Patents Assigned to Tomoegawa Paper Co., Ltd.
  • Patent number: 7810229
    Abstract: There is provided a tape core wire manufacturing apparatus that makes it possible to manufacture a large variety of tape core wires in small quantities with ease, and in addition, makes it easy to apply a uniform coating over a broad width. In the tape core wire manufacturing apparatus of the present invention, a coating apparatus that applies a coating material to respective optical fiber core wires has a coating head that moves in the longitudinal direction relatively to the respective optical fiber core wires that have been placed in a row on a coating jig. The coating head has a position adjustment surface that is located in the vicinity of a coating member of the coating head and adjusts the positioning in the thickness direction of the respective optical fiber core wires when these are in the form of a tape. This position adjustment surface is pressed against the respective optical fiber core wires. The coating head is also able to be tilted in the longitudinal direction.
    Type: Grant
    Filed: June 9, 2006
    Date of Patent: October 12, 2010
    Assignee: Tomoegawa Paper Co., Ltd.
    Inventors: Kyoichi Sasaki, Masayoshi Suzuki, Ken Sukegawa
  • Publication number: 20100192846
    Abstract: There is provided a tape core wire manufacturing apparatus that makes it possible to manufacture a large variety of tape core wires in small quantities with ease, and in addition, makes it easy to apply a uniform coating over a broad width. In the tape core wire manufacturing apparatus of the present invention, a coating apparatus that applies a coating material to respective optical fiber core wires has a coating head that moves in the longitudinal direction relatively to the respective optical fiber core wires that have been placed in a row on a coating jig. The coating head has a position adjustment surface that is located in the vicinity of a coating member of the coating head and adjusts the positioning in the thickness direction of the respective optical fiber core wires when these are in the form of a tape. This position adjustment surface is pressed against the respective optical fiber core wires. The coating head is also able to be tilted in the longitudinal direction.
    Type: Application
    Filed: April 9, 2010
    Publication date: August 5, 2010
    Applicant: TOMOEGAWA PAPER CO., LTD.
    Inventors: Kyoichi Sasaki, Masayoshi Suzuki, Ken Sukegawa
  • Patent number: 7682764
    Abstract: A resin coated carrier for electrophotography and a two-component developer for electrophotography made therefrom, in which electrostatic charge giving ability to toner is high, anti-spent property is superior, charging property is stable even if a large number sheets are continuously printed, initial electrostatic charge increasing ability and electrostatic charge maintaining ability after leaving are also superior, and fogging at supplying toner and fogging after leaving are not generated. In a resin coated carrier for electrophotography comprising a coating material and a core material, in which the coating material covers the surface of the core material, the coating material contains a resin component and a conductive agent, the core material is ferrite, and electric resistance of the carrier at an applied voltage of 100 V set to be 1.0×103 to 1.0×106 ?·cm, or breakdown voltage is set to be 120 to 280 V.
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: March 23, 2010
    Assignee: Tomoegawa Paper Co., Ltd
    Inventors: Akira Fujiwara, Yoshiaki Harada
  • Patent number: 7513694
    Abstract: An optical fiber connecting method not causing any damage to the optical fibers and enabling effective use of space and an optical fiber connection structure formed by the method. The optical fiber connection structure is for connecting optical fibers by means of a component for connecting optical fibers comprising two plugs for aligning at least two optical fibers and connecting them and an adapter for fixing the plugs. Each plug in which an optical fiber is inserted is attached to an adapter in the direction perpendicular to the axial direction of the optical fiber, and the plug and adapter are fixed. A modification may be made in which a latch member is provided to at least one of the plug and adapter, a latch engaging section is provided to the other, the latch member is engaged with the latch engaging section, and the plug and adapter are fixed.
    Type: Grant
    Filed: July 14, 2003
    Date of Patent: April 7, 2009
    Assignee: Tomoegawa Paper Co., Ltd.
