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Inventor

Kohei Yabuno

Inventor
Hitachi, JP

Overview

3→
Patents
1978–1986
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.

H02Mprimary
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 systems50%
G05FSystems for regulating electric or magnetic variables25%
H03KPulse technique25%
PatentTitleYear
4,626,976'Switch mode power supply having magnetically controlled output'19864,499,530'Switching power supply apparatus'19854,084,222'High-voltage power supply device'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1986Patents assigned to HITACHI LTD (3)· patent assignee history
1978–1985Based in Hitachi, JP· patent location history
1986Patents assigned to HITACHI METALS LTD (1)· patent assignee history
1986Based in Mito, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD31978–1986
HITACHI METALS LTD11986
Locations
LocationPatentsSpan
Hitachi, JP21978–1985
Mito, JP11986