Koizumi; Hiromitsu
Patent Applications and Registrations
Patent applications and USPTO patent grants for Koizumi; Hiromitsu.The latest application filed is for "toner cartridge".
- Koizumi; Hiromitsu - Saitama JP
- Koizumi; Hiromitsu - Saitama-shi JP
- Koizumi; Hiromitsu - Iwatsuki JP
- Koizumi, Hiromitsu - Iwatsuki-shi JP
| Patent | Date |
|---|---|
| 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 7,643,777 - Matsumoto , et al. January 5, 2 | 2010-01-05 |
| 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 App 20070253743 - Kayahara; Yasufumi ; et al. | 2007-11-01 |
| Toner cartridge and image forming apparatus App 20070253747 - Koizumi; Hiromitsu ; et al. | 2007-11-01 |
| Toner cartridge App 20070253748 - Matsumoto; Takuji ; et al. | 2007-11-01 |
| Toner cartridge Grant D549,274 - Koizumi , et al. August 21, 2 | 2007-08-21 |
| Toner cartridge Grant D548,276 - Koizumi , et al. August 7, 2 | 2007-08-07 |
| Toner cartridge Grant D548,277 - Koizumi , et al. August 7, 2 | 2007-08-07 |
| Image forming apparatus Grant 7,155,148 - Nishimura , et al. December 26, 2 | 2006-12-26 |
| Image forming apparatus App 20050100354 - Nishimura, Shigeki ; et al. | 2005-05-12 |
| Image formation apparatus and charger used therewith Grant 6,785,494 - Yamanoi , et al. August 31, 2 | 2004-08-31 |
| Image forming apparatus with detachable image forming unit assembly Grant 6,738,590 - Okimura , et al. May 18, 2 | 2004-05-18 |
| Image formation apparatus and charger used therewith App 20030012584 - Yamanoi, Kazuya ; et al. | 2003-01-16 |
| Image forming apparatus App 20020181968 - Okimura, Naomasa ; et al. | 2002-12-05 |
| Charger and image formation apparatus using the charger App 20020154922 - Ohno, Shigeo ; et al. | 2002-10-24 |
| Image forming apparatus Grant D458,299 - Koizumi , et al. June 4, 2 | 2002-06-04 |
| Transfer apparatus providing improved transfer material guidance along a feed path to an electrophotographic image carrier Grant 5,268,724 - Koizumi , et al. December 7, 1 | 1993-12-07 |
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