Keiichiro Sakurai

Title: Keiichiro Sakurai: Innovator in Solid State Imaging Technology

Introduction

Keiichiro Sakurai is a prominent inventor based in Ibaraki, Japan. He has made significant contributions to the field of solid state imaging devices, holding a total of 5 patents. His work focuses on enhancing the efficiency and performance of photoelectric conversion devices.

Latest Patents

Sakurai's latest patents include a solid state imaging device and a fabrication method for the same. This innovative device features a circuit unit formed on a substrate, along with a photoelectric conversion unit. The photoelectric conversion circuit consists of a lower electrode layer, a compound semiconductor thin film of chalcopyrite structure, and an optical transparent electrode layer. These components are laminated sequentially on the circuit unit to create a highly efficient imaging device.

Another notable patent is for a photoelectric conversion device that boasts a high signal-to-noise (S/N) ratio, which increases detection efficiency even under low luminance conditions. This device generates an increased electric charge through impact ionization within a chalcopyrite type semiconductor, thereby improving dark current characteristics. The design includes a lower electrode layer, a high resistivity layer on the compound semiconductor thin film, and a transparent electrode layer, all working together to enhance performance.

Career Highlights

Throughout his career, Keiichiro Sakurai has worked with esteemed organizations such as the National Institute of Advanced Industrial Science and Technology and Rohm Co., Ltd. His experience in these institutions has allowed him to develop cutting-edge technologies in the field of imaging devices.

Collaborations

Sakurai has collaborated with notable colleagues, including Shogo Ishizuka and Shigeru Niki. Their combined expertise has contributed to the advancement of solid state imaging technologies.

Conclusion

Keiichiro Sakurai's innovative work in solid state imaging devices has significantly impacted the field of photoelectric conversion technology. His patents reflect a commitment to enhancing device performance and efficiency, making him a key figure in this area of research.