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Inventor

Keisuke Fukumizu

Inventor
Tokyo, JP

Overview

2→
Patents
1999–2007
Patent span
Chemistry
Primary field (CPC C)

Patents· 2 as inventor

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

C21Dprimary
C21DModifying the physical structure of ferrous metals25%
H01JElectric discharge tubes or discharge lamps25%
B21BRolling of metal13%
C22CAlloys13%
H01FMagnets13%
Y10TTechnical subjects covered by former us classification13%
PatentTitleYear
7,202,593'Steel sheet for inner magnetic shield and method of producing the same, inner magnetic shield, and color cathode ray tube'20075,871,851'Magnetic shielding material for television cathode-ray tube and process for producing the same'1999

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1999Patents assigned to NIPPON STEEL CORP (1)· patent assignee history
1999Patents assigned to SONY CORP (1)· patent assignee history
1999–2007Based in Tokyo, JP· patent location history
2007Patents assigned to JFE STEEL CORP (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
JFE STEEL CORP12007
NIPPON STEEL CORP11999
SONY CORP11999
Locations
LocationPatentsSpan
Tokyo, JP21999–2007