Inventor
KARAOKE TAKAO
JP2 patents
Patents
2 patentsUS5304262AApr 19, 1994
Two-piece oil ring for use in internal combustion engine, steel wire of modified cross-section for use as material of the oil ring and method of producing the steel wire
HITACHI METALS LTD7 citations69
US6901782B2Jun 7, 2005
Method and apparatus for forming a modified a cross-section wire material
HITACHI METALS LTD3 citations57