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Inventor

Hiroo Ogawa

Inventor
Nagoya, JP

Overview

10→
Patents
1990–2020
Patent span
Electricity
Primary field (CPC H)

Patents· 10 as inventor

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

B41Jprimary
B41JTypewriters40%
H01FMagnets20%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems20%
H05KPrinted circuits13%
G05FSystems for regulating electric or magnetic variables7%
PatentTitleYear
10,580,569Electronic component including planar transformer202010,262,789Transformer and switched-mode power supply apparatus201910,249,430Transformer and switched-mode power supply apparatus201910,141,101Transformer and switched-mode power supply apparatus20187,922,291'Ink jet head and head unit'20116,196,653'Ink jet printer'20016,170,942'Ink supply device'20016,161,917'Ink jet recorder'20006,053,608'Ink pellet with step configuration including slidable bearing surfaces'20004,941,761'Printing device capable of low-density printing and high-density printing'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–2011Patents assigned to BROTHER IND LTD (6)· patent assignee history
1990–2011Based in Nagoya, JP· patent location history
2018–2019Based in Sakado, JP· patent location history
2019–2020Patents assigned to TAMURA SEISAKUSHO KK (3)· patent assignee history
2020Based in Saitama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BROTHER IND LTD61990–2011
TAMURA SEISAKUSHO KK32019–2020
Locations
LocationPatentsSpan
Nagoya, JP61990–2011
Sakado, JP32018–2019
Saitama, JP12020