Inventor
Mitsuo Ooyama
Inventor
Hachioji, JP
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Fprimary
G06FElectric digital data processing22%
H01JElectric discharge tubes or discharge lamps17%
B82YSpecific uses or applications of nanostructures13%
G06VImage or video recognition or understanding13%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
G09GArrangements or circuits for control of indicating devices using static means to present variable information9%
G06TImage data processing or generation, in general4%
H03MCoding4%
H05KPrinted circuits4%
PatentTitleYear
6,094,647'Presearch type document search method and apparatus'20006,043,988'Hard disk drive and hard disk apparatus having bus and its installing method'20005,903,442'Hard disk drive and hard disk apparatus having bus and its installing method'19995,519,857'Hierarchical presearch type text search method and apparatus and magnetic disk unit used in the apparatus'19965,168,533'Hierarchical presearch type text search method and apparatus and magnetic disk unit used in the apparatus'19924,943,729'Electron beam lithography system'19904,829,444'Charged particle beam lithography system'19894,820,928'Lithography apparatus'19894,758,973'Apparatus for processing floating-point data having exponents of a variable length'19884,692,579'Electron beam lithography apparatus'19874,626,838'Filled shaped generating apparatus'19864,580,236'Graphic display apparatus with a vector generating circuit'1986Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1986–2000Patents assigned to HITACHI LTD (12)· patent assignee history
1986–2000Based in Hachioji, JP· patent location history
1987Patents assigned to NIPPON TELEGRAPH & TELEPHONE (1)· patent assignee history
1992Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 12 | 1986–2000 |
| NIPPON TELEGRAPH & TELEPHONE | 1 | 1987 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hachioji, JP | 11 | 1986–2000 |
| Tokyo, JP | 1 | 1992 |