Tdk Corporation

Seikosha Co., Ltd.

Canon Kabushiki Kaisha

Nec Corporation

Mitsubishi Electric Corporation

Stanley Electric Co., Ltd

Matsushita Electric Industrial Co., Ltd.

Mitsubishi Denki Kabushiki Kaisha

Fuji Photo Film Company, Limited

Mitsubishi Chemical Corporation

Other

Toyota Jidosha Kabushiki Kaisha

Mitsubishi Heavy Industries Limited

Hitachi, Ltd.

Alps Electric Co., Ltd.

Hiroyuki Sato

Goro Takeuchi

Yo Saito

Makoto Numata

Masayuki Okura

Akihiro Konno

Hitoshi Tanaka

Yoshinori Suzuki

Takahiro Watanabe

Yasushi Shimizu

Masahiro Yamazaki

Katsumi Yoshida

Hikaru Saijo

Takeo Takahashi

Izumi Mikami

Fuminori Kobayashi

Izuru Naito

Atsushi Yamamoto

Akira Hasegawa

Tsuyoshi Ishikawa

Akio Tajima

Kenichi Suzuki

Junichi Nakamura

Kazuhiko Takahashi

Yasushi Yatsuda

Tomohiro Mizuno

Junichi Saito

Satoshi Sugita

Yasushi Misawa

Kazuyuki Yamane

Akihiko Takahashi

Hiroaki Tsutsui

Shinichi Yamamoto

Mikiko Saito

Takashi Iwakura

Naoki Hayashi

Toshiaki Asakura

Takuma Kobayashi

Nobuhiro Tanaka

Toshiyuki Hoshi

Kunio Hakkaku

Satoru Yamano

Seishi Takahashi

Ryuichi Tanaka

Osamu Taguchi

Ken-Ichi Takaki

Koutaro Yamaguchi

Shunsuke Abe

Kotaku Saigusa

Hitoshi Yauchi

Hajime Sawaya

Yoshinobu Fukuda

Haruki Mokudai

Ryo Kato

Kuniaki Ara

Masahiko Nagai

Takeshi Yamada

Takahiro Hayashi

Akihiro Miyashita

Hiroshi Hanzawa

Shuji Nuimura

Fumio Akutsu

Yu Shigenari

Shuichi Taya

Eisaku Okada

Kazuyuki Murakami

Shinji Tomobe

Yasuhiro Miyasaka

Toshiyuki Horie

Seiya Inoue

Fumio Maeda

Satoshi Terashita

Hiroshi Ikematsu

Hirokazu Oikawa

Tatsuo Sugawara

Hiroshi Ohmura

Nobuki Oka

Hisaaki Terashima

Koichi Sugiyama

Takaomi Nakayama

Takashi Masaki

Shuichi Aratsu

Tadashi Matsushita

Yui Yoshida

Chikako Ikeda

Yasukazu Murata

Tatsuaki Miyashita

Yasuhisa Osumi

Ryusuke Morita

Takehisa Kimura

Nobuyuki Mineta

Fumiya Yoshida

Katsuhiro Shiota

Yoshihisa Kagawa

Takao Matsumura

Kenji Ohshima

Akiko Watanabe

Makio Tsuchiya

Akihiko Nishizaki

Toshio Ikeda

Produce prepreg with a matrix resin adhering to the cloth. Arranging a release sheet on each surface of the cloth; passing the cloth and a pair of the release sheets through a gap portion positioned in a clearance of a pair of heating rollers to be overlaid on each other and supplying the matrix resin to be accumulated above the gap portion of the heating rollers and between the pair of release sheets; and adjusting an interval of the pair of heating rollers to thereby control an adhesion amount of the matrix resin.

Prepreg continuous production device and method therefor

Disclosed is a method for treating osteoarthritis comprising a step of administering a patch to a patient. The patch comprises a backing layer and an adhesive layer laminated on the backing layer, the adhesive layer comprises an adhesive base, diclofenac sodium, dimethyl sulfoxide, and an organic acid, and a content of the organic acid is 6 mass % to 8 mass % with respect to a total mass of the adhesive layer. The patch is applied to an affected part once a day, and a dose of diclofenac sodium per administration is 70 mg to 150 mg.

Method for treating osteoarthritis

A rotary connector includes a case including a housing space and fixed to a vehicle body that includes a steering wheel including a steering-side electric component, a rotor that is rotatable around a rotational axis relative to the case, a first connector provided on the rotor and electrically connected to the steering-side electric component, a second connector provided on the case and electrically connected to a vehicle-side electric component in the vehicle body, a flexible cable that is provided in a wound state in the housing space of the case and electrically connects the first connector to the second connector, and a controller that is disposed between the first connector and the flexible cable and performs a predetermined process on an electric signal transmitted between the first connector and the flexible cable. The controller is configured to rotate together with the rotor.

