Patents Assigned to Mitsuboshi Belting
  • Toothed belt
    Patent number: 10359095
    Abstract: A toothed belt includes a plurality of tooth parts that are disposed at predetermined intervals along the longitudinal direction and contain a rubber composition (A) as a base material and a back side that has a cord embedded therein and contains a rubber composition (B) as a base material, in which the cord contains a Lang-twisted carbon fiber and is formed in a diameter of 1.1 mm or more and 2.5 mm or less and the rubber composition (B) constituting the back side has a hardness of from 80 degrees to 89 degrees in JIS-A hardness.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: July 23, 2019
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Masakuni Yoshida, Hirofumi Okabe
  • V-Ribbed Belt and Use Thereof
    Publication number: 20190219134
    Abstract: A V-ribbed belt has a plurality of V-rib portions extending along a longitudinal direction of the belt and in parallel with one another. The V-ribbed belt includes a compression rubber layer including a frictional power transmission face at least a part of which is configured to come in contact with a V-rib groove portion of pulleys. The frictional power transmission face of the compression rubber layer is formed from a vulcanizate of a rubber composition containing a rubber component and a noise suppression improver. A V-rib angle of the V-rib portions is larger than a V-rib groove angle of the pulleys by 5° to 9°.
    Type: Application
    Filed: August 25, 2017
    Publication date: July 18, 2019
    Applicant: Mitsuboshi Belting Ltd.
    Inventors: Yasutsugu Kunihiro, Hiroki Imai, Yuji Maruyama, Arata Hasegawa, Yorifumi Hineno
  • Thermosetting Polyurethane Composition and Use Thereof
    Publication number: 20190169349
    Abstract: A thermosetting polyurethane composition is provided for forming a belt to be used in an environment where the belt comes into contact with an oil including an unsaturated fatty acid and with a metal. The thermosetting polyurethane composition includes an isocyanate-group-terminated urethane prepolymer (A) having a polyester unit and/or a polycarbonate unit, a hydrolysis inhibitor (B), and a hardener (C).
    Type: Application
    Filed: July 27, 2017
    Publication date: June 6, 2019
    Applicant: Mitsuboshi Belting Ltd.
    Inventors: Kentaro Arimachi, Shingo Iizuka, Akira Takenaka, Takahide Okazawa
  • Pulley Structure
    Publication number: 20190136957
    Abstract: The present invention pertains to a pulley structure (1) equipped with an outer rotating body (2), an inner rotating body (3), and a coil spring (4), said pulley structure 1 characterized in that a cross section of the spring wire of the coil spring (4) along a direction running along the rotational axis and parallel to the rotational axis is a trapezoidal shape, the length Ti [mm] of an inner-diameter-side portion in the rotational axis direction in the cross section is greater than the length To [mm] of an outer-diameter-side portion in the rotational axis direction in the cross section, and when the number of windings of the coil spring (4) is N, expression (1) is satisfied. N×(Ti?To)/2<1??(1).
    Type: Application
    Filed: April 27, 2017
    Publication date: May 9, 2019
    Applicant: Mitsuboshi Belting Ltd.
    Inventors: Hayato Shimamura, Katsuya Imai, Ryosuke Dan
  • Auto tensioner
    Patent number: 10281014
    Abstract: The present invention relates to an auto-tensioner containing a base having a cylindrical part, a rotating member supported rotatably to the base, a pulley provided at the rotating member, a friction member sandwiched between the cylindrical part and the rotating member, and a coil spring locked to the friction member and the base and disposed in a state of being compressed in an axial direction, thereby biasing the rotating member in one direction, in which the friction member has an arcuate surface capable of sliding along the cylindrical part, a first locking part located further toward the one direction side than the arcuate surface in a circumferential direction of the cylindrical part and locked to the rotating member, and a second locking part locked to one end of the coil spring.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: May 7, 2019
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Satoshi Oishi, Koji Nishiyama, Tetsuo Yoneda
  • Conductive adhesive for screen printing, joined body of inorganic material, and method for producing same
    Patent number: 10285280
    Abstract: The present invention relates to a conductive adhesive for screen printing containing metal colloid particles (A) containing metal nanoparticles (A1) and a protective colloid (A2) containing an organic compound having a carboxyl group and a polymer dispersant having a carboxyl group, a viscosity modifier (B) having an amide bond and/or a urea bond, and a dispersion solvent (C).
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: May 7, 2019
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Taisuke Iseda, Kazutomo Kawahara, Masahiro Iwamoto
  • Friction Transmission Belt
    Publication number: 20190128373
    Abstract: A frictional power transmission belt is provided, containing an adhesion rubber layer in contact with at least a portion of a tension member extending in a longitudinal direction of the belt, in which the adhesion rubber layer is formed of a first vulcanized rubber composition containing a rubber component and a filler, the filler contains subsantially no silica and contains 30 parts by mass or more of carbon black based on 100 parts by mass of the rubber component, and the tension member has, on a surface thereof, an overcoat layer formed of a second vulcanized rubber composition containing a rubber component and silica.
