Otsuka Chemical Co., Ltd.

Kubota Corporation

Bridgestone Corporation

Abe Co., Ltd.

Masaki Abe

Mifuyu Ueno

Takashi Sato

Noriaki Shiina

Kazuhiro Kodama

Shinya Nakashima

Aya Saiki

Takahiro Yonekura

Masataka Takagi

Akihiko Mori

Hidehiro Minashima

Yuzaburo Yano

Noriaki Yukimura

Hiroaki Yuasa

Satoshi Hamatani

Shinya Shinozaki

Takahiro Yoshizawa

Hiroyuki Ishitobi

Eiji Miyazaki

Ryuichi Nadaoka

Yuta Ozeki

Koshiro Hirakawa

Kentaro Yoshizawa

Takahiko Matsui

Provided is a rubber composition comprising: a rubber component containing diene-based rubber; a filler, and a compound represented by formula (I) below: (wherein: A is an aryl group and has at least two polar groups, which may be the same or different from each other; Rand Rare each independently at least one substituent selected from a group consisting of a hydrogen atom, an acyl group, an amide group, an alkyl group, a cycloalkyl group, and an aryl group; and further, the substituent may include one or more of O, S, and N atoms), so as to provide a rubber composition excellent in low heat generating property and wear resistance.

Rubber composition, tire, additive and hydrazide compound

An additive for rubber that enables a rubber composition to have excellent low heat generating property and processability, a rubber composition containing the additive for rubber, and a tire using the same are provided. A rubber composition comprises a hydrazone compound represented by the following Formula (I): where Rand Reach independently represent a hydrogen atom, an alkyl group with a carbon number of 1 to 16, or an alkenyl group with a carbon number of 2 to 6, and A represents a group represented by the following Formula (A-1) or Formula (A-2): 

Additive for rubber, rubber composition, and tire using the same

A front loader includes a working tool and an attachment body to which the working tool is attached, including a lock pin configured to attach and fix the working tool, a lock lever configured to move the lock pin between a releasing position and an attaching position, and a latching portion having a retaining mechanism configured to retain the lock lever at the releasing position and another mechanism configured to move the lock lever to the attaching position.

Front loader and working machine

A standis maintained under a stored posture when the standis pivoted toward the stored posture side in association with a dumping actin of a bucketand a lock mechanismis switched to a locking state. The stand is switched to an in-use posture when the lock mechanismis switched to a releasing state while the standis maintained under the stored posture by the lock mechanism

Work vehicle and front loader

A standis maintained under a stored posture when the standis pivoted toward the stored posture side in association with a dumping action of a bucketand a lock mechanismis switched to a locking state. The stand is switched to an in-use posture when the lock mechanismis switched to a releasing state while the standis maintained under the stored posture by the lock mechanism

A work vehicle including an attachment mechanism for attaching a backhoe to a vehicle body. The attachment mechanism includes a pin provided in the vehicle body, an engaging body provided in the backhoe and engageable with the pin, and a locking body for fixing the engaging body to the pin under mutually engaged state. As the engaging body comes into engagement with the pin, the engaging body and the pin are fixed under the mutually engaged state.

Work vehicle and backhoe

Provided is a rubber composition that contains at least one rubber component selected from natural rubber and diene-based synthetic rubbers and, blended therewith, at least one bisanilino compound represented by formula (I). In formula (I), Rand Reach represent, independently of one another, a hydrogen atom or an alkyl group having a carbon number of 1-6, m and n each represent an integer of 0 or 1, Arepresents an alkylene group having a carbon number of 1-7, Arepresents an alkylene group having a carbon number of 1-8, Xrepresents an oxygen atom, a sulfur atom, or an &#x2014;NR&#x2014; group, and Xrepresents an oxygen atom, a sulfur atom, or an &#x2014;NR&#x2014; group, where Rand Reach represent a hydrogen atom or an alkyl group having a carbon number of 1-4, or collectively form an alkylene group having a carbon number of 1-4. 

