Location History:
- Palo Alto, CA (US) (2001)
- Menlo Park, CA (US) (2001 - 2005)
Company Filing History:
2 out of 3 
1 out of 20,475 
2 out of 832,966 Years Active: 2001-2005
Title: Yoichi Hariguchi: Innovator in Network Routing Technologies
Introduction
Yoichi Hariguchi is a notable inventor based in Menlo Park, CA (US). He has made significant contributions to the field of network routing, holding a total of 5 patents. His work focuses on improving the efficiency and effectiveness of routing technologies.
Latest Patents
One of Hariguchi's latest patents is a "Network routing table and packet routing method." This invention involves a routing table circuit for routers that includes multiple input and output ports for message communication. The routing table circuit features one or more routing table memories that store various routing table arrays, which are organized hierarchically. Each array is linked to a specific subset of prefixes and contains entries that include a block default route pointer field and a routing field. This innovation reduces memory accesses and update costs for route insertion and deletion by efficiently managing elements that do not require updates.
Another significant patent is for "Methods and apparatus for mapping ranges of values into unique values of particular use for range matching operations using an associative memory." This invention provides methods for maintaining ranges and identifying whether a value matches one of these ranges. It includes a range programming engine that generates mapped subtrie values for each range, allowing for efficient lookups in an associative memory. This approach minimizes the number of entries needed to determine if a value falls within a specified range.
Career Highlights
Throughout his career, Yoichi Hariguchi has worked with various companies, including Mayan Networks Corporation. His expertise in network technologies has positioned him as a valuable asset in the industry.
Collaborations
Hariguchi has collaborated with notable professionals such as Jayant K Talajia and G Paul Ziemba. These collaborations have contributed to the advancement of his innovative projects.
Conclusion
Yoichi Hariguchi's contributions to network routing technologies demonstrate his commitment to innovation and efficiency. His patents reflect a deep understanding of complex routing systems and their practical applications.