Nippon Piston Ring Co., Ltd.

Honda Giken Kogyo K.k.

Toshiaki Sato

Teruo Takahashi

Osamu Kawamura

Takao Omiya

A method and apparatus for discharging work product from a device wherein a roller which is biased to push against the top of the work product cooperates with a stopper which engages the surface of the work product for displacing the work product, one-by-one from the device to a discharge chute.

Method and apparatus for discharging works from a centerless grinder

A valve seat for an internal combustion engine is provided with a base member in which cobalt-based hard particles are dispersed in a matrix of an iron-based alloy. The matrix of an iron-based alloy comprises (a) carbon in a range of 0.5-1.5 weight %, (b) chromium and/or vanadium in a range of 0.5-10.0 weight % in total and (c) iron as a remainder based on weight of the base member respectively. An amount of the cobalt-based hard particles is in a range of 26-50 weight % based on weight of the base member.

Valve seat for internal combustion engine

A valve seat for an internal combustion engine provided with a base member, wherein said base member comprises; a matrix of iron-based alloy comprising (a) carbon in a range of 0.5-1.5 weight % based on weight of said base member, (b) at least one element selected from a group consisting of nickel, cobalt and molybdenum in a range of 2.0-20.0 weight % in total based on weight of said base member and (c) iron as a remainder; cobalt-based hard particles dispersed in said matrix in a range of 26-50 weight % based on weight of said base member.

A synchronizer ring having a stabilized friction characteristic relative to a taper cone and having sufficient mechanical strength and anti-abrasion characteristic. The synchronizer ring is made from a ferrous sintered alloy containing 0.2 to 1.0% by weight of carbon, 8.0 to 15.0% by weight of copper, 0.1 to 7.0% by weight of at least one component selected from a group consisting of chromium, manganese, molybdenum, and phosphorus, and balance iron and inevitable impurities. A free copper is precipitated in a matrix of the sintered alloy. Porosity of the sintered alloy is from 3 to 8 vol %.

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Tochigi-ken, Japan

Toshiaki Sato