Inventor
Michio Iijima
Inventor
Tokyo, JP
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Fprimary
G06FElectric digital data processing75%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests25%
PatentTitleYear
10,628,488Document retrieval system and retrieval method202010,423,613Data search method and data search system201910,394,870Search method20197,711,726'Method, system and program for creating an index'20107,689,545'System and method to enable parallel text search using in-charge index ranges'20107,440,938'Method and apparatus for calculating similarity among documents'2008Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2008–2020Patents assigned to HITACHI LTD (6)· patent assignee history
2008–2010Based in Yokohama, JP· patent location history
2010–2020Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 6 | 2008–2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 4 | 2010–2020 |
| Yokohama, JP | 2 | 2008–2010 |