Rubber composition, tire, bisanilino compound, and anti-aging agent

Provided is a rubber composition that has better weather resistance than conventional rubber compositions and can inhibit surface discoloration of a rubber article. The rubber composition contains at least one rubber component selected from natural rubber and diene-based synthetic rubbers and, blended therewith, at least one amine compound represented by formula (I) shown below. In formula (I), Rand Reach represent, independently of one another, an alkyl group having a carbon number of 1-10, an aralkyl group, or a phenyl group, and A represents an alkylene group having a carbon number of 6-30 that may include an interposed phenylene group. 

Rubber composition, tire, amine compound, and anti-aging agent

The invention provides a rubber composition prepared by mixing, per 100 parts by mass of a rubber component comprising at least 50% by mass of a diene-based rubber, from 20 to 150 parts by mass of a filler, and from 0.05 to 30 parts by mass of a compound A which has a specific guanidine structure and has a functional group reactive with the diene-based rubber. The rubber composition improves both a high elastic modulus and a low tan &#x3b4;. The invention also provides a pneumatic tire using the rubber composition.

Rubber composition, and pneumatic tire using same

Provided is a rubber composition that has better weather resistance than conventional rubber compositions and can inhibit rubber article surface discoloration. The rubber composition contains at least one rubber component selected from natural rubber and diene-based synthetic rubbers and, blended therewith, at least one bisphenyldiamine compound represented by formula (I). In formula (I), R, R, R, and Reach represent, independently of one another, a hydrogen atom, an alkyl group having a carbon number of 1-10, or a phenyl group, but Rand Rdo not both simultaneously represent a hydrogen atom and Rand Rdo not both simultaneously represent a hydrogen atom, Rand Reach represent, independently of one another, an alkyl group having a carbon number of 1-8 or an aralkyl group, A represents an alkylene group having a carbon number of 1-12, and l, m, and n each represent an integer of 0 or 1. 

Rubber composition, tire, bisphenyldiamine compound, and anti-aging agent

Bucket work machine for a loader

The invention provides a rubber composition prepared by mixing, per 100 parts by mass of the rubber component comprising at least 50% by mass of a diene-based rubber, from 20 to 150 parts by mass of a filler, and from 0.05 to 30 parts by mass of a compound A which has a specific amidine structure and has a functional group reactive with the diene-based rubber. The rubber composition improves both a high elastic modulus and a low tan &#x3b4;. The invention also provides a pneumatic tire using the rubber composition.

In the inside of a main body case 4, a motor 10 and a pump 11 are contained. To the pump 11, a suction pipe 12 and an outlet pipe 14 are connected. Jet nozzles 17 are coupled to a portion of the outlet pipe 14. The tip portion of the suction pipe 12 is submerged in the hot water 13 of a bathtub 3 so that the hot water 13 is sucked up by the suction power of the pump 11. The hot water thus sucked up is sent out from an outlet of the pump 12 into the outlet pipe 14 so that it shoots out as jet currents from the jet nozzles 17 to the surface of the hot water 13. At this time, countless air bubbles are generated in the hot water 13 and when they are bursted, ultrasonic wave is generated to bring about various healthfull effects. The above stated components are all installed in a bathroom 2.

Water current and air bubble generating apparatus for bath

A pump 120 contained in a first case 9 sucks hot water 13 in a bathtub 1 through an inlet 12 and pushes the hot water 13 upward through an outlet pipe 14 above the water surface 16. The outlet pipe 14 is coupled to jet nozzles 15, so that the hot water is shot out from the jet nozzles 15 toward the water surface 16. At this time, countless air bubbles are generated in the hot water. The first case 9 and the second case 20 together with the pump 10, a motor 11, the outlet pipe 14, the jet nozzles 15 etc. contained in these cases are installed integrally as a unitary body which is transportable.

Growing community of inventors

Osaka, Japan

Masaki Abe