Inventor · disambiguated record
Hiro-O Nakagawa
Also filed as: NAKAGAWA HIRO-O
5 granted patents·74 citations·filing 2000–2002
80Inventor score
Files withDAINIPPON PRINTING CO LTD5
Top patents by PatentIndex Score
5 records- 0189US6599667B2Halftone phase shift photomask and blank for halftone phase shift photomaskDAINIPPON PRINTING CO LTD·Filed 2001·Granted Jul 29, 2003·41 cites·10 claims
- 0275US6869736B2Halftone phase shift photomask and blank for halftone phase shift photomaskDAINIPPON PRINTING CO LTD·Filed 2001·Granted Mar 22, 2005·15 cites·6 claims
- 0367US6458496B2Blank for halftone phase shift photomask and halftone phase shift photomaskDAINIPPON PRINTING CO LTD·Filed 2000·Granted Oct 1, 2002·12 cites·34 claims
- 0459US6740455B2PhotomaskDAINIPPON PRINTING CO LTD·Filed 2001·Granted May 25, 2004·5 cites·3 claims
- 0544US6933082B2Photomask with dust-proofing device and exposure method using the sameDAINIPPON PRINTING CO LTD·Filed 2002·Granted Aug 23, 2005·1 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when Hiro-O Nakagawa files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →