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Inventor

Masakatsu Haga

Inventor
Tokyo, JP

Overview

5→
Patents
1983–1990
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.

C22Cprimary
C22CAlloys25%
H01FMagnets25%
B22DCasting of metals8%
B22FWorking metallic powder8%
H01CResistors8%
H01JElectric discharge tubes or discharge lamps8%
H02HEmergency protective circuit arrangements8%
Y10TTechnical subjects covered by former us classification8%
PatentTitleYear
4,937,696'Protection circuit for a semiconductor device'19904,615,846'Method of manufacturing a low-melting point alloy for sealing in a fluorescent lamp'19864,563,225'Amorphous alloy for magnetic head and magnetic head with an amorphous alloy'19864,473,417'Amorphous alloy for magnetic core material'19844,385,932'Amorphous magnetic alloy'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–1986Patents assigned to TOKYO SHIBAURA ELECTRIC CO (3)· patent assignee history
1983–1984Based in Yokohama, JP· patent location history
1986–1990Patents assigned to TOSHIBA KK (2)· patent assignee history
1986–1990Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOKYO SHIBAURA ELECTRIC CO31983–1986
TOSHIBA KK21986–1990
Locations
LocationPatentsSpan
Tokyo, JP31986–1990
Yokohama, JP21983–1984