Location History:
- Tokyo, JP (2017)
- Tsuchiura, JP (2014 - 2019)
Company Filing History:
3 out of 2,333 
1 out of 836 
1 out of 7 
Years Active: 2014-2019
Title: Hitoshi Kuwata: Innovator in Network Systems
Introduction
Hitoshi Kuwata is a notable inventor based in Tsuchiura, Japan. He has made significant contributions to the field of network systems, holding a total of 5 patents. His work focuses on enhancing network efficiency and functionality through innovative designs and systems.
Latest Patents
One of Kuwata's latest patents is a network system and relay device. This system includes a VXLAN region connected to a vEPC virtual network, where encapsulation by VXLAN is performed. It also features a PBB region for PBB encapsulation, an edge router in the VXLAN region connected to an edge switch in the PBB region, and an edge switch in the PBB region connected to the edge router. The edge router facilitates conversion between a VNID of data encapsulated by VXLAN and an intermediate CVID of decapsulated data exchanged with the edge switch. Additionally, the edge switch converts an ISID of data encapsulated by PBB into the intermediate CVID.
Another significant patent is a relay system and switching device for a layer 3 network. In this system, when IGMP packets are relayed to a predetermined router (L3SW), the first and second L2SWs update their snooping tables by snooping. The first L2SW acquires a correspondence relation from the second L2SW's snooping table through a control plane and registers it in its own snooping table. When the first L2SW receives a multicast packet destined for a multicast group, it extracts corresponding IP addresses from its snooping table and converts the multicast packet into unicast packets directed to those IP addresses.
Career Highlights
Kuwata has worked with prominent companies such as Hitachi Metals, Ltd. and Hitachi Cable, Inc. His experience in these organizations has contributed to his expertise in network systems and innovations.
Collaborations
Throughout his career, Kuwata has collaborated with notable colleagues, including Toshihiko Murakami and Kazuhiro Maeda. These collaborations have likely enriched his work and led to further advancements in his field.
Conclusion
Hitoshi Kuwata is a distinguished inventor whose contributions to network systems have made a significant impact. His innovative patents and collaborations reflect his dedication to advancing technology in this area.