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Inventor

Hirohiko Maekawa

Inventor
Kiryu, JP

Overview

4→
Patents
1991–2013
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 4 as inventor

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

F04Dprimary
F04DNon-positive-displacement pumps43%
H02KDynamo-electric machines43%
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants14%
PatentTitleYear
8,342,808'Cooling fan'20135,929,544'Drainage structure of fan motor'19995,216,306'Casing structure for motor'19935,071,322'Waterproof structure for fan motor'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1993Patents assigned to MITSUBA ELECTRIC MFG CO (2)· patent assignee history
1991–2013Based in Kiryu, JP· patent location history
1993Based in Yabuzukahon, JP· patent location history
1999–2013Patents assigned to MITSUBA CORP (2)· patent assignee history
1999Based in Gunma, JP· patent location history
2013Patents assigned to KATAYAMA YUICHI (1)· patent assignee history
2013Patents assigned to MAEKAWA HIROHIKO (1)· patent assignee history
2013Patents assigned to OTA HIDETAKE (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUBA CORP21999–2013
MITSUBA ELECTRIC MFG CO21991–1993
KATAYAMA YUICHI12013
MAEKAWA HIROHIKOself12013
OTA HIDETAKE12013
Locations
LocationPatentsSpan
Kiryu, JP21991–2013
Gunma, JP11999
Yabuzukahon, JP11993