Patents Assigned to KOKI COMPANY LIMITED
  • Publication number: 20200325326
    Abstract: Containing an epoxy compound and a curing agent and containing a bisphenol E type epoxy resin as the epoxy compound in an amount of 25 mass % or more and 100 mass % or less relative to the total amount of the epoxy compound.
    Type: Application
    Filed: November 1, 2018
    Publication date: October 15, 2020
    Applicant: KOKI COMPANY LIMITED
    Inventors: Takeshi Yahagi, Kazuhiro Yukikata, Koichi Sekiguchi, Yusuke Satoh, Tatsuya Baba, Mitsuyasu Furusawa
  • Patent number: 10702956
    Abstract: Provided is a flux activator containing a halogen compound represented by formula 1 below: where X1 and X2 represent different halogen atoms, R1 and R2 are each a group represented by any one of formulas —OH, —O—R3, —O—C(?O)—R4, and —O—C(?O)—NH—R5, R1 and R2 optionally represent the same group or different groups, R3, R4, and R5 are each an aromatic hydrocarbon group having 1 to 18 carbon atoms or an aliphatic hydrocarbon group having 1 to 18 carbon atoms, and R3, R4, and R5 optionally represent the same group or different groups.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: July 7, 2020
    Assignee: KOKI COMPANY LIMITED
    Inventors: Kazuhiro Yukikata, Yuusuke Sato, Junichi Aoki, Mitsuyasu Furusawa, Kimiaki Mori
  • Publication number: 20200187363
    Abstract: A flux includes: at least one liquid solvent that has one or more hydroxy groups and is liquid at ordinary temperature; and at least two solid solvents that respectively have one or more hydroxy groups and are solid at normal temperature, in which the content of each of the solid solvents is less than 40 mass % based on the total content of the liquid solvent and the solid solvents.
    Type: Application
    Filed: October 2, 2017
    Publication date: June 11, 2020
    Applicant: KOKI Company Limited
    Inventor: Mitsuyasu FURUSAWA
  • Patent number: 10610981
    Abstract: The present invention provides a solder paste free of reducing agents and activators, and a method for producing a soldered product in which the solder paste is used to achieve solder bonding. The solder paste for reducing gas of the present invention is a solder paste for reducing gas used together a reducing gas. The solder paste contains a solder powder; a thixotropic agent that is solid at normal temperature; and a solvent, and is free of reducing agents for removal of oxide films and free of activators for improvement of reducibility.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: April 7, 2020
    Assignees: ORIGIN COMPANY, LIMITED, KOKI COMPANY LIMITED
    Inventors: Yukiko Hayashi, Arisa Shiraishi, Naoto Ozawa, Takayuki Suzuki, Takeshi Shirai, Noriyoshi Uchida, Mitsuyasu Furusawa
  • Patent number: 9764430
    Abstract: Provided are a lead-free solder alloy which consists of Sb in an amount of more than 3.0% but 10% or less by mass, and the balance including Sn, and others.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: September 19, 2017
    Assignee: KOKI Company Limited
    Inventors: Atsushi Irisawa, Rie Wada
  • Patent number: 9609762
    Abstract: Provided is a flux that includes at least one polybutadiene (meth)acrylate compound selected from polybutadiene (meth)acrylate compounds and polybutadiene (meth)acrylate compounds, and a hydrogenated dimer acid.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: March 28, 2017
    Assignee: KOKI Company Limited
    Inventors: Kenji Arai, Mitsuyasu Furusawa, Junichi Aoki, Mayumi Takada, Munehiko Nakatsuma
  • Patent number: 9421646
    Abstract: The object of the present invention is to provide a solder paste that enables to form a surface mounting structure for electronic components that exhibits crack resistance in a solder joint section even in 100 heat-shock cycles at ?40° C. to 150° C. as required for use in the vicinity of engines for vehicular applications. A flux including an amine halogen salt and a dicarboxylic acid is kneaded with a Sn—Ag—Bi—In alloy powder. As a result, a solder paste exhibiting long continuous printability, little occurrence of solder balls, and excellent joining ability with no cracking in 100 heat-shock cycles at ?40° C. to 150° C. is obtained.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: August 23, 2016
    Assignees: KOKI COMPANY LIMITED, PANASONIC CORPORATION
    Inventors: Atsushi Irisawa, Masashi Kashiwabara, Kenji Kondo, Masahito Hidaka
  • Publication number: 20130186519
    Abstract: The object of the present invention is to provide a solder paste that enables to form a surface mounting structure for electronic components that exhibits crack resistance in a solder joint section even in 100 heat-shock cycles at ?40° C. to 150° C. as required for use in the vicinity of engines for vehicular applications. A flux including an amine halogen salt and a dicarboxylic acid is kneaded with a Sn—Ag—Bi—In alloy powder. As a result, a solder paste exhibiting long continuous printability, little occurrence of solder balls, and excellent joining ability with no cracking in 100 heat-shock cycles at ?40° C. to 150° C. is obtained.
    Type: Application
    Filed: March 9, 2011
    Publication date: July 25, 2013
    Applicants: PANASONIC CORPORATION, KOKI COMPANY LIMITED
    Inventors: Atsushi Irisawa, Masashi Kashiwabara, Kenji Kondo, Masahito Hidaka
  • Publication number: 20120291922
    Abstract: A solder paste according to an aspect of the invention includes, within a flux, an activator that has a dibasic acid with a molecular weight of 250 or less, a monobasic acid with a molecular weight of 150 or greater and 300 or less, and a dibasic acid with a molecular weight of 300 or greater and 600 or less; and at least one resin additive selected from the group consisting of high-density polyethylenes and polypropylenes. The solder paste has the resin additive in an amount of 4% by weight or greater and 12% by weight or less when the total amount of the flux is taken as 100% by weight, and has a viscosity of 400 Pa·s or greater at 80° C.
    Type: Application
    Filed: December 6, 2010
    Publication date: November 22, 2012
    Applicants: ARAKAWA CHEMICAL INDUSTRIES, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA, HARIMA CHEMICALS, INC., FUJITSU TEN LIMITED, KOKI COMPANY LIMITED, DENSO CORPORATION
    Inventors: Eiji Iwamura, Kazushi Gotoh, Fumio Ishiga, Takayasu Yoshioka, Masayoshi Utsuno, Atsuo Nakamura, Teruo Okochi, Masaki Sanji, Takuji Sukekawa, Kenshi Ikedo, Yoshiyuki Andoh, Takeshi Shirai, Kimiaki Mori, Rie Wada, Kensuke Nakanishi, Masami Aihara, Seishi Kumamoto
  • Publication number: 20120291921
    Abstract: A flux for a solder paste according to an aspect of the invention includes an acrylic resin obtained by radically copolymerizing a (meth)acrylate having a C6-C15 alkyl group and a (meth)acrylate other than the above-mentioned (meth)acrylate; and rosins. The weight ratio of the acrylic resin is 0.5 or greater and 1.2 or less when the weight of the rosins is taken as 1, and the flux for a solder paste is fluidized by application of a shear force of 10 Pa or greater and 150 Pa or less.
    Type: Application
    Filed: December 6, 2010
    Publication date: November 22, 2012
    Applicants: ARAKAWA CHEMICAL INDUSTRIES, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA, HARIMA CHEMICALS, INC., FUJITSU TEN LIMITED, KOKI COMPANY LIMITED, DENSO CORPORATION
    Inventors: Eiji Iwamura, Kazushi Gotoh, Shinsuke Nagasaka, Takayasu Yoshioka, Masayoshi Utsuno, Atsuo Nakamura, Teruo Okochi, Masaki Sanji, Takuji Sukekawa, Kenshi Ikedo, Yoshiyuki Andoh, Takeshi Shirai, Kimiaki Mori, Rie Wada, Kensuke Nakanishi, Masami Aihara, Seishi Kumamoto
  • Publication number: 20110274937
    Abstract: [PROBLEMS TO BE SOLVED] To provide a low-silver lead-free solder alloy having an excellent wettability and being excellent in heat-fatigue resistance, and a solder-paste soldering material and resin-flux cored soldering material being excellent in fatigue resistance, and a joined product by using the soldering material. [MEANS FOR SOLVING] 0.1 to 1.5% by weight of Cu, 0.01% by weight or more and less than 0.05% by weight of Co, 0.05 to 0.25% by weight of Ag, 0.001 to 0.008% by weight of Ge, and the remainder being Sn. This low silver lead-free solder alloy is blended with a pasty flux or molded in a liner form by using a solid or pasty flux as a core. [SELECTED FIGURE] FIG.
    Type: Application
    Filed: January 18, 2010
    Publication date: November 10, 2011
    Applicants: KOKI COMPANY LIMITED, KABUSHIKI KAISHA NIPPON FILLER METALS
    Inventors: Kenichiro Sugimori, Seiji Yamada, Satoshi Kawakubo, Atsushi Irisawa
  • Patent number: 7506741
    Abstract: The present invention is a wheel conveyor comprising side frames, plate-shaped stays provided with wheel unit attachment grooves at an upper surface, and wheel units having fixed projections capable of being inserted into the wheel unit attachment grooves provided on an upper surface of the plate-shaped stays, the wheel units comprising two wheel attachment bodies, and a wheel rotatably provided between the two wheel attachment bodies, wherein, on plate-shaped stays provided spanning in a longitudinal direction across the side frames, one or a plurality of wheel units are detatchably attached in a line arrangement in a longitudinal direction of the side frames, and one or a plurality are detatchably attached in a line or interleaved arrangement in a widthwise direction.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: March 24, 2009
    Assignee: Misuzu Koki Company Limited
    Inventors: Shigeru Yagi, Kazutake Gomi
  • Publication number: 20080295353
    Abstract: In a factory that uses a large number of containers, it is necessary to ensure an installation location for a container washing device that is absolutely necessary as a preprocess for a container drying device. A container washing and centrifugal drying device has an exterior section having a door section, and having a container washing and centrifugal drying unit that comprises a turntable on which tacked containers are placed inside the exterior section, each of two columns erected at opposing position the same distance from the rotational center of the turntable on an upper part of the turntable, a clamp opening and closing cylinder for opening and closing clamp sections, and a plurality of washing tubes provided in a vertical direction at substantially equal intervals in a circumferential direction on the outer periphery spaced apart from the turntable, each of the washing tubes being provided with a plurality of washing nozzles at equal intervals in the vertical direction facing inwards.
    Type: Application
    Filed: April 17, 2008
    Publication date: December 4, 2008
    Applicant: MISUZU KOKI COMPANY LIMITED
    Inventor: Makoto Ogawa
  • Publication number: 20080296129
    Abstract: To simplify repair and maintenance of a link conveyor and link section by providing a link conveyor that can be freely attached and detached to a link section of a drive conveyor.
    Type: Application
    Filed: December 18, 2007
    Publication date: December 4, 2008
    Applicant: Misuzu Koki Company Limited
    Inventors: Shigeru Yagi, Kazutake Gomi
  • Publication number: 20070144863
    Abstract: The present invention is a wheel conveyor comprising side frames, plate-shaped stays provided with wheel unit attachment grooves at an upper surface, and wheel units having fixed projections capable of being inserted into the wheel unit attachment grooves provided on an upper surface of the plate-shaped stays, the wheel units comprising two wheel attachment bodies, and a wheel rotatably provided between the two wheel attachment bodies, wherein, on plate-shaped stays provided spanning in a longitudinal direction across the side frames, one or a plurality of wheel units are detatchably attached in a line arrangement in a longitudinal direction of the side frames, and one or a plurality are detatchably attached in a line or interleaved arrangement in a widthwise direction.
    Type: Application
    Filed: December 13, 2006
    Publication date: June 28, 2007
    Applicant: Misuzu Koki Company Limited
    Inventors: Shigeru Yagi, Kazutake Gomi
  • Publication number: 20030010510
    Abstract: Two guide members cooperatively constitute a chuck portion for holding a screw head. Opening and closing of the chuck portion is regulated depending on a mutual position between a machine body and a member into which a screw is driven. Guide pin portions of respective guide members engage with a stopper portion of a push lever until a screw is driven to a predetermined depth. The chuck potion tightly holds the screw head until a screw fastening operation is substantially finished, thereby suppressing the lifting of a machine body.
    Type: Application
    Filed: July 5, 2002
    Publication date: January 16, 2003
    Applicant: HITACHI KOKI COMPANY LIMITED
    Inventors: Takeshi Kamo, Yasuo Sasaki, Michio Wakabayashi
  • Patent number: 6341431
    Abstract: In a conventional container centrifugal drying device, a problem exists in that a member is easily corroded by a detergent in use for a long period, and a rotating portion is heavy in weight so that energy at accelerating and decelerating times is large.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: January 29, 2002
    Assignee: Misuzu Koki Company Limited
    Inventor: Michlo Noda
  • Patent number: 6330405
    Abstract: In an image forming apparatus, the developing unit includes two developing rollers whose rotational directions are different from each other, and a bias potential of the developing roller (first developing roller) located upstream in the rotational direction of the photosensitive member is selected to be a potential, which is in value between a bias potential of the developing roller (second developing roller) located downstream in the same direction and a background potential.
    Type: Grant
    Filed: December 11, 2000
    Date of Patent: December 11, 2001
    Assignee: Hitachi Koki Company Limited
    Inventors: Masayoshi Ishii, Hiroyuki Mabuchi, Koji Kato
  • Patent number: 6137968
    Abstract: There are disposed optical sensors (S1, S2, S3,S4, S5, and S6) outside sheet trays (1, 2, 3). The optical axes of the optical sensors are respectively set in such a manner that they are parallel to their associated up-down tables (1a, 2a, and 3a) and pass upwardly of contact positions (A, B and C) between sheets (P) and sheet supply rollers (20, 21, and 22).
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: October 24, 2000
    Assignee: Hitachi Koki Company Limited
    Inventors: Kazuo Sunou, Junji Shirakawa, Takayuki Muneyasu
  • Patent number: D580247
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: November 11, 2008
    Assignee: Hitachi Koki Company Limited
    Inventors: Takeshi Taniguchi, Hitoshi Tsuzuki, Akira Onose