Rotary connector

Provided is a molded article comprising an aliphatic polyester. The aliphatic polyester is at least one selected from the group consisting of polyglycolic acid and a copolymer of a glycolic acid monomer and a monomer other than the glycolic acid monomer. The molded article has a uniaxial compressive strength at a temperature of 23&#xb0; C. of greater than 250 MPa and not greater than 350 MPa.

Molded article and use of same

The present invention provides a method for producing granular polyarylene sulfide (PAS) with increased average particle size and enhanced particle strength, a method for increasing the average particle size of granular PAS, a method for enhancing the particle strength of granular PAS, and granular PAS. The method for producing PAS according to the present invention includes: step 1: a preparation step of preparing a mixture containing an organic amide solvent, a sulfur source, water, a dihalo aromatic compound, and an alkali metal hydroxide; step 2: a pre-stage polymerization step of initiating a polymerization reaction by heating the mixture to produce a prepolymer having a dihalo aromatic compound conversion ratio of not less than 50% in the presence of less than an equimolar amount of an alkali metal hydroxide per 1 mol of the sulfur source; step 3: a post-stage polymerization step of continuing the polymerization reaction in the presence of not less than an equimolar amount of an alkali metal hydroxide per 1 mol of the sulfur source to obtain a reaction product mixture; and step 4: a cooling step of cooling the reaction product mixture after the post-stage polymerization step; wherein step 4 is performed in the presence of at least one type of auxiliary agent such as a carboxylate.

Method for producing granular polyarylene sulfide, method for increasing average particle size of granular polyarylene sulfide, method for enhancing particle strength of granular polyarylene sulfide, and granular polyarylene sulfide

The present invention is to provide a method that can produce polyarylene sulfide having a high viscosity at a high yield. The method of producing polyarylene sulfide according to an embodiment of the present invention includes: a preparation step of preparing a mixture containing an organic amide solvent, a sulfur source, a dihalo aromatic compound, and an alkali metal hydroxide; a first-stage polymerization step of initiating a polymerization reaction by heating the mixture and producing a prepolymer until a pH of a reaction system reaches a range of 10 to 11; and a second-stage polymerization step of continuing the polymerization reaction.

Method of producing polyarylene sulfide

A method of producing a polyarylene sulfide (PAS) includes a preparation step of preparing a charged mixture containing an organic amide solvent, a sulfur source, water, and a dihalo aromatic compound; a first-stage polymerization step of performing a polymerization reaction on the charged mixture at a temperature of from 170 to 280&#xb0; C. to produce a prepolymer having a conversion ratio of the dihalo aromatic compound of 50% or greater; and a second-stage polymerization step of continuing the polymerization reaction in a phase-separated state at a temperature of from 245 to 290&#xb0; C. in a reaction system containing the prepolymer, and includes adding a polyfunctional compound to the reaction system in the phase-separated state. A PAS having a melt viscosity (310&#xb0; C., shear rate: 1216 sec) of from 0.1 to 8000 Pa&#xb7;s is produced by the method.

Polyarylene sulfide production method and polyarylene sulfide

A downhole tool member for hydrocarbon resource recovery, comprising a shaped body of a polyglycolic acid resin having a weight average molecular weight of at least 70,000, having an effective thickness which is &#xbd; or more of a critical thickness of surface decomposition, and exhibiting a thickness reduction rate in water which is constant with respect to time. As a result, it has become possible to more accurately design the strength and time up to the collapse of the downhole tool member which forms the whole or a part of a downhole tool for developing or repairing downholes for recovery of hydrocarbon resources, such as oil and gas.

Downhole tool member for hydrocarbon resource recovery

Provided is a method of producing polyarylene sulfide at low cost while productivity enhancement and resource saving are attempted by avoiding the use of a complicated step and special apparatus (facility). The method of producing polyarylene sulfide according to an embodiment of the present invention includes: a preparation step of preparing a mixture containing an organic amide solvent, a sulfur source, a dihalo aromatic compound, and an alkali metal hydroxide in an amount less than an equimolar amount relative to an amount of the sulfur source; a first-stage polymerization step of initiating a polymerization reaction by heating the mixture, and producing a prepolymer having a dihalo aromatic compound conversion ratio of 50% or greater; and a second-stage polymerization step of adding an alkali metal hydroxide such that the alkali metal hydroxide is in an amount of 1.00 to 1.10 mol per 1 mol of the sulfur source, and continuing the polymerization reaction in a homogeneous liquid phase condition.

The present invention is to provide a method of producing polyarylene sulfide that can produce polyarylene sulfide having a low halogen content simply and easily and at low cost. The method of producing polyarylene sulfide according to an embodiment of the present invention includes: a preparation step of preparing a mixture containing an organic amide solvent, a sulfur source, a dihalo aromatic compound, and an alkali metal hydroxide; a first-stage polymerization step of producing a prepolymer until a pH of a reaction system reaches a range of lower than 10 but 7 or higher by initiating a polymerization reaction by heating the mixture; and a second-stage polymerization step of continuing the polymerization reaction.

