Inventor
Seiichi Nagai
Inventor
Itami, JP
Overview
Patents· 11 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 transducer25%
G02BOptical elements, systems or apparatus13%
H10HInorganic light-emitting semiconductor devices having potential barriers13%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1013%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them6%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light6%
H10DInorganic electric semiconductor devices6%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h106%
PatentTitleYear
7,596,312'Small-sized camera module in which adhesive does not flow in side electrode'20096,201,660'Magnetic recording/reproducing apparatus'20016,137,121'Integrated semiconductor light generating and detecting device'20006,081,405'Magnetic recording and reproducing device having a driving roller rotated by a motor of low torque which is press contracted with a transfer roller of a cartridge and transfers a magnetic tape'20005,345,345'Rotary head type magnetic recording/reproducing unit'19945,105,237'Semiconductor light-emitting device with partial encapsulation'19925,021,900'Tape guide driving device for rotating head type tape player'19914,995,687'Semiconductor laser device and a method of producing same'19914,947,238'Submount for semiconductor laser element'19904,001,873'Semiconductor device'19773,933,541'Process of producing semiconductor planar device'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–2000Patents assigned to MITSUBISHI ELECTRIC CORP (6)· patent assignee history
1976–1992Based in Itami, JP· patent location history
1991–2009Patents assigned to ALPS ELECTRIC CO LTD (5)· patent assignee history
1991–1994Based in Shibata, JP· patent location history
2000–2001Based in Miyagi, JP· patent location history
2000Based in Tokyo, JP· patent location history
2009Based in Fukushima, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MITSUBISHI ELECTRIC CORP | 6 | 1976–2000 |
| ALPS ELECTRIC CO LTD | 5 | 1991–2009 |
Locations
| Location | Patents | Span |
|---|---|---|
| Itami, JP | 5 | 1976–1992 |
| Miyagi, JP | 2 | 2000–2001 |
| Shibata, JP | 2 | 1991–1994 |
| Fukushima, JP | 1 | 2009 |
| Tokyo, JP | 1 | 2000 |