Location History:
- Katsuta, JP (1995)
- Ebina, JP (1993 - 1998)
Company Filing History:
5 out of 42,496 
4 out of 23 
2 out of 836 
Years Active: 1993-1998
Title: **Hisayuki Maruyama: Innovator in Communication Technology**
Introduction
Hisayuki Maruyama, an accomplished inventor based in Ebina, Japan, has made significant contributions to the field of communication systems. With a total of five patents to his name, his work focuses on enhancing the efficiency and reliability of data transmission processes.
Latest Patents
Maruyama's latest innovations include a novel **Method of Locating Fault of Communication System**, which incorporates a series of fault locating functions across multiple levels. These functions range from rapid fault location to more dependable methods, allowing for sequential performance in case a fault is not accurately identified at the initial stage. Notably, the system can reconfigure the data transmission channel to circumvent the fault, ensuring quick identification of probable faults while accurately locating harder-to-detect issues.
Another significant patent is his **Data Transmission Method and System Thereof**, which utilizes a token passing method to enhance data transmission efficiency. This system is designed to allow periodic cyclic data transmission while accommodating packet data communication without interrupting the cyclic flow. By managing token circulation efficiently, the method enables each station to effectively transmit data within the allotted cycle time.
Career Highlights
Throughout his career, Maruyama has worked at renowned organizations such as Hitachi Ltd. and Hitachi Process Computer Engineering, Inc., where he has honed his skills in communication technology. His innovative contributions have garnered recognition within the industry.
Collaborations
Maruyama has collaborated with notable colleagues, including Sadao Mizokawa and Masato Satake, leveraging their combined expertise to drive forward advancements in communication systems and technologies.
Conclusion
Hisayuki Maruyama continues to influence the field of communication with his inventive approaches and patented technologies. His work not only addresses current challenges but also paves the way for future innovations in data transmission and fault tolerance, marking him as an important figure in the realm of technology.