Segawa; Toshikazu

Patent Applications and Registrations

Patent applications and USPTO patent grants for Segawa; Toshikazu.The latest application filed is for "reflection type diffuse hologram, hologram for reflection hologram color filters, etc, and reflection type display device using such holograms".

Company Profile

0.6.3

Segawa; Toshikazu - Tokyo JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Reflection Type Diffuse Hologram, Hologram For Reflection Hologram Color Filters, Etc, And Reflection Type Display Device Using Such Holograms App 20070195391 - Nishikawa; Shingo ; et al.	2007-08-23
Reflection type diffuse hologram, hologram for reflection hologram color filters, etc., and reflection type display device using such holograms Grant 7,215,451 - Nishikawa , et al. May 8, 2	2007-05-08
Method of making phase mask for machining optical fiber and optical fiber having bragg diffraction grating produced using the phase mask for machining optical fiber Grant 6,795,614 - Segawa , et al. September 21, 2	2004-09-21
Reflection type diffuse hologram, hologram for reflection hologram color filters, etc., and reflection type display device using such holograms Grant 6,667,819 - Nishikawa , et al. December 23, 2	2003-12-23
Method of making phase mask for machining optical fiber and optical fiber having bragg diffraction grating produced using the phase mask for machining optical fiber App 20030006212 - Segawa, Toshikazu ; et al.	2003-01-09
Reflection type diffuse hologram, hologram for reflection hologram color filters, etc., and reflection type display device using such holograms App 20010053004 - Nishikawa, Shingo ; et al.	2001-12-20
Phase mask for processing optical fibers and method of manufacturing the same Grant 6,214,495 - Segawa , et al. April 10, 2	2001-04-10
Phase mask for manufacturing diffraction grating, and method of manufacture Grant 6,200,711 - Kurihara , et al. March 13, 2	2001-03-13
Molded articles using glass as substrate, such as holographic optical element, optical reflector and encoder, and method of producing these articles Grant 6,033,810 - Taniguchi , et al. March 7, 2	2000-03-07

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