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Inventor

Katsuhiro Akinaga

Inventor
Ibaraki, JP

Overview

6→
Patents
1993–2013
Patent span
Physics
Primary field (CPC G)

Patents· 6 as inventor

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

G03Gprimary
G03GElectrography86%
B41JTypewriters14%
PatentTitleYear
8,532,545'Image forming apparatus and image forming method'20138,406,660'Image forming apparatus including counter-rotating developing rollers and controlling method'20135,740,504'Electrophotographing method using carona charging device having areas with and without a grid'19985,634,183'Image printer'19975,276,487'Method of preventing colors from being mixed for a two-color image forming apparatus'19945,179,417'Apparatus for printing on opposite surfaces of a strip of printing paper'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–1998Patents assigned to HITACHI KOKI KK (4)· patent assignee history
1993–2013Based in Ibaraki, JP· patent location history
1997Based in Hitachinaka, JP· patent location history
2013Patents assigned to AKINAGA KATSUHIRO (2)· patent assignee history
2013Patents assigned to HOKKYOH TOMONARI (2)· patent assignee history
2013Patents assigned to RICOH CO LTD (2)· patent assignee history
2013Patents assigned to YAMADA KOUTAROU (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI KOKI KK41993–1998
AKINAGA KATSUHIROself22013
HOKKYOH TOMONARI22013
RICOH CO LTD22013
YAMADA KOUTAROU22013
Locations
LocationPatentsSpan
Ibaraki, JP51993–2013
Hitachinaka, JP11997