Inventor · disambiguated record
Shizuo Tsuruta
Also filed as: TSURUTA SHIZUO
3 granted patents·1 pending application·28 citations·filing 1994–2002
70Inventor score
Technology areasG03G
Files withHITACHI LTD3
Top patents by PatentIndex Score
4 records- 0159US6661994B2Electrophotographic image forming systemHITACHI LTD·Filed 2002·Granted Dec 9, 2003·6 cites·5 claims
- 0253US6125250ADeveloping device, developing method, and an image forming apparatusHITACHI LTD·Filed 1998·Granted Sep 26, 2000·12 cites·8 claims
- 0349US5585892AImage forming apparatus with positioning member of frame engaging shaft of roller of photosensitive beltHITACHI LTD·Filed 1994·Granted Dec 17, 1996·10 cites·7 claims
- 0434US2002025201A1Electrophotographic image forming systemFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →