This inventor holds 15 USPTO granted patents and 2 published patent applications and 2 EPO patents. Top assignees: Renesas Electronics Corporation, Konica Minolta, Inc., Renesas Technology Corp.. Active years: 2009-2026.
Location History:
- Tokyo, JP (2009 - 2013)
- Kanagawa, JP (2012 - 2016)
- Kawasaki, JP (2016)
- Kunitachi, JP (2020)
Company Filing History:
11 out of 7,649 
2 out of 4,377 
1 out of 3,781 
Years Active: 2009-2026
Title: Ryoji Matsuda: Innovator in Spectral Filters and Semiconductor Devices
Introduction
Ryoji Matsuda is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the fields of spectral filters and semiconductor devices. With a total of 15 patents to his name, Matsuda continues to push the boundaries of innovation.
Latest Patents
Matsuda's latest patents include a spectral filter and a spectrometric device. The spectral filter is designed with a long-pass filter and a short-pass filter. The long-pass filter features a film thickness gradient that increases monotonically in a single direction, allowing it to transmit light of a wavelength region longer than a cut-off wavelength. Conversely, the short-pass filter also has a film thickness gradient that transmits light of a wavelength region shorter than a cut-off wavelength. These filters are overlapped to create a transmittance peak, enhancing their functionality. Additionally, his semiconductor device patent describes a P-type epitaxial growth layer formed on a P-type semiconductor substrate, which includes various regions that enhance its performance.
Career Highlights
Throughout his career, Ryoji Matsuda has worked with notable companies such as Renesas Electronics Corporation and Tokyo Denki University. His work in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in technology.
Collaborations
Matsuda has collaborated with esteemed colleagues, including Haruo Furuta and Shuichi Ueno. These partnerships have fostered a creative environment that has led to groundbreaking inventions.
Conclusion
Ryoji Matsuda is a distinguished inventor whose work in spectral filters and semiconductor devices has made a lasting impact on technology. His numerous patents and collaborations highlight his commitment to innovation and excellence in his field.