Location History:
- Toshima, JP (2016)
- Toshima-ku, JP (2019)
- Tokyo, JP (2002 - 2020)
Company Filing History:
3 out of 5 
3 out of 2,333 
Years Active: 2002-2020
Title: Ryoji Matsubara: Innovations in Circuit Technology
Introduction
Ryoji Matsubara, an inventive mind based in Tokyo, Japan, has made significant contributions to the field of circuit technology with a notable portfolio of six patents. His work primarily focuses on advancements in hybrid circuits and phase shifters, impacting various applications in telecommunications and electronics.
Latest Patents
Among Matsubara's latest innovations is the **90-degree hybrid circuit**. This invention features a dielectric substrate, with a conductor pattern allowing for electrical conduction between designated ports. Its structure includes coupled lines positioned on opposing sides of the substrate, enhancing signal integrity.
Another remarkable patent is the **adjustable phase shifter**, which comprises a signal conductor, a movable dielectric plate, and a transformer unit. This design enables the efficient modification of the phase of signals transmitted through antenna elements by varying the facing area between the signal conductor and the dielectric plate, thereby improving impedance matching.
Career Highlights
Throughout his career, Ryoji Matsubara has been affiliated with esteemed organizations such as the Public Works Research Institute, the Ministry of Construction, and Hitachi Metals, Ltd. His extensive experience in research and development has played a crucial role in shaping innovative solutions in electronic engineering.
Collaborations
Matsubara has worked alongside talented professionals, including Koji Kubota and Naoya Noguchi. These collaborations have fostered the exchange of ideas and techniques, further propelling advancements in their shared fields.
Conclusion
Ryoji Matsubara stands out as a significant figure in the realm of circuit technology. His patents reflect a blend of creativity and practical application, showcasing the continuous evolution of circuit design and functionality. His contributions are set to influence future innovations in the industry, solidifying his legacy as an impactful inventor.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.