Nippon Zeon Company, Ltd.

Zeon Corporation

Sony Corporation

Haruhisa Yamamoto

Shinichi Akiyama

Koichiro Maeda

Nobuaki Yoneyama

Toshihiro Inoue

Hidenobu Urata

Tatsuo Kinebuchi

Hidenori Sawabe

Kiyomori Ooura

Hiroshi Kobayashi

Takao Suzuki

Akira Nakayama

Kouichirou Maeda

Hiroaki Sakaguchi

Shuichi Akita

Masahiro Yamakawa

Koichi Hasegawa

Kin-ichi Okumura

Hitoshi Kai

Taichi Hirao

Hidekazu Haneda

Katsuhiko Metsugi

Yousuke Morita

Atsuhiro Kanzaki

Keiko Imai

Kenji Wada

Novuaki Yoneyama

Shinji Matsumoto

Shinji Matumoto

An instruction fetch apparatus is disclosed which includes: a program counter configured to manage the address of an instruction targeted to be executed in a program in which instructions belonging to a plurality of instruction sequences are placed sequentially; a change designation register configured to designate a change of an increment value on the program counter; an increment value register configured to hold the changed increment value; and an addition control section configured such that if the change designation register designates the change of the increment value on the program counter, then the addition control section increments the program counter based on the changed increment value held in the increment value register, the addition control section further incrementing the program counter by an instruction word length if the change designation register does not designate any change of the increment value on the program counter.

Instruction fetch apparatus, processor and program counter addition control method

A binder for battery comprising composite polymer particles in which two or more polymers having different chemical structures form a heterogeneous phase structure. Preferably, said two or more polymers include two polymers having a glass transition temperature (Tg) different from each other by 5&#xb0; C. or more. When a slurry prepared by mixing the binder with a liquid material and an active material is used for the production of an electrode for a secondary battery, especially, a lithium secondary battery, the resulting battery exhibits an improved performance because the slurry imparts a well-balanced binding power and a binding durability.

Binder for battery, slurry for battery electrode, electrode for lithium secondary battery, and lithium secondary battery

A binder for a lithium ion secondary battery characterized by comprising a polymer containing structural units derived from 1,3-butadiene, said polymer having a 1,2-vinyl structure content in the range of 2% to 25% by mole. A lithium ion secondary battery provided with an electrode made using this binder exhibits improved characteristics at repetition of charge-discharge cycle and improved storage stability.

Binder for electrode for lithium ion secondary battery, and utilization thereof

A binder composition used for making an electrode for a lithium-ion secondary battery, which comprises polymer particles dispersed in an organic medium having a boiling point of 80-350&deg; C. at normal pressure. The polymer (1) comprises structural units derived from a monoethylenically unsaturated carboxylic acid ester monomer, and at least one kind of structural units selected from (b) structural units derived from a monoethylenically unsaturated carboxylic acid monomer and (c) structural units derived from a conjugated diene monomer; (2) has a ratio of (a)/&lsqb;(b)&plus;(c)&rsqb; of 99/1&minus;60/40 by weight; (3) has a total content of (a), (b) plus (c) of at least 80 wt. % based on the total structural units; and (4) is substantially free from structural units of a monoethylenically aromatic hydrocarbon monomer. A lithium-ion secondary battery having an electrode made with the binder exhibits a large service capacity and enhanced charge-discharge characteristics at a high temperature.

Binder composition for electrode for lithium-ion secondary battery and utilization thereof

A polymer binder for an electrode is provided, which is comprised of a polymer comprising (a) structural units derived from a monofunctional ethylenically unsaturated carboxylic acid ester monomer, (b) structural units derived from an ethylenically unsaturated carboxylic acid monomer, and (c) structural units derived from a methacrylonitrile monomer; the ratio of &lsqb;(a)&plus;(c)&rsqb;/(b) being 99.9 to 1.5 by weight; the sum of (a)&plus;(b)&plus;(c) being at least 70 wt. % based on the total structural units of the polymer; and the polymer being substantially free from structural units derived from an ethylenically hydrocarbon monomer and structural units derived from a diene monomer. The binder exhibits enhanced electrochemical stability and is useful for making an electrode of a lithium ion secondary battery.

A polymer dispersion composition obtained by dispersing an electrode active material and a polymer having a gel content of 50% or more in an organic dispersion medium of which boiling point at 760 mmHg is 80&deg; C. or above. The composition is successfully usable as, for instance, a binder composition for batteries, and the battery produced therefrom is high in initial capacity and small in the drop of capacity.

High gel-content polymer dispersed in a high-boiling organic medium

An alkaline secondary battery comprising an electrolyte such as aqueous solution of potassium hydroxide, at least one cathode electrode, at least one anode electrode having an anode active material layer, and a separator such as non-woven fabric between the anode electrode and the cathode electrode, in which the anode active material layer containing an anode active material such as a hydridable alloy or a cadmium alloy, and an anode binder which includes a nonionic polymer produced by emulsion polymerization of a nonionic monomer in the presence of a nonionic surfactant, and in which the electrolyte essentially surrounds the cathode electrode and the anode electrode.

Alkaline secondary battery having an anode comprising a non ionic polymer binder

A process for preparation of a rubber composition which comprises mixing a modified diene polymer wherein at least one functional group represented by the formula &gt;C.dbd.N.sup.+ &lt; was bound to the main chain of the polymer or the main chain and terminal of the polymer directly or through another atomic group, with carbon black in an organic solvent, and separately the mixture of the modified diene polymer with carbon black from the resultant mixture solution.

Process for preparation of rubber composition and rubber composition

A magnetic powder for magnetic recording media, which has an average particle diameter of at most 0.1 .mu.m and is represented by the following general composition formula:

Magnetic powder for magnetic recording media

A magnetic powder for magnetic recording media, which has an average particle diameter of at most 0.08 .mu.m and a ratio of the maximum diameter to the maximum thickness of at most 8 and is represented by the following general composition formula:

Disclosed herein is a method of producing a magnetic recording medium, wherein a magnetic coating formulation containing a hexagonal ferrite magnetic powder is applied to the surface of a substrate. It is characterized in that the hexagonal ferrite magnetic powder is represented by the following general composition formula [I] and has an average particle diameter of at most 0.1 .mu.m , a ratio of the maximum diameter to the maximum thickness (a plate ratio) of at most 15, a particle size distribution (.sigma.gd) of at most 3.4 in terms of the geometric standard deviation based on the number and a coercive force of 200-3,000 oe, and a solvent containing at least 15 wt. % of at least one ketone compound having at most 10 carbon atoms is used in the magnetic coating formulation.

Method of producing magnetic recording media

A magnetic powder for magnetic recording which has an average particle diameter of 0.01 to 0.3 micrometers and is represented by the following general composition formula

Magnetic powder for magnetic recording

A process for producing butadiene which comprises (1) a reaction step of forming butadiene by gas-phase catalytic oxidative dehydrogenation of n-butene, (2) a cooling step of cooling the resulting gas discharged from the reaction step (1) to remove trace amounts of high boiling by-products contained in the resulting gas, (3) an aldehyde removal step of removing small amounts of aldehydes contained in the cooled gas discharged from the cooling step (2), (4) a compression step of compressing the gas discharged from the aldehyde removal step (3), and (5) a C.sub.4 component recovery step of recovering a C.sub.4 component containing butadiene and other C.sub.4 hydrocarbons from the compressed gas discharged from the compression step (4).

Process for producing butadiene

In a process for preparing methacrylic acid by the vapor-phase catalytic oxidation of methacrolein or a methacrolein-containing mixture with molecular oxygen in the presence of an oxidation catalyst; the improvement wherein said process comprises a first-stage oxidation step of oxidizing methacrolein or a methacrolein-containing mixture as a starting material, a first-stage separating step of separating the resulting methacrylic acid from the reaction product obtained in the first-stage oxidation step, a second-stage oxidation step of oxidizing the mixture containing the unreacted methacrolein and obtained in the first-stage separating step, and a second-stage separating step of separating the resulting methacrylic acid from the reaction product obtained in the second-stage oxidation step, and with or without at least one additional oxidation step and separating step subsequent to the second-stage separating step, and wherein the conversion of methacrolein in the first-stage oxidation step is adjusted to 30-85 mole % and the final conversion of methacrolein is adjusted to at least 90 mole %.

Process for preparing methacrylic acid

A process for producing a conjugated diolefin, which comprises oxidatively dehydrogenating a monoolefin having at least 4 carbon atoms in the vapor phase with molecular oxygen to form the corresponding conjugated diolefin, said reaction being carried out in the presence of a catalyst having the general composition formula

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Takaoka, Japan

Haruhisa Yamamoto