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Inventor

Hiroyuki Okaji

Inventor
Yokohama, JP

Overview

8→
Patents
2000–2012
Patent span
Physics
Primary field (CPC G)

Patents· 8 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G03Gprimary
G03GElectrography100%
PatentTitleYear
8,180,249'Image forming apparatus'20128,086,146'Image forming method and apparatus for effectively supplying developer'20117,991,330'Developing unit including developer conveyance system having supply path, recovery path, and agitation path, process cartridge including developing unit, and image forming apparatus including process cartridge'20117,962,078'Image forming apparatus capable of stably conveying recording medium'20117,925,190'Developer supply device and image forming apparatus comprising same'20117,801,467'Developing-agent container, method of manufacturing developing-agent container, developing-agent supplying device, and image forming apparatus'20107,787,813'Image forming apparatus capable of stably conveying recording medium'20106,128,449'Image forming apparatus and method for controlling charging and developing bias voltage'2000

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2000–2010Patents assigned to RICOH KK (3)· patent assignee history
2000–2011Based in Kanagawa, JP· patent location history
2010–2012Based in Yokohama, JP· patent location history
2011–2012Patents assigned to RICOH CO LTD (5)· patent assignee history
2011–2012Patents assigned to OKAJI HIROYUKI (2)· patent assignee history
2011Patents assigned to TSUDA KIYONORI (1)· patent assignee history
2011Patents assigned to UNO MUGIJIROU (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH CO LTD52011–2012
RICOH KK32000–2010
OKAJI HIROYUKIself22011–2012
TSUDA KIYONORI12011
UNO MUGIJIROU12011
Locations
LocationPatentsSpan
Yokohama, JP52010–2012
Kanagawa, JP32000–2011