283 patents
Page 8 of 15
Utility
Polycarbonate diol and producing method thereof, and polyurethane and active energy ray-curable polymer composition both formed using same
2 Feb 21
A novel polycarbonate diol is useful as a raw material for producing a polycarbonate diol-based polyurethane with a high degree of hardness, superior abrasion resistance, and superior hydrophilicity.
Haruhiko Kusaka, Kazuki Wakabayashi, Masanori Yamamoto, Kazunao Kusano, Hiroto Ito, Takashi Komaya, Teruhiko Ohara, Kentaro Uchino, Haruo Iiduka
Filed: 15 Oct 12
Utility
Method for producing mutant enzyme, and mutant alcohol acyltransferase
2 Feb 21
It is intended to provide an efficient method for expressing a protein of interest as an active soluble recombinant protein in a transformant.
Fujio Yu, Wataru Mizunashi
Filed: 28 Feb 19
Utility
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26 Jan 21
This repair method for a hollow fiber membrane module is a method for repairing a leaking section occurring in the hollow fiber membrane module, the repair method having a repair step for using a repair adhesive that hardens due to a composite curing function that comprises a moisture-curing function and a photo-curing function, to repair the leaking section.
Noritaka Shibata, Takashi Hinenoya, Takahiro Mori, Toshinori Tanaka
Filed: 15 Jun 12
Utility
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26 Jan 21
An object of the invention is to provide a filament for a material extrusion-type three-dimensional printer, which filament contains an aromatic polyester resin, and which overcomes the shortcomings of a filament for a material extrusion-type three-dimensional printer that is composed of an ABS resin.
Kosei Yamashita, Shigeyuki Furomoto
Filed: 10 Nov 17
Utility
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26 Jan 21
Provided are a method for producing N-(α-alkoxyethyl)formamide, comprising adding an acid catalyst to the mixed liquid within 3 hours from start of mixing after mixing of N-(α-hydroxyethyl)formamide with an alcohol has been started, by which the N-(α-alkoxyethyl)formamide can be produced at a high yield without additional investment in plant and equipment while suppressing an increase in the temperature of the mixed liquid and preventing corrosion of a pipe; and a method for producing N-(α-alkoxyethyl)formamide, comprising degassing carbon dioxide in the reaction of N-(α-hydroxyethyl)formamide with an alcohol, by which the N-(α-alkoxyethyl)formamide having a decreased carbonate concentration can be produced.
Kouji Teramoto, Yasuharu Mori, Hitoshi Nishimura
Filed: 8 Jan 19
Utility
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26 Jan 21
Yukichi Konami, Seiji Tsuchiya, Yuji Kazehaya
Filed: 4 Oct 18
Utility
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26 Jan 21
A conductive C-plane GaN substrate has a resistivity of 2×10−2 Ω·cm or less or an n-type carrier concentration of 1×1018 cm−3 or more at room temperature.
Yutaka Mikawa, Hideo Fujisawa, Tae Mochizuki, Hideo Namita, Shinichiro Kawabata
Filed: 15 Jul 20
Utility
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12 Jan 21
Provided is a method for manufacturing a fiber-reinforced resin molding material having excellent productivity at low cost for manufacturing a fiber-reinforced resin molded article having excellent strength properties.
Tadao Samejima, Yukihiro Mizutori, Yasushi Watanabe, Junji Kanehagi, Masatoshi Kamata
Filed: 4 May 18
Utility
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12 Jan 21
The present invention relates to a method for manufacturing a fiber-reinforced composite material molding, having a step (A) for forming a plurality of partial preforms, each having a partial shape obtained by dividing the three-dimensional shape of a target fiber-reinforced composite material molding, by cutting a prepreg sheet containing reinforcing fibers and a matrix resin composition, and by preshaping the cut prepreg pieces; a step (B) for forming a preform having the three-dimensional shape of the target fiber-reinforced composite material molding by combining and integrating the plurality of partial preforms; and a step (C) for producing a fiber-reinforced composite material molding by compression-molding the preform, wherein the step (B) includes arranging a foamable material between the plurality of partial preforms when they are combined.
Yoshihide Kakimoto, Kazuhisa Ikeda, Kouichi Akiyama, Mitsuru Kutsuwada
Filed: 19 Feb 15
Utility
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12 Jan 21
A method for producing N-vinylformamide through a vapor-phase thermal decomposition reaction using an evaporator (10) for evaporating a raw material, a thermal decomposition reactor (20) for thermally decomposing a raw material gas generated by the evaporator (10) and a condenser (30) for condensing a thermally decomposed gas generated by the thermal decomposition reactor (20), wherein the evaporation of the raw material is started in the evaporator (10) while the temperature of a tube wall of a first connection tube (40) that connects the evaporator (10) to the thermal decomposition reactor (20) satisfies a requirement represented by formula (1): (temperature of tube wall (° C.))≥0.37×(pressure of evaporator (mmHg))+205.
