a polyolefin porous membrane layer and a fiber layer comprising a solvent spun cellulose; and a separator of a power storage device, wherein the separator is a laminate of a polyolefin porous membrane layer and a fiber layer comprising a solvent spun cellulose, and the volume of a cavity part of the fiber layer is smaller than the volume of a resin part of the polyolefin porous membrane layer.
    Type: Application
    Filed: June 9, 2010
    Publication date: December 16, 2010
    Applicant: Tomoegawa Co., Ltd.
    Inventors: Takeshi HASHIMOTO, Hiroki TOTSUKA, Masanori TAKAHATA, Mitsuyoshi TAKANASHI, Yasuhiro OOTA, Kazuhiko SANO
  • Publication number: 20100246011
    Abstract: In a composition layering one layer on a transparent substrate, the present invention provides an optical film which can balance anti-glare function, high contrast, color reproducibility, and anti-glittering enough. The optical film in the present invention comprises a transparent substrate, and a resin layer layered on the transparent substrate, the resin layer including transparent resin fine particles and a radiation-curable resin composition, and having a fine rugged structure of an average inclination angle in a range of 0.8° to 3.0° on the top surface of the resin layer; a haze value which is in a range of 40% to 60%; and a transmitted image clarity which is measured by using an optical comb having width of 0.5 mm and is in a range of 5% to 35%.
    Type: Application
    Filed: March 28, 2007
    Publication date: September 30, 2010
    Applicant: TOMOEGAWA CO., LTD.
    Inventors: Kazuya Ohishi, Chikara Murata, Hideki Moriuchi, Masaomi Kuwabara
  • Publication number: 20100239971
    Abstract: A toner for electrophotography includes toner particles containing at least a binder resin and a colorant, to which strontium titanate and hydrophobic silica as external additives are admixed, wherein the strontium titanate has a BET specific surface area of 20-50 m2/g and contains particles in a rectangular parallelepiped shape and wherein the hydrophobic silica contains hydrophobic silica A that has at least a BET specific surface area of 150-300 m2/g and the surface of which has been treated with an aminosilane and hexamethyldisilazane and hydrophobic silica B that has at least a BET specific surface area of 90-150 m2/g and the surface of which has been treated with hexamethyldisilazane.
    Type: Application
    Filed: September 3, 2008
    Publication date: September 23, 2010
    Applicant: Tomoegawa Co., Ltd.
    Inventors: Tohru Moriya, Hitoshi Onoda, Kazuyoshi Hattori, Yoshihito Suwa
  • Patent number: 7800719
    Abstract: To provide a display which can improve viewing angle dependency of a contrast ratio at least in a specific azimuth without design change of a basic structure of a display element, limitation to white display state or black display state, and deterioration in display quality in other directions. The above-mentioned display is a display comprising: a display element with a contrast ratio dependent on a viewing angle; and an anisotropic scattering film having an anisotropic scattering layer, wherein the anisotropic scattering film is located on a viewing screen side of the display element and has a scattering central axis in substantially the same azimuth as an azimuth in which a contrast ratio of the display element in a direction inclined by a certain angle from a normal direction of a viewing screen of the display element has an extreme value.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: September 21, 2010
    Assignees: Sharp Kabushiki Kaisha, Tomoegawa Co., Ltd.
    Inventors: Masahiro Hasegawa, Akira Sakai, Kensaku Higashi, Yasuhiko Motoda, Hiroto Katagiri
  • Publication number: 20100209836
    Abstract: A color toner for electrophotography comprises, at least, a binder resin, a colorant and an antistatic composition. The antistatic composition comprises as the main components: (A) at least one member selected from a compound containing an ether linkage(s) and/or ester linkage(s) and a (co)polymer containing an ether linkage(s) and/or ester linkage(s); and (B) a component obtained by treating a metal salt of an alkali or alkaline earth metal with a compound capable of adsorbing anions.
    Type: Application
    Filed: July 23, 2008
    Publication date: August 19, 2010
    Applicant: TOMOEGAWA CO., LTD.
