Inventor

Hirofumi Shimada

Inventor
Otsu, JP

Overview

12→
Patents
1984–2020
Patent span
Physics
Primary field (CPC G)

Patents· 12 as inventor

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

H04Nprimary
H04NPictorial communication, e.g. television10%
LOC1010%
A61NElectrotherapy7%
B60LPropulsion of electrically-propelled vehicles7%
B60TVehicle brake control systems or parts thereof7%
E02FDredging7%
G01TMeasurement of nuclear or x-radiation7%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters7%
Y02TClimate change mitigation technologies related to transportation7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–2020Based in Yokohama, JP· patent location history
2011–2014Patents assigned to JAPAN ATOMIC ENERGY AGENCY (2)· patent assignee history
2014–2020Patents assigned to SHIMADA HIROFUMI (3)· patent assignee history
2014Patents assigned to ARAKAWA KAZUO (2)· patent assignee history
2014Based in Gunma, JP· patent location history
2016–2017Patents assigned to HITACHI CONSTRUCTION MACH CO (2)· patent assignee history
2016–2017Based in Tsuchiura, JP· patent location history
2017–2019Patents assigned to OPTEX CO LTD (3)· patent assignee history
2017–2019Based in Otsu, JP· patent location history
2020Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
OPTEX CO LTD32017–2019
SHIMADA HIROFUMIself32014–2020
ARAKAWA KAZUO22014
HITACHI CONSTRUCTION MACH CO22016–2017
JAPAN ATOMIC ENERGY AGENCY22011–2014
Locations
LocationPatentsSpan
Otsu, JP32017–2019
Kanagawa, JP22020
Yokohama, JP21984–2020
Tsuchiura, JP22016–2017
Gunma, JP12014