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For the Inventor, By the Inventor

Tokyo, Japan

Takuzi Yoneda

USPTO Granted Patents = 18

 

Average Co-Inventor Count = 6.5

ph-index = 7

Forward Citations = 120(Granted Patents)


Location History:

  • Kanagawa, JP (2001)
  • Oota-ku, JP (2007)
  • Ohta-ku, JP (2007 - 2011)
  • Tokyo, JP (2008 - 2015)

Company Filing History:

goldMedal18 out of 28,566 
 
Ricoh Company, Ltd.
 patents

Years Active: 2001-2015

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18 patents (USPTO):Explore Patents
1. 9109633 - Driving force transmission mechanism and image forming apparatus (2015-08-18),
2. 8923726 - Image forming apparatus incorporating developing device with first and second seals (2014-12-30),
3. 8843033 - Developer supplier, image forming apparatus, developer supplying method and image forming method (2014-09-23),
4. 8843019 - Development device and image forming apparatus incorporating same (2014-09-23),
5. 8843015 - Imaging device, image forming apparatus, and process cartridge (2014-09-23),
6. 8428488 - Charging device, process cartridge, image forming apparatus, and toner (2013-04-23),
7. 8121498 - Image forming apparatus and developer supply method therefor (2012-02-21),
8. 8086117 - Image forming apparatus and developer replenishing method (2011-12-27),
9. 8064807 - Developer supply system and image forming apparatus incorporating same (2011-11-22),
10. 8000627 - Charging device, process cartridge, image forming apparatus, and toner (2011-08-16),
11. 7826786 - Image forming apparatus, lubricant applying device, transfer device, process cartridge, and toner (2010-11-02),
12. 7672635 - Method and apparatus for image forming and effectively applying lubricant to an image bearing member (2010-03-02),
13. 7477856 - Method and apparatus for image forming capable of effectively preventing resonance of frequencies (2009-01-13),
14. 7373101 - Method and apparatus for image forming and effectively applying lubricant to an image bearing member (2008-05-13),
15. 7333744 - Image forming apparatus that charges a photosensitive member by superimposing an alternate current bias voltage on a direct current bias voltage as the charge bias voltage (2008-02-19),
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