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Inventor

Tsutomu Kitagawa

Inventor
Kanagawa, JP

Overview

3→
Patents
1985–2009
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.

B23Kprimary
B23KSoldering or unsoldering20%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for20%
F02BInternal-combustion piston engines20%
F02PIgnition, other than compression ignition, for internal-combustion engines20%
G07CTime or attendance registers20%
PatentTitleYear
7,489,235'Motor vehicle operation information providing system'20094,745,257'Laser welding method'19884,506,145'Device for controlling engine preheating'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–2009Patents assigned to ISUZU MOTORS LTD (2)· patent assignee history
1985–2009Based in Kanagawa, JP· patent location history
1988Patents assigned to MITSUBISHI ELECTRIC CORP (1)· patent assignee history
1988Based in Hyogo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ISUZU MOTORS LTD21985–2009
MITSUBISHI ELECTRIC CORP11988
Locations
LocationPatentsSpan
Kanagawa, JP21985–2009
Hyogo, JP11988