Tohru Kishigami is a notable inventor based in Ome, Japan. He has made significant contributions to the field of telecommunications, particularly in the development of ATM (Asynchronous Transfer Mode) technology. With a total of 3 patents to his name, Kishigami's work has had a profound impact on data transmission and network efficiency.

Latest Patents

One of Kishigami's latest patents focuses on distributing ATM cells to output ports based upon destination information using an ATM switch core and IP forwarding. This invention aims to provide an ATM relay device that achieves high-speed, large-capacity packet relaying by distributing the load on an IP forwarding unit without necessitating improvements in the operation speed or processing performance of the IP forwarding function. The invention includes an ATM switch core that distributes input ATM cells to corresponding output ports based on their destination information. Additionally, a plurality of IP forwarding units execute predetermined forwarding processes for packets obtained by reassembling ATM cells input via the respective output ports.

Another significant patent involves a data search apparatus and an internetwork relay apparatus utilizing the data search apparatus. In this invention, header data representing a frame form and a protocol is divided into two-byte segments to create multiple search sequences. Each sequence includes an entry with divided two bytes serving as Key Data, a search identifier comprising a group number and sequence number, and associative data representing the contents of search control. This entry is registered in a protocol table, allowing for efficient searches when frame data is stored in a frame buffer.

Career Highlights

Tohru Kishigami is currently employed at Kabushiki Kaisha Toshiba, a leading company in the technology sector. His work at Toshiba has allowed him to collaborate with other talented individuals in the field, further enhancing his contributions to telecommunications.

Collaborations

Some of Kishigami's notable coworkers include Kazuo Nogami and Shigeo Matsuzawa. Their collaborative efforts have likely played a role in the successful development of innovative technologies within the company.

Conclusion

Tohru Kishigami's contributions to ATM technology and data transmission have established him as a prominent figure in the field. His innovative patents reflect a commitment to enhancing network efficiency and performance.

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