Inventor
Yasuo Tahara
Inventor
Yamaguchi, JP
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C22Cprimary
C22CAlloys36%
H01JElectric discharge tubes or discharge lamps36%
C21DModifying the physical structure of ferrous metals29%
PatentTitleYear
6,777,863'Material for aperture grill for color picture tube, process for making the same, aperture grill, and picture tube'20046,641,682'Method for manufacturing an aperture grill material for color picture tube'20036,617,776'Color picture tube shadow mask material'20036,583,545'Aperture grill material for color picture tube, production method thereof, aperture grill and picture tube'20036,306,229'Method for production of invar alloy steel sheet material for shadow mask'2001Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2001–2003Patents assigned to TOYO KOHAN CO LTD (3)· patent assignee history
2001–2004Based in Yamaguchi, JP· patent location history
2003–2004Patents assigned to TOYO KOHAN LTD (2)· patent assignee history
2003Based in Ymaguchi-ken, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TOYO KOHAN CO LTD | 3 | 2001–2003 |
| TOYO KOHAN LTD | 2 | 2003–2004 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yamaguchi, JP | 4 | 2001–2004 |
| Ymaguchi-ken, JP | 1 | 2003 |