Inventor

Akira Tsubota

Inventor

Tokyo, JP

Overview

2→

Patents

1994–2019

Patent span

General tagging of new technological developments

Primary field (CPC Y)

Patents· 2 as inventor

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

E04Dprimary

E04DRoof coverings13%

G01RMeasuring electric variables13%

G05BControl or regulating systems in general13%

H02JElectric power networks13%

Y02ATechnologies for adaptation to climate change13%

Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications13%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution13%

Y04SSystems integrating technologies related to power network operation, communication or information technologies for improving the electrical power generation, transmission, distribution, management or usage, i.e. smart grids13%

PatentTitleYear

10,461,538System stabilization control device and power system control system2019 5,287,650'Structured medium for the cultivation of greenery and a waterproofing system to facilitate the installation of said medium on buildings'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994Patents assigned to ASANUMA CORP (1)· patent assignee history

1994Based in Shiga, JP· patent location history

2019Patents assigned to HITACHI LTD (1)· patent assignee history

2019Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
ASANUMA CORP	1	1994
HITACHI LTD	1	2019

Locations

Location	Patents	Span
Tokyo, JP	1	2019
Shiga, JP	1	1994