Nissan Motor Company Limited

Hitachi Cable, Inc.

Tomihito Hashimoto

Tomohito Ota

Yasuaki Yamamoto

Hiroo Kusano

Hideki Nishimura

Nobuo Kino

Ryou Murakami

Hideki Mishimura

Provided is a field pole magnet to be installed in a rotor or a stator of a permanent magnet rotary machine, the field pole magnet including: multiple magnet pieces (to) formed by breaking and dividing a single permanent magnet; and at least one magnet-piece holding member () configured to hold these magnet pieces (to).

Method of manufacturing a field pole magnet

A sliding member formed of a resinous material is in sliding contact with a steel member in an automotive internal combustion engine. The resinous material includes a thermoplastic resin composition which includes a fluororesin in an amount ranging from 5 to 40 parts by weight, and a thermoplastic resin other than the fluororesin, in an amount ranging from 95 to 60 parts by weight. The fluororesin contains crosslink formed between at least a part of carbon atoms forming part of a molecule chain of the fluororesin and at least a part of carbon atoms forming part another molecular chain of the fluororesin, and active end group formed at least a part of the molecule chain of the fluororesin.

Thermoplastic resin composition, resinous material including same composition, and sliding members using same material

Thermoplastic resin composition including a fluororesin, resinous material including same composition, and sliding members using same material

A seal ring () of the present invention seals operating oil hermetically and is attached to an annular seal ring groove () provided on an outer circumference of a shaft member (). The seal ring () includes fluororesin, modified fluororesin formed by being irradiated with an ionizing radiation in a range from 1 kGy to 10 MGy inclusive in a state of being heated up to a melting point thereof or higher under an inert gas atmosphere with an oxygen partial pressure of 1.33 kPa or less, and synthetic resin having a surface energy ranging from +0 N/cm to 20&#x2dc;10&#x2212;5 N/cm inclusive of that of the operating oil.

Seal ring and seal device

A seal ring seals operating oil hermetically and is attached to an annular seal ring groove provided on an outer circumference of a shaft member. The seal ring comprises fluororesin, metal powder having a hardness equal to or more than that of any of a side surface of the seal ring groove serving as a sliding partner and an inner circumferential surface of a housing engaged relatively rotatable with the outer circumference of the shaft member, and modified fluororesin formed by irradiating an ionizing radiation in a range from 1 kGy to 10 MGy inclusive in a state of being heated up to a melting point thereof or higher under an inert gas atmosphere with an oxygen partial pressure of 1.33 kPa or less.

Growing community of inventors

Tokyo, Japan

Tomihito Hashimoto