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Inventor

Tatsuo Yoshii

Inventor
Wakayama, JP

Overview

2→
Patents
2004
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 metals33%
C22CAlloys33%
H01JElectric discharge tubes or discharge lamps33%
PatentTitleYear
6,806,631'Color CRT mask frame, a steel sheet used therefor and a manufacturing method for the steel sheet, and a color CRT equipped with the frame'20046,699,334'Steel sheet used for color CRT mask frame and a manufacturing method for the steel sheet'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (2)· patent assignee history
2004Patents assigned to SUMITOMO METAL IND (2)· patent assignee history
2004Based in Wakayama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD22004
SUMITOMO METAL IND22004
Locations
LocationPatentsSpan
Wakayama, JP22004