    Type: Application
    Filed: April 14, 2017
    Publication date: May 2, 2019
    Applicant: Mitsuboshi Belting Ltd.
    Inventors: Hisato Ishiguro, Takuya Tomoda
  • Friction Transmission Belt
    Publication number: 20190128372
    Abstract: Provided is a frictional power transmission belt containing an adhesion rubber layer in contact with at least a portion of a tension member extending in a longitudinal direction of the belt, in which the adhesion rubber layer is formed of a first vulcanized rubber composition containing a rubber component and a filler. The filler contains substantially no silica and contains 30 parts by mass or more of carbon black based on 100 parts by mass of the rubber component, and the tension member has, on a surface thereof, an overcoat layer formed of a second vulcanized rubber composition containing a rubber component and silica.
    Type: Application
    Filed: April 14, 2017
    Publication date: May 2, 2019
    Applicant: Mitsuboshi Belting Ltd.
    Inventors: Hisato Ishiguro, Takuya Tomoda
  • Electroconductive Paste, Electronic Substrate, and Method for Manufacturing Said Substrate
    Publication number: 20190132961
    Abstract: A conductive paste includes a high melting point metal particle having a melting point exceeding a baking temperature, a molten metal particle containing a metal or an alloy which melts at a temperature equivalent to or lower than the baking temperature and has a melting point of 700° C. or lower, an active metal particle containing an active metal, and an organic vehicle.
    Type: Application
    Filed: December 27, 2016
    Publication date: May 2, 2019
    Applicant: Mitsuboshi Belting Ltd.
    Inventors: Hiroji Kobayashi, Yoko Hayashi
  • Toothed Belt and Manufacturing Method Therefor
    Publication number: 20190128371
    Abstract: A toothed belt includes: a belt main body having a tooth portion and a groove portion alternately disposed at a fixed pitch in a longitudinal direction, and an outer portion disposed on the outer surface thereof; and a cord buried on a predetermined pitch line on the outer portion, in which the belt main body includes: a support layer, disposed under the cord and containing a thermoplastic polyurethane material; and a cured polyurethane elastomer in addition to the support layer, and in which the support layer is formed of a mixture of the thermoplastic polyurethane material and the polyurethane elastomer, which are integrally cured.
    Type: Application
    Filed: June 5, 2017
    Publication date: May 2, 2019
    Applicant: Mitsuboshi Belting Ltd.
    Inventor: Susumu Osaki
  • V-ribbed belt
    Patent number: 10267382
    Abstract: The present invention relates to a V-ribbed belt to be wound around plural pulleys and used, including an extension layer that forms a back surface of the V-ribbed belt, a compression layer provided on one surface of the extension layer and having plural ribs extending parallel to each other along a longitudinal direction of the V-ribbed belt, and a load carrying cord embedded between the extension layer and the compression layer along the longitudinal direction of the V-ribbed belt, in which a distance from an outer peripheral portion of the load carrying cord on the rib side to a tip portion of the rib is from 2.0 to 2.6 mm, and a distance from the outer peripheral portion of the load carrying cord on the rib side to a bottom portion of the rib is from 0.3 to 1.2 mm.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: April 23, 2019
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Masashi Tamura, Hisato Ishiguro, Hiroshi Matsumura
  • Helical Belt and Belt Transmission Gear
    Publication number: 20190085938
    Abstract: A helical toothed belt includes: a back portion in which a tension member is buried and; a plurality of tooth portions arranged on one surface of the back portion with inclination to a belt width direction, in which a surface of the tooth portion and a portion of the one surface of the back portion are formed of a tooth fabric, the other surface of the back portion is formed of a back fabric, the plurality of tooth portions have a tooth pitch of 2 mm or more and 5 mm or less, and the tension member is a twisted cord containing a high-strength glass fiber or a carbon fiber and having a diameter of 0.2 mm or more and 0.6 mm or less.
    Type: Application
    Filed: March 17, 2017
    Publication date: March 21, 2019
    Applicant: Mitsuboshi Belting Ltd.
    Inventors: Masakuni Yoshida, Shunsuke Isoe, Isao Ideguchi
  • V-ribbed belt
    Patent number: 10215256
    Abstract: The present invention relates to a V-ribbed belt to be wound around plural pulleys and used, including an extension layer that forms a back surface of the V-ribbed belt, a compression layer provided on one surface of the extension layer and having plural ribs extending parallel to each other along a longitudinal direction of the V-ribbed belt, and a load carrying cord embedded between the extension layer and the compression layer along the longitudinal direction of the V-ribbed belt, in which a distance from an outer peripheral portion of the load carrying cord on the rib side to a tip portion of the rib is from 2.0 to 2.6 mm, and a distance from the outer peripheral portion of the load carrying cord on the rib side to a bottom portion of the rib is from 0.3 to 1.2 mm.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: February 26, 2019
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Masashi Tamura, Hisato Ishiguro, Hiroshi Matsumura
  • Friction Drive Belt
    Publication number: 20190003555
    Abstract: The present invention pertains to a frictional power transmission belt including a tension member extending in the longitudinal direction of the belt and an adhesion rubber layer in contact with at least a portion of the tension member, in which the adhesion rubber layer is formed of a vulcanized rubber composition containing a rubber component, short fibers having an average fiber diameter of 2 ?m or more, and a filler.
