Location History:
- Osaka, JP (1991)
- Sanda, JP (2003 - 2004)
- Hyogo-ken, JP (2005 - 2007)
- Hyogo, JP (2005 - 2019)
- Tokyo, JP (2018 - 2020)
- Tokorozawa, JP (2020 - 2023)
Company Filing History:
16 out of 556 
14 out of 28,577 
2 out of 301 
Years Active: 1991-2025
Title: **Yoshinori Ueda: Innovator in Photoelectric Conversion Technology**
Introduction
Yoshinori Ueda, an esteemed inventor based in Hyogo, Japan, has made significant contributions to the field of photoelectric conversion technology. With a remarkable portfolio of 16 patents, he continues to push the boundaries of innovation in this area, developing devices that enhance image generation and conversion processes.
Latest Patents
Among his latest inventions are two advanced patents focusing on photoelectric conversion devices. The first patent outlines a photoelectric conversion device that incorporates a phototransistor with distinct regions—collector, emitter, and base. This configuration generates an output current proportional to the intensity of incident light. Additionally, it includes a base potential setting unit that ensures the output current aligns with a predetermined value, enhancing the efficiency of light-based devices.
The second patent describes a comprehensive methodology involving a photoelectric conversion device equipped with a pixel cell and a reference cell. This innovative setup features a phototransistor and a corresponding reference transistor that shares identical temperature characteristics. It also integrates an analog-to-digital converter for precise digital output transformation and a correction unit to adjust this output based on a computed correction amount derived from the reference cell's performance.
Career Highlights
Yoshinori Ueda has held impactful positions in prominent companies, including Ricoh Company, Ltd., and Sumitomo Seika Chemicals Co., Ltd. His experience in these organizations has been instrumental in shaping his innovations in photoelectric technology, allowing him to apply his expertise in practical settings.
Collaborations
Throughout his career, Ueda has collaborated with talented individuals, including colleagues Katsuhiko Aisu and Yasukazu Nakatani. These partnerships have led to mutually beneficial exchanges of ideas and knowledge, further enhancing the innovative landscape of photoelectric conversion.
Conclusion
Yoshinori Ueda stands out as a leading inventor in the domain of photoelectric conversion devices. His 16 patents reflect his commitment to innovation and excellence. As he continues to develop groundbreaking technologies, Ueda's work inspires future generations of inventors and reinforces Japan's position as a hub for technological advancement.