Patents Assigned to Bando Chemical Industries, Ltd.
  • FRICTION DRIVE BELT
    Publication number: 20130237354
    Abstract: A friction drive belt has a pulley contact portion of a belt body, and at least the pulley contact portion is made of a rubber composition. Numerous pores are formed in a surface of the pulley contact portion of the belt body, and numerous small protrusions having an average height of 4-40 ?m are formed to protrude from the surface.
    Type: Application
    Filed: April 22, 2013
    Publication date: September 12, 2013
    Applicant: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventor: Hiroyuki Shiriike
  • BELT DETACHMENT PREVENTING JIG
    Publication number: 20130167344
    Abstract: A belt detachment preventing jig (J1) is used for wrapping a belt around a crank pulley and a compressor pulley, each having a pulley groove, in a tight belt tension by having the belt fitted to the pulley groove of the crank pulley, with the belt looped over the compressor pulley, to prevent the belt from being detached from a belt-entering side of the compressor pulley. The belt detachment preventing jig (J1) is includes a fitting groove (11a) positioned on an outer side surface of a pulley flange of the compressor pulley, and configured to be slidably fitted to the pulley flange of the pulley, and a notch (10b) configured to be fitted to the pulley flange of the crank pulley and prevent the jig (J1) from being driven into rotation by a rotation movement of the compressor pulley.
    Type: Application
    Filed: August 31, 2011
    Publication date: July 4, 2013
    Applicant: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventor: Takashi Kunisada
  • Friction transmission belt
    Patent number: 8475310
    Abstract: In a friction transmission belt in which a compression rubber layer provided to an inner circumferential side of the belt body is wrapped over pulleys such that the compression rubber layer contacts the pulleys, such a configuration that both of a noise reduction and durability while the belt is running can be achieved is obtained. The compression rubber layer is configured so as not to include short fibers and so as to have a surface roughness, i.e., an Ra of at least a pulley contact surface of the compression rubber layer equal to or more than 3 ?m.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: July 2, 2013
    Assignee: Bando Chemical Industries, Ltd.
    Inventors: Hiroyuki Shiriike, Tomoyuki Yamada, Hiroyuki Tachibana, Fumihiro Mukai
  • High-load drive V-belt
    Patent number: 8449418
    Abstract: The present invention aims at improving the shock resistance of a block without lowering the power transmission property or the wear resistance of a belt while suppressing the separation of the contact portion off of the reinforcing member. A high-load drive V-belt B includes: at least one tension band 10 extending in an endless loop; and a plurality of blocks 20 engaged and secured to the tension band 10 at a predetermined pitch in a belt length direction of the tension band 10, wherein the plurality of blocks 20 are each formed by a reinforcing member 27 and a resin on both sides of the reinforcing member 27 in a belt width direction, and each include a contact portion 28 having a contact surface 30 to be in contact with a pulley, and a thickness w of the contact portion 28 in a direction perpendicular to the contact surface 30 is set to 1.0 mm or more and 1.8 mm or less.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: May 28, 2013
    Assignee: Bando Chemical Industries, Ltd.
    Inventors: Hiroyuki Sakanaka, Mitsuhiko Takahashi, Masahiro Inukai
  • METHOD FOR MANUFACTURING A FRICTION TRANSMISSION BELT
    Publication number: 20130099406
    Abstract: A method for manufacturing a friction drive belt for transmitting power while being wound around a pulley such that a compression rubber layer provided on an inner periphery of a belt body is in contact with the pulley enables both of noise reduction during the run of the belt and greater durability. A plurality of pores 15 having an average size of 5-120 ?m are formed in the compression rubber layer 12 by impregnating uncrosslinked rubber with supercritical or subcritical fluid, and then changing a phase of the supercritical or subcritical fluid to gas, thereby forming the pores with expansion of the fluid such that the compression rubber layer 12 has an air content of 5-40%.
    Type: Application
    Filed: December 10, 2012
    Publication date: April 25, 2013
    Applicant: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventor: Bando Chemical Industries, Ltd.
  • Transmission Belt
    Publication number: 20130085028
    Abstract: An object of the present invention is to provide an environmentally-friendly transmission belt. Provided is a transmission belt formed of a crosslinked rubber, wherein 80% by mass or more of the transmission belt comprises non-petroleum resources, and a base rubber of the crosslinked rubber is a natural rubber.
    Type: Application
    Filed: May 17, 2011
    Publication date: April 4, 2013
    Applicant: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventors: Tomoyuki Yamada, Hiroyuki Tachibana, Tomonari Nakamura, Tadahiko Noguchi
  • BELT ATTACHMENT JIG
    Publication number: 20130081241
    Abstract: A belt attachment jig includes a jig body (10) located along a side surface of a pulley (1), and a belt guide portion (15) which protrudes forward in the pulley rotational direction from a contact portion (11) near one end of the jig body (10). The belt (B) is held between the twisting preventing plate (12) which forms the other end of the jig body (10) and the side surface of the jig-attached pulley (1) such that an inner circumferential surface of the belt (B) faces the jig-attached pulley (1). As the pulley (1) is rotated, the belt attachment jig is moved in the pulley rotational direction together with the belt (B) in a manner that makes the belt (B) fitted in the pulley groove.
    Type: Application
    Filed: June 15, 2011
    Publication date: April 4, 2013
    Applicant: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventors: Takashi Kunisada, Takemasa Yoshimi
  • Power transmission belt
    Patent number: 8337349
    Abstract: The invention provides a power transmission belt which is superior in oil resistance so that it is swollen to only a reduced degree, reduced in hardness, and small in abrasion if the rubber layers are stained with oil while the belt is being used in an oil-present environment. Such a power transmission belt has rubber layers which comprise a compression rubber layer and an adhesion rubber layer both of which are vulcanized and bonded to each other and load carrying cords are embedded in the adhesion rubber layer, wherein at least the compression rubber layer between the two rubber layers is formed of vulcanizate obtained by vulcanizing ethylene-?-olefin-diene rubber with an organic peroxide and a trifunctional co-crosslinking agent.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: December 25, 2012
    Assignee: Bando Chemical Industries, Ltd.
    Inventors: Katsuyoshi Fujiwara, Yoshiyuki Kitano
  • FRICTION DRIVE BELT
    Publication number: 20120295748
    Abstract: A vehicle periphery monitoring system is provided, in which by matching a behavior of a semitransparent tire image with an operation from a driver's viewpoint, a feeling of strangeness is reduced, an intuitive space perception is assisted and also a moving direction and a behavior of a vehicle can be easily perceived. In a side-view monitor system an image processing controller converts a real camera image including a blind spot into an image to be viewed from a driver's viewpoint to generate a blind spot image, and superimposes a semitransparent vehicle image which is obtained by making a vehicle viewed from the driver's viewpoint semitransparent and a semitransparent tire image which is obtained by making a tire semitransparent and displaying a behavior following a handle operation viewed from the driver's viewpoint on the blind spot image.
    Type: Application
    Filed: November 18, 2010
    Publication date: November 22, 2012
    Applicant: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventor: Hiroyuki Shiriike
  • Blade for electrophotographic device with elastic rubber member constituted by edge/nip and base portions of different materials
    Patent number: 8275302
    Abstract: A blade for an electro-photographic device includes an elastic rubber member constituted by an edge portion and a base portion which are in contact with each other and are constituted by different materials, wherein the edge portion includes an edge subject to frictional wear in use and is made of ester polyurethane, and the base portion is adapted to be bonded to a support and is made of ether polyurethane. The blade undergoes minimal permanent deformation and offers excellent mechanical strength, wear resistance and compliance to the use environment.
    Type: Grant
    Filed: January 16, 2008
    Date of Patent: September 25, 2012
    Assignee: Bando Chemical Industries, Ltd.
    Inventors: Yasuhiro Sako, Ken Hirotomi, Nariaki Iwasaki
  • FLAT BELT
    Publication number: 20120165145
    Abstract: A flat belt includes an adhesive rubber layer formed in an endless ring shape and having a tensile member embedded therein, a first rubber layer provided on a surface of the adhesive rubber layer, and a second rubber layer provided on the other surface of the adhesive rubber layer, in which an elastic modulus in a belt width direction of the adhesive rubber layer is higher than the elastic modulus in the belt width direction of each of the first rubber layer and the second rubber layer.
    Type: Application
    Filed: September 1, 2009
    Publication date: June 28, 2012
    Applicant: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventors: Yoshiyuki Kitano, Masahiro Inukai, Mitsuhiko Takahashi
  • Cleaning blade for electrophotographic device and method for manufacturing the same
    Patent number: 8204424
    Abstract: The present invention provides a cleaning blade for an electrophotographic device, which, even when spherical (perfectly spherical or irregularly shaped), polymerized toner with a small particle diameter is used, can achieve sufficient abrasion resistance and sufficient cleaning ability (particularly cleaning ability under low-temperature and low-humidity conditions). The cleaning blade for an electrophotographic device includes an elastic rubber member; and a supporting member. The elastic rubber member has a double layer structure including an edge layer and a base layer. The edge layer is made of a material with a JIS-A hardness of 65° to 72° at 23° C. and a rebound resilience of 10 to 35%. The base layer is made of a material with a JIS-A hardness of 70° to 80° at 23° C. and a rebound resilience of 40 to 70%, the JIS-A hardness value being larger than the value of hardness of the edge layer.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: June 19, 2012
    Assignee: Bando Chemical Industries, Ltd.
    Inventors: Takashi Miki, Takayuki Nagase, Sadaharu Nakamura
  • Drive belt
    Patent number: 8147365
    Abstract: A drive belt includes an endless belt body made of an ethylene-?-olefin elastomer composition and a cord embedded in the belt body to form a spiral at a specified pitch in a widthwise direction of the belt. The drive belt has a bending stiffness not larger than 0.064 N·cm2 per a belt width of 4.8 mm and the belt body has a Wallace rubber hardness not smaller than 60°.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: April 3, 2012
    Assignee: Bando Chemical Industries, Ltd.
    Inventors: Hisashi Matsuda, Yuji Sekiguchi
  • FRICTION DRIVE BELT AND MANUFACTURING METHOD THEREOF
    Publication number: 20120058849
    Abstract: In a friction drive belt (B), a belt body (10) made of a rubber composition is wrapped around pulleys to transmit power. A powder layer (16) is combined and integrated with a pulley contact-side surface of the belt body (10) located on a side that is to contact the pulleys, so that the powder layer (16) covers the pulley contact-side surface.
    Type: Application
    Filed: May 11, 2010
    Publication date: March 8, 2012
    Applicant: BANDO CHEMICAL INDUSTRIES, LTD
    Inventor: Keisuke Yoshida
  • FRICTION TRANSMISSION BELT
    Publication number: 20120021858
    Abstract: A belt body (10) of a friction transmission belt (B) includes a pulley contacting portion (13) made of a rubber composition. The rubber composition forming the pulley contacting portion (13) includes an ethylene-?-olefin elastomer as a rubber component, and in the rubber composition, 10-50 parts by mass of calcium carbonate relative to 100 parts by mass of the rubber component, and carbon black whose DBP oil absorption amount measured according to the method A specified in Japanese Industrial Standards (JIS) K 6217-4 is 300 cm3/100 g or more are mixed.
    Type: Application
    Filed: March 26, 2009
    Publication date: January 26, 2012
    Applicant: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventors: Hisashi Matsuda, Shinji Takahashi
  • FLAT BELT
    Publication number: 20120021860
    Abstract: A flat belt (B) has a core-wire holding layer (11) extending in the longitudinal direction of the belt and having embedded therein core wires (14) arranged in a spiral pattern with a pitch in the lateral direction of the belt, and the flat belt (B) also has an inner rubber layer (12) provided on the inner peripheral side of the core wire holding layer (11) and making contact with pulleys. The core-wire holding layer (11) is constructed from a rubber composition containing short fibers (15) the amount of blend of which relative to 100 parts by mass of base rubber is 1 to 20 parts by mass and which are dispersed so as to be oriented in the lateral direction of the belt. The inner rubber layer (12) consists of a rubber composite not containing short fibers (15).
    Type: Application
    Filed: March 26, 2009
    Publication date: January 26, 2012
    Applicant: BANDO CHEMICAL INDUSTRIES, LTD
    Inventor: Hisashi Matsuda
  • FRICTION DRIVE BELT
    Publication number: 20110300981
    Abstract: A friction drive belt (B) includes a belt body (10) that is wrapped around pulleys in contact therewith to transmit power. At least a pulley contact portion (15) of the belt main body (10) is made of a rubber composition containing 30-80 parts by mass of at least one layered silicate selected from a smectite group and a vermiculite group, per 100 parts by mass of raw rubber containing an ethylene-?-olefin elastomer.
    Type: Application
    Filed: February 24, 2010
    Publication date: December 8, 2011
    Applicant: BANDO CHEMICAL INDUSTRIES, LTD
    Inventors: Shinji Takahashi, Kenichiro Furuta, Hiroyuki Shiriike, Tomoyuki Yamada, Hiroyuki Tachibana
  • Transmission belt and process for producing the same
    Patent number: 8063147
    Abstract: An object is to provide a transmission belt which is restrained from being deteriorated in a high-temperature atmosphere, is excellent in softness in a low-temperature atmosphere, and is hardly worn away. To attain the object, the invention provides a transmission belt made of a rubber composition wherein the ratio by weight of a Ziegler-Natta catalyst type ethylene/?-olefin copolymer rubber, which is an ethylene/?-olefin copolymer rubber obtained by polymerization in the presence of a Ziegler-Natta catalyst, to a metallocene type ethylene/?-olefin copolymer rubber, which is an ethylene/?-olefin copolymer rubber obtained by polymerization in the presence of a metallocene catalyst, is from 50/50 to 90/10.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: November 22, 2011
    Assignee: Bando Chemical Industries, Ltd.
    Inventor: Yasuhiko Yoshida
  • Organic electroluminescence element
    Patent number: 8043725
    Abstract: The invention provides an organic electroluminescence element which comprises a hole transporting layer which comprises a tris(p-terphenyl-4-yl)amine represented by the general formula (I) wherein R1, R2 and R3 are each independently a hydrogen atom, an alkyl group, a cycloalkyl group which may have substituents or an aryl group which may have substituents as a hole transporting agent, and a hole injecting layer which comprises a hole injecting agent comprising an aromatic tertiary amine having an ionization potential in the range of 5.2-5.6 eV. This organic electroluminescence element can be driven at a low voltage with high efficiency and at high luminance.
    Type: Grant
    Filed: July 20, 2007
    Date of Patent: October 25, 2011
    Assignee: Bando Chemical Industries, Ltd.
    Inventors: Tomokazu Kobata, Nobutaka Akashi
  • 1,3,5-tris(diarylamino)benzenes and use thereof
    Patent number: 8029920
    Abstract: The invention provides a 1,3,5-tris(diarylamino)benzene represented by the general formula (I) wherein A and B are each independently a group represented by the general formula (II) in which R is a hydrogen atom, an alkyl group of 1-6 carbons or a cycloalkyl group of 5 or 6 carbons and n is 0, 1, 2 or 3, provided that the values of n of A and B are not the same to each other. Such a 1,3,5-tris(diarylamino)benzene is able to form an amorphous film by vacuum evaporation at a relatively low temperature with almost or substantially no thermal decomposition, and is preferably used as organo-electronic functional material, in particular, as a hole injecting agent or a hole transporting agent.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: October 4, 2011
    Assignee: Bando Chemical Industries, Ltd
    Inventors: Nobutaka Akashi, Hideyuki Katou