Location History:
- Tokyo, JP (1995 - 1996)
- Ftyu, JP (1996)
- Fuchu, JP (2007 - 2013)
Company Filing History:
5 out of 52,766 
1 out of 196 
Years Active: 1995-2013
Title: Masue Shiba: Innovator in Security and Cryptography
Introduction
Masue Shiba is a prominent inventor based in Tokyo, Japan. She has made significant contributions to the fields of security and cryptography, holding a total of five patents. Her innovative work focuses on enhancing security measures and improving cryptographic processes.
Latest Patents
One of her latest patents is a security countermeasure function evaluation program. This invention involves a security countermeasure function evaluation apparatus that utilizes an estimator to operate an input unit. The evaluation point calculation unit assesses whether each item of countermeasure information meets the sufficient condition table information. The transition probability calculation unit then calculates a transition probability based on the evaluation point derived from these assessments.
Another notable patent is an arithmetic method and apparatus for performing multiple types of cryptography. This invention includes an arithmetic apparatus designed for long product-sum operations. It features an integer unit arithmetic circuit and a finite field GF(2^m) based unit arithmetic circuit, which work in conjunction to enhance cryptographic efficiency. The apparatus also includes a selector for choosing between the two circuits and an adder circuit that manages interim result data effectively.
Career Highlights
Masue Shiba has worked with notable companies such as Toshiba Corporation and Toshiba Solutions Corporation. Her experience in these organizations has allowed her to develop and refine her innovative ideas in security and cryptography.
Collaborations
Some of her coworkers include Shigeharu Nakata and Shinichi Kawamura. Their collaboration has contributed to the advancement of technology in their respective fields.
Conclusion
Masue Shiba's contributions to security and cryptography through her patents demonstrate her innovative spirit and dedication to enhancing technology. Her work continues to influence the industry and inspire future advancements.