Location History:
- Moriguchi, JP (1995)
- Hyogo, JP (1995 - 2007)
Company Filing History:
9 out of 27,375 
2 out of 655 
1 out of 832,912 Years Active: 1995-2007
Title: Hirokazu Yonezawa: Innovator in Semiconductor Technology
Introduction
Hirokazu Yonezawa is a prominent inventor based in Hyogo, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 12 patents. His work focuses on improving the performance and reliability of integrated circuits.
Latest Patents
Yonezawa's latest patents include a timing verification method for semiconductor integrated circuits. This method involves calculating the non-uniformity of statistical skews between multiple clock output terminal pairs. A partial circuit driven by a clock output terminal pair is extracted from the integrated circuit, and a second statistical timing characteristic is obtained from the first statistical timing characteristic of the signal paths in the extracted partial circuit. This process allows for effective timing verification of the integrated circuit using the second statistical timing characteristics corresponding to the respective statistical clock skews. Another notable patent is an apparatus for statistical LSI delay simulation. This apparatus includes a circuit simulator for simulating circuit operations, a statistical delay library generator, a delay calculator, and a static timing analyzer. Together, these components generate a statistical LSI delay analysis result file that aids in understanding delay variations in LSI operations.
Career Highlights
Throughout his career, Yonezawa has worked with notable companies such as Matsushita Electric Industrial Co., Ltd. and Matsushita Electronics Corporation. His experience in these organizations has allowed him to develop innovative solutions that address complex challenges in semiconductor design and manufacturing.
Collaborations
Yonezawa has collaborated with several talented individuals in the field, including Seiji Yamaguchi and Satoshi Ishikura. These collaborations have contributed to the advancement of technology and the successful development of various projects.
Conclusion
Hirokazu Yonezawa's contributions to semiconductor technology through his patents and collaborations highlight his role as an influential inventor. His innovative methods and apparatuses continue to shape the future of integrated circuit design and performance.