Sumitomo Rubber Industries Limited

Kawasaki Jukogyo Kabushiki Kaisha

Nippon Tungsten Co., Ltd.

Kabushiki Kaisha Kawasaki Precision Machinery

Fujitsu Ten Limited

Hiroshi Ito

Tatsuya Miyazaki

Yutaka Suzuki

Makoto Ninomiya

Kaoru Nomichi

Takahiro Kawachi

Subaru Toya

Masako Nakatani

Koji Fujisawa

Shigeya Sakaguchi

Keiichi Mashio

Ryutaro Okada

Tomoyuki Suzuki

Yoshihiko Takemura

Ayuko Yamada

Keita Tsunemori

Natsuki Maekawa

Daiko Fujimori

Hiroshi Aoyagi

Ryosuke Harada

Yasutaka Ozeki

Akira Yamashita

Takeshi Kawana

Kei Takakura

Takayuki Hattori

Takao Wada

Takayuki Nagase

Takuya Horiguchi

Kei Kohara

Tatsuhiro Tanaka

Ai Matsuura

Masaharu Shiroyama

Shuichiro Ono

Kenji Oka

Yasuo Wada

Naoki Sugiyama

Fumiya Kato

Junya Sueno

Jun Ito

Keiichi Nakadera

Tetsuya Maekawa

Sakae Okubo

Jun Okamoto

Masataka Hiro

Yukio Otsuki

Hiroyuki Matsumoto

Shusuke Takezaki

Daiki Mukouguchi

Yuki Mitsumata

A pneumatic tireincludes a carcassextending between bead cores of bead portions via a tread portionand sidewall portions, and a belt layerarranged on an outer side in a tire radial direction of the carcassand inside the tread portion. The pneumatic tirehas a noise damperarranged on an inner cavity surface of the tread portion. Glass transition temperature of the noise damperis in a range of from −55 degrees Celsius to −45 degrees Celsius.

Pneumatic tire

Provided are a tread rubber composition and a pneumatic tire, which exhibit excellent wet grip performance when thermally damaged. A tread rubber composition having acetone extractable contents before and after heat aging (denoted by 'AEf' and “AEo”, respectively) that satisfy the following relationships 1) and 2):

Tread rubber composition and pneumatic tire

The present invention provides a composite that has good initial adhesion and good adhesion after high temperature and high humidity aging. Provided is a composite including: a topping rubber composition having a fatty acid content of 0.8% by mass or less; and an adherend plated with a copper-containing layer.

Composite and pneumatic tire

A pneumatic tirecomprises a carcassextending between bead cores of bead portions via a tread portionand sidewall portions, and a belt layerarranged on an outer side in a tire radial direction of the carcassand inside of the tread portion. The pneumatic tirefurther comprises a damping rubber bodyarranged between the carcassand the belt layer, and a noise damperarranged on an inner cavity surface of the tread portion. A width Win a tire axial direction of the damping rubber bodyis in a range of from 60% to 130% of a width Win the tire axial direction of the belt layer, and a water absorption rate of the noise damperis in a range of from 10% to 25%.

The present invention provides an innerliner rubber composition having an excellent balance of sheet processability and air retention properties, and a pneumatic tire including the rubber composition. The present invention relates to an innerliner rubber composition, containing a rubber component; a mixture of a fatty acid metal salt and a fatty acid amide; an oil; and a C5 petroleum resin, the rubber component including, based on 100% by mass thereof, at least 70% by mass of a butyl-based rubber, the mixture being present in an amount of 0.8 to 3.2 parts by mass per 100 parts by mass of the rubber component, the mixture, the oil, and the C5 petroleum resin being present in a combined amount of 6.0 to 16.0 parts by mass per 100 parts by mass of the rubber component.

Rubber composition for inner liner and pneumatic tire

An ash discharge system has a conveyor device which transports clinker ash out of a region that is below a furnace bottom of a boiler furnace; and a separation device provided at a passage of the clinker ash from the furnace bottom to the conveyor device, the separation device including a separator which permits the clinker ash with a predetermined size or less to pass through the separator, and inhibits a large-mass clinker from passing through the separator, the large-mass clinker being the clinker ash with a size larger than the predetermined size.

Ash discharge system

A grizzly apparatus includes a plurality of grizzly bars arranged at predetermined intervals in a second direction perpendicular to a first direction which is an extension direction of center axes of the grizzly bars. Each of the plurality of grizzly bars is rotatable in a direction opposite to a direction of rotation of its adjacent grizzly bar so that a slit through which a screening target object passes and a gap through which the screening target object does not pass alternately emerge, between adjacent grizzly bars. The guide includes an outer member forming its outer shape, and has at least one guide surface inclined with respect to the second direction in such a way that the guide surface descends as the guide surface advances in the second direction toward the slit to guide the screening target object having fallen onto the guide to the slit.

Grizzly apparatus and bottom ash discharge system

A tireincludes beads, a carcass, and an insert. The carcassincludes a carcass ply. An inner partof each beadincludes an inner coreand an inner apexthat extends almost outward of the inner corein the radial direction. An outer partof each beadincludes an outer coreand an outer apexthat extends almost outward of the outer corein the radial direction. A ratio of a complex elastic modulus Ea of the inner apexto a complex elastic modulus Eb of the outer apexis less than or equal to 0.3. A ratio of the complex elastic modulus Ea to a complex elastic modulus Ec of the insertis greater than or equal to 1.

The present invention has its object to provide a rubber composition for a tread which can prevent reversion and can also achieve environmental performance (excellent rolling resistance, response to depletion of oil resources, attention to COemission), wet grip performance, dry grip performance, handling stability, and durability (abrasion resistance, crack resistance) in a well-balanced manner. The present invention also aims to provide a pneumatic tire using the rubber composition for the tread thereof. The rubber composition for a tread includes a rubber component containing 35% by mass or more of an epoxidized natural rubber; and a white filler, wherein a total sulfur content is less than 1.75% by mass, and a crosslink density is 7.0&#xd7;10mol/cmor more.

Rubber composition for tread and pneumatic tire

A valve device includes a temperature sensor disposed to project from a housing to a tank inner space to detect the temperature in the tank inner space, and can detect the temperature without being influenced by the heat capacity of the housing. A coil generates a magnetic force to drive a valve with three terminals arranged at different positions in an axial direction, and a drive voltage is selectively applied between two of the terminals. A current value of the driving current which energizes the coil can be changed by selecting the terminals between which the drive voltage is applied. Without controlling the drive voltage, it is possible to suppress wasting power such that the driving current of the large current value is generated in the start-up time, and the current value of the driving current is decreased in the holding time.

Valve device

Disclosed is a method of bias adjustment for a millimeter wave radar apparatus that can efficiently and highly accurately adjust the bias of an MMIC used in a radio frequency circuit in the millimeter wave radar apparatus. The method comprises: providing a DA converter in a bias circuit in the millimeter wave radar apparatus comprising an antenna, a radio frequency unit, and a processing unit for performing transmission and reception processing of the radio frequency unit; connecting a signal generator in place of the antenna; and connecting a test processing unit and a control apparatus to the radio frequency unit, wherein the control apparatus applies an initial bias value in the form of a digital value to the MMIC, calculates the target value for the digital bias value based on the result of the measurement of the received signal, and takes the target value as the digital bias value for the production processing unit when the radio frequency characteristic of the received signal obtained by applying the target value to the MMIC lies within specified limits.

Bias adjustment of radio frequency unit in radar apparatus

A screw loosening prevention structure and a gas-pressure device are provided. The structure includes a first member that is formed with a container space filled with gas, and includes a first threaded portion, a second member that includes a second threaded portion, wherein the second member is threadedly coupled with the first member by threadedly engaging the second threaded portion with the first threaded portion, and receives a pressure from the gas in the container space of the first member, and a spring member provided between the first and second members in a deformed state in which the displacement of the spring member is greater than a relative displacement of the first and second members due to a loosening factor including the gas pressure that is received by this second member.

Screw loosening prevention structure and gas pressure device including same

A tire and an assembly of a rim and a tire are disclosed. The rim has a pair of rim bases, a hump formed axially inside each rim base, and an annular groove formed axially inside each hump. The tire comprises a pair of beads having a bead base seated on the rim base, a pair of bead cores disposed one in each bead, at least one of the beads having a toe and a hump groove disposed between the toe and the bead base, wherein the tip of the toe is located radially outside a bead base line, and under such condition that the tire is inflated to a normal internal pressure, the hump groove and the tip of the toe are spaced apart from the hump and the annular groove, and the distance L in the radial direction between the radially outermost point RT of the hump and the radially outermost point PT of the hump groove is not less than 0.5 mm and not more than 2.0 mm.

Tire and rim assembly comprising a non-contacting bead toe

Tungsten carbide and nickel-phosphorus alloy coexist in individual particles. The composite powder produced by a mechanical mix of these two substances consists of 30.about.95 percent by weight of tungsten carbide and valanced nickel-phosphorus alloy. This powder is sprayed to the ferrous base material, resulting in a uniform dispersion of both tungsten carbide and nickel-phosphorus, causing tight adhesion to the surface because the tungsten carbide and nickel-phosphorus alloy coexist in individual particles in the composite. A hard metal coating is produced having high hardness and excellent wear resistance, after the surface of the hard metal coating is heated and the high temperature of the nickel-phosphorus alloy causes a liquid phase under the condition of a nonoxidizing atmosphere. This hard metal coating is used for various kinds of the wear-resistant materials.

Method for hardfacing a ferrous base material

Growing community of inventors

Kobe, Japan

Hiroshi Ito