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Inventor

Saburo Yasukawa

Inventor
Katsuta, JP

Overview

5→
Patents
1983–1998
Patent span
Electricity
Primary field (CPC H)

Patents· 5 as inventor

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

H01Mprimary
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy25%
H04NPictorial communication, e.g. television25%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution25%
G09BEducational or demonstration appliances13%
H02JElectric power networks13%
PatentTitleYear
5,760,492'Control system for power transmission and distribution system'19985,177,625'Image processing system suitable for use for a facsimile'19934,926,253'Multi-color document reading apparatus for facsimile and multi-color facsimile'19904,629,664'Liquid fuel cell'19864,407,904'Fuel cell'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–1998Patents assigned to HITACHI LTD (5)· patent assignee history
1983Patents assigned to HITACHI CHEMICAL CO LTD (1)· patent assignee history
1983Based in Hitachi, JP· patent location history
1986–1993Based in Katsuta, JP· patent location history
1998Based in Hitachinaka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD51983–1998
HITACHI CHEMICAL CO LTD11983
Locations
LocationPatentsSpan
Katsuta, JP31986–1993
Hitachinaka, JP11998
Hitachi, JP11983