Inventor

KOKUBO MASAFUMI

JP3 patents

⚠️ This page may combine multiple inventors who share the name “KOKUBO MASAFUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI METALS LTD

2 patents

US11173544B2Nov 16, 2021

Casting apparatus and method for producing castings using it

HITACHI METALS LTD0 citations57

US9950363B2Apr 24, 2018

Casting apparatus and method for producing castings using it

HITACHI METALS LTD0 citations46

HITACHI LTD

1 patent

US6577784B2Jun 10, 2003

Optical switch

HITACHI LTD0 citations48