Company Filing History:
Years Active: 1985-1998
Title: Sako Ishikawa: Innovator in Fault Tolerant Computing
Introduction
Sako Ishikawa is a notable inventor based in Hadano, Japan. He has made significant contributions to the field of computing, particularly in fault-tolerant systems. With a total of 5 patents to his name, Ishikawa's work has had a lasting impact on technology.
Latest Patents
One of his latest inventions is the "Uninterruptible Clock Supply Apparatus for Fault Tolerant Computer System." This invention addresses the need for seamless clock source switchover between dual clock sources in the event of a failure. It ensures that the clock output remains unaffected, thereby preventing processor malfunctions. The system includes multiple components such as a clock source, clock selector, and a clock phase adjusting unit, which work together to maintain continuity in output clock signals during a fault.
Another significant patent is the "Apparatus for Decimal Multiplication." This invention focuses on improving the efficiency of decimal multiplication by dividing a binary coded decimal (BCD) multiplier into groups. It generates partial products and adds them to an intermediate product using a carry save adder. This innovative approach enhances the speed and accuracy of decimal multiplication processes.
Career Highlights
Sako Ishikawa is currently employed at Hitachi, Ltd., where he continues to develop cutting-edge technologies. His work at Hitachi has allowed him to collaborate with other talented professionals in the field, further advancing his research and inventions.
Collaborations
Some of his notable coworkers include Toru Ohtsuki and Yoshio Oshima, who have contributed to various projects alongside Ishikawa. Their collaborative efforts have fostered an environment of innovation and creativity within their team.
Conclusion
Sako Ishikawa's contributions to fault-tolerant computing and decimal multiplication highlight his innovative spirit and dedication to advancing technology. His patents reflect a commitment to solving complex problems in computing, making him a significant figure in the field.