Inventor
Tatsuo Nitta
Inventor
Ome, JP
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G04Gprimary
G04GElectronic time-pieces19%
G11BInformation storage based on relative movement between record carrier and transducer16%
H04BTransmission11%
G04BMechanically-driven clocks or watches8%
H01QAntennas, i.e. radio aerials8%
G01CMeasuring distances, levels or bearings5%
B63CLaunching, hauling-out, or dry-docking of vessels3%
B82YSpecific uses or applications of nanostructures3%
C04BLime, magnesia3%
G01RMeasuring electric variables3%
PatentTitleYear
10,600,437Magnetic head having difference skew angles at different regions on magnetic recording disk20208,947,818'Disk storage apparatus and data protection method'20158,416,518'Magnetic disk drive and method for rewriting data block'20138,411,386'Data write control apparatus and data write control method'20138,363,349'Recording medium controller and method thereof'20137,525,745'Magnetic disk drive apparatus and method of controlling the same'20096,980,165'Communication apparatus with antenna'20056,400,731'Variable rate communication system, and transmission device and reception device applied thereto'20026,349,075'Electron equipment'20026,278,873'Wristwatch-type communication device and antenna therefor'20016,240,279'Transmission power control apparatus and a radio communication apparatus including the transmission power control apparatus'20016,024,791'Molded bodies of cement type admixed and kneaded material having excellent bending strength and compression strength and a method of manufacturing the same'20005,878,004'Electronic equipment with vibration alarm'19995,519,671'Electronic equipment with depth measuring function'19965,224,059'Device for measuring altitude and barometric pressure'19934,370,067'Electronic timepiece with gain/loss adjustment'19834,300,222'Electronic timepiece'19814,173,117'Electronic timepiece'1979Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1979–2001Patents assigned to CITIZEN WATCH CO LTD (7)· patent assignee history
1979–1983Based in Tokorozawa, JP· patent location history
1993–2002Based in Kawagoe, JP· patent location history
2001–2020Patents assigned to TOSHIBA KK (9)· patent assignee history
2001–2013Based in Tokyo, JP· patent location history
2009–2015Based in Ome, JP· patent location history
2013Patents assigned to HAGA TATSUYA (3)· patent assignee history
2013Patents assigned to HONGAWA TADASHI (3)· patent assignee history
2013Patents assigned to NITTA TATSUO (3)· patent assignee history
2020Based in Machida, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TOSHIBA KK | 9 | 2001–2020 |
| CITIZEN WATCH CO LTD | 7 | 1979–2001 |
| HAGA TATSUYA | 3 | 2013 |
| HONGAWA TADASHI | 3 | 2013 |
| NITTA TATSUOself | 3 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ome, JP | 4 | 2009–2015 |
| Tokyo, JP | 4 | 2001–2013 |
| Kawagoe, JP | 4 | 1993–2002 |
| Tokorozawa, JP | 3 | 1979–1983 |
| Machida, JP | 1 | 2020 |