Noritsugu Ooishi, Kouji Teramoto, Yasuharu Mori
Filed: 21 Mar 19
Utility
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12 Jan 21
Provided are a tow prepreg comprising a reinforcing fiber bundle impregnated with a matrix resin composition, wherein the matrix resin composition contains a component (A) (an epoxy resin), a component (B) (dicyandiamide), a component (C) (a curing accelerator), and a component (D) (a core-shell type rubber particle), and a content of the component (D) with respect to 100 parts by mass of the component (A) is from 20 to 70 parts by mass, a viscosity is from 3 Pa·s to 80 Pa·s at 30° C., and a minimum viscosity to be obtained when a viscosity is measured by raising a temperature from room temperature to 130° C. at a rate of temperature rise of 2.0° C./min is from 0.04 Pa·s to 1 Pa·s, which exhibits excellent drape property and tackiness and less stickiness and can be unwound at a high speed; and a composite material-reinforced pressure vessel having fewer voids in a reinforcing layer which is obtainable by using the tow prepreg, a high burst pressure, and an excellent appearance due to appropriate resin flow.
Satoshi Okamoto, Yukihiro Harada
Filed: 23 May 18
Utility
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12 Jan 21
An object of the present invention is to provide a resin composition for reducing an acetic acid odor that is generated during melt molding of a polyvinyl alcohol (PVA)-based resin and may remain in a molded product.
Yuya Fukamachi
Filed: 2 Mar 20
Utility
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12 Jan 21
One mode of the invention relates to a producing a device for chopped fiber bundles having a chopper unit including a cutting blade for cutting long fiber bundles, a guide for restricting the travel direction of the fiber bundles to be supplied to the cutting means, and a structure, provided between the chopper unit and the guide, that widens the fiber bundles.
Tadao Samejima, Ryuichi Ishikawa, Hiroshi Iwata, Yukihiro Mizutori, Masatoshi Kamata, Yasushi Watanabe, Hajime Okutsu
Filed: 20 Mar 18
Utility
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4 Jan 21
The present invention aims to provide an electrophotographic photoreceptor which is excellent in abrasion resistance against practical load and excellent in initial electrical properties, preferably further excellent in adhesion between layers by containing a polyester resin excellent in abrasion resistance, which is an electrophotographic photoreceptor containing a photosensitive layer and a conductive support, the electrophotographic photoreceptor containing a polyester resin having a specific structure α with a number average molecular weight of 15,000 or less and containing a divalent phenol residue and a divalent carboxylic acid residue.
Atsushi Yoshizawa
Filed: 19 Mar 19
Utility
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21 Dec 20
The invention provides a water-alcohol separation system and a method for water-alcohol separation for producing a high purity alcohol while achieving energy saving as the whole process.
Hideto Hidaka, Yohei Sato
Filed: 15 Sep 19
Utility
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21 Dec 20
An aliphatic dicarboxylic acid, an aliphatic diol or a derivatives thereof and/or as succinic acid, a butane diol, or a both-hydroxy-terminated polyether having the number of carbon atoms of 4 to 1000, each of which is derived from a biomass resource and has nitrogen atoms in an amount of 0.01 to 100 ppm.
Takayuki Aoshima, Yasuaki Miki, Katsuhisa Kumazawa, Satoshi Katou, Tadashi Uyeda, Toyomasa Hoshino, Noboru Shintani, Kenji Yamagishi, Atsushi Isotani
Filed: 28 Feb 19
Utility
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21 Dec 20
Obtained is a polypropylene fiber that selectively satisfies any of the following requirements: the degree of amorphous orientation being not lower than 85%; the degree of crystalline orientation being not lower than 90%; the degree of crystallinity being 60-75%; the strength being not lower than 7 cN/dtex; the initial elastic modulus being not lower than 100 cN/dtex; the rupture elongation being 10-30%; and the single fiber fineness being 3-20 dtex.
Masaki Fujie, Tomoyoshi Yamashita, Hironobu Ikeda, Junya Imakita
Filed: 11 Jul 16
Utility
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7 Dec 20
An ethylene-vinyl alcohol copolymer resin composition pellet group is provided, which is excellent in long-run processability.
Ayano Nakashima, Takamichi Tanabe, Nobuaki Sato, Eisaku Yokoya, Seiichi Honda, Kaoru Inoue
Filed: 20 Dec 16
Utility
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30 Nov 20
Takeshi Nakamura, Yoshie Takami, Tomoko Maeda, Naoko Sumitani, Hiroki Shibata, Toshiki Monden
Filed: 12 Mar 19
Utility
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30 Nov 20
The invention is to provide a method for producing an aqueous resin dispersion capable of forming a coating film superior in adhesion to a polypropylene base material, and water resistance.
Akira Harada, Shinsuke Haraguchi, Motomi Tanaka
Filed: 5 Dec 18