Inventor

TAKAMIZAWA HIDEYOSHI

JP3 patents

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

DAINIPPON PRINTING CO LTD

2 patents

US9971238B2May 15, 2018

Mask blank, phase shift mask, and production method thereof

DAINIPPON PRINTING CO LTD1 citations46

US9874808B2Jan 23, 2018

Mask blank, mask blank with negative resist film, phase shift mask, and method for producing pattern formed body using same

DAINIPPON PRINTING CO LTD0 citations46

NAGAI TAKAHARU

1 patent

US8974987B2Mar 10, 2015

Photomask and methods for manufacturing and correcting photomask

NAGAI TAKAHARU7 citations77