Hitachi, Ltd.

Bridgestone Corporation

Other

Ajinomoto Co., Ltd.

Daiichi Sankyo Company, Limited

Hitachi Plant Technologies, Ltd.

Hitachi Industries Co., Ltd.

Yasuo Fukushima

Haruo Miura

Naohiko Takahashi

Minoru Hiroshima

Osami Matsushita

William L Hergenrother

Russell W Koch

Haruo Koharagi

Hideo Nishida

Miyoshi Takahashi

Kazuki Takahashi

Tsukasa Taniguchi

Mitsuho Yoneyama

Satoshi Kikuchi

Atsushi Nakayama

Kouki Yamamoto

Shingo Ohno

Yasunori Tarutani

Shigeru Arai

Youichirou Fukai

Tsunehiro Endo

Hiromi Kobayashi

Keiichi Yokoyama

Shunji Araki

Satoshi Horie

Daisuke Nohara

Yoshinori Tajima

Shinichi Wakui

Noriaki Yukimura

Masaharu Senoh

Takeo Takagi

Shinji Marumoto

Yoshiaki Abe

Yosuke Nishio

Tadashi Kaneki

Yoko Mihara

Tsunehiro Endou

Masayuki Ebisawa

Yusuke Asoh

Kunio Nakata

Mikio Kato

Saaya Takaoka

Naofumi Ezawa

Sunji Araki

Toyoki Nishimata

Susumu Shibusawa

Minoru Yoshihara

Teturo Ohashi

Yasuyuki Hayashi

Naohumi Sakanashi

Minako Harada

Naofumi Sakanashi

Provided is a pneumatic actuator having improved durability. A pneumatic actuator () comprises an actuator body () including: a cylindrical tube () configured to expand and contract by air pressure; and a cylindrical sleeve () formed by weaving cords () oriented in predetermined directions, wherein in a no-load and no-pressure state, an average angle (&#x398;) of the cords () with respect to an axial direction (D) of the actuator is 20 degrees or more and less than 45 degrees, and in a state in which an average angle (&#x398;) of the cords () with respect to the axial direction (D) of the actuator is 45 degrees with an air pressure of 5 MPa, a ratio (S2/S1) of a total area (S2) of gaps () of the cords () to an area (S1) of an outer surface of the actuator body () is 35% or less.

Pneumatic actuator

Provided is a hydraulic actuator with improved durability, the hydraulic actuator (), having an actuator main body () constituted of a cylindrical tube () capable of expanding/contracting by hydraulic pressure and a cylindrical sleeve () formed by cords () woven to be disposed in predetermined directions, wherein: the average angle (&#x398;) formed by the cords () with respect to the axis direction (D) of the actuator with no load and no pressure applied thereon is in a range of &#x2265;20&#xb0; and &#x3c;45&#xb0;; and in a state where the average angle (&#x398;) formed by the cords () with respect to the axis direction (D) is 45&#xb0; under hydraulic pressure of 5 MPa, a ratio (S/S) of the total area (S) of clearances () between the cords () with respect to an area (S) of an outer peripheral surface of the actuator main body () is 35% or less.

Hydraulic actuator

Provided is a process for producing a silane coupling agent, which can shorten the time required for the production process. A process for producing a silane coupling agent, characterized by comprising a step of reacting a silane compound (A) with a compound (B) which has a hydroxyl group and further contains an atom having an unshared electron pair other than an oxygen atom derived from the hydroxyl group, in the presence of a metal-containing catalyst (m) to obtain a silane compound (C) which has an alkoxyl group containing the atom having the unshared electron pair other than the oxygen atom derived from the hydroxyl group.

Process for producing silane coupling agent

Provided is a therapeutic agent for hyperparathyroidism, renal osteodystrophy, hypercalcemia and the like, which has a CaSR activating (agonist) action. A compound represented by the following general formula (1): [wherein, Ar which is a partial structure in the general formula (1) represents a phenyl group or a naphthyl group; Rand Rare the same or different from each other, and represent a hydrogen atom, a halogeno group, or the like; Rand Rare the same or different from each other, and represent a hydrogen atom, a halogeno group, or the like; A represents a single bond, an oxygen atom, or the like; B represents a single bond, a C1-C4 alkanediyl group, or the like; Z represents a carboxyl group or a tetrazolyl group; and m represents an integer of 1 to 3] or a pharmacologically acceptable salt thereof.

Cycloalkylamne derivatives

The present invention provides means useful for establishing an excellent isoprene monomer production system. Specifically, the present invention provides a polynucleotide of the following (a), (b), or (c):

Isoprene synthase and gene encoding the same, and method for producing isoprene monomer

Polymer-filler coupling compounds with the formula B-A-S&#x2014;N are claimed. In these compounds, B is an azaheterocyclic oxygen or sulfur containing moiety, or an allyltin moiety; Sis a polysulfide, where x is between 2 and about 10; A is a linking atom or group that forms a bridge between B and S; and N is a blocking group. Scan be a disulfide. N can be a conventional blocking group or other group such as -A-B. Methods for using the polymer-filler coupling compounds to modify polymers containing unsaturated carbon-carbon bonds and promote filler dispersion are also claimed. Additionally, vulcanizable rubber compositions containing the polymer-filler coupling compounds and methods for making vulcanized rubber compositions using the polymer-filler coupling compounds are also claimed.

Polymer-filler coupling additives

This invention relates to a novel compound capable of largely reducing hysteresis loss of a rubber composition but also highly improving wear resistance, and more particularly to an organosilicon compound characterized by having one or more silicon-oxygen bond (Si&#x2014;O) and 1-10 sulfur atoms (S) in its molecule, including one or more chain alkoxy groups and having one or more nitrogen atoms (N) at a position distant by 3-8 atoms from silicon atom (Si).

