Inventor · disambiguated record
Takeshi Ukai
Also filed as: UKAI TAKESHI
15 granted patents·743 citations·filing 1972–2003
95Inventor score
Top patents by PatentIndex Score
15 records- 0190US5604596ACopying apparatus having determination unit for special original and for controlling copying and marking based on determinationRICOH KK·Filed 1993·Granted Feb 18, 1997·102 cites·10 claims
- 0287US5751854AOriginal-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
- 0387US5659628ASpecial-document discriminating apparatus and managing system for image forming apparatus having a special-document discriminating functionRICOH KK·Filed 1996·Granted Aug 19, 1997·93 cites·6 claims
- 0479US5652803ASpecial-document discriminating apparatus and managing system for image forming apparatus having a special-document discriminating functionRICOH KK·Filed 1996·Granted Jul 29, 1997·56 cites·5 claims
- 0578US5444518AImage forming apparatus which adds identification information to recorded images to prevent forgeryRICOH KK·Filed 1993·Granted Aug 22, 1995·47 cites·9 claims
- 0677US6272248B1Original-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
- 0775US5642199ACopier having a security functionRICOH KK·Filed 1995·Granted Jun 24, 1997·54 cites·10 claims
- 0873US7038228B2Image forming apparatus with specific document determining module and abnormality detection meansRICOH KK·Filed 2003·Granted May 2, 2006·9 cites·4 claims
- 0969US3952242AAutomatic voltage regulator with optical feedbackRICOH KK·Filed 1972·Granted Apr 20, 1976·23 cites·6 claims
- 1063US4509732ADocument handling apparatus for producing folded and bound stacks of documentsRICOH KK·Filed 1980·Granted Apr 9, 1985·15 cites·13 claims
- 1158US6949757B2Specific document determining apparatus including a microwave sensorRICOH KK·Filed 2003·Granted Sep 27, 2005·3 cites·19 claims
- 1256US5696365ABar code recording device for a paper media systemRICOH KK·Filed 1995·Granted Dec 9, 1997·23 cites·2 claims
- 1355US5602939ASpecific document discriminating apparatus and image reading apparatus using it thereinRICHO COMPANY LTD·Filed 1994·Granted Feb 11, 1997·16 cites·8 claims
- 1440US6025603ASpecific document determining apparatus, image reading apparatus, specific document determining method, and a computer-readable recording medium with a program for execution of the method stored therein image reading apparatus having a specific documentRICOH KK·Filed 1997·Granted Feb 15, 2000·8 cites·50 claims
- 1529US6696696B1Image forming apparatus with specific document module having a microwave sensorRICOH KK·Filed 1999·Granted Feb 24, 2004·0 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →