Ikoma; Keiko

Patent Applications and Registrations

Patent applications and USPTO patent grants for Ikoma; Keiko.The latest application filed is for "mold having a diamond layer, for molding optical elements".

Company Profile

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Ikoma; Keiko - Yokohama JP
Ikoma; Keiko - Shioiri 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
Mold having a diamond layer, for molding optical elements Grant 5,380,349 - Taniguchi , et al. January 10, 1	1995-01-10
Optical card and method for reading information recorded in it Grant 5,248,584 - Miura , et al. September 28, 1	1993-09-28
Electric field light-emitting device Grant 5,210,430 - Taniguchi , et al. May 11, 1	1993-05-11
Method of making an optical element mold with a hard carbon film Grant 5,202,156 - Yamamoto , et al. April 13, 1	1993-04-13
Mold with hydrogenated amorphous carbon film for molding an optical element Grant 5,026,415 - Yamamoto , et al. June 25, 1	1991-06-25
Novel diamond-like carbon film and process for the production thereof Grant 4,935,303 - Ikoma , et al. June 19, 1	1990-06-19
Novel single-bond carbon film and process for the production thereof Grant 4,932,331 - Kurihara , et al. June 12, 1	1990-06-12
Photosensitive member having a light receiving layer comprising a carbonic film for use in electrophotography Grant 4,898,798 - Sugata , et al. February 6, 1	1990-02-06
Cardlike optical recording medium Grant 4,897,829 - Ikoma , et al. January 30, 1	1990-01-30

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