Patents Assigned to KOKI COMPANY LIMITED
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Publication number: 20200325326Abstract: 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: ApplicationFiled: November 1, 2018Publication date: October 15, 2020Applicant: KOKI COMPANY LIMITEDInventors: Takeshi Yahagi, Kazuhiro Yukikata, Koichi Sekiguchi, Yusuke Satoh, Tatsuya Baba, Mitsuyasu Furusawa
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Patent number: 10702956Abstract: 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: GrantFiled: February 5, 2016Date of Patent: July 7, 2020Assignee: KOKI COMPANY LIMITEDInventors: Kazuhiro Yukikata, Yuusuke Sato, Junichi Aoki, Mitsuyasu Furusawa, Kimiaki Mori
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Publication number: 20200187363Abstract: 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: ApplicationFiled: October 2, 2017Publication date: June 11, 2020Applicant: KOKI Company LimitedInventor: Mitsuyasu FURUSAWA
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Patent number: 10610981Abstract: 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: GrantFiled: September 29, 2016Date of Patent: April 7, 2020Assignees: ORIGIN COMPANY, LIMITED, KOKI COMPANY LIMITEDInventors: Yukiko Hayashi, Arisa Shiraishi, Naoto Ozawa, Takayuki Suzuki, Takeshi Shirai, Noriyoshi Uchida, Mitsuyasu Furusawa
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Patent number: 9764430Abstract: 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: GrantFiled: February 19, 2015Date of Patent: September 19, 2017Assignee: KOKI Company LimitedInventors: Atsushi Irisawa, Rie Wada
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Patent number: 9609762Abstract: 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: GrantFiled: March 11, 2013Date of Patent: March 28, 2017Assignee: KOKI Company LimitedInventors: Kenji Arai, Mitsuyasu Furusawa, Junichi Aoki, Mayumi Takada, Munehiko Nakatsuma
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Patent number: 9421646Abstract: 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: GrantFiled: March 9, 2011Date of Patent: August 23, 2016Assignees: KOKI COMPANY LIMITED, PANASONIC CORPORATIONInventors: Atsushi Irisawa, Masashi Kashiwabara, Kenji Kondo, Masahito Hidaka
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Publication number: 20130186519Abstract: 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: ApplicationFiled: March 9, 2011Publication date: July 25, 2013Applicants: PANASONIC CORPORATION, KOKI COMPANY LIMITEDInventors: Atsushi Irisawa, Masashi Kashiwabara, Kenji Kondo, Masahito Hidaka
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Publication number: 20120291922Abstract: 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: ApplicationFiled: December 6, 2010Publication date: November 22, 2012Applicants: ARAKAWA CHEMICAL INDUSTRIES, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA, HARIMA CHEMICALS, INC., FUJITSU TEN LIMITED, KOKI COMPANY LIMITED, DENSO CORPORATIONInventors: 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
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Publication number: 20120291921Abstract: 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: ApplicationFiled: December 6, 2010Publication date: November 22, 2012Applicants: ARAKAWA CHEMICAL INDUSTRIES, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA, HARIMA CHEMICALS, INC., FUJITSU TEN LIMITED, KOKI COMPANY LIMITED, DENSO CORPORATIONInventors: 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
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Publication number: 20110274937Abstract: [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: ApplicationFiled: January 18, 2010Publication date: November 10, 2011Applicants: KOKI COMPANY LIMITED, KABUSHIKI KAISHA NIPPON FILLER METALSInventors: Kenichiro Sugimori, Seiji Yamada, Satoshi Kawakubo, Atsushi Irisawa
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Patent number: 7506741Abstract: 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: GrantFiled: December 13, 2006Date of Patent: March 24, 2009Assignee: Misuzu Koki Company LimitedInventors: Shigeru Yagi, Kazutake Gomi
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Publication number: 20080295353Abstract: 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: ApplicationFiled: April 17, 2008Publication date: December 4, 2008Applicant: MISUZU KOKI COMPANY LIMITEDInventor: Makoto Ogawa
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Publication number: 20080296129Abstract: 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: ApplicationFiled: December 18, 2007Publication date: December 4, 2008Applicant: Misuzu Koki Company LimitedInventors: Shigeru Yagi, Kazutake Gomi
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Publication number: 20070144863Abstract: 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: ApplicationFiled: December 13, 2006Publication date: June 28, 2007Applicant: Misuzu Koki Company LimitedInventors: Shigeru Yagi, Kazutake Gomi
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Publication number: 20030010510Abstract: 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: ApplicationFiled: July 5, 2002Publication date: January 16, 2003Applicant: HITACHI KOKI COMPANY LIMITEDInventors: Takeshi Kamo, Yasuo Sasaki, Michio Wakabayashi
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Patent number: 6341431Abstract: 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: GrantFiled: May 11, 2001Date of Patent: January 29, 2002Assignee: Misuzu Koki Company LimitedInventor: Michlo Noda
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Patent number: 6330405Abstract: 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: GrantFiled: December 11, 2000Date of Patent: December 11, 2001Assignee: Hitachi Koki Company LimitedInventors: Masayoshi Ishii, Hiroyuki Mabuchi, Koji Kato
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Patent number: 6137968Abstract: 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: GrantFiled: October 29, 1999Date of Patent: October 24, 2000Assignee: Hitachi Koki Company LimitedInventors: Kazuo Sunou, Junji Shirakawa, Takayuki Muneyasu
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Patent number: D580247Type: GrantFiled: March 25, 2008Date of Patent: November 11, 2008Assignee: Hitachi Koki Company LimitedInventors: Takeshi Taniguchi, Hitoshi Tsuzuki, Akira Onose