Location History:
- Kariya, JP (1989 - 1991)
- Toyota, JP (1998)
Company Filing History:
Years Active: 1989-1998
Title: Innovations of Toshikazu Arasuna
Introduction
Toshikazu Arasuna is a notable inventor based in Kariya, Japan. He has made significant contributions to the field of sensor technology, particularly in the development of magnetic gear rotation sensors and devices for detecting magnetism. With a total of 4 patents to his name, Arasuna's work exemplifies innovation and precision in engineering.
Latest Patents
One of Arasuna's latest patents is a magnetic gear rotation sensor. This noncontact type rotation sensor can detect the rotational movement of a gear with high sensitivity and precision without causing any erroneous output. The invention applies a bias magnetic field from a bias magnet directed at the teeth of the gear. The sensor part, which is disposed within this bias magnetic field, consists of a substrate and multiple magneto-resistive elements arranged in parallel to the gear's teeth. These elements are electrically connected in series, allowing the sensor to detect variations in the magnetic vector of the bias magnetic field as the gear rotates.
Another significant patent is a device for detecting magnetism. This device includes a substrate and an insulating layer containing impurities, formed on the substrate. A ferromagnetic magnetoresistive element is placed on this interposed layer, which has a concentration of impurities below a predetermined value. The design ensures that the quality of the ferromagnetic magnetoresistive element is maintained, reducing the resistance variation ratio to less than 10%. This innovation effectively suppresses noise, enhancing the device's sensitivity to magnetism and improving its signal-to-noise ratio.
Career Highlights
Toshikazu Arasuna is currently employed at Nippondenso Co., Ltd., where he continues to innovate in the field of sensor technology. His work has garnered attention for its practical applications and contributions to advancements in engineering.
Collaborations
Arasuna has collaborated with notable coworkers, including Yoshimi Yoshino and Kenichi Ao. Their combined expertise has contributed to the successful development of innovative technologies in their field.
Conclusion
Toshikazu Arasuna's contributions to sensor technology through his patents reflect his dedication to innovation and precision. His work continues to influence advancements in the industry, showcasing the importance of research and development in engineering.