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Inventor

Masami Oguriyama

Inventor
Ichikawa, JP

Overview

3→
Patents
1981–1995
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.

H01Fprimary
H01FMagnets60%
H01JElectric discharge tubes or discharge lamps20%
H05HPlasma technique20%
PatentTitleYear
5,387,893'Permanent magnet magnetic circuit and magnetron plasma processing apparatus'19955,289,152'Permanent magnet magnetic circuit'19944,308,155'Rubber or plastic magnet and magnetic powder for making the same'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981Patents assigned to TDK ELECTRONICS CO LTD (1)· patent assignee history
1981–1995Based in Ichikawa, JP· patent location history
1994–1995Patents assigned to TOKYO ELECTRON LTD (2)· patent assignee history
1994Patents assigned to TDK CORP (1)· patent assignee history
1994Patents assigned to TOSHIBA KK (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOKYO ELECTRON LTD21994–1995
TDK CORP11994
TDK ELECTRONICS CO LTD11981
TOSHIBA KK11994
Locations
LocationPatentsSpan
Ichikawa, JP31981–1995