Mayuzumi; Hiroshi

Patent Applications and Registrations

Patent applications and USPTO patent grants for Mayuzumi; Hiroshi.The latest application filed is for "charging member, process cartridge and electrophotographic apparatus".

Company Profile

0.9.8

Mayuzumi; Hiroshi - Yokohama JP
Mayuzumi; Hiroshi - Yokohama-shi JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Charging member, process cartridge and electrophotographic apparatus Grant 10,078,286 - Takeno , et al. September 18, 2	2018-09-18
Charging member, process cartridge, and electrophotographic image forming apparatus Grant 10,036,971 - Doi , et al. July 31, 2	2018-07-31
Charging Member, Process Cartridge And Electrophotographic Apparatus App 20160299450 - Takeno; Kineo ; et al.	2016-10-13
Charging Member, Process Cartridge, And Electrophotographic Image Forming Apparatus App 20150331348 - Doi; Noriyuki ; et al.	2015-11-19
Electrophotographic member, process cartridge and electrophotographic apparatus Grant 8,971,766 - Taniguchi , et al. March 3, 2	2015-03-03
Electrophotographic Member, Process Cartridge And Electrophotographic Apparatus App 20130266338 - Taniguchi; Tomohito ; et al.	2013-10-10
Charging member, process cartridge, and electrophotographic apparatus Grant 8,383,234 - Mayuzumi , et al. February 26, 2	2013-02-26
Charging member, process cartridge, and electrophotographic apparatus Grant 8,277,947 - Mayuzumi , et al. October 2, 2	2012-10-02
Charging member, process cartridge, and electrophotographic apparatus Grant 8,227,087 - Mayuzumi , et al. July 24, 2	2012-07-24
Charging Member, Process Cartridge, And Electrophotographic Apparatus App 20120141162 - Mayuzumi; Hiroshi ; et al.	2012-06-07
Charging Member, Process Cartridge, And Electrophotographic Apparatus App 20120076924 - Mayuzumi; Hiroshi ; et al.	2012-03-29
Charging Member, Process Cartridge, And Electrophotographic Apparatus App 20110044725 - Mayuzumi; Hiroshi ; et al.	2011-02-24
Charging member including a conductive support and surface layer having protrusions formed on a surface thereof, a process cartridge including same for use in an image forming apparatus Grant 7,869,741 - Mayuzumi , et al. January 11, 2	2011-01-11
Charging Member, Process Cartridge, And Electrophotographic Apparatus App 20100226684 - Mayuzumi; Hiroshi ; et al.	2010-09-09
Charging Member, Process Cartridge, And Electrophotographic Apparatus App 20100135695 - Mayuzumi; Hiroshi ; et al.	2010-06-03
Cellular conductive roller with conductive powder filling open cells in the surface Grant 6,023,597 - Mayuzumi , et al. February 8, 2	2000-02-08

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