Company Filing History:
Years Active: 2006-2008
Title: Shima Okada: Innovator in Sleep State Estimation Technology
Introduction
Shima Okada is a prominent inventor based in Osaka, Japan. She has made significant contributions to the field of sleep state estimation technology. With a total of 2 patents, her work focuses on developing devices and programs that enhance the understanding of sleep states through non-invasive methods.
Latest Patents
Okada's latest patents include a sleep state estimating device and program product. This innovative device estimates the sleep state of a subject by analyzing respiration signals that can be easily detected without restraining the individual. The technology calculates positive peak values and the time intervals between adjacent peaks from a voltage waveform based on respiratory movements. Additionally, it assesses the area enclosed by the voltage waveform and the time axis between peaks. The calculated values are then utilized to set a preliminary sleep state value for a specified period, allowing for a comprehensive estimation of the sleep state at any given time.
Another notable patent is a sleep state estimation device designed to provide real-time estimations of sleep states, such as deep sleep and light sleep, with relative simplicity. This device measures voltage variations resulting from human respiratory movements and calculates mean peak interval values and coefficients of variation based on the peak intervals and values. The sleep state is then estimated by comparing these calculated values against predetermined thresholds.
Career Highlights
Shima Okada has established herself as a key figure in her field through her innovative work at Sanyo Electric Co., Ltd. Her contributions have not only advanced technology but have also provided valuable insights into sleep science.
Collaborations
Okada has collaborated with notable coworkers, including Yasushi Yamamoto and Yoshihisa Fujiwara. These partnerships have further enriched her research and development efforts in sleep state estimation technology.
Conclusion
Shima Okada's innovative work in sleep state estimation technology has the potential to revolutionize how we understand and monitor sleep. Her patents reflect a commitment to advancing non-invasive methods for assessing sleep states, contributing significantly to the field.