Inventor
Karunasena A. Alahapperuma
Inventor
Woodbury, MN, US
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Tprimary
Y10TTechnical subjects covered by former us classification28%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1022%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests17%
C08LCompositions of macromolecular compounds11%
C09JAdhesives11%
B24DTools for grinding, buffing or sharpening6%
G11BInformation storage based on relative movement between record carrier and transducer6%
PatentTitleYear
8,038,750'Structured abrasive with overlayer, and method of making and using the same'20116,759,121'Clear adhesive sheet'20046,478,918'Semiconductor wafer processing tapes'20026,472,065'Clear adhesive sheet'20026,235,387'Semiconductor wafer processing tapes'20016,027,778'One piece capstan for a tape cartridge'2000Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2000Patents assigned to IMATION CORP (1)· patent assignee history
2000Based in Maplewood, MN, US· patent location history
2001–2011Patents assigned to 3M INNOVATIVE PROPERTIES CO (5)· patent assignee history
2001–2011Based in Woodbury, MN, US· patent location history
2002–2004Based in Austin, TX, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| 3M INNOVATIVE PROPERTIES CO | 5 | 2001–2011 |
| IMATION CORP | 1 | 2000 |
Locations
| Location | Patents | Span |
|---|---|---|
| Woodbury, Minnesota, US | 3 | 2001–2011 |
| Austin, Texas, US | 2 | 2002–2004 |
| Maplewood, Minnesota, US | 1 | 2000 |