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Inventor

Yasutaka Izumi

Inventor
Tokyo, JP

Overview

4→
Patents
1997–2007
Patent span
Physics
Primary field (CPC G)

Patents· 4 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus60%
B41JTypewriters20%
H10HInorganic light-emitting semiconductor devices having potential barriers20%
PatentTitleYear
7,271,823'Optical scanner and image forming apparatus'20077,164,516'Optical scanner and image forming apparatus'20077,106,483'Optical scanner and image forming apparatus'20065,606,181'Edge emitting type light emitting diode array heads'1997

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1997–2007Patents assigned to RICOH KK (4)· patent assignee history
1997–2007Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH KK41997–2007
Locations
LocationPatentsSpan
Tokyo, JP41997–2007