Location History:
- Tokyo, JP (2002 - 2005)
- Kodaira, JP (2010)
Company Filing History:
Years Active: 2002-2010
Title: Innovations of Yasuo Sera
Introduction
Yasuo Sera is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of electronics, particularly in the development of high-frequency power amplifiers and distortion compensators. With a total of 4 patents to his name, Sera continues to push the boundaries of technology.
Latest Patents
One of his latest inventions is a high-frequency power amplifier. This device includes an amplifying mechanism for enhancing input high-frequency signals, a harmonic reflection circuit to reflect harmonics produced by the amplifier, and a harmonic generating circuit that divides the input signal into two parts. The harmonic generator creates a second harmonic from one part of the fundamental wave signal, which is then combined with the other part before being sent to the amplifier. The harmonic reflection circuit effectively reflects the second harmonic, enhancing the amplifier's performance.
Another notable patent is a distortion compensator designed to address distortion in main amplifiers. This device effectively compensates for third-order distortion that is unbalanced between higher and lower frequency bands. It features an amplitude detector to assess the signal level and a signal level change direction detection mechanism to identify the direction of signal level changes. The compensator adjusts the amplitude and phase of the signal based on the detected changes, thereby reducing distortion in the amplified signal.
Career Highlights
Yasuo Sera is currently employed at Hitachi Kokusai Electric Inc., where he applies his expertise in electronics to develop innovative solutions. His work has significantly impacted the field, particularly in enhancing the performance of electronic devices.
Collaborations
Sera has collaborated with notable colleagues, including Kiyoshi Funada and Yoichi Okubo. Their combined efforts have led to advancements in technology and the successful development of various electronic innovations.
Conclusion
Yasuo Sera's contributions to the field of electronics through his patents and collaborations highlight his role as a leading inventor. His work continues to influence the industry, paving the way for future innovations.