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Inventor

Yasutsugu Kawaguchi

Inventor
Tochigi, JP

Overview

3→
Patents
1989–1994
Patent span
Electricity
Primary field (CPC H)

Patents· 3 as inventor

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

H02Pprimary
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters22%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications22%
F25BRefrigeration machines, plants or systems11%
G05DSystems for controlling or regulating non-electric variables11%
G05FSystems for regulating electric or magnetic variables11%
H02KDynamo-electric machines11%
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 systems11%
PatentTitleYear
5,327,064'Brushless motor incorporating an integrated circuit having a single chip peripheral circuit'19945,245,522'Power supply controlled to supply load current formed as sine wave'19934,810,943'Method and apparatus for controlling air-conditioning apparatus'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1994Patents assigned to HITACHI LTD (3)· patent assignee history
1989–1994Based in Tochigi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD31989–1994
Locations
LocationPatentsSpan
Tochigi, JP31989–1994