Inventor
Shinji Eda
Inventor
Nirasaki, JP
Overview
Patents· 20 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer38%
C03CChemical composition of glasses, glazes or vitreous enamels32%
C03BManufacture, shaping, or supplementary processes15%
B24BMachines, devices, or processes for grinding or polishing9%
C09GPolishing compositions4%
Y10TTechnical subjects covered by former us classification2%
PatentTitleYear
10,783,921Glass spacer and hard disk drive apparatus20209,085,486'Glass substrate for a magnetic disk and magnetic disk'20159,085,479'Glass substrate for magnetic disk and manufacturing method thereof'20159,003,834'Glass substrate for magnetic disk and manufacturing method thereof'20158,973,404'Manufacturing method of glass substrate for magnetic disk, manufacturing method of glass blank, glass substrate for magnetic disk, and glass blank'20158,869,559'Method of manufacturing a glass substrate for magnetic disk'20148,806,895'Manufacturing method for a glass substrate for magnetic disk'20148,806,893'Manufacturing method of a glass blank for magnetic disk and manufacturing method of a glass substrate for magnetic disk'20148,785,010'Glass substrate for a magnetic disk and magnetic disk'20148,783,063'Glass substrate for magnetic disk and manufacturing method of the same'20148,733,129'Glass substrate for magnetic disk and manufacturing method thereof'20148,640,497'Method of manufacturing glass substrate for magnetic disk and system for manufacturing glass substrate for magnetic disk'20148,119,267'Glass substrate for magnetic disk and manufacturing method of the same'20127,703,303'Magnetic disk glass substrate manufacturing method'20106,534,120'Chemically reinforced glass manufacture method, information recording medium glass substrate manufacture method, information recording medium manufacture method, and chemical reinforcement device'20036,430,965'Process for producing glass substrate for information recording medium and process for producing recording medium using said glass substrate'20026,427,489'Process for producing glass substrate for information recording medium and process for producing recording medium using said glass substrate'20026,134,918'Method of fabricating glass substrate for magnetic disk and method of fabricating magnetic disk'20006,119,483'Process for producing glass substrate for information recording medium'20004,945,432'Magnetic disk drive with brittle disks'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2000–2020Patents assigned to HOYA CORP (19)· patent assignee history
2000–2015Based in Nirasaki, JP· patent location history
2000Based in Narasaki, JP· patent location history
2003–2015Based in Tokyo, JP· patent location history
2012–2015Patents assigned to EDA SHINJI (10)· patent assignee history
2012–2015Patents assigned to ISONO HIDEKI (10)· patent assignee history
2012–2014Patents assigned to IWATA KATSUYUKI (2)· patent assignee history
2014Patents assigned to MURAKAMI AKIRA (2)· patent assignee history
2014Based in Shinjuku-ku, JP· patent location history
2020Based in Hung Yen Province, VN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HOYA CORP | 19 | 2000–2020 |
| EDA SHINJIself | 10 | 2012–2015 |
| ISONO HIDEKI | 10 | 2012–2015 |
| IWATA KATSUYUKI | 2 | 2012–2014 |
| MURAKAMI AKIRA | 2 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Nirasaki, JP | 9 | 2000–2015 |
| Tokyo, JP | 6 | 2003–2015 |
| Shinjuku-ku, JP | 2 | 2014 |
| Hung Yen Province, VN | 1 | 2020 |
| Narasaki, JP | 1 | 2000 |