    Inventors: Kyoichi Sasaki, Ritsu Kawase, Masayoshi Suzuki, Tatsushi Kobayashi
  • Patent number: 7509009
    Abstract: The present invention provides an optical fiber structure that allows for reliable and easy branching of optical fibers, as well as a method of manufacturing such optical fiber structure. The optical fiber structure proposed by the present invention is characterized by a structure wherein multiple optical fiber units, each comprising multiple optical fibers that are aligned two-dimensionally in such a way that one side is covered by a first covering body, are aligned so that the covered surfaces face the same direction, and the covered or uncovered surfaces of the multiple optical fiber units are integrally covered by a second covering body. The second covering body should preferably be made of silicone rubber having a tearing strength of 29 kgf/cm or below.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: March 24, 2009
    Assignee: Tomoegawa Paper Co., Ltd
    Inventors: Masayoshi Suzuki, Kyoichi Sasaki, Ken Sukegawa
  • Patent number: 7502536
    Abstract: An optical fiber tape core comprises an optical fiber core assembly and a coating layer formed of silicone rubber and arranged on at least one side of the optical fiber core assembly. In the optical fiber core assembly, plural optical fiber cores two-dimensionally are arranged in parallel with each other. The silicone rubber which forms the coating layer has a hardness of from 20 to 90 and a tensile strength of from 15 to 80 kgf/cm2.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: March 10, 2009
    Assignee: Tomoegawa Paper Co., Ltd.
    Inventors: Masayoshi Suzuki, Ritsu Kawase, Kyoichi Sasaki, Tatsushi Kobayashi
  • Patent number: 7458729
    Abstract: An optical connecting method for optically connecting ends of a first optical fiber and a second optical fiber secured side to a first plug and a second plug, respectively, wherein the first optical fiber and the second optical fiber are threaded through the first and second plugs, and respective optical fiber is secured to respective plugs with securing parts, a bending step of bending a part of at least one of the first optical fiber and the second optical fiber that is present ahead of the securing part, an aligning step of aligning the first optical fiber and the second optical fiber and fixing a relative position between the first and second plugs, and an abutting step of abutting the first optical fiber and the second optical fiber by releasing flexure of at least one of the first optical fiber and the second optical fiber.
    Type: Grant
    Filed: April 7, 2005
    Date of Patent: December 2, 2008
    Assignee: Tomoegawa Paper Co., Ltd.
    Inventors: Kyoichi Sasaki, Masayoshi Suzuki, Tatsushi Kobayashi
  • Patent number: 7422375
    Abstract: The present invention provides an optical connection structure and optical connection method for enabling a connection characterized by a simple structure, ability to retain optical fibers in an adhered state, easy installation and detachment/attachment, and excellent optical stability. The optical connection structure proposed by the present invention has a solid viscous connection member having refractive-index matching property disposed in a single layer state between the end faces of mutually opposing optical transmission media or between the end face of an optical transmission medium and an optical component that are mutually opposing. The solid viscous connection member should desirably be made of silicone resin or acrylic resin.
    Type: Grant
    Filed: November 17, 2004
    Date of Patent: September 9, 2008
    Assignee: Tomoegawa Paper Co., Ltd.
    Inventors: Masayoshi Suzuki, Kyoichi Sasaki, Tatsushi Kobayashi
  • Patent number: 7378209
    Abstract: An electrophotographic toner used for an image forming method that utilizes a heat-pressure type fuser equipped with a fusing member having a surface layer containing polybenzimidazole, wherein the toner comprises at least cycloolefin copolymer resins as binder resins. The cycloolefin copolymer resins comprise a mixture of 0 to 75 percent by weight of a low molecular weight component having a weight-average molecular weight of less than 15000, 5 to 25 percent by weight of a medium molecular weight component having a weight-average molecular weight of 15000 to 100000, and 20 to 95 percent by weight of a high molecular weight component having a weight-average molecular weight of more than 100000.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: May 27, 2008
    Assignees: Tomoegawa Paper Co., Ltd., Ticona GmbH
    Inventors: Yoshihito Suwa, Toru Nakamura
  • Patent number: 7314695
    Abstract: A toner for developing electrostatic charge images that exhibits superior fixability at low temperature so as to realize satisfactory fixing performance even with less energy, that exhibits high stress resistance so as to be free from blade contamination by molten toner, and that exhibits excellent performances in any environmental conditions. In particular, a toner for developing an electrostatic charge images, comprising at least a binder resin, a colorant and a charge control agent, wherein a low-molecular-weight polymer having functional groups is used at least as the charge control agent and a cycloolefin copolymer resin is used at least as the binder resin.
