Inventor · disambiguated record
Toshikazu Segawa
Also filed as: SEGAWA TOSHIKAZU
8 granted patents·3 pending applications·175 citations·filing 1993–2023
88Inventor score
Top patents by PatentIndex Score
11 records- 0192US6667819B2Reflection type diffuse hologram, hologram for reflection hologram color filters, etc., and reflection type display device using such hologramsDAINIPPON PRINTING CO LTD·Filed 2001·Granted Dec 23, 2003·47 cites·8 claims
- 0278US6214495B1Phase mask for processing optical fibers and method of manufacturing the sameDAINIPPON PRINTING CO LTD·Filed 1998·Granted Apr 10, 2001·41 cites·25 claims
- 0376US6200711B1Phase mask for manufacturing diffraction grating, and method of manufactureDAINIPPON PRINTING CO LTD·Filed 1999·Granted Mar 13, 2001·38 cites·11 claims
- 0473US5543228AMolded relief hologramDAINIPPON PRINTING CO LTD·Filed 1993·Granted Aug 6, 1996·32 cites·6 claims
- 0566US2025101264A1Foaming adhesive sheet and article manufacturing methodDAINIPPON PRINTING CO LTD·Filed 2023·Application pending·0 cites
- 0661US2025129269A1Foaming adhesive sheet and method for producing productDAINIPPON PRINTING CO LTD·Filed 2023·Application pending·0 cites
- 0752US2007195391A1Reflection type diffuse hologram, hologram for reflection hologram color filters, etc, and reflection type display device using such hologramsDAINIPPON PRINTING CO LTD·Filed 2007·Application pending·0 cites
- 0845US6795614B2Method of making phase mask for machining optical fiber and optical fiber having bragg diffraction grating produced using the phase mask for machining optical fiberDAINIPPON PRINTING CO LTD·Filed 2001·Granted Sep 21, 2004·1 cites·12 claims
- 0943US6033810AMolded articles using glass as substrate, such as holographic optical element, optical reflector and encoder, and method of producing these articlesDAINIPPON PRINTING CO LTD·Filed 1997·Granted Mar 7, 2000·8 cites·18 claims
- 1031US7215451B1Reflection type diffuse hologram, hologram for reflection hologram color filters, etc., and reflection type display device using such hologramsDAINIPPON PRINTING CO LTD·Filed 1998·Granted May 8, 2007·4 cites·5 claims
- 1129US6466714B1Method of producing phase mask for fabricating optical fiber and optical fiber with bragg's diffraction grating produced by using the phase maskDAI NIPPON PRINTING CO LTD AND·Filed 1998·Granted Oct 15, 2002·4 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →