Ejima, Seiki

Patent Applications and Registrations

Patent applications and USPTO patent grants for Ejima, Seiki.The latest application filed is for "method for producing base material for optical fiber having deformed first clad, base material for optical fiber and optical fiber".

Company Profile

0.3.10

Ejima, Seiki - Annaka JP
Ejima, Seiki - Kita-gun JP
Ejima; Seiki - Kagawa JP
Ejima, Seiki - Gunma 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
Method for producing base material for optical fiber having deformed first clad, base material for optical fiber and optical fiber App 20050100306 - Abe, Jun ; et al.	2005-05-12
Synthesized silica glass optical member and method for manufacturing the same App 20040184979 - Abe, Jun ; et al.	2004-09-23
Synthesized silica glass optical member and method for manufacturing the same App 20040148968 - Abe, Jun ; et al.	2004-08-05
Synthesized silica glass optical member and method for manufacturing the same Grant 6,701,752 - Abe , et al. March 9, 2	2004-03-09
Method for producing base material for optical fiber having deformed first clad, base material for optical fiber and optical fiber Grant 6,681,074 - Abe , et al. January 20, 2	2004-01-20
Method for preparing optical waveguide substrate Grant 6,615,614 - Makikawa , et al. September 9, 2	2003-09-09
Manufacture of optical waveguide substrate App 20020020194 - Makikawa, Shinji ; et al.	2002-02-21
Method for manufacturing glass base material, glass base material, and optical fiber App 20010036349 - Abe, Jun ; et al.	2001-11-01
Making method of optical waveguide substrate App 20010034074 - Makikawa, Shinji ; et al.	2001-10-25
Silicon surface oxidation device and method of fabricating optical waveguide substrate by the device App 20010022094 - Makikawa, Shinji ; et al.	2001-09-20
Second-order nonlinear glass material and a method for producing it App 20010019991 - Abe, Jun ; et al.	2001-09-06
Synthesized silica glass optical member and method for manufacturing the same App 20010018835 - Abe, Jun ; et al.	2001-09-06
Multi-branching optical coupler App 20010002219 - Mori, Tsuneo ; et al.	2001-05-31

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