Inventor · disambiguated record
Keisuke Sumida
Also filed as: SUMIDA KEISUKE
8 granted patents·109 citations·filing 1990–1995
88Inventor score
Technology areasG03G
Files withMITA INDUSTRIAL CO LTD8
Top patents by PatentIndex Score
8 records- 0188US5550290ABenzidine derivative and electrophotosensitive material using the sameMITA INDUSTRIAL CO LTD·Filed 1994·Granted Aug 27, 1996·35 cites·9 claims
- 0269US5059503AElectrophotosensitive material with combination of charge transfer materialsMITA INDUSTRIAL CO LTD·Filed 1990·Granted Oct 22, 1991·19 cites·24 claims
- 0357US5521044AElectrophotosensitive materialMITA INDUSTRIAL CO LTD·Filed 1993·Granted May 28, 1996·10 cites·5 claims
- 0453US5514508AElectrophotosensitive materialMITA INDUSTRIAL CO LTD·Filed 1995·Granted May 7, 1996·11 cites·13 claims
- 0553US5494765AElectrophotosensitive material using a phenylenediamine derivativeMITA INDUSTRIAL CO LTD·Filed 1994·Granted Feb 27, 1996·9 cites·17 claims
- 0651US5851712AElectrophotosensitive materialMITA INDUSTRIAL CO LTD·Filed 1995·Granted Dec 22, 1998·9 cites·9 claims
- 0751US5153088AElectrophotosensitive material with x-type metal free phthalocyanine and perylene compoundMITA INDUSTRIAL CO LTD·Filed 1990·Granted Oct 6, 1992·9 cites·26 claims
- 0846US5087544APerylene electrophotosensitive material with m-phenylenediamineMITA INDUSTRIAL CO LTD·Filed 1990·Granted Feb 11, 1992·7 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →