Company Filing History:
9 out of 42,485 
2 out of 149 
1 out of 1 Years Active: 1987-1993
Title: Mitsuhiro Yamaga: Innovator in High-Speed Networking Technologies
Introduction
Mitsuhiro Yamaga is a prominent inventor based in Kawasaki, Japan, known for his significant contributions to high-speed networking technologies. With a total of 10 patents to his name, he has made a lasting impact in the field of telecommunications and data transmission.
Latest Patents
One of his latest patents is the "High-speed ring LAN system," which is designed to accommodate at least one public network with a signal transmission rate of 155.57 MHz, alongside a sub-LAN with a transmission rate of 100 MHz. This innovative system achieves a signal transmission rate of 155.52 Mbps multiplied by an even number, n. The design incorporates SONET (Synchronous Optical NETwork) subframes, which consist of a 9 bytes by 9 section overhead area and a 261 bytes by 9 virtual container 4 (VC-4) area, flowing in a time-divisional n-multiplexed format. The node devices within the transmission path are equipped with multiple ports to facilitate connections to sub-LANs or public networks. Information is exchanged in fixed-length packets between the received SONET subframe and an asynchronous port, while byte-level exchanges occur between the SONET subframe and a synchronous port. Another notable patent is the "Frame strip method and apparatus therefor," which provides a solution for a bridge circuit that transparently forwards data between multiple LANs without causing frame infinite circulation. This method involves counting the number of transmission and receive frames, determining their validity based on the type of transmission frame, and stripping a receive frame from the transmission line when certain conditions are met.
Career Highlights
Mitsuhiro Yamaga has worked with notable companies such as Hitachi, Ltd. and Hitachi Microcomputer Engineering, Ltd. His experience in these organizations has contributed to his expertise in developing advanced networking solutions.
Collaborations
He has collaborated with esteemed colleagues, including Yoshihiro Takiyasu and Osamu Takada, further enhancing his innovative work in the field.
Conclusion
Mitsuhiro Yamaga's contributions to high-speed networking technologies through his patents and collaborations have established him as a key figure in the telecommunications industry. His work continues to influence advancements in data transmission and networking solutions.
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.