Location History:
- Kanagawa, JP (1990)
- Yokohama, JP (1993 - 1996)
- Pittsburgh, PA (US) (1996)
- Sagamihara, JP (2001 - 2004)
- Kyoto-fu, JP (2009)
- Kyoto, JP (2005 - 2023)
Company Filing History:
21 out of 13,307 
15 out of 16,453 
11 out of 52,751 
Years Active: 1990-2025
Areas of Expertise:
Title: An Insight into Ryohei Miyagawa: Innovator in Solid-State Imaging Technology
Introduction
Ryohei Miyagawa, a prominent inventor based in Kyoto, Japan, has made significant contributions to the field of imaging technology. With an impressive record of 46 patents, his innovations have paved the way for advancements in solid-state imaging devices, which play a crucial role in modern photography and video recording.
Latest Patents
Two of Ryohei Miyagawa's notable recent patents include advanced designs for solid-state imaging devices. The first patent outlines a solid-state imaging device comprising pixels arranged in a matrix, with a vertical signal line for each column to convey pixel signals, along with power and feedback signal lines. Each pixel consists of an N-type diffusion layer, a photoelectric conversion element, and a charge accumulation node, allowing for efficient signal charge accumulation.
The second patent presents an imaging device featuring a photoelectric converter that transforms light into signal charges. This device includes a charge accumulation region connected to the photoelectric converter, a transistor linked to the charge accumulation region, and a contact plug made of semiconductor material that ensures optimal electrical connection.
Career Highlights
Throughout his career, Ryohei Miyagawa has worked for notable companies, including Panasonic Intellectual Property Management Co., Ltd. and Panasonic Corporation. His work at these institutions has allowed him to refine his expertise and contribute to groundbreaking innovations in imaging technology.
Collaborations
Miyagawa’s career has also been enriched by collaboration with talented colleagues such as Hirohisa Ohtsuki and Mitsuyoshi Mori. Together, they have shared knowledge and expertise, enhancing the creativity and effectiveness of their projects in the realm of solid-state imaging.
Conclusion
Ryohei Miyagawa stands out as a visionary inventor whose work continues to influence advancements in imaging technology. His commitment to innovation, reflected in his numerous patents and fruitful collaborations, has established him as a key figure in the industry, particularly in the development of solid-state imaging devices.