Inventor
KAMOI SUMIO
JP18 patents
⚠️ This page may combine multiple inventors who share the name “KAMOI SUMIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
15 patentsUS6262787B1Jul 17, 2001
Polymer film liquid crystal display device
RICOH KK78 citations96
US4984873AJan 15, 1991
Liquid crystal display device
RICOH KK55 citations92
US4793691ADec 27, 1988
Liquid crystal color display device
RICOH KK53 citations92
US4470668ASep 11, 1984
Reaction setting, polymer, sealing material for liquid crystal displays
RICOH KK36 citations92
US5566013AOct 15, 1996
Liquid crystal display apparatus which prevents bubbles with a spacer density of 201 to 800 mm2
RICOH KK33 citations90
US5513026AApr 30, 1996
Method of producing a liquid crystal display with a spacer
RICOH KK31 citations90
US7027761B2Apr 11, 2006
Developing device and an image forming apparatus including the same
RICOH KK17 citations83
US6379759B2Apr 30, 2002
Sealing agent for liquid crystal display and liquid crystal display using the sealing agent
RICOH KK18 citations82
US5044733ASep 3, 1991
Super twisted nematic liquid crystal display device having the standard deviation of the spherical grains being not more than 3% and the dispersion quantity of the spherical grains being 100-200 grains/mm2
RICOH KK21 citations81
US6697593B2Feb 24, 2004
Developing device using a developing roller and image forming apparatus including the same
RICOH KK17 citations80
US7366454B2Apr 29, 2008
Long magnet, production method thereof, magnet roller and image forming device
RICOH KK8 citations73
US7352983B2Apr 1, 2008
Development magnet roller, development device, process cartridge and image forming apparatus
RICOH KK8 citations72
US7203450B2Apr 10, 2007
Developing roller, developing apparatus, process cartridge, and image formation apparatus
RICOH KK6 citations62
US7189338B2Mar 13, 2007
Image forming apparatus and developing device therefor
RICOH KK5 citations59
US7572388B2Aug 11, 2009
Magnet compound material to be compression molded, a molded elongate magnetic, a magnet roller, a developing agent-carrying body, a developing apparatus and an image-forming apparatus
RICOH KK0 citations49