Ricoh Company, Inc.
Patent Owner
Stats
- 12 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Oct 25, 2011 most recent publication
Details
- 12 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 351 Total Citation Count
- May 23, 1980 Earliest Filing
- 7 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
Rank in Class
Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
8006083 Image forming apparatus, authentication method, and recording mediumJul 18, 07Aug 23, 11[H04L, G06F]
7088484 Optical scanning method and system capable of performing high speed scanning and high resolution, and image forming apparatus having the optical scanning systemMar 25, 03Aug 08, 06[G02B]
6944106 Information recording apparatus for controlling recording power of a recording mediumSep 10, 02Sep 13, 05[G11B]
6175439 Rotary body for a polygonal mirror type scanner and method of machining the sameJun 11, 99Jan 16, 01[G02B]
5408344 Reflection type liquid crystal display with selective reflecting meansJan 11, 94Apr 18, 95[G02F]
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
7251375 Tile boundary artifact removal for arbitrary wavelet filtersExpiredSep 14, 04Jul 31, 07[G06K]
2003/0178,514 Pulverization/classification apparatus for manufacturing powder, and method for manufacturing powder using the pulverization/classification apparatusAbandonedMar 20, 03Sep 25, 03[B02C]
5717497 Image-data transmitter having function of automatic segmented image codingExpiredMar 31, 95Feb 10, 98[H04N]
4400455 Layered organic electrophotographic photoconductor element comprising bisazo generating and hydrazone transport layersExpiredNov 30, 81Aug 23, 83[G03G]
4296418 Ink jet printing apparatus with reverse solvent flushing meansExpiredMay 23, 80Oct 20, 81[G01D]
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