Patents Assigned to Sunstar Giken Kabushiki Kaisha
  • Publication number: 20170297652
    Abstract: A battery bracket for attaching, to an electrically assisted moving body capable of supplementing a first driving force generated by human power with a second driving force generated by electrical power, and a battery for use in the electrically assisted moving body. This battery bracket includes an extension section extending in a prescribed direction, and a plurality of projection sections projecting from the extension section in a direction intersecting the prescribed direction. The plurality of projection sections are mutually spaced along the prescribed direction.
    Type: Application
    Filed: June 22, 2015
    Publication date: October 19, 2017
    Applicant: SUNSTAR GIKEN KABUSHIKI KAISHA
    Inventors: Akihito YOSHIIE, Katsuhiro YAMAGUCHI, Masafumi NISHIKAWA, Akira TAKAMA
  • Patent number: 9359536
    Abstract: Disclosed is an aqueous adhesive agent composition which has no concern about environmental safety and can be used as an adhesive agent composition for automobile interior materials. The aqueous adhesive agent composition comprises (A) an acid-modified polyolefin resin and (B) a core-shell-type curing agent.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: June 7, 2016
    Assignee: Sunstar Giken Kabushiki Kaisha
    Inventors: Takefumi Murai, Yoshimi Shibata
  • Patent number: 9045161
    Abstract: An automatic injecting type paste form heat-blowing injection composition comprising a partially crosslinked rubber, an unvulcanized rubber, a crosslinking agent, a plasticizer, a thermoplastic resin, an epoxy resin and a latent curing agent thereof, and a blowing agent. This composition can be used in a injecting and soundproofing method comprising forming an insulation wall by heating and foaming of a injection composition in a closed section of an automobile body part having a closed section frame which is produced by press molding in a body welding step of an automobile manufacturing line, and it has a good anti-stringy property and suffers form less sagging during heating and foaming.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: June 2, 2015
    Assignee: SUNSTAR GIKEN KABUSHIKI KAISHA
    Inventors: Yutaka Sugiura, Masaki Ukai, Kiyoyuki Gotou
  • Patent number: 8921485
    Abstract: The present invention relates to a moisture-curable adhesive composition applicable to production of automobile interior parts, having excellent adhesion to polyolefins such as polypropylene and polyethylene, and having excellent heat resistance. More specifically, the present invention relates to an adhesive composition comprising: a styrene block copolymer (A) having at least one unsaturated bond, a hydrogenated styrene block copolymer (B) having a styrene content of 15% by weight or more, a silane compound (C) having an unsaturated bond, an acid-modified polyolefin resin (D), and a polymerization initiator (E).
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: December 30, 2014
    Assignee: Sunstar Giken Kabushiki Kaisha
    Inventors: Atsushi Uno, Yoshimi Shibata
  • Patent number: 8729194
    Abstract: An object of the present invention is to provide a non-solvent type polyurethane resin which may be preferably used for a curing composition having physical properties after curing of low modulus and high elongation and which is excellent in adhesion, physical properties, handling property and storage stability and a process for producing the polyurethane resin without difficulty and at low cost. The polyurethane resin is obtained by reacting a urethane prepolymer obtained by reacting a mixture of a monool and a polyol, having on average 1.3 to 2.1 of terminal hydroxyl groups, and a polyisocyanate, and a compound having a crosslinkable silyl group, an imino group and an amino group in a molecule.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: May 20, 2014
    Assignee: Sunstar Giken Kabushiki Kaisha
    Inventors: Gun Nakanishi, Shinya Ushiama, Masahiro Ito
  • Patent number: 8354188
    Abstract: A polymer for bonding the positive electrode and negative electrode of a lithium secondary battery, which includes a positive electrode, a negative electrode and an electrolyte solution, with a separator arranged between the positive electrode and the negative electrode. The polymer contains a cationically polymerizable monomer unit (A), a monomer unit (B) providing affinity to the electrolyte solution, a monomer unit (C) providing poor solubility to the electrolyte solution, and a monomer unit (D) containing an anionic or nonionic hydrophilic group. This polymer can be obtained through radical polymerization such as emulsion polymerization or suspension polymerization, and is characterized by having a dissolution rate into a mixed solvent of ethylene carbonate (EC) and diethyl carbonate (DEC) [EC:DEC=5:5 (weight ratio)] of not more than 10% by weight.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: January 15, 2013
    Assignees: Sanyo Electric Co., Ltd., Sunstar Giken Kabushiki Kaisha
    Inventors: Yasuo Takano, Naoki Imachi, Seiji Yoshimura, Shin Fujitani, Satoshi Nishikawa, Shinji Bessyo
  • Patent number: 8304456
    Abstract: An apparatus for mixing a high-viscosity material with a gas and transferring the high-viscosity material mixed with the gas. The apparatus includes a piston pump, a high-viscosity material supply device for supplying a high-viscosity material to the cylinder, a gas supply device for supplying a gas to the cylinder, a piston drive device for driving the piston of the piston pump, a piston stopping device fixed in the cylinder for stopping the piston, a valve device for a high-viscosity material for selectively opening and closing a passage for communication between the high-viscosity material supply device and the cylinder of the piston pump, and a valve device for a gas for selectively opening and closing a passage for communication between the gas supply device and the cylinder of the piston pump.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: November 6, 2012
    Assignee: Sunstar Giken Kabushiki Kaisha
    Inventors: Motoya Kamiyama, Kiichi Yamashita
  • Patent number: 8277897
    Abstract: A reactive polymer-supporting porous film is provided as a battery separator which comprises a porous substrate film and a partially crosslinked reactive polymer supported on the porous substrate film. The partially crosslinked reactive polymer is obtained by the reaction of a crosslinkable polymer having at least one group selected from the 3-oxetanyl group and epoxy group reactive with a polycarboxylic acid. The reactive polymer-supporting porous film has a separator and electrodes sufficiently bonded to each other and with low inner resistance suitably used for production of battery excellent in high rate performance. Further, provided is a method of producing a battery which comprises placing the electrode/reactive polymer-supporting porous film layered body in a battery container; introducing an electrolytic solution containing a cationic polymerization catalyst into the battery container thereby bonding the porous film and electrodes together.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: October 2, 2012
    Assignees: Nitto Denko Corporation, Sunstar Giken Kabushiki Kaisha
    Inventors: Yoshihiro Uetani, Keisuke Kii, Shigeru Fujita, Satoshi Nishikawa, Tatsuya Okuno
  • Patent number: 8277968
    Abstract: Provided is a reactive polymer-supporting porous film for use as a battery separator which comprises a porous substrate film and a partially crosslinked reactive polymer supported on the porous substrate film, the partially crosslinked reactive polymer being obtained by the reaction of a crosslinkable polymer having at least one reactive group selected from the group consisting of 3-oxetanyl group and epoxy group in the molecule with a monocarboxylic acid. Further, provided is a method of manufacturing a battery which comprises layering electrodes on the reactive polymer-supporting porous film.
    Type: Grant
    Filed: January 10, 2006
    Date of Patent: October 2, 2012
    Assignees: Nitto Denko Corporation, Sunstar Giken Kabushiki Kaisha
    Inventors: Tomoaki Ichikawa, Yoshihiro Uetani, Shigeru Fujita, Keisuke Kii, Satoshi Nishikawa, Shinji Bessyo
  • Patent number: 8062387
    Abstract: A reactive polymer-supporting porous film is provided as a battery separator which comprises a porous substrate film and a partially crosslinked reactive polymer supported on the porous substrate film. The partially crosslinked reactive polymer is obtained by the reaction of a crosslinkable polymer having at least one group selected from the 3-oxetanyl group and epoxy group reactive with a polycarboxylic acid. The reactive polymer-supporting porous film has a separator and electrodes sufficiently bonded to each other and with low inner resistance suitably used for production of battery excellent in high rate performance. Further, provided is a method of producing a battery which comprises placing the electrode/reactive polymer-supporting porous film layered body in a battery container; introducing an electrolytic solution containing a cationic polymerization catalyst into the battery container thereby bonding the porous film and electrodes together.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: November 22, 2011
    Assignees: Nitto Denko Corporation, Sunstar Giken Kabushiki Kaisha
    Inventors: Yoshihiro Uetani, Keisuke Kii, Shigeru Fujita, Satoshi Nishikawa, Tatsuya Okuno
  • Patent number: 7943672
    Abstract: A gas mixing/supplying device and a method includes of introducing a gas into a high-viscosity material. The method the steps of effecting a first suction stroke in which the piston (25) is moved in the cylinder (27); supplying a high-viscosity material to the cylinder, using a suction force in the cylinder generated in said first suction stroke; stopping the piston after the first suction stroke; effecting a second suction stroke in which the piston is moved in the cylinder after the supply of the high-viscosity material; supplying a gas to the cylinder, using a suction force in the cylinder generated in the second suction stroke; effecting a pressurizing stroke in which the piston is moved in the cylinder after completion of the supply of the gas; and effecting a discharge stroke in which the high-viscosity material and the gas are discharged into a conduit. Then, the high-viscosity material is foamed under atmospheric pressure.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: May 17, 2011
    Assignee: Sunstar Giken Kabushiki Kaisha
    Inventors: Motoya Kamiyama, Kiichi Yamashita
  • Publication number: 20100280179
    Abstract: The present invention relates to a moisture-curable adhesive composition applicable to production of automobile interior parts, having excellent adhesion to polyolefins such as polypropylene and polyethylene, and having excellent heat resistance. More specifically, the present invention relates to an adhesive composition comprising: a styrene block copolymer (A) having at least one unsaturated bond, a hydrogenated styrene block copolymer (B) having a styrene content of 15% by weight or more, a silane compound (C) having an unsaturated bond, an acid-modified polyolefin resin (D), and a polymerization initiator (E).
    Type: Application
    Filed: December 11, 2008
    Publication date: November 4, 2010
    Applicant: Sunstar Giken Kabushiki Kaisha
    Inventors: Atsushi Uno, Yoshimi Shibata
  • Patent number: 7622525
    Abstract: A two-pack curable composition of the present invention comprises plastisol liquid A which comppounds a thermoplastic resin and a plasticizer, and liquid B which compounds a gelling agent and is characterized in that it has a sprayable viscosity when liquids A and B are mixed and gels within 30 seconds to 60 minutes after application. This two-pack curable composition can be applied in a body-welding step of an automobile manufacturing line as a body or seam sealer (for water-proofing, air-tightness, dust-proofing or rust-prevention of welded areas), an underbody coating (for anti-chipping), or an adhesive.
    Type: Grant
    Filed: August 12, 2004
    Date of Patent: November 24, 2009
    Assignee: Sunstar Giken Kabushiki Kaisha
    Inventors: Masaki Ukai, Hitoshi Ohno, Koichiro Masunaga, Mutsuhisa Miyamoto, Kazunobu Takami
  • Patent number: 7449362
    Abstract: The present invention provides an one-pack thermosetting type epoxy resin composition which is useful as an underfilling material used when a flip chip or a semiconductor package comprised of a semiconductor element held on a carrier base being mounted onto a wiring substrate; which can omit a fluxing process as adopted for improvement of the bonding force of bumps or solder balls particularly at said mounting and exhibits a good voidless property even at a reflow temperature; and which can be also applied as an adhesive, a paint, a coating material, a sealing material, or the like. The one-pack thermosetting type epoxy resin composition of the present invention comprises as essential ingredients, a liquid epoxy resin and a carboxylic acid having two or more carboxylic groups in molecule as a curing agent.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: November 11, 2008
    Assignee: Sunstar Giken Kabushiki Kaisha
    Inventors: Johshi Gotoh, Tatsuya Okuno
  • Patent number: 7445588
    Abstract: An electroconductive roller including an electroconductive cellular material layer, comprised of a polyurethane composition, which has an average foamed cell diameter not more than 100 ?m and a variation ?D of the foamed cell diameter not more than 50 ?m. The electroconductive roller has a hardness variation ?Hs not more than 8 degrees and a circumferential non-uniformity index RMAX/RMIN in an electric resistance thereof not more than 1.3. The electroconductive cellular material layer is made of a thermosetting one-part polyurethane composition. And the polyurethane composition is cured instantly at a temperature not less than a thermosetting critical temperature for curing thereof, after it is foamed by a mechanical foaming method.
    Type: Grant
    Filed: March 8, 2005
    Date of Patent: November 4, 2008
    Assignees: Sumitomo Rubber Industries, Ltd., Sunstar Giken Kabushiki Kaisha
    Inventors: Takayuki Hattori, Kenichi Uesaka, Jun Ochi, Jun Nishibayashi, Shinji Bessyo, Satoshi Tanaka, Masaharu Takada, Shinji Okuda
  • Patent number: 7386482
    Abstract: To realize a unit sales system of an electromotive power assisted bicycle that provides a broad range of flexibility in conformity with requirements of a user, a server computer 1-1 for distributing an electromotive power assisted bicycle according to the present invention comprises a control section 1-2 for providing a general control and management of the computer, a hard disk 1-3 for storing a set of a variety of information for providing the electromotive power assisted bicycle, and a modem 1-4 enabling the connection to a variety of different terminals via a communication network. The hard disk 1-3 stores bicycle information, electromotive power assisting information, user information, physical strength/health information, a variety of different control programs to be downloaded, information about a supplier to which an order is issued, and information about an assembly station and so on.
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: June 10, 2008
    Assignees: Sunstar Giken Kabushiki Kaisha, Sunstar Suisse SA
    Inventors: Kyosuke Kokatsu, Akihito Yoshiie, Fumihito Nigara, Takehiko Ito, Satoshi Maruyama
  • Patent number: 7370720
    Abstract: An electromotive power assisted bicycle includes a drive shaft rotated by a pedal effort a primary sprocket fixed to the drive shaft for transmitting the pedal effort to a drive wheel; a secondary sprocket fixed to the drive shaft coaxially with the primary sprocket; a pedal effort detection sensor; an electromotive power output unit box detachably attached to the body for outputting electromotive power in response to the detected pedal effort; a power sprocket coupled to a rotating output shaft of the electromotive power output unit box; an auxiliary chain stretched between the secondary sprocket and the power sprocket; a supporting section for rotatably supporting the drive shaft; and a unit mounting bracket on which the electromotive power output unit box is mounted, the unit mounting bracket being fixed to the supporting section with the drive shaft penetrating through the unit mounting bracket.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: May 13, 2008
    Assignees: Sunstar Giken Kabushiki Kaisha, Sunstar Suisse SA
    Inventors: Kyosuke Kokatsu, Akihito Yoshiie, Fumihito Nigara
  • Patent number: 7357209
    Abstract: To provide an electromotive power assisted bicycle enabling an aerobic exercise with a light weight and simple mechanism, an electromotive power assisted bicycle 1 comprises a pedal effort detection means for detecting a pedal effort (99, 126), a drive unit 13, a force combining mechanism for transmitting a rotational torque of a speed reducing unit to a drive shaft, and a heart rate detection sensor 254. The drive unit 13 comprises an electric motor 37 and a speed reducing unit 35 having an electromagnetic clutch 250. In a mode enabling the aerobic exercise, if the detected pedal effort is higher than the pedal effort level enabling the aerobic exercise, the drive unit 13 drives the electric motor 37 under the condition of the electromagnetic clutch 250 being engaged and thus assists the pedal effort with the electric force.
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: April 15, 2008
    Assignees: Sunstar Giken Kabushiki Kaisha, Sunstar Suisse SA
    Inventors: Kyosuke Kokatsu, Akihito Yoshiie, Fumihito Nigara
  • Patent number: 7338980
    Abstract: A piston pump has a piston and cylinder. A gas is supplied into the cylinder during and/or after a suction stroke of the piston pump, and a high-viscosity material is supplied into the cylinder after the suction stroke. A discharge stroke of the piston pump is effected after completion of supply of the high-viscosity material to thereby discharge the gas and high-viscosity material into a pipe. Use is made of piston pumps 45A and 45B, each including a cylinder and a piston which reciprocally moves within the cylinder to effect the suction stroke and discharge stroke, and a membrane gas generator 10 to which compressed air is supplied to generate a gas. A low-pressure gas generated by the membrane gas generator 10 is supplied into each piston pump and the high-viscosity material is introduced into the gas.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: March 4, 2008
    Assignees: Sunstar Giken Kabushiki Kaisha, Sunstar Suisse SA
    Inventors: Shinji Okuda, Masaharu Takada, Yasuyuki Yoshimoto
  • Patent number: 7332539
    Abstract: The present invention provides a plastisol composition which combines low temperature baking property and storage stability which are comparable to those of the prior polyvinyl chloride plastisols and has a low-temperature flexibility. The plastisol composition according to the present invention comprises an acrylic plastisol consisting of a plasticizer having acrylic resin particles and a filler dispersed therein and therewith formulated a blocked urethane prepolymer wherein free isocyanate groups of a terminal isocyanate containing urethane prepolymers have been blocked or a blocked polyisocyanate compound and a latent curing agent which is particulate solid at normal temperature, has a melt point of 60° C. or higher, and is insoluble in the plasticizer at 40° C. or lower.
    Type: Grant
    Filed: January 3, 2005
    Date of Patent: February 19, 2008
    Assignees: Sunstar Giken Kabushiki Kaisha, Sunstar Suisse SA
    Inventors: Kenta Nakayama, Hitoshi Ohno, Takashi Minamihori