Inventor
Eiji Tosaka
Inventor
Tokyo, JP
Overview
Patents· 20 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Fprimary
G06FElectric digital data processing82%
G11BInformation storage based on relative movement between record carrier and transducer18%
PatentTitleYear
10,909,087Rollback on a sequential storage medium to a specific point in time202110,642,736Efficient cache memory having an expiration timer202010,248,563Efficient cache memory having an expiration timer201910,162,564Selecting a virtual tape server in a storage system to provide data copy while minimizing system job load201810,082,977Storing data in storage area20189,886,211'Selecting a virtual tape server in a storage system to provide data copy while minimizing system job load'20189,836,237Storing data in storage area20179,733,865'Delay mechanism on fibre channel'20179,710,336'File deduplication in a file system'20179,612,917'Systems and methods for backing up storage volumes in a storage system'20179,477,422'Selecting a virtual tape server in a storage system to provide data copy while minimizing system job load'20169,454,988'Tape storage device'20169,256,610'File deduplication in a file system'20169,135,128'Systems and methods for backing up storage volumes in a storage system'20158,873,186'Tape storage device'20148,812,460'File deduplication in a file system'20148,745,333'Systems and methods for backing up storage volumes in a storage system'20148,595,430'Managing a virtual tape library domain and providing ownership of scratch erased volumes to VTL nodes'20138,484,419'Systems and methods for backing up storage volumes in a storage system'20138,037,346'Avoiding a part of tape where error occurs by computing a number of records and a number of boundary marks included in an error data unit'2011Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2011–2021Patents assigned to IBM (20)· patent assignee history
2011Based in Kita-ku, JP· patent location history
2013–2018Patents assigned to TOSAKA EIJI (5)· patent assignee history
2013–2018Patents assigned to IWASAKI NORIE (3)· patent assignee history
2013–2018Patents assigned to KATORI KATSUYOSHI (3)· patent assignee history
2013–2018Patents assigned to NOHTA TAKESHI (3)· patent assignee history
2013–2021Based in Tokyo, JP· patent location history
2014–2018Based in Yamato, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IBM | 20 | 2011–2021 |
| TOSAKA EIJIself | 5 | 2013–2018 |
| IWASAKI NORIE | 3 | 2013–2018 |
| KATORI KATSUYOSHI | 3 | 2013–2018 |
| NOHTA TAKESHI | 3 | 2013–2018 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 13 | 2013–2021 |
| Yamato, JP | 6 | 2014–2018 |
| Kita-ku, JP | 1 | 2011 |