Takahiro Shikibu

Title: The Innovations of Takahiro Shikibu

Introduction

Takahiro Shikibu is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of technology, particularly in the development of advanced processors and semiconductor apparatuses. With a total of seven patents to his name, Shikibu's work has had a notable impact on the industry.

Latest Patents

One of Shikibu's latest patents is a processor that includes core circuits and a cache unit featuring L2 to LN caches, where N is three or more. The L1 cache incorporates a move-in buffer that stores entries from memory access instructions that resulted in cache misses in the L1 cache. This move-in buffer, when issuing a normal memory request to the L2 cache, also issues a pseudo memory request to the L3 to LN caches in parallel. It receives a pseudo data response containing coherency-unsecured data from any one cache. The re-order buffer is designed to execute a normal instruction execution completion process in response to the normal data response, while also executing a pseudo instruction execution completion process in response to the pseudo data response. If the pseudo data response fails, it rewinds an arithmetic operation circuit that speculatively executed instructions after the memory access instruction back to a state before the speculative execution.

Another significant patent involves a semiconductor apparatus that selects a first packet from a plurality of packets stored in a buffer and transfers it. This apparatus switches between various conditions for grouping the packets based on a priority order and selects the first packet from a group extracted according to a given selecting scheme. It then transfers the selected packet from the buffer.

Career Highlights

Takahiro Shikibu has built a successful career at Fujitsu Corporation, where he has been instrumental in driving innovation and technological advancements. His expertise in processor design and semiconductor technology has positioned him as a key figure in the company.

Collaborations

Shikibu has collaborated with notable colleagues, including Osamu Moriyama and Gen Oshiyama, contributing to various projects that enhance the capabilities of their technological offerings.

Conclusion

Takahiro Shikibu's contributions to the field of technology through his patents and work at Fujitsu Corporation highlight his role as an influential inventor. His innovative designs in processors and semiconductor apparatuses continue to shape the future of technology.