Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6153321 | Method of using a substrate with magnetic substance of a magnetic scale | Masayuki Togawa | 2000-11-28 |
| 5580639 | Method of manufacturing magnetic patterns | Masayuki Togawa | 1996-12-03 |
| 5527663 | Method of manufacturing a medium having a magnetic pattern | Masayuki Togawa | 1996-06-18 |
| 5445707 | Method of manufacturing article having magnetic patterns | Masayuki Togawa | 1995-08-29 |
| 5434934 | Magneto-optically modulating system | Masayuki Togawa, Minoru Takeda, Morio Kobayashi | 1995-07-18 |
| 5429911 | Method of manufacturing a medium having a magnetic pattern | Masayuki Togawa | 1995-07-04 |
| 5427675 | Method of manufacturing article having magnetic patterns | Masayuki Togawa | 1995-06-27 |
| 5350618 | Magnetic medium comprising a substrate having pits and grooves of specific shapes and depths | Masayuki Togawa | 1994-09-27 |
| 5336586 | Magnetic medium and method of manufacturing the same | Masayuki Togawa | 1994-08-09 |
| 4931634 | Optical position sensor using Kerr effect and a magnetic scale | — | 1990-06-05 |
| 4931635 | Optical position sensor using Faraday effect element and magnetic scale | — | 1990-06-05 |