Location History:
- Kyoto, JA (1978)
- Osaka, JP (1989 - 1991)
Company Filing History:
Years Active: 1978-1991
Title: Shigeo Kuninobu: Innovator in High-Speed Arithmetic Processing
Introduction
Shigeo Kuninobu is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of arithmetic processing, holding a total of 9 patents. His work focuses on enhancing the efficiency and speed of arithmetic operations through innovative designs.
Latest Patents
One of his latest patents is for signed-digit arithmetic processing units with binary operands. This high-speed arithmetic processor features an array of arithmetic cells that operate on digits represented in a signed-digit binary format. Notably, certain cells perform subtraction operations on ordinary binary digits, producing the difference in a 2-bit signed-digit binary format without the need for a separate converter. Another significant patent involves divider and arithmetic processing units using signed digit operands. This high-speed divider circuit implements a shift/subtract division method utilizing signed-digit binary expressions for internal operands. It includes a quotient determining circuit that calculates the quotient digit from the partial remainder, along with multiple arithmetic cells that determine successive quotient digits by subtracting the product of the divisor from the sequential partial remainders.
Career Highlights
Shigeo Kuninobu is currently employed at Matsushita Electric Industrial Co., Ltd., where he continues to innovate in the field of arithmetic processing. His work has been instrumental in developing more efficient and simpler integrated circuits.
Collaborations
Throughout his career, Kuninobu has collaborated with notable colleagues such as Tamotsu Nishiyama and Naofumi Takagi. Their combined expertise has contributed to the advancement of technology in arithmetic processing.
Conclusion
Shigeo Kuninobu's contributions to high-speed arithmetic processing have made a lasting impact on the field. His innovative patents and collaborations highlight his dedication to advancing technology.