Kayahara; Yasufumi
Patent Applications and Registrations
Patent applications and USPTO patent grants for Kayahara; Yasufumi.The latest application filed is for "image forming apparatus".
- Kayahara; Yasufumi - Tokyo JP
- Kayahara; Yasufumi - Saitama JP
- KAYAHARA; Yasufumi - Saitama-shi JP
- Kayahara; Yasufumi - Iwatsuki JP
- Kayahara, Yasufumi - Iwatsuki-shi JP
| Patent | Date |
|---|---|
| Image forming apparatus with toner refilling unit Grant 9,658,569 - Kayahara May 23, 2 | 2017-05-23 |
| Image forming apparatus Grant 8,787,779 - Kayahara July 22, 2 | 2014-07-22 |
| Developing device and image forming apparatus Grant 8,472,847 - Kayahara June 25, 2 | 2013-06-25 |
| Image Forming Apparatus App 20120106990 - KAYAHARA; Yasufumi | 2012-05-03 |
| Developing Device And Image Forming Apparatus App 20110176838 - KAYAHARA; Yasufumi | 2011-07-21 |
| Image Forming Apparatus App 20110158669 - KAYAHARA; Yasufumi | 2011-06-30 |
| Toner cartridge Grant 7,912,409 - Kayahara , et al. March 22, 2 | 2011-03-22 |
| Toner cartridge and image forming apparatus Grant 7,647,010 - Koizumi , et al. January 12, 2 | 2010-01-12 |
| Toner cartridge Grant 7,529,511 - Kayahara , et al. May 5, 2 | 2009-05-05 |
| Toner Cartridge App 20090103945 - KAYAHARA; Yasufumi ; et al. | 2009-04-23 |
| Toner cartridge and image forming apparatus App 20070253747 - Koizumi; Hiromitsu ; et al. | 2007-11-01 |
| Toner cartridge App 20070253743 - Kayahara; Yasufumi ; et al. | 2007-11-01 |
| Development roller, development roller base, development roller manufacturing method, and image forming apparatus Grant 7,203,451 - Kayahara , et al. April 10, 2 | 2007-04-10 |
| Development roller, development roller base, development roller manufacturing method, and image forming apparatus App 20050095039 - Kayahara, Yasufumi ; et al. | 2005-05-05 |
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