Inventor · disambiguated record
Seiki Ejima
Also filed as: EJIMA SEIKI
8 granted patents·7 pending applications·91 citations·filing 1998–2003
85Inventor score
Top patents by PatentIndex Score
15 records- 0189US6615614B1Method for preparing optical waveguide substrateSHINETSU CHEMICAL CO·Filed 2000·Granted Sep 9, 2003·52 cites·14 claims
- 0282US6564585B2Method for producing a second-order nonlinear glass materialSHINETSU CHEMICAL CO·Filed 2001·Granted May 20, 2003·18 cites·4 claims
- 0364US6681074B1Method for producing base material for optical fiber having deformed first clad, base material for optical fiber and optical fiberSHINETSU CHEMICAL CO·Filed 2000·Granted Jan 20, 2004·3 cites·3 claims
- 0455US6380109B1Second-order nonlinear glass materialSHINETSU CHEMICAL CO·Filed 2000·Granted Apr 30, 2002·2 cites·6 claims
- 0550US2005100306A1Method for producing base material for optical fiber having deformed first clad, base material for optical fiber and optical fiberSHINETSU CHEMICAL CO·Filed 2003·Application pending·0 cites
- 0648US6701752B2Synthesized silica glass optical member and method for manufacturing the sameSHINETSU CHEMICAL CO·Filed 2001·Granted Mar 9, 2004·0 cites·8 claims
- 0748US6436728B2Method for making an optical waveguide substrateSHINETSU CHEMICAL CO·Filed 2001·Granted Aug 20, 2002·1 cites·5 claims
- 0848US2004148968A1Synthesized silica glass optical member and method for manufacturing the sameSHINETSU CHEMICAL CO·Filed 2003·Application pending·0 cites
- 0947US2004184979A1Synthesized silica glass optical member and method for manufacturing the sameSHINETSU CHEMICAL CO·Filed 2003·Application pending·0 cites
- 1046US6301412B1Apparatus and method for making multi-branching optical couplerSHINETSU CHEMICAL CO·Filed 1998·Granted Oct 9, 2001·15 cites·20 claims
- 1137US6402973B1Preparation of silicon substrateNTT ELECTRONICS CORP·Filed 2000·Granted Jun 11, 2002·0 cites·1 claims
- 1235US2002020194A1Manufacture of optical waveguide substrateSHINETSU CHEMICAL CO·Filed 2001·Application pending·0 cites
- 1334US2001036349A1Method for manufacturing glass base material, glass base material, and optical fiberFiled 2001·Application pending·0 cites
- 1432US2001002219A1Multi-branching optical couplerSHINETSU CHEMICAL CO·Filed 2000·Application pending·0 cites
- 1529US2001022094A1Silicon surface oxidation device and method of fabricating optical waveguide substrate by the deviceFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →