Inventor
Takao Takeda
Inventor
Chigasaki, JP
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Jprimary
H01JElectric discharge tubes or discharge lamps83%
C03CChemical composition of glasses, glazes or vitreous enamels17%
PatentTitleYear
4,840,593'Low pressure mercury vapor discharge lamp and preparation thereof'19894,746,346'Method for producing air-tight, heat-resistant plate'19884,725,298'Method for making low pressure mercury vapor discharge lamp'19884,703,227'Low pressure mercury vapor discharge lamp and preparation thereof'19874,475,058'Discharge lamp having convoluted discharge path'1984Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984–1989Patents assigned to MITSUBISHI ELECTRIC CORP (5)· patent assignee history
1984–1989Based in Chigasaki, JP· patent location history
1988Based in Kamakura, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MITSUBISHI ELECTRIC CORP | 5 | 1984–1989 |
Locations
| Location | Patents | Span |
|---|---|---|
| Chigasaki, JP | 4 | 1984–1989 |
| Kamakura, JP | 1 | 1988 |