Location History:
- Kawagoe, JP (2004)
- Saitama-ken, JP (2005)
Company Filing History:
Years Active: 2004-2005
Title: Seiji Imada: Innovator in Angular Velocity Detection
Introduction
Seiji Imada is a notable inventor based in Saitama-ken, Japan. He has made significant contributions to the field of angular velocity detection, holding two patents that showcase his innovative approach to technology.
Latest Patents
One of his latest patents is an angular velocity detection device. This device includes an angular velocity detector that delivers a first sensor output corresponding to the angular velocity of a mobile unit. It features a learning unit that learns a sensitivity coefficient based on the first sensor output and an output from a GPS positioning unit. Additionally, it has an acceleration detector that provides a second sensor output related to the mobile unit's acceleration. A sensitivity coefficient correction unit determines a corrected sensitivity coefficient based on the sensitivity coefficient and the second sensor output. Finally, an angular velocity converter multiplies the first sensor output by the corrected sensitivity coefficient to calculate the actual angular velocity of the mobile unit. This device allows for accurate calculations of angular velocity using the corrected sensitivity coefficient.
Another significant patent by Imada is a method of and apparatus for detecting angular velocity, as well as a method for detecting angle. This invention includes processes for setting a bias voltage as a standard voltage from an angular velocity sensor under predetermined conditions. It calculates the angle based on the difference between the output voltage and the standard voltage. The method also involves storing time data that indicates when the standard voltage is set or updated, estimating the bias voltage of the angular velocity sensor, and correcting the calculated angle based on the difference between the standard voltage and the estimated bias voltage.
Career Highlights
Seiji Imada is currently employed at Pioneer Corporation, where he continues to develop innovative technologies. His work has significantly impacted the field of navigation systems and angular velocity detection.
Collaborations
Imada has collaborated with notable coworkers, including Isao Endo and Seiji Goto, contributing to advancements in their respective fields.
Conclusion
Seiji Imada's contributions to angular velocity detection through his patents demonstrate his innovative spirit and dedication to technology. His work continues to influence advancements in navigation systems and related technologies.