Inventor · disambiguated record
Takafumi Okamura
Also filed as: OKAMURA TAKAFUMI
4 granted patents·20 citations·filing 2000–2017
69Inventor score
Files withDAINIPPON PRINTING CO LTD4
Top patents by PatentIndex Score
4 records- 0167US6458496B2Blank for halftone phase shift photomask and halftone phase shift photomaskDAINIPPON PRINTING CO LTD·Filed 2000·Granted Oct 1, 2002·12 cites·34 claims
- 0264US6764792B1Halftone phase shift photomask and blanks for halftone phase shift photomask for producing itDAINIPPON PRINTING CO LTD·Filed 2000·Granted Jul 20, 2004·8 cites·14 claims
- 0351US9769927B2Structural body and method for manufacturing sameDAINIPPON PRINTING CO LTD·Filed 2017·Granted Sep 19, 2017·0 cites·18 claims
- 0450US9924596B2Structural body and method for manufacturing sameDAINIPPON PRINTING CO LTD·Filed 2017·Granted Mar 20, 2018·0 cites·16 claims
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