Inventor · disambiguated record
Tadato Hashiguchi
Also filed as: HASHIGUCHI TADATO
5 granted patents·411 citations·filing 1993–1998
86Inventor score
Top patents by PatentIndex Score
5 records- 0187US5751854AOriginal-discrimination system for discriminating special document, and image forming apparatus, image processing apparatus and duplicator using the original-discrimination systemRICOH KK·Filed 1996·Granted May 12, 1998·181 cites·4 claims
- 0278US5444518AImage forming apparatus which adds identification information to recorded images to prevent forgeryRICOH KK·Filed 1993·Granted Aug 22, 1995·47 cites·9 claims
- 0377US6272248B1Original-discrimination system for discriminating special document, and image forming apparatus, image processing apparatus and duplicator using the original-discrimination systemRICOH KK·Filed 1998·Granted Aug 7, 2001·113 cites·2 claims
- 0475US5642199ACopier having a security functionRICOH KK·Filed 1995·Granted Jun 24, 1997·54 cites·10 claims
- 0555US5602939ASpecific document discriminating apparatus and image reading apparatus using it thereinRICHO COMPANY LTD·Filed 1994·Granted Feb 11, 1997·16 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →