Inventor
Eiichirou Uda
Inventor
Tokyo, JP
Overview
Patents· 3 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Jprimary
H01JElectric discharge tubes or discharge lamps100%
PatentTitleYear
6,447,355'Impregnated-type cathode substrate with large particle diameter low porosity region and small particle diameter high porosity region'20026,304,024'Impregnated-type cathode substrate with large particle diameter low porosity region and small particle diameter high porosity region'20016,034,469'Impregnated type cathode assembly, cathode substrate for use in the assembly, electron gun using the assembly, and electron tube using the cathode assembly'2000Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2000–2002Patents assigned to TOSHIBA KK (3)· patent assignee history
2000Based in Toyko, JP· patent location history
2001–2002Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TOSHIBA KK | 3 | 2000–2002 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 2 | 2001–2002 |
| Toyko, JP | 1 | 2000 |