Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 7839725 | Quadrature detection method, quadrature detection device and radio wave timepiece | Takamoto Watanabe | 2010-11-23 | |
| 7660369 | Radio-controlled method and device for measuring time | Takamoto Watanabe | 2010-02-09 | |
| 7545887 | Synchronous detection method and device | Takamoto Watanabe, Tetsuya Nakamura | 2009-06-09 | |
| 7529153 | Positional information detecting method and device | Takamoto Watanabe | 2009-05-05 | |
| 7366619 | Signal-processing unit for fluxgate magnetometers | Takamoto Watanabe | 2008-04-29 | |
| 6891491 | Method and apparatus for correction of A/D converted output data | Mitsuo Nakamura, Takamoto Watanabe | 2005-05-10 | $294,000 |
| 4913750 | Amorphous magnetic wire | Keiichi Kakuno, Tutomu Yamada | 1990-04-03 | |
| 4692613 | Angle sensor | Hiroshi Iiyama, Kazuyuki Tamura | 1987-09-08 |