Inventor · disambiguated record
Kazuo Murai
Also filed as: MURAI KAZUO
17 granted patents·727 citations·filing 1981–1998
96Inventor score
Files withRICOH KK17
Top patents by PatentIndex Score
17 records- 0193US5475476AImage density control method for an image recorderRICOH KK·Filed 1993·Granted Dec 12, 1995·44 cites·12 claims
- 0291US4519695AImage density control method for electrophotographyRICOH KK·Filed 1983·Granted May 28, 1985·37 cites·4 claims
- 0389US4572654AImage density control method for electrophotographyRICOH KK·Filed 1982·Granted Feb 25, 1986·33 cites·4 claims
- 0487US5751854AOriginal-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
- 0583US5032904AColor image processing apparatusRICOH KK·Filed 1990·Granted Jul 16, 1991·64 cites·4 claims
- 0682US5682572AImage density control method for an image recorderRICOH KK·Filed 1995·Granted Oct 28, 1997·27 cites·16 claims
- 0780US4667250AHalftone digital image processing deviceRICOH KK·Filed 1986·Granted May 19, 1987·36 cites·5 claims
- 0879US4962421AColor image generating apparatusRICOH KK·Filed 1988·Granted Oct 9, 1990·35 cites·8 claims
- 0979US4639117ARecording image density control method for electrophotographyRICOH KK·Filed 1982·Granted Jan 27, 1987·21 cites·5 claims
- 1078US5444518AImage forming apparatus which adds identification information to recorded images to prevent forgeryRICOH KK·Filed 1993·Granted Aug 22, 1995·47 cites·9 claims
- 1177US6272248B1Original-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
- 1272US4979129ADigital color converting apparatus for color image processorRICOH KK·Filed 1988·Granted Dec 18, 1990·26 cites·24 claims
- 1358US6005673AFacsimile machine and facsimile communication systemRICOH KK·Filed 1996·Granted Dec 21, 1999·22 cites·43 claims
- 1457US4353299AAutomatic control system for offset printing machineRICOH KK·Filed 1981·Granted Oct 12, 1982·11 cites·13 claims
- 1555US5237370AImage density control method for image recorderRICOH KK·Filed 1991·Granted Aug 17, 1993·10 cites·7 claims
- 1651US4933874APrinterRICOH KK·Filed 1989·Granted Jun 12, 1990·15 cites·12 claims
- 1744US4539279AImage density control methodRICOH KK·Filed 1983·Granted Sep 3, 1985·5 cites·14 claims
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