Inventor
Yoshio Koga
Inventor
Ibaraki, JP
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B32Bprimary
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form20%
C03BManufacture, shaping, or supplementary processes20%
C07CAcyclic or carbocyclic compounds20%
G11BInformation storage based on relative movement between record carrier and transducer20%
H01JElectric discharge tubes or discharge lamps20%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1979Patents assigned to TOKYO SHIBAURA ELECTRIC CO (1)· patent assignee history
1979Based in Yokohama, JP· patent location history
1984Patents assigned to MITSUBISHI ELECTRIC CORP (1)· patent assignee history
1984Based in Nagaokakyo, JP· patent location history
1988Patents assigned to ASAHI GLASS CO LTD (1)· patent assignee history
1988Based in Toyoda, JP· patent location history
2006Patents assigned to MITSUBISHI CHEM CORP (1)· patent assignee history
2006Based in Ibaraki, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ASAHI GLASS CO LTD | 1 | 1988 |
| MITSUBISHI CHEM CORP | 1 | 2006 |
| MITSUBISHI ELECTRIC CORP | 1 | 1984 |
| TOKYO SHIBAURA ELECTRIC CO | 1 | 1979 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ibaraki, JP | 1 | 2006 |
| Toyoda, JP | 1 | 1988 |
| Nagaokakyo, JP | 1 | 1984 |
| Yokohama, JP | 1 | 1979 |