YAMANASHI ELECTRONICS CO., LTD.
Patent Owner
Stats
- 6 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Sep 11, 2012 most recent publication
Details
- 6 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 154 Total Citation Count
- Feb 26, 1988 Earliest Filing
- 15 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
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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
8263297 Electrophotographic photoconductor and electrophotographic apparatusNov 25, 08Sep 11, 12[G03G]
7704655 Electrophotographic photoreceptor and electrophotographic apparatusJul 30, 08Apr 27, 10[G03G]
7195851 Charge-transfer material and process for producing the same, electron-transfer agent, photoreceptor for electrophotography and organic electroluminescence element using said charge-transfer materialNov 30, 05Mar 27, 07[G03G]
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
7629096 Electrophotographic photoreceptor with an undercoat layer containing a polyimide resin and electrophotographic apparatus with the photoreceptorExpiredDec 21, 04Dec 08, 09[G03G]
2007/0154,826 Electrophotographic photoreceptor and electrophotographAbandonedDec 21, 04Jul 05, 07[G03G]
2004/0142,261 Charge-transfer material and process for producing the same, electron-transfer agent, photoreceptor for electrophotography and organic electroluminescence element using said charge-transfer materialAbandonedSep 30, 03Jul 22, 04[C07D, G03G]
5876892 Electrophotographic photoreceptor with polycarbonate copolymer and butadieneExpiredJun 04, 98Mar 02, 99[G03G]
5263517 Toner pack for use with the developing device and method of filling up toner from the toner pack to the developing deviceExpiredApr 15, 92Nov 23, 93[B65D]
5181071 Apparatus for evaluating characteristics of photosensitive drum for electrophotographyExpiredDec 02, 91Jan 19, 93[G03G]
5051778 Electrophotographic copying machine which integrates components having substantially equal service lives into respective detachable units formed of a developing unit, a photoreceptor unit and a toner cartridge unitExpiredDec 15, 89Sep 24, 91[G03G]
4997738 Electrophotographic photoreceptor having silicate with perfluoroalkyl groups in protective layerExpiredNov 27, 89Mar 05, 91[G03G]
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