Inventor
Toshihiko Nakajima
Inventor
Kanagawa, JP
Overview
Patents· 10 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 transducer50%
H04NPictorial communication, e.g. television19%
B64FGround or aircraft-carrier-deck installations specially adapted for use in connection with aircraft6%
F16CShafts6%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes6%
H01FMagnets6%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters6%
PatentTitleYear
7,443,429'Disk recording apparatus, calculating the predicted time until recording is completed on a disk-shaped recording medium'20086,594,547'Baggage managing system in airport'20036,188,834'Device and method for recording and reproducing image information'20016,134,067'Cassette device for using cassettes with and without a second recording medium in the cassette'20005,793,561'Rotary drum assembly having dynamic-pressure generating mechanism between rotary shaft and bearing'19985,659,400'Information signal recording device for recording main information signal with index signal for rapidly and accurately searching main information signal'19975,483,401'Rotary head drum having a connecting member for providing electrical conduction'19965,220,475'Rotary head drum unit with grooves or protrusions on a stationary drum for lessening tape contact during rewinding'19935,107,380'Rotary head type recording or reproducing apparatus detecting the slack of the recording medium'19924,356,437'Control circuit for DC motors'1982Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1982Patents assigned to HITACHI LTD (1)· patent assignee history
1982Based in Yokohama, JP· patent location history
1992–2008Patents assigned to CANON KK (8)· patent assignee history
1992–2008Based in Kanagawa, JP· patent location history
2003Patents assigned to HUDSON SOFT CO LTD (1)· patent assignee history
2003Based in Hokkaido, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CANON KK | 8 | 1992–2008 |
| HITACHI LTD | 1 | 1982 |
| HUDSON SOFT CO LTD | 1 | 2003 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kanagawa, JP | 8 | 1992–2008 |
| Hokkaido, JP | 1 | 2003 |
| Yokohama, JP | 1 | 1982 |