Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7876091 | Magnetic encoder | — | 2011-01-25 |
| 7521924 | Member position detection apparatus not affected by external magnetic field | Hirofumi Okumura | 2009-04-21 |
| 7405560 | GMR angle sensor for vehicles | Yoshikazu Shimizu, Kenji Honda | 2008-07-29 |
| 7265540 | Angle sensor having low waveform distortion | Yoshihiro Sudo, Yoshikazu Shimizu, Naoya Hasegawa, Fumihito Koike | 2007-09-04 |
| 7231313 | Method of calculating compensation value for angle detecting sensor and angle detecting sensor using the method | Yuichi Shonai, Kazuo Hasegawa, Kazuhiko Fujita | 2007-06-12 |
| 7193411 | Angle sensor having low waveform distortion | Yoshihiro Sudo, Yoshikazu Shimizu, Naoya Hasegawa, Fumihito Koike | 2007-03-20 |
| 6920684 | Assembling method for producing a magnetic sensor with high output accuracy | Yuichi Shonai, Seiji Kikuchi | 2005-07-26 |
| 6900713 | Magnetic switch capable of instantaneous switching of an output signal and magnetic sensor | Masao Kasashima, Hirofumi Okumura, Seiji Kikuchi | 2005-05-31 |
| 6683544 | Seat position sensor | Yoshihiro Sudo | 2004-01-27 |
| 6640652 | Rotation angle sensor capable of accurately detecting rotation angle | Seiji Kikuchi, Masao Kasashima | 2003-11-04 |
| 6539329 | Apparatus for detecting rotational angle by employing two or more detection signals based on rotational angle and rotational direction of rotating member | Hironori Kato, Yoshio Sanpei, Toshiyuki Hoshi, Hirofumi Okumura, Toshio Ogawa | 2003-03-25 |
| 6191577 | Magnetic sensor exhibiting large change in resistance at low external magnetic field | Yoshito Sasaki, Naoya Hasegawa, Akihiro Makino, Seiji Kikuchi | 2001-02-20 |
| 5117319 | Magnetic movement sensing device | — | 1992-05-26 |
| 5081756 | Methods for assembling and adjusting a magnetic encoder device | Hiraku Abe, Hidemasa Suzuki, Yasuaki Ogawa | 1992-01-21 |
| 5035960 | Magnetic recording medium for magnetic encoder | Tomoo Kamigaki, Satoshi Yanagita, Koro Hayasaka | 1991-07-30 |
| 4959574 | Precision Gap Magnetic Encode Device | Hidemasa Suzuki, Hiraku Abe, Yasuaki Ogawa | 1990-09-25 |
| 4845456 | Magnetic sensor | Hiraku Abe | 1989-07-04 |
| 4733071 | Optical encoder with variable fiber/phase angle adjustment | — | 1988-03-22 |
| 4705348 | Optical switch | Hiroshi Matsunaga, Yoji Shimojima, Kosei Obata | 1987-11-10 |
| 4684210 | Light transmission device | Hiroshi Matsunaga, Yoji Shimojima, Kosei Obata | 1987-08-04 |
| 4659924 | Rotary encoder wherein phase difference is adjusted by the radial position of the sensor head | — | 1987-04-21 |
| 4650995 | Reflection type optical rotary encoder | Yoji Shimojima | 1987-03-17 |
| 4634862 | Method of fabricating rotor of optical rotary encoder | Hiroshi Matsunaga, Yoji Shimojima | 1987-01-06 |
| 4617460 | Optical fiber sensor having shaped ends | Hiroshi Matsunaga, Yoji Shimojima | 1986-10-14 |
| 4606223 | Device for detecting rotating speed of thin shape motor | Hiroshi Matsunaga, Yoji Shimojima, Kosei Obata, Yukihiko Yasuhara | 1986-08-19 |