Inventor
TERATOKO KEIICHIRO
JP5 patents
Patents
5 patentsUS6790294B1Sep 14, 2004
Spring with excellent fatigue endurance property and surface treatment method for producing the spring
SUNCALL CORP19 citations79
US6223574B1May 1, 2001
Thin-walled ring-shaped member and method of manufacturing same
SUNCALL CORP11 citations64
US9400026B2Jul 26, 2016
Spiral spring
SUNCALL CORP2 citations60
US7556011B2Jul 7, 2009
Valve structure for internal combustion
SUNCALL CORP4 citations60
US9782819B2Oct 10, 2017
Spiral spring manufacturing method
SUNCALL CORP0 citations39