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: January 1, 2008
    Assignees: Tomoegawa Paper Co., Ltd, Ticona GmbH
    Inventors: Yoshiaki Harada, Toru Nakamura
  • Patent number: 7312145
    Abstract: The present invention provides an electronic device having high insulating reliability, in which metal portions of a circuit are not electrically conductive with each other via an adhesive layer even when the electronic device is used in high-temperature low-humidity conditions or high-temperature high-humidity conditions, and provides a production method for the electronic device, and a semiconductor device comprising the electronic device. In the electronic device in which a circuit formed by pattern formation of metal portions is attached via an adhesive layer to an insulating base, the adhesive layer, which contacts adjacent metal portions, is divided. Typically, the electronic device is one of a lead frame having a lead frame fixing tape, a TAB tape, and a flexible printed circuit board.
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: December 25, 2007
    Assignee: Tomoegawa Paper Co., Ltd.
    Inventor: Takeshi Hashimoto
  • Patent number: 7311994
    Abstract: A separator for a lithium ion secondary battery, comprising a porous base material containing polyolefin, and a porous layer containing a vinylidene fluoride resin as a main component provided on at least one surface of the porous base material is excellent in electrolytic solution retention properties, adhesion and bondability to electrodes, and dimensional stability, and also has high and uniform ionic conductivity, reduced interfacial resistance to electrodes, and shutdown properties. A lithium ion secondary battery having excellent capacity characteristics, charge and discharge characteristics, cycle characteristics, safety and reliability can be provided by using the separator.
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: December 25, 2007
    Assignee: Tomoegawa Paper Co., Ltd.
    Inventors: Masahide Sugiyama, Hiroki Totsuka, Shuuji Mitani, Masanori Takahata
  • Publication number: 20070258685
    Abstract: An optical fiber tape core comprises an optical fiber core assembly and a coating layer formed of silicone rubber and arranged on at least one side of the optical fiber core assembly. In the optical fiber core assembly, plural optical fiber cores two-dimensionally are arranged in parallel with each other. The silicone rubber which forms the coating layer has a hardness of from 20 to 90 and a tensile strength of from 15 to 80 kgf/cm2.
    Type: Application
    Filed: July 12, 2007
    Publication date: November 8, 2007
    Applicant: TOMOEGAWA PAPER CO., LTD.
    Inventors: Masayoshi Suzuki, Ritsu Kawase, Kyoichi Sasaki, Tatsushi Kobayashi
  • Patent number: 7286737
    Abstract: An optical fiber tape core comprises an optical fiber core assembly and a coating layer formed of silicone rubber and arranged on at least one side of the optical fiber core assembly. In the optical fiber core assembly, plural optical fiber cores two-dimensionally are arranged in parallel with each other. The silicone rubber which forms the coating layer has a hardness of from 20 to 90 and a tensile strength of from 15 to 80 kgf/cm2.
    Type: Grant
    Filed: July 14, 2003
    Date of Patent: October 23, 2007
    Assignee: Tomoegawa Paper Co., Ltd.
    Inventors: Masayoshi Suzuki, Ritsu Kawase, Kyoichi Sasaki, Tatsushi Kobayashi
  • Patent number: 7283304
    Abstract: The antiglare film proposed by the present invention has a light-diffusing layer in which fine resin particles are dispersed in a clear resin phase, wherein the fine resin particles comprise at least spherical fine resin particles and bowl-shaped fine resin particles having a concaved section at the particle center, and wherein the refractive index nx of the clear resin phase and the refractive index nz of the bowl-shaped fine resin particle satisfy the relationship expressed by formula (1) below. The light-diffusing layer may be provided on one surface of a clear base, and the irregular surface of the light-diffusing layer should preferably have an average roughness Ra of 0.1 to 1.0 ?m. nx?nz?0.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: October 16, 2007
    Assignee: Tomoegawa Paper Co., Ltd.
