Inventor
ISHIKAWA TETSUZO
JP6 patents
⚠️ This page may combine multiple inventors who share the name “ISHIKAWA TETSUZO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO HEAVY INDUSTRIES
5 patentsUS6378206B1Apr 30, 2002
Method of fabricating pin retaining ring for internal gear, internal meshing planetary gear structure, and hydraulic motor pump
SUMITOMO HEAVY INDUSTRIES15 citations82
US6174223B1Jan 16, 2001
Method and apparatus for polishing external-tooth gears
SUMITOMO HEAVY INDUSTRIES14 citations72
US9382949B2Jul 5, 2016
Shaft coupling structure
SUMITOMO HEAVY INDUSTRIES6 citations67
US9200677B2Dec 1, 2015
Shaft coupling structure
SUMITOMO HEAVY INDUSTRIES3 citations56
US9331545B2May 3, 2016
Rotation apparatus including motor and speed reducer
SUMITOMO HEAVY INDUSTRIES0 citations34