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Inventor

Masao Hosokawa

Inventor
Tainai, JP

Overview

9→
Patents
1977–2013
Patent span
Electricity
Primary field (CPC H)

Patents· 9 as inventor

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

H01Fprimary
H01FMagnets55%
H01HElectric switches27%
G01RMeasuring electric variables9%
H01BCables9%
PatentTitleYear
8,432,244'Power distribution transformer and tank therefor'20138,198,973'Transformer'20128,143,985'Power distribution transformer and tank therefor'20127,843,298'Power distribution transformer and tank therefor'20107,471,183'Transformer'20087,292,127'Transformer'20074,562,322'SF.sub.6 Gas arc extinguishing electric apparatus and process for producing the same'19854,549,132'Method of testing and verifying a performance for insulation to ground of a disconnecting switch when breaking a charging current'19854,009,458'Puffer type gas circuit breaker'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1985Patents assigned to HITACHI LTD (3)· patent assignee history
1977–1985Based in Hitachi, JP· patent location history
2007–2013Patents assigned to HITACHI IND EQUIPMENT SYS (6)· patent assignee history
2007–2008Based in Nakajo, JP· patent location history
2010–2013Patents assigned to NIPPON STEEL & SUMIKIN SST (3)· patent assignee history
2010–2013Based in Tainai, JP· patent location history
2012–2013Patents assigned to FUKUI KAZUYUKI (3)· patent assignee history
2012–2013Patents assigned to HOSOKAWA MASAO (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI IND EQUIPMENT SYS62007–2013
FUKUI KAZUYUKI32012–2013
HITACHI LTD31977–1985
HOSOKAWA MASAOself32012–2013
NIPPON STEEL & SUMIKIN SST32010–2013
Locations
LocationPatentsSpan
Tainai, JP42010–2013
Hitachi, JP31977–1985
Nakajo, JP22007–2008