Inventor · disambiguated record
Koichi Kawasumi
Also filed as: KAWASUMI KOICHI
11 granted patents·118 citations·filing 1982–1997
89Inventor score
Top patents by PatentIndex Score
11 records- 0176US5978065ALiquid crystal device and manufacturing method and apparatus thereforSONY CORP·Filed 1997·Granted Nov 2, 1999·57 cites·24 claims
- 0267US5229235AElectrophotographic process using melted developerSONY CORP·Filed 1992·Granted Jul 20, 1993·17 cites·6 claims
- 0356US5374495ADeveloper for electrostatic electrophotographySONY CORP·Filed 1992·Granted Dec 20, 1994·10 cites·11 claims
- 0448US5592208APrinting method and a printing apparatus for carrying out the sameSONY CORP·Filed 1994·Granted Jan 7, 1997·8 cites·7 claims
- 0544US5075735AElectrophotographic apparatus using developer that is changed from a solid to a liquidSONY CORP·Filed 1990·Granted Dec 24, 1991·6 cites·9 claims
- 0641US5424163APicture recording method using a dispersant having coloring agent particles contained thereinSONY CORP·Filed 1994·Granted Jun 13, 1995·6 cites·7 claims
- 0740US4485168APhotochromic photosensitive compositionSONY CORP·Filed 1982·Granted Nov 27, 1984·7 cites·4 claims
- 0834US5153099AWavelength multiplexed optical recording materialAGENCY IND SCIENCE TECHN·Filed 1990·Granted Oct 6, 1992·2 cites·2 claims
- 0933US5073798AElectronic photography apparatusSONY CORP·Filed 1990·Granted Dec 17, 1991·2 cites·7 claims
- 1031US5116714AImage forming material with developer and photosensitive base on which an electrostatic latent image is formedSONY CORP·Filed 1990·Granted May 26, 1992·1 cites·19 claims
- 1128US5204215AWavelength multiplexed optical recording materialAGENCY IND SCIENCE TECHN·Filed 1991·Granted Apr 20, 1993·2 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →