This inventor holds 6 USPTO granted patents and 1 published patent application. Top assignees: Canon Kabushiki Kaisha, Sony Semiconductor Solutions Corporation. Active years: 2016-2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Musashino, JP (2016)
- Tokyo, JP (2022 - 2023)
Company Filing History:
4 out of 92,901 
2 out of 3,282 
Years Active: 2016-2026
Title: Keigo Nakazawa: Innovator in Photoelectric Conversion Technology
Introduction
Keigo Nakazawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of photoelectric conversion devices and imaging systems. With a total of four patents to his name, Nakazawa continues to push the boundaries of technology in his field.
Latest Patents
His latest patents include a photoelectric conversion device and an imaging system. One embodiment features a semiconductor substrate that includes a pixel well region and a peripheral well region. It also incorporates a pixel ground line arranged above the pixel well region, along with a pixel well contact between the pixel ground line and the pixel well region. The design includes pixels arranged to form columns in the pixel well region, a reference signal generation circuit in the peripheral well region, and comparator units for each column. Each comparator unit is equipped with a comparator that has a first input node for the pixel signal and a second input node for the reference signal. Additionally, it features capacitor units that connect various components to facilitate efficient signal processing.
Another patent describes a photoelectric conversion device with a select circuit that includes a switch circuit with multiple switches. This device also consists of pixels forming columns, each configured to output a pixel signal, and comparator units that receive the pixel signal and the reference signal. The design allows for flexible connections between the reference signal line and a reference voltage line during different modes of AD conversion.
Career Highlights
Keigo Nakazawa is currently employed at Canon Kabushiki Kaisha, a leading company in imaging and optical products. His work at Canon has allowed him to develop innovative technologies that enhance imaging systems and photoelectric devices.
Collaborations
Throughout his career, Nakazawa has collaborated with notable colleagues such as Kazuhiro Saito and Tetsuya Itano. These collaborations have contributed to the advancement of technology in their respective fields.
Conclusion
Keigo Nakazawa is a distinguished inventor whose work in photoelectric conversion technology has made a significant impact. His innovative patents and contributions to Canon demonstrate his commitment to advancing technology in imaging systems.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile