Inventor
HIRAOKA TSUNEAKI
JP9 patents
⚠️ This page may combine multiple inventors who share the name “HIRAOKA TSUNEAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NTN TOYO BEARING CO LTD
7 patentsUS10365249B2Jul 30, 2019
Method for manufacturing outer joint member of constant velocity universal joint and ultrasonic flaw detection-inspection method for a welded portion
NTN TOYO BEARING CO LTD3 citations71
US10221895B2Mar 5, 2019
Method for manufacturing outer joint member for constant-velocity universal joint and outer joint member
NTN TOYO BEARING CO LTD2 citations71
US10539193B2Jan 21, 2020
Method for manufacturing outer joint member for constant-velocity universal joint and outer joint member
NTN TOYO BEARING CO LTD2 citations70
US11286535B2Mar 29, 2022
Heat treatment equipment and heat treatment method
NTN TOYO BEARING CO LTD0 citations47
US10508318B2Dec 17, 2019
Method for thermally treating ring-shaped member
NTN TOYO BEARING CO LTD0 citations44
US10352369B2Jul 16, 2019
Constant velocity universal joint outer joint member and manufacturing method for same
NTN TOYO BEARING CO LTD0 citations38
US10844447B2Nov 24, 2020
Heat treatment method of rod-shape workpiece
NTN TOYO BEARING CO LTD0 citations36