Organosilicon compound as well as rubber composition, tire, primer composition, paint composition and adhesive using the same

An organosilicon compound having a structure represented by following general formula: R: methyl group or ethyl group, R: a branched or linear, saturated or unsaturated aliphatic hydrocarbon group having 3 to 8 carbon atoms, n: 0.5&#x2dc;2.5 (an average composition), R: a divalent hydrocarbon group of &#x2014;CH&#x2014;, &#x2014;CHCH&#x2014;, &#x2014;CHCHCH&#x2014;, &#x2014;CHCHCHCH&#x2014;, &#x2014;CHCHCHCHCH&#x2014;, &#x2014;CH(CH)&#x2014;, &#x2014;CHCH(CH)&#x2014;, &#x2014;C(CH)&#x2014;, &#x2014;CH(CH)&#x2014;, &#x2014;CHCHCH(CH)&#x2014; or &#x2014;CHCH(CH)CH&#x2014;, X: S, S(C&#x2550;O)&#x2014;R, SH or NH, and R: a branched or linear, saturated or unsaturated aliphatic hydrocarbon group having 1 to 30 carbon atoms. When X&#x2550;S, p=2 and m=1&#x2dc;10. When X&#x2550;S(C&#x2550;O)&#x2014;R, p=1 and m=1. When X&#x2550;SH, p=1 and m=1. When X&#x2550;NH, p=1&#x2dc;3 and m=1. The organosilicon compound simultaneously suppresses discharge of volatile alcohols generated during the reaction with an inorganic filler and exhibits great reactivity with the inorganic filler.

Organosilicon compounds and rubber compositions made by using the same

A reciprocating compressor includes: a low-pressure stage compression part for compressing low-pressure working gas supplied from a supply source; two high-pressure stage compression parts for compressing the working gas compressed by the low-pressure stage compression part at two stages; and a crank mechanism for driving the low-pressure stage compression part and the high-pressure stage compression parts. The two high-pressure stage compression parts each have a plunger and a cylinder and are arranged on both sides of the crank mechanism in such a way as to extend coaxially opposite to each other. The low-pressure stage compression part has a piston and a cylinder and is located in the middle of the two high-pressure stage compression parts. The crank mechanism, the low-pressure stage compression part, and the two high-pressure stage compression parts are substantially located in the same plane.

Reciprocating compressor

Dispersion of filler(s) in polymeric compositions are improved by the use of a polymer-filler coupling compound, Q&#x2014;A&#x2014;B, wherein Q comprises a dipolar nitrogen-containing moiety that can form a 1,3 dipolar addition to an unsaturated carbon-carbon bond; B is an oxazoline, thiazoline, alkoxysilane or allyltin moiety, and A is a linking atom or group that forms a bridge between Q and B.

A reciprocating compressor, being small-sized and compact, for compressing hydrogen gas to be used in a fuel-cell car, has a crankshaft, to which an end of a connecting rod is connected. The other end of the connecting rod is connected to a crosshead. To the crosshead are connected a pair of shafts, each extending in directions opposing to each other. To each of the shafts is connected a plunger. The each plunger is received within a cylinder at the tip portion thereof. A pair of plungers moves reciprocally on an almost same axis, and the crosshead is formed in one body.

A rubber composition for a tire tread which comprises (A) a rubber component selected from the group consisting of natural rubber and synthetic diene-based rubbers, (B) 5 to 50 parts by weight per 100 parts by weight of the rubber component of (b1) aluminum hydroxide particles which are treated with a surface treating agent on the surface and have an average diameter of secondary particles D of 10 &mgr;m or smaller or (b2) aluminum hydroxide particles which have an average diameter of secondary particles D of 0.8 &mgr;m or smaller and a ratio (D /D ) of the average diameter of secondary particles D to an average diameter of primary particles D of 1.7 or smaller and (C) 5 to 80 parts by weight per 100 parts by weight of the rubber component of at least one filler selected from carbon black and silica. The rubber composition is used for a tire tread and provides a tire which exhibits improved abrasion resistance while the excellent performance on wet roads and the low fuel consumption exhibited by a tire using a conventional rubber composition containing aluminum hydroxide are maintained.

Rubber composition

This invention relates to a pneumatic tire comprising a tread at least a surface portion of which is made of a foamed rubber composition, the foamed rubber composition including closed cells formed by compounding a foaming agent and a foaming assistant which contains sodium benzenesulfinate or a combination of sodium benzenesulfinate and urea.

Pneumatic tire having tread made of foamed rubber composition

A very high speed permanent magnet type electric rotating machine, in which loss generated on a rotor is small to achieve high efficiency on an air generating source even when driven by an inverter operating at a fundamental frequency of at least several hundreds of Hz and in which a reactor is inserted between the inverter and a permanent magnet type synchronous motor, and content percentages of components of harmonic current supplied to the permanent magnet type synchronous motor are adjusted such that when a content percentage of a fundamental wave is 100%, a content percentage B of a seventh order component is at most 10% and a total content percentage is made equal to or less than a certain value so as to satisfy the relationship (A<C<B) where A is a content percentage of a fifth order component, B is a content percentage of a seventh order component thereof, and C is a content percentage of a ninth order component thereof, thereby enabling realizing a very high speed permanent magnet type electric rotating machine system, in which harmonic loss of neodymium magnets as well as harmonic loss of a shaft is greatly reduced and loss of the rotor can be reduced to several hundreds of W.

Very high permanent magnet type electric rotating machine system

Growing community of inventors

Kodaira, Japan

Yasuo Fukushima