Patents Assigned to Mitsubishi Cable Industries, Ltd.
  • Structure for holding optical fiber
    Patent number: 6697560
    Abstract: A thin member for sealing and holding optical fibers laid two-dimensionally is composed of a base member layer, an adhesive member layer deposited on the base member layer, and a laminate member layer holding the optical fibers between it and the adhesive member layer. The optical fibers are arranged parallel not to be superposed on one another. They are bent individually by 180 degrees at the right-hand end of the thin member, bent downward toward the lower side of the thin member at the area from the central part to the left-hand side part, and led out of the thin member. Hence the structure is thin and therefore can be accommodated in a small space, enabling a small size. If the portions, led out of the thin member, of the optical fibers are covered with tubes, breakage of the optical fibers can be prevented. The thin member can be flexible.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: February 24, 2004
    Assignee: Mitsubishi Cable Industries, LTD
    Inventors: Katsuaki Kondo, Kazuo Imamura, Minoru Yoshida
  • Coaxial cable connector
    Patent number: 6692300
    Abstract: Disclosed is a connector 100 which has a center contact 20 electrically connected to an inner conductor formed of a corrugated duct, a tubular body 60 electrically connected to an outer conductor and surrounding the center contact 20, and an insulating member 70 by which the center contact 20 and the tubular body 60 are insulated electrically from each other. The center contact 20 is provided with an external thread part 22 which is brought into mating engagement with the inner conductor, and the external thread part 22 has a first external thread of a first pitch shorter than the pitch of the corrugated duct.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: February 17, 2004
    Assignee: Mitsubishi Cable Industries, Ltd.
    Inventors: Takayoshi Kanda, Nobuyoshi Matsuda
  • Metal seal and attachment method for the same and tight-seal construction
    Publication number: 20040012157
    Abstract: A metal seal of ring as a whole disposed between a first contact flat face portion and a second contact flat face portion parallel to each other. This metal seal has a middle base portion, a first contact convex portion, and a second contact convex portion. The first contact convex portion protrudes from an inner side and the second contact convex portion protrudes from an outer side. The metal seal generates torsional elastic deformation around the middle base portion as a center in an attached and compressed state.
    Type: Application
    Filed: July 17, 2003
    Publication date: January 22, 2004
    Applicant: MITSUBISHI CABLE INDUSTRIES, LTD.
    Inventors: Hironori Oida, Tetsuya Ashida, Takayoshi Mitsui
  • Optical fiber wiring board having an extension portion
    Patent number: 6668129
    Abstract: An optical fiber board has a substrate, optical fiber arranged as wiring on the substrate, and extension portions in each of which some optical fibers are led out from the substrate to be adjacent to each other in a row. The adjacent optical fibers at a base portion of the extension portion are not fixed to one another. The adjacent optical fibers at a forward end portion of the extension portion are fixed to one another integrally. The base portion has a predetermined length from an edge portion of the substrate.
    Type: Grant
    Filed: January 24, 2002
    Date of Patent: December 23, 2003
    Assignee: Mitsubishi Cable Industries, Ltd.
    Inventors: Katsuaki Kondo, Kazuo Imamura, Minoru Yoshida
  • Optical fiber wiring board
    Patent number: 6668124
    Abstract: An optical fiber board has a substrate 2, optical fibers arranged as wiring on the substrate 2, and extension portions 10 in which the optical fibers are led out from the substrate. The optical fibers in the extension portions 10 are covered with protective tubes 5 for protecting the optical fibers. One end portion 51 of each of the protective tubes 5 is attached to corresponding ones of notch portions 4 provided in an end edge portion of the substrate 2 from which the optical fibers are extended out.
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: December 23, 2003
    Assignee: Mitsubishi Cable Industries, Ltd.
