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Inventor

Akira Hosoya

Inventor
Hitachi, JP

Overview

6→
Patents
1981–2009
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
G03GElectrography33%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests22%
B41MPrinting, duplicating, marking, or copying processes11%
C07DHeterocyclic compounds11%
G06KGraphical data reading11%
H01JElectric discharge tubes or discharge lamps11%
PatentTitleYear
7,528,994'Apparatus and method for preparing printing data, computer product, and prescription preparation apparatus'20095,215,842'Photosensitive element for electrophotography'19934,999,654'Image forming system'19914,430,404'Electrophotographic photosensitive material having thin amorphous silicon protective layer'19844,405,703'Electrophotographic plate having an age-hardened aluminum substrate and process for producing the same'19834,253,038'Light source excited by high frequency for Zeeman effect atomic absorption analysis'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1993Patents assigned to HITACHI LTD (4)· patent assignee history
1981–1993Based in Hitachi, JP· patent location history
1983–1984Patents assigned to HITACHI KOKI KK (2)· patent assignee history
1991–2009Patents assigned to RICOH KK (2)· patent assignee history
1991Based in Yokosuka, JP· patent location history
1993Patents assigned to HITACHI CHEMICAL CO LTD (1)· patent assignee history
2009Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD41981–1993
HITACHI KOKI KK21983–1984
RICOH KK21991–2009
HITACHI CHEMICAL CO LTD11993
Locations
LocationPatentsSpan
Hitachi, JP41981–1993
Kanagawa, JP12009
Yokosuka, JP11991