Yamaguchi, Japan
Yamaguchi, Japan

Ube Industries, Ltd. is a Japanese chemical company manufacturing chemicals, plastics, battery materials, pharmaceuticals, cement, construction materials and machinery.The company was founded in 1897 when Sukesaku Watanabe —an industrialist, a member of the House of Representatives of Japan and a deputy mayor of Ube— established Okinoyama Coal Mine, the predecessor of the present Ube industries.Since then, the company has established six core business units: Chemicals & plastics, specialty chemicals & products, cement, pharmaceuticals, machinery and metal products, energy and environment. The company is listed on the Tokyo Stock Exchane and Fukuoka Stock Exchange and is a constituent of the Nikkei 225 stock index. Wikipedia.

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Patent
Ube Industries | Date: 2017-02-22

An electrode is produced by forming an electrode layer on a surface of a current collector using an electrode composition containing a binder including a polyamide acid that is obtained from a specific aromatic tetracarboxylic acid compound and a diamine component containing a diamine having a carboxyl group, and subsequently performing heat treatment to remove a solvent and perform an imidization reaction of the polyamide acid. It is preferable that the electrode composition further contains a crosslinking agent having an epoxy group or an oxazoline group. It is also preferable that the electrode composition further contains a pyridine compound.


Provided is a lithium titanate powder for an electrode of an energy storage device, an active material containing the same, and an energy storage device using the active material. The lithium titanate powder comprises Li_(4)Ti_(5)O_(12) as a main component, and wherein, when a volume surface diameter calculated from specific surface area determined by the BET method is D_(BET) and a crystallite diameter calculated from half-peak width of (111) plane of Li_(4)Ti_(5)O_(12) by the Scherrer equation is D_(x), D_(BET) is 0.1 to 0.6 m; D_(X) is larger than 80 nm; D_(BET)/D_(X) (m/m), ratio of D_(BET) to D_(X), is 3 or less; M (wherein M is at least one type of metal element selected from a group consisting of Mg, Zn, Al, Ga, and In) is contained; and when atomic concentrations of the M and titanium at 5 nm inner positions from a surface of a lithium titanate particle are D1 (atm%) and Dti (atm%) respectively, and when atomic concentration of the M at 100 nm inner position from the lithium titanate particle surface is D2 (atm%), following formulas (I) and (II) are satisfied.


Disclosed is an asymmetric gas separation membrane made of a soluble aromatic polyimide having a specific repeating unit, the soluble aromatic polyimide including: as a tetracarboxylic acid component, a biphenyl structure and a phenyl structure; as a diamine component, a 3,3-diaminodiphenyl sulphone and a diaminodibenzothiophene, a diaminodibenzothiophene=5,5-dioxide, a diaminothioxanthene-10,10-dione, or a diaminothioxanthene-9,10,10-trione. Disclosed is a method for selectively separating and recovering a specific gas species from a mixed gas composed of a plurality of gas species using the asymmetric gas separation membrane, a method for selectively separating and recovering a nitrogen-rich gas from air using the asymmetric gas separation membrane, and a method for selectively separating carbon dioxide gas from a mixed gas containing carbon dioxide and methane and recovering methane-rich gas using the asymmetric gas separation membrane.


A powder of acicular strontium carbonate particles comprises primary particles having a mean longitudinal diameter in the range of 5 to 50 nm and a mean aspect ratio in the range of 2.2 to 5.0, and a dispersion liquid in which the powder of acicular strontium carbonate particles is dispersed in an organic solvent substantially in the form of primary particles; which preferably have a surface active agent having a hydrophilic group, a hydrophobic group and a group forming an anion in water attached to their surfaces.


An objective of the present invention is to provide a ceramic composite material for light conversion which exhibits excellent heat resistance, durability, and the like as a light converting member of an optical device such as a white light emitting diode, easily controls the ratio of light from a light source and fluorescence, can reduce color unevenness and variance of emitted light, and has high internal quantum efficiency and fluorescence intensity, a method for producing the same, and a light emitting device which includes the same and has high light conversion efficiency. Provided is a ceramic composite material for light conversion including: a fluorescence phase; and a light transmitting phase, the fluorescence phase being a phase containing Ln_(3)Al_(5)O_(12):Ce (Ln is at least one element selected from Y, Lu, and Tb, and Ce is an activation element), and the light transmitting phase being a phase containing LaAl_(11)O_(18).


A nonaqueous electrolytic solution having an electrolyte salt dissolved in a nonaqueous solvent, the nonaqueous electrolytic solution containing a lithium salt having a specific ,-dihydroxy carboxylic acid ester structure, phosphono hydroxy carboxylic acid structure, alkoxycarbonyl hydroxy carboxylic acid structure, or formyloxy structure; an energy storage device using the nonaqueous electrolytic solution; and a lithium salt used for the nonaqueous electrolytic solution. This nonaqueous electrolytic solution makes it possible not only to improve the electrochemical characteristics when the energy storage device is used at a high temperature and a high voltage and to improve the capacity retention rate after high-voltage and high-temperature storage, but also to suppress gas generation.


Patent
Ube Industries | Date: 2017-04-05

The present invention relates to a polyamide resin comprising a unit derived from -caprolactam and/or -aminocaproic acid (to also be referred to as Unit 1 ), a unit derived from adipic acid (to also be referred to as Unit 2) and a unit derived from hexamethylenediamine (to also be referred to as Unit 3), wherein the concentration of terminal amino groups in the polyamide resin is greater than the concentration of terminal carboxyl groups in the polyamide resin, and the amount of Unit 1 is greater than 60% by weight to less than 80% by weight of the total amount of Unit 1, Unit 2 and Unit 3.


Disclosed are a non-aqueous electrolytic solution, which can improve cycle characteristics when a power storage device is used at high temperature and high voltage, and a power device using the same. The non-aqueous electrolytic solution according to the present invention comprises, in addition to a non-aqueous solvent and an electrolyte salt dissolved therein, a compound represented by the following formula (I):


Patent
Ube Industries | Date: 2017-04-12

The present invention relates to a method for producing a polyimide film, comprising steps of:applying a polyamic acid solution composition, which comprises at least one solvent selected from the group consisting of N-methylformamide, N,N-dimethylpropionamide, N,N-dimethylisobutylamide and tetramethylurea, and a polyamic acid, to a substrate; and thenimidizing the polyamic acid by subjecting the composition to heat treatment, to obtain the polyimide film.


Patent
Ube Industries | Date: 2017-09-13

Provided is a phosphor represented by a composition of the following formula (1),(Sr_(a),Ba_(b),Ca_(c),Eu_(x),M^(1)_(d),M^(2)_(e))SiO_(f)gMgO formula (1)(here, M^(1) represents at least one group 3 element selected from Lu and Sc, M^(2) represents an alkali metal element selected from Li, Na, and K, and 0 < a 2, 0 < b 2, 0 c 2, 0.0015 d 0.045, 0 e 0.06, 0 < x 0.1, 3.7 f 4.1, and 0 g 1 are satisfied). In addition, provided is a light-emitting device including the phosphor and a light source for irradiating the phosphor with excitation light to cause the phosphor to emit light.

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