Tomohiko Shibata

Title: Tomohiko Shibata: Innovator in Imaging Technology

Introduction

Tomohiko Shibata is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of imaging technology, holding a total of 3 patents. His work focuses on enhancing the performance and accuracy of imaging devices, particularly in managing excessive light exposure.

Latest Patents

Shibata's latest patents include innovative solutions for imaging apparatuses and electronic devices. One of his notable inventions addresses the problem of detecting excessive light received by an image sensor with high accuracy without increasing the circuit scale. This imaging apparatus features a pixel unit that includes a photoelectric conversion element and a first transistor, which outputs a signal photoelectrically converted by the photoelectric conversion element to a signal line. Additionally, it incorporates an excessive light amount detection circuit that accurately detects when the photoelectric conversion element receives too much light. This circuit includes a second transistor and a capacitor connected in series between the signal line and a reference potential node, along with a dummy circuit that adjusts the gate voltage of the second transistor based on various factors.

Another significant patent involves a solid-state imaging device and electronic device. This invention includes a photoelectric conversion unit that generates a photoelectric charge, a sense node that holds this charge, and a discharge transistor for discharging the charge to the outside. A voltage control unit is also included, which manages the off voltage applied to the gate of the discharge transistor when it is turned off.

Career Highlights

Tomohiko Shibata is currently employed at Sony Semiconductor Solutions Corporation, where he continues to innovate in the field of imaging technology. His work has been instrumental in advancing the capabilities of electronic devices, particularly in the realm of image sensors.

Collaborations

Shibata has collaborated with notable colleagues, including Kiyoshige Tsuji and Toshikazu Oda, contributing to various projects that enhance imaging technology.

Conclusion

Tomohiko Shibata's contributions to imaging technology through his patents and work at Sony Semiconductor Solutions Corporation highlight his role as a key innovator in the field. His inventions not only address critical challenges in image sensing but also pave the way for future advancements in electronic devices.