    Inventors: Katsuaki Kondo, Kazuo Imamura, Minoru Yoshida
  • Rotation shaft seal
    Publication number: 20030222407
    Abstract: A rotation shaft seal to seal liquid, which is poor of lubricant liquid, stably for a long time. In a rotation shaft seal, provided with a rubber lip portion having a sliding inner peripheral edge portion which contacts a rotation shaft to seal liquid on a pressure chamber side, a lubricant liquid well portion is disposed near the sliding inner peripheral edge portion.
    Type: Application
    Filed: May 22, 2003
    Publication date: December 4, 2003
    Applicant: Mitsubishi Cable Industries, Ltd.
    Inventors: Atsushi Hosokawa, Tomoya Inagaki
  • Optical fiber
    Patent number: 6647192
    Abstract: A long period grating (8) by which an excitation light propagated through the 2nd core (4) of a double-core type optical fiber composed of the 2nd core (4) formed on the outer circumference of the 1st core (2) is guided into the 1st core (2) is formed on the 1st core (2) to improve an excitation efficiency.
    Type: Grant
    Filed: November 7, 2001
    Date of Patent: November 11, 2003
    Assignee: Mitsubishi Cable Industries, Ltd.
    Inventors: Minoru Yoshida, Kazuo Imamura, Tadahiko Nakai, Yasuhide Sudo
  • Connector with a connection detection function, optical fiber cable with a connection detection function, and equipment control mechanism for an optical equipment
    Patent number: 6618515
    Abstract: An optical connector 10 includes slide pins 16a and 16b, held for movement in a direction of an axis of the optical connector 10, and a proximity switch 21 whose conducting state can be switched in response to the movement of the slide pins. Only when the optical connector 10 is properly connected to an optical receptacle 11, the proximity switch 21 is turned into the conducting state.
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: September 9, 2003
    Assignee: Mitsubishi Cable Industries, Ltd.
    Inventors: Koji Kimura, Takeshi Satake, Koichi Maeda
  • Silica optical fiber
    Patent number: 6611650
    Abstract: A silica optical fiber is provided, which contains a pure-silica core and a cladding layer formed on the pure-silica core, wherein the pure-silica core contains a C element and has a content of elements belonging to the third period-the seventh period of the periodic table, except Si element that constitutes the quartz structure, of not more than 100 ppm. The present invention can provide a silica optical fiber superior in the resistance to high energy electromagnetic waves such as UV light and &ggr;-rays.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: August 26, 2003
    Assignee: Mitsubishi Cable Industries, Ltd.
    Inventors: Hiroyuki Hayami, Terunobu Iio, Toshikazu Gozen, Hirokazu Kuzushita, Michitsugu Mori, Takashi Okamura, Shuichi Ohmori
  • Positive electrode active material, positive electrode active material composition and lithium ion secondary battery
    Patent number: 6589694
    Abstract: The present invention relates to a positive electrode active material, a negative electrode active material and an electrolyte that are used alone or in combination to improve charge and discharge cycle characteristic, low temperature characteristic and safety of a non-aqueous electrolyic secondary battery, particularly a lithium ion secondary battery. Specifically, a particulate Li-transition metal composite oxide having an average particle size of not less than 10 &mgr;m, wherein [20/(specific surface area×average particle size)]=7-9, is used as a positive electrode active material.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: July 8, 2003
    Assignee: Mitsubishi Cable Industries, Ltd.
    Inventors: Itaru Gosho, Ken Moriuchi, Kenichi Kizu, Toshihiro Zushi, Masahiro Kamauchi, Mitsuhiro Asano, Kazuyuki Tateishi
  • Production method of ferro-electric crystals having periodically-poled structure
    Patent number: 6565648
    Abstract: An electrolyte solution is used as a liquid electrode. The liquid electrode, as one electrode, is faced with a domain to be subjected to polarization inversion on one side surface of a substrate made of a ferro-electric crystal, and an electrolyte solution, as the other liquid electrode, is faced with the other surface of the substrate to allow an electric field to act at least on the domain to be subjected to polarization inversion. A polarization inverting voltage is applied onto the substrate via the both liquid electrodes at a temperature of 45° C. or above, thereby to invert the direction of polarization. By this method, a periodically-poled structure of an Mg doped LiNbO3 crystal having a high quality can be formed.
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: May 20, 2003
    Assignee: Mitsubishi Cable Industries, Ltd.
    Inventors: Masaru Nakamura, Hirokazu Taniguchi, Hirotaka Ito
  • Rotation shaft seal
    Publication number: 20030057657
    Abstract: A rotation shaft seal disposed between a housing and a rotation shaft, and provided with a seal member of rubber having a lip end portion which extends as to diminish in diameter to a fluid storing chamber side, wherein the lip end portion has a contact portion which contacts a surface of the rotation shaft and an end face which is facing the rotation shaft, and a concave portion, generating a component of force in diameter direction to raise the lip end portion outward in the diameter direction when receiving pressure in the fluid storing chamber, is formed on the end face.
    Type: Application
    Filed: September 23, 2002
    Publication date: March 27, 2003
    Applicant: MITSUBISHI CABLE INDUSTRIES, LTD.
    Inventors: Atsushi Hosokawa, Hideo Nagaoka, Takeshi Yamada, Yuji Kaneshige
  • Optical fiber sheet, method of manufacturing the same, and optical fiber interconnector
    Publication number: 20030053772
    Abstract: An optical fiber sheet is provided with a plurality of input ports, each constituted by an optical fiber group, a plurality of output ports, each constituted by an optical fiber group made of optical fibers selected from a plurality of optical fibers extending from the plurality of input ports, and a sheet substrate on which the plurality of optical fibers extending from the plurality of input ports to the plurality of output ports is arranged. The plurality of optical fibers includes an optical fiber provided with an identification means that allows identification of the input port side portion and the output port side portion by visual confirmation.
    Type: Application
    Filed: September 18, 2002
    Publication date: March 20, 2003
    Applicant: MITSUBISHI CABLE INDUSTRIES, LTD.
    Inventors: Shogo Ikunishi, Katsuaki Kondo
  • Structure for retaining optical fiber
    Patent number: 6535684
    Abstract: A structure for retaining an optical fiber, capable of not only handling a long optical fiber as one piece without causing the optical fiber as a whole to get loose but also reducing an area occupied by the optical fiber and retaining the same stably without causing micro-bending thereof to occur, wherein the optical fiber (1) is arranged so as to form planarly staggered turning portions thereof without causing intersecting parts to occur, a plurality of similar planarly staggered turning portions of the optical fiber being laminated in the same position in the direction of the thickness thereof which is at right angles to a plane on which the optical fiber is arranged, the resultant optical fiber (1) being generally retained in a sheet-like state by a fixing material (2), such as a bonding agent and a film.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: March 18, 2003
    Assignee: Mitsubishi Cable Industries, Ltd.
    Inventors: Katsuaki Kondo, Minoru Yoshida, Yasuhide Sudo, Tatsuhiro Kawamura, Kazuo Imamura
  • Low load seal
    Patent number: 6523833
    Abstract: A ring-shaped low load seal attached into a ring-shaped dovetail groove having an opening portion, a first side wall face, a second side wall face, and a bottom wall face. This seal has a trileaf cross-sectional configuration composed of a first arc portion, a second arc portion, a protruding portion, and a concave portion disposed between the first arc portion and the second arc portion.
    Type: Grant
    Filed: April 11, 2000
    Date of Patent: February 25, 2003
    Assignees: Mitsubishi Cable Industries, Ltd., SMC Corporation
    Inventors: Tsuneo Ishigaki, Mamoru Fukuda, Yasuyuki Nishimura, Kazumasa Nishida
  • Fiber-wired sheet and method for manufacturing the same
    Publication number: 20030007773
    Abstract: The fiber-wired sheet of the present invention includes a pair of sheets facing each other and a fiber arrangement sandwiched by the pair of sheets. The pair of sheets have respective adhesive layers on the surfaces facing the fiber arrangement. The fiber arrangement has a double-layer structure composed of a continuous fiber, and the layers are in contact with the respective adhesive layers.