    Inventors: Kentaro Iwaki, Kimiaki Shiratori, Yoshihito Suwa, Nobuyuki Aoki
  • Patent number: 7754407
    Abstract: A toner for developing electrostatic charge images in which offset phenomenon and winding phenomenon do not occur in a wide temperature range, even if the binding resin contains the alicyclic olefinic resin, that is, a toner for developing electrostatic charge images which is superior in fixability in a high temperature range, and which is superior in melt contamination resistance, is provided. In the toner for developing electrostatic charge images comprises at least binder resin and colorant, the binding resin containing alicyclic olefinic resin (A) and thermoplastic elastomer (B). It is preferable that the alicyclic olefinic resin (A) be a copolymer comprising cyclic olefin (A1) and an acyclic unsaturated monomer (A2) as an element. Additionally, it is preferable that the melting point of the thermoplastic elastomer (B) be 60 to 190° C.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: July 13, 2010
    Assignee: Tomoegawa Co., Ltd.
    Inventor: Tohru Moriya
  • Publication number: 20100170076
    Abstract: An optical fiber coil and a production method therefor reduce the likelihood of optical transmission loss due to stress or temperature changes at low cost. Plural single optical fibers are arranged in parallel and are integrally covered with a covering portion so as to form an optical fiber ribbon, and the optical fiber ribbon is wound into a coiled state.
    Type: Application
    Filed: March 15, 2010
    Publication date: July 8, 2010
    Applicant: TOMOEGAWA CO., LTD
    Inventors: Masayoshi SUZUKI, Tadao Matsunaga, Tomoki Furue, Ken Sukegawa
  • Publication number: 20100143836
    Abstract: This invention provides a toner for a method for image formation by electrophotography, particularly a toner that, in a one-component development method, has stable fluidity and electrostatic properties for a long period of time, is free from image defects, and is also excellent in transferability and transfer efficiency. The toner for electrophotography comprises matrix toner particles and at least titanium oxide fine particles and fluidizer fine particles deposited on the surface of matrix toner particles. The titanium oxide fine particles are spherical and have an average primary particle diameter of 200 to 400 nm. The fluidizer fine particles have a specific surface area of 60 to 250 m2/g.
    Type: Application
    Filed: March 28, 2007
    Publication date: June 10, 2010
    Applicant: TOMOEGAWA CO., LTD.
    Inventors: Atsuo Miyamoto, Shinji Yoshizaki, Toshiyuki Shirai
  • Publication number: 20100098991
    Abstract: One object of the present invention is to provide a gas diffusion electrode for a polymer electrolyte fuel cell, which has excellent water repellency for quickly supplying and removing a reaction gas, and conductivity for efficiently conducting generated electrical power, a membrane-electrode assembly for a polymer electrolyte fuel cell and a method for producing the same, and a polymer electrolyte fuel cell, and the present invention provides a gas diffusion electrode comprising a nonwoven fabric, a porous fluororesin, and a carbon material.
    Type: Application
    Filed: February 22, 2008
    Publication date: April 22, 2010
    Applicant: TOMOEGAWA CO., LTD.
    Inventors: Toshiyasu Suzuki, Takuya Kawaguchi, Hiroki Totsuka
  • Patent number: 7683986
    Abstract: The invention aims at providing a display which can improve viewing angle dependency of contrast ratio in a wide azimuth without changing design of a basic structure of a display element, impairing display quality in a direction showing large contrast ratio and being limited to a state of displaying white or black. The aim is attained by a display comprising: a display element having viewing angle dependency of contrast ratio; and an anisotropic scattering film having an anisotropic scattering layer, wherein the anisotropic scattering film has a scattering central axis approximately parallel to a direction showing the largest contrast ratio of the display element and is located on a viewing screen side of the display element.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: March 23, 2010
    Assignees: Sharp Kabushiki Kaisha, Tomoegawa Co., Ltd.
    Inventors: Masahiro Hasegawa, Akira Sakai, Kensaku Higashi, Hiroto Katagiri