    Type: Application
    Filed: December 20, 2016
    Publication date: January 3, 2019
    Applicant: Mitsuboshi Belting Ltd.
    Inventors: Hisato Ishiguro, Yoshihiro Miura
  • Power-transmitting friction belt and method for manufacturing same
    Patent number: 10145447
    Abstract: The present invention relates to a frictional power transmission belt having a frictional power transmission surface covered with a warp knitted fabric, in which the warp knitted fabric contains a water absorptive thread in a proportion of 30% by mass or more based on the total amount of threads constituting the warp knitted fabric and a wale direction of the warp knitted fabric is substantially parallel to a belt longitudinal direction.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: December 4, 2018
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Manabu Mitsutomi, Tsuyoshi Takehara, Kazuyo Kojima
  • Power-transmitting friction belt and method for manufacturing same
    Patent number: 10138981
    Abstract: A frictional power transmission belt includes a frictional power transmission surface in which the frictional power transmission surface is covered with a fibrous member. The fibrous member at least includes water absorptive fibers and an inorganic powder exists in at least a surface of the fibrous member.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: November 27, 2018
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Manabu Mitsutomi, Hiroyuki Kojima, Kazuyo Kojima, Yusuke Suzumegano
  • Method for Manufacturing Core Wire for Transmission Belt, Treatment Agent, and Kit for Treatment
    Publication number: 20180313028
    Abstract: The present invention relates to a method for manufacturing a cord for a power transmission belt, including a first treatment step of treating an untreated yarn of a cord for a power transmission belt with a first treatment agent containing: a rubber composition (A) containing a condensate (A1) of a resorcin and formaldehyde, a rubber component (A2) containing a carboxy-modified latex, and a curing agent (A3) containing a polycarbodiimide resin having a plurality of carbodiimide groups; and a hydrophilic solvent (B).
    Type: Application
    Filed: October 27, 2016
    Publication date: November 1, 2018
    Applicant: Mitsuboshi Belting Ltd.
    Inventor: Takuya Tomoda
  • Flat belt, belt mechanism, belt lifting mechanism, attachment method, and method for manufacturing flat belt
    Patent number: 10088023
    Abstract: The present invention relates to a flat belt (10) that is an open end belt to be fixed to a coupler (31, 41), in which the flat belt (10) contains, formed on both end portions (11, 12) of at least one surface of the flat belt (10), a plurality of projected portions (13) engageable with a plurality of recessed portions (33, 43) formed on the coupler (31, 41).
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: October 2, 2018
    Assignee: Mitsuboshi Belting Ltd.
    Inventor: Eiki Tamura
  • Via Fill Substrate, Production Method Therefor, and Precursor Therefor
    Publication number: 20180249581
    Abstract: A method for producing a via-filled substrate includes a metal film forming step of forming a metal film containing an active metal on a hole part wall surface of an insulating substrate having a hole part, a filling step of filling a conductor paste having a volume change rate before and after firing of ?10 to 20% in the hole part in which the metal film is formed, and a firing step of firing the insulating substrate in which the conductor paste is filled.
    Type: Application
    Filed: September 21, 2016
    Publication date: August 30, 2018
    Applicant: Mitsuboshi Belting Ltd.
    Inventors: Osamu Mamezaki, Yoko Hayashi
  • V-Ribbed Belt and Method for Producing Same
    Publication number: 20180223953
    Abstract: A V-ribbed belt includes a compression rubber layer containing a vulcanizate of a rubber composition, a tension member, and a tension layer, and has a side part of the compression rubber layer being a ground surface coming into contact with pulleys, and a bottom part of the compression rubber layer being a non-ground surface not coming into contact with pulleys. The V-ribbed belt has, on a surface of the bottom part, a composite layer containing a fiber assembly and a vulcanizate. The fiber assembly contains a heat-resistant fiber which is not melted at a vulcanization temperature of the rubber composition and has a weight per unit area of 25 g/m2 or less. The vulcanizate of the rubber composition impregnated among fibers of the fiber assembly.
    Type: Application
    Filed: September 23, 2016
    Publication date: August 9, 2018
    Applicant: Mitsuboshi Belting Ltd.
    Inventors: Masashi Harada, Kohei Sugimura, Shuhei Tanaka