    Inventors: Makoto Murata, Kensaku Higashi
  • Publication number: 20070183052
    Abstract: The present invention provides an optical film that can be suitably used for antiglare treatment to suppress blurry image and reduced contrast, as well as a method of producing such optical film. The optical film proposed by the present invention has a transparent base and a coating layer which is provided on at least one side of the transparent base and where transparent fine particles of 0.5 to 10 ?m in average particle size are dispersed in a transparent resin phase, and one of the transparent resin phase or transparent fine particle contains a molecule-oriented high-molecular liquid crystal compound while the other is made of an optical isotropic resin.
    Type: Application
    Filed: March 17, 2005
    Publication date: August 9, 2007
    Applicant: TOMOEGAWA PAPER CO., LTD.
    Inventors: Makoto Murata, Kensaku Higashi, Nobuhiro Kawatsuki
  • Publication number: 20070076298
    Abstract: The antiglare film proposed by the present invention has a light-diffusing layer in which fine resin particles are dispersed in a clear resin phase, wherein the fine resin particles comprise at least spherical fine resin particles and bowl-shaped fine resin particles having a concaved section at the particle center, and wherein the refractive index nx of the clear resin phase and the refractive index nz of the bowl-shaped fine resin particle satisfy the relationship expressed by formula (1) below. The light-diffusing layer may be provided on one surface of a clear base, and the irregular surface of the light-diffusing layer should preferably have an average roughness Ra of 0.1 to 1.0 ?m. nx?nz?0.
    Type: Application
    Filed: March 16, 2005
    Publication date: April 5, 2007
    Applicant: TOMOEGAWA PAPER CO., LTD.
    Inventors: Makoto Murata, Kensaku Higashi
  • Patent number: 7192196
    Abstract: An optical fiber connection component which is easy to adjust the distance between the optical fiber ends before connection, hardly damages the optical fiber during transportation or connection, and saves the number of parts and the cost, and a method for connecting optical fibers by using this component. The optical fiber connection component used for the optical fiber connection method consists of a connection member having one or more optical fiber through-holes provided with guides for rodlike coupling member at or near both side ends, rodlike coupling members, and a plug having through-holes for rodlike coupling members. The connection member is arranged in the plug slidably with the rodlike coupling member inserted in the plug. Two such optical fiber connection components are opposed to the optical fiber inserted in the through-hole to butt the through-holes of both the connection members against each other.
    Type: Grant
    Filed: July 14, 2003
    Date of Patent: March 20, 2007
    Assignee: Tomoegawa Paper Co., Ltd.
    Inventors: Kyoichi Sasaki, Ritsu Kawase, Masayoshi Suzuki, Tatsushi Kobayashi
  • Patent number: 7182522
    Abstract: An optical connection structure has an adapter which mounts two connection members mounting two optical fibers brought face to face with each other, a cam member which transports the connection members in an axial direction of the optical fiber, and an urging member which urges the optical fiber in the axial direction of the optical fiber in a state that the pair of optical fibers which are held respectively by the pair of connection members are brought face to face with each other.
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: February 27, 2007
    Assignee: Tomoegawa Paper Co., Ltd.
    Inventors: Kyoichi Sasaki, Masayoshi Suzuki, Tatsushi Kobayashi, Kazufusa Noda
  • Publication number: 20060277752
    Abstract: There is provided a tape core wire manufacturing apparatus that makes it possible to manufacture a large variety of tape core wires in small quantities with ease, and in addition, makes it easy to apply a uniform coating over a broad width. In the tape core wire manufacturing apparatus of the present invention, a coating apparatus that applies a coating material to respective optical fiber core wires has a coating head that moves in the longitudinal direction relatively to the respective optical fiber core wires that have been placed in a row on a coating jig. The coating head has a position adjustment surface that is located in the vicinity of a coating member of the coating head and adjusts the positioning in the thickness direction of the respective optical fiber core wires when these are in the form of a tape. This position adjustment surface is pressed against the respective optical fiber core wires. The coating head is also able to be tilted in the longitudinal direction.
    Type: Application
    Filed: June 9, 2006
    Publication date: December 14, 2006
    Applicant: TOMOEGAWA PAPER CO., LTD.
    Inventors: Kyoichi Sasaki, Masayoshi Suzuki, Ken Sukegawa