Inventor
Toshifumi Ohkubo
Inventor
Tokyo, JP
Overview
Patents· 5 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 transducer33%
B82YSpecific uses or applications of nanostructures13%
Y10TTechnical subjects covered by former us classification13%
G03HHolographic processes or apparatus7%
G11CStatic stores7%
H01FMagnets7%
H01LSemiconductor devices7%
H10DInorganic electric semiconductor devices7%
H10NElectric solid-state devices not otherwise provided for7%
PatentTitleYear
11,004,465Magneto-resistance element in which I-III-VI2 compound semiconductor is used, method for manufacturing said magneto-resistance element, and magnetic storage device and spin transistor in which said magneto-resistance element is used20217,368,146'Magneto-optical recording medium, manufacturing method thereof and magneto-optical data recording and playback device'20086,785,201'Optical information recording and reading apparatus'20046,759,137'Opto-magnetic recording medium with a garnet ferrite recording layer, and opto-magnetic information recording/reproducing device'20046,729,541'Information reading apparatus and information recording medium'2004Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2004–2008Patents assigned to NIPPON TELEGRAPH & TELEPHONE (2)· patent assignee history
2004Patents assigned to CT NAT DE LA RECH SCIENT INC (1)· patent assignee history
2004Patents assigned to HIROTA TERUNAO (1)· patent assignee history
2004Patents assigned to HOSAKA HIROSHI (1)· patent assignee history
2004–2008Based in Tokyo, JP· patent location history
2004Based in Suginami-ku, JP· patent location history
2008Patents assigned to CENTRE NAT RECH SCIENT (1)· patent assignee history
2021Based in Ibaraki, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NIPPON TELEGRAPH & TELEPHONE | 2 | 2004–2008 |
| CENTRE NAT RECH SCIENT | 1 | 2008 |
| CT NAT DE LA RECH SCIENT INC | 1 | 2004 |
| HIROTA TERUNAO | 1 | 2004 |
| HOSAKA HIROSHI | 1 | 2004 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 3 | 2004–2008 |
| Ibaraki, JP | 1 | 2021 |
| Suginami-ku, JP | 1 | 2004 |