Provided is a method for manufacturing fine polyarylene sulfide (PAS) powder, in which impurities such as alkali metal salts and/or PAS oligomers are reduced while the wettability of the fine PAS powder in a fine PAS powder-containing solid is retained after solid-liquid separation of a separation liquid obtained by subjecting a dispersion liquid containing granular PAS to separation into granular PAS and a separation liquid; and a fine PAS powder. The method for manufacturing a fine PAS powder of the present invention includes: (a) separating granular PAS and a separation liquid from a dispersion liquid containing granular PAS, by solid-liquid separation using at least one screen that has an opening diameter of 75 to 180 &#x3bc;m; (b) performing solid-liquid separation of the separation liquid to obtain a fine PAS powder-containing solid; (c) heating the fine PAS powder-containing solid to reduce an amount of an organic solvent to obtain a wet cake; and (d) washing the wet cake using an aqueous solvent. The water content of the wet cake after heating is at least 30 wt. %.

Method for manufacturing fine polyarylene sulfide powder, and fine polyarylene sulfide powder

A linear motor includes a field core, a stator that includes a plurality of permanent magnets disposed on the field core, and an armature core that includes an armature winding wire, the armature core being disposed via a magnetic void with the permanent magnets. Assuming that a length of the armature core in a traveling direction of the linear motor is Lc, a pitch of the permanent magnets is &#x3c4;p, and N is a natural number, the length Lc of the armature core is specified by (N&#xd7;&#x3c4;p&#x2212;0.2&#xd7;&#x3c4;p)&#x2264;Lc&#x2264;(N&#xd7;&#x3c4;p+0.2&#xd7;&#x3c4;p).

Linear motor

A poly-L-lactic acid (PLLA) solid-state extrusion molded article having a weight average molecular weight of from 100,000 to 380,000 and a melt viscosity of from 20 to 2,000 Pa&#xb7;s (at a temperature of 240&#xb0; C. and a shear rate of 120 sec) and having an L-form content of from 80 to 100%, the article having a thickness or diameter of from 10 to 500 mm and a tensile strength of from 5 to 100 MPa at a temperature of 66&#xb0; C. (the article may contain a filler and have a tensile strength of from 5 to 200 MPa); a downhole tool member or a ball sealer for well drilling and completion formed by machining the solid-state extrusion molded article; an isolation plug provided with the downhole tool member; and a production method for a PLLA solid-state extrusion molded article comprising steps of supplying a resin material containing a PLLA to an extruder, solid-state extrusion molding the material, pressurizing the solid-state extrusion molded product, drawing the pressurized product while applying a back pressure in the direction of a forming die to suppress the expansion of the solid-state extrusion molded product; and a well drilling and completion method.

Poly-L-lactic acid solid-state extrusion molded article, method for producing the same, and use applications of the same

A method of producing polyarylene sulfide (PAS) by subjecting a sulfur source and a dihalo aromatic compound (DHA) to polymerization reaction in an organic amide solvent under alkaline conditions, the method suppressing side reactions or the like and yielding PAS having a high degree of polymerization at a high yield is provided; and PAS having a high degree of polymerization are provided. A method of producing PAS, including: a preparation step of preparing a preparation mixture containing an organic amide solvent, a sulfur source, an alkali metal hydroxide, water, and DHA, and having a pH of 12.5 or higher; a first-stage polymerization step of heating the preparation mixture to 170&#xb0; C. or higher to initiate a polymerization reaction and continuing the polymerization reaction at 240 to 280&#xb0; C., thereby forming a prepolymer having a DHA conversion rate of 50% or greater (at this time, a temperature increasing rate from 220&#xb0; C. to 240&#xb0; C. is lower than a temperature increasing rate for 240&#xb0; C. or higher); and a second-stage polymerization step of adding, in the reaction system, an alkali metal hydroxide in an amount of 1 to 20 mol % per 1 mol of the sulfur source in the presence of a phase separation agent to continue the polymerization reaction at 245 to 290&#xb0; C. PAS having a melt viscosity (310&#xb0; C.; shear rate: 1216 sec) of 0.1 to 8000 Pa&#xb7;s produced by the method.

An active energy ray curable resin composition comprising: urethane poly(meth)acrylate (A) synthesized from a raw material including a polyisocyanate and a hydroxy group-containing (meth)acrylate; (meth)acrylate (B) having five or more functional groups; a photopolymerization initiator (C1) having an absorption coefficient per unit weight of 50000 ml/g&#xb7;cm or more when measured in methanol at 254 nm; a photopolymerization initiator (C2) other than the (C1) having an absorption coefficient per unit weight of 50000 ml/g&#xb7;cm or more when measured in methanol at 302 nm; a photopolymerization initiator (C3) other than the (C1) and the (C2) having an absorption coefficient per unit weight of 100 ml/g&#xb7;cm or more when measured in methanol at 405 nm; and an ultraviolet absorbing agent (D).

Active energy ray curable resin composition, resin molded article, and method for producing resin molded article

Growing community of inventors

Tokyo, Japan

Hiroyuki Sato