    Type: Application
    Filed: July 3, 2002
    Publication date: January 9, 2003
    Applicant: MITSUBISHI CABLE INDUSTRIES, LTD.
    Inventors: Katsuaki Kondo, Kazuo Imamura, Minoru Yoshida, Shogo Ikunishi
  • Molding method and apparatus for resin long body
    Publication number: 20020190430
    Abstract: A molding method for resin long body to make a thin long body of resin. Molten resin is supplied to a spaced portion of a mold through a thin film gate after a resin well of enlarged hollow ring is filled with the molten resin through plural pin runners in advance.
    Type: Application
    Filed: March 21, 2002
    Publication date: December 19, 2002
    Applicant: Mitsubishi Cable Industries, Ltd.
    Inventors: Satoru Fujiwara, Akihiro Yamamoto, Atsushi Ohhori
  • Foamable composition and coaxial cable having insulating foam layer
    Patent number: 6492596
    Abstract: A foamable composition containing a base polymer containing a polyethylene mixture of a low density-polyethylene having a density of 0.91-0.925 g/cm3 and a high density polyethylene having a density of 0.94-0.97 g/cm3, and a fluororesin powder and/or a boron nitride powder as a nucleator, wherein the high density polyethylene has an swelling ratio smaller than that of the low density polyethylene and a melt flow rate greater than that of the low density polyethylene, and is contained in a proportion of not less than 50 percent by weight of the polyethylene mixture, and the base polymer has a shear viscosity (temperature:170° C., shear rate:1216 sec−1) of not more than 3150 poise, and a coaxial insulating cable having an electrically insulating layer formed of a foam having an expansion ratio of not less than 70% and obtained by foaming the above foamable composition are provided.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: December 10, 2002
    Assignee: Mitsubishi Cable Industries, Ltd.
    Inventors: Takashi Higashikubo, Hirokazu Kuzushita, Akito Niboshi
  • Connector with a connection detection function, optical fiber cable with a connection detection function, and equipment control mechanism for an optical equipment
    Publication number: 20020159715
    Abstract: An optical connector 10 includes slide pins 16a and 16b, held for movement in a direction of an axis of the optical connector 10, and a proximity switch 21 whose conducting state can be switched in response to the movement of the slide pins. Only when the optical connector 10 is properly connected to an optical receptacle 11, the proximity switch 21 is turned into the conducting state.
    Type: Application
    Filed: June 21, 2001
    Publication date: October 31, 2002
    Applicant: MITSUBISHI CABLE INDUSTRIES, LTD.
    Inventors: Koji Kimura, Takeshi Satake, Koichi Maeda
  • Method and device for diagnosing deterioration of an article having at least a covering layer organic polymer material
    Patent number: 6450036
    Abstract: The invention is directed to a method and apparatus for diagnosing deterioration of an article having at least a covering layer made from an organic polymer material. The method comprises (i) forming a data group for deterioration diagnosis comprising deterioration diagnostic characteristic values and corresponding ultrasonic wave propagation characteristic values for samples having different material specifications, (ii) propagating an ultrasonic wave through the covering layer of the article to measure an ultrasonic wave propagation characteristic of the covering layer, and (iii) determining a corresponding deterioration diagnostic characteristic from the data group for the ultrasonic wave propagation characteristic of the covering layer.
    Type: Grant
    Filed: December 11, 2000
    Date of Patent: September 17, 2002
    Assignee: Mitsubishi Cable Industries, Ltd.
    Inventors: Tetsuya Ashida, Tsuyoshi Ikeda, Junichiro Ikehara, Masanori Fujii, Hiroshi Ishibashi, Yoshiro Habuka, Minoru Okamoto, Eiji Onuma, Hiroshi Kato