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Inventor

Koichi Umeno

Inventor
Tokyo, JP

Overview

3→
Patents
1991–2001
Patent span
Performing operations
Primary field (CPC B)

Patents· 3 as inventor

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

B41Jprimary
B41JTypewriters25%
E21DShafts25%
H01QAntennas, i.e. radio aerials25%
Y10TTechnical subjects covered by former us classification25%
PatentTitleYear
6,179,289'Paper-feed control unit and method of control for image-forming apparatus'20015,517,204'Antenna directing apparatus'19965,017,045'Method and apparatus for controlling attitude of shield excavator'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991Patents assigned to ISHIKAWAJIMA HARIMA HEAVY IND (1)· patent assignee history
1991Patents assigned to SATO KOGYO (1)· patent assignee history
1991Patents assigned to TOKYO KEIKI KK (1)· patent assignee history
1991–1996Based in Tokyo, JP· patent location history
1996Patents assigned to TOKIMEC INC (1)· patent assignee history
2001Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (1)· patent assignee history
2001Based in Fukuoka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ISHIKAWAJIMA HARIMA HEAVY IND11991
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12001
SATO KOGYO11991
TOKIMEC INC11996
TOKYO KEIKI KK11991
Locations
LocationPatentsSpan
Tokyo, JP21991–1996
Fukuoka, JP12001