Inventor · disambiguated record
Yasuhiko Saka
Also filed as: SAKA YASUHIKO
6 granted patents·237 citations·filing 1988–2005
86Inventor score
Files withRICOH KK6
Top patents by PatentIndex Score
6 records- 0192US6570103B1Method and apparatus for coordinate inputting capable of effectively using a laser rayRICOH KK·Filed 2000·Granted May 27, 2003·95 cites·34 claims
- 0289US7539599B2Abnormality diagnosing method, condition appraisal apparatus, image forming apparatus, management apparatus and management systemRICOH KK·Filed 2005·Granted May 26, 2009·22 cites·34 claims
- 0385US7113174B1Coordinate inputting/detecting apparatus and method designed to avoid a trailing phenomenonRICOH KK·Filed 2000·Granted Sep 26, 2006·49 cites·17 claims
- 0482US6518959B1Device for detecting and inputting a specified positionRICOH KK·Filed 2000·Granted Feb 11, 2003·37 cites·9 claims
- 0579US4851924AColor recorder overhead projector with color recorderRICOH KK·Filed 1988·Granted Jul 25, 1989·24 cites·9 claims
- 0647US4839731AColor overhead projectorRICOH KK·Filed 1988·Granted Jun 13, 1989·10 cites·6 claims
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