Inventor
KASAHARA HISASHI
JP5 patents
⚠️ This page may combine multiple inventors who share the name “KASAHARA HISASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOYA CORP
4 patentsUS8048591B2Nov 1, 2011
Mask blank glass substrate, mask blank glass substrate manufacturing method, mask blank manufacturing method, and mask manufacturing method
HOYA CORP4 citations60
US8021804B2Sep 20, 2011
Photomask manufacturing method
HOYA CORP4 citations60
US7955763B2Jun 7, 2011
Mask blank glass substrate manufacturing method, mask blank manufacturing method, mask manufacturing method, mask blank glass substrate, mask blank, and mask
HOYA CORP0 citations50
US7851108B2Dec 14, 2010
Mask blank glass substrate manufacturing method, mask blank manufacturing method, mask manufacturing method, mask blank glass substrate, mask blank, and mask
HOYA CORP0 citations50