Location History:
- Asaka, JP (2008 - 2010)
- Saitama, JP (1995 - 2011)
- Wako, JP (2004 - 2022)
Company Filing History:
12 out of 10,092 
12 out of 5,309 
12 out of 21,927 
Years Active: 1995-2022
Title: Innovations of Tadahiro Kubota: A Pioneer in Arousal State Estimation and Solar Cell Technology
Introduction
Tadahiro Kubota is a notable inventor based in Asaka, Japan, known for his groundbreaking work in the fields of physiological data analysis and renewable energy solutions. With an impressive portfolio of 25 patents, Kubota continues to push the boundaries of innovation, particularly in the areas of arousal state estimation apparatuses and methods, as well as thin-film solar cell technology.
Latest Patents
One of Kubota's latest inventions is the "Arousal State Estimation Apparatus and Arousal State Estimation Method." This invention involves an apparatus that acquires various types of feature values related to a human body's arousal state from physiological data. The device estimates the arousal state by utilizing a principal feature value and has a unique fallback mechanism to estimate using alternative feature values when the principal value is unavailable.
Another significant patent of Kubota's is the "Method for Forming an Absorber Layer of a Thin Film Solar Cell." This innovative method outlines the formation of a light absorber layer comprising multiple sub-layers created from specific mixtures containing elements like Cu, Se, In, and Ga. By progressively adjusting the composition ratio of In to Ga, Kubota's technique allows for the efficient mass production of solar cells with improved efficiency due to the favorable band gap gradient structure.
Career Highlights
Kubota has made substantial contributions to the field of technology through his work at reputable companies, including Honda Engineering Co., Ltd. and Honda Motor Co., Ltd. His experience in these organizations has enabled him to hone his inventive skills and focus on developing technologies that address real-world problems.
Collaborations
In his pursuit of innovation, Kubota has collaborated with notable colleagues such as Jun Sasahara and Nariaki Kuriyama. These collaborations have fostered a creative environment, encouraging the exchange of ideas and the development of impactful technologies.
Conclusion
Tadahiro Kubota's work exemplifies a commitment to advancing technology through innovative solutions in physiological data analysis and solar energy. With his continued ingenuity and collaboration with other inventors, Kubota remains a significant figure in the world of patents and inventions, paving the way for future developments in these vital fields.