Company Filing History:
Years Active: 2002-2006
Title: The Innovations of Kouji Murai: A Visionary Inventor from Tokyo
Introduction
Kouji Murai is an accomplished inventor based in Tokyo, Japan, renowned for his contributions to advanced filter circuitry and acoustic wave technology. With a total of three patents under his name, Murai has made significant strides in the field of electronics and materials engineering.
Latest Patents
Murai’s latest patents reflect his innovative approach to solving complex engineering challenges. One of his notable inventions is a **filter circuit with series and parallel elements**. This filter circuitry is designed to transmit signals that fall within a specific passband while effectively attenuating those that do not. The series element incorporates a resonance component with antiresonance characteristics, whereas the parallel element includes a series circuit featuring an inductor and a capacitor.
Another noteworthy patent is his **elastic wave device**, which describes an acoustic wave apparatus. This device utilizes a surface rotated at an angle between 34° and 41° from the crystal Y axis around the crystal X axis of lithium tantalate. It is engineered to standardize the electrode thickness by a wavelength of a surface acoustic wave, and the duty ratio of the electrode finger is set to vary from 0.6 to just below 1.0. Such innovations enhance the performance and functionality of electronic devices.
Career Highlights
Kouji Murai is currently employed by Mitsubishi Electric Corporation, a leader in electrical and electronic equipment manufacturing. His work at Mitsubishi has allowed him to explore groundbreaking technologies and contribute to various projects that push the boundaries of current engineering practices.
Collaborations
Throughout his career, Murai has worked closely with esteemed colleagues, including Kenji Yoshida and Koichiro Misu. Their collaborative efforts have fostered a rich environment for innovation and have led to the development of several pioneering technologies.
Conclusion
Kouji Murai stands out as a significant inventor whose work in filter circuitry and acoustic wave devices showcases his talent and dedication to advancing technology. His contributions not only enhance the performance of electronic devices but also pave the way for new innovations in the field. With continued efforts and collaborations, Kouji Murai is poised to remain a key player in the landscape of modern inventions.