Inventor
Norihiko Miyata
Inventor
Shiojiri, JP
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C09Gprimary
C09GPolishing compositions44%
C09KMaterials for miscellaneous applications, not provided for elsewhere22%
G11BInformation storage based on relative movement between record carrier and transducer22%
B24BMachines, devices, or processes for grinding or polishing11%
PatentTitleYear
6,569,215'Composition for polishing magnetic disk substrate'20036,478,835'Abrasive composition for polishing magnetic recording disk substrates'20026,478,837'Abrasive composition substrate for magnetic recording disks and process for producing substrates for magnetic recording disk'20026,152,976'Abrasive composition for disc substrate, and process for polishing disc substrate'2000Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2000–2003Patents assigned to SHOWA DENKO KK (4)· patent assignee history
2000–2002Based in Shiojiri, JP· patent location history
2002Patents assigned to SHOWA ALUMINUM CORP (1)· patent assignee history
2002Based in Shorjiri, JP· patent location history
2003Based in Nagano, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SHOWA DENKO KK | 4 | 2000–2003 |
| SHOWA ALUMINUM CORP | 1 | 2002 |
Locations
| Location | Patents | Span |
|---|---|---|
| Shiojiri, JP | 2 | 2000–2002 |
| Nagano, JP | 1 | 2003 |
| Shorjiri, JP | 1 | 2002 |