Location History:
- Osaka, JP (1992 - 2000)
- Hirakata, JP (1988 - 2002)
Company Filing History:
Years Active: 1988-2002
Title: Masakatsu Maruyama: Innovator in Cryptography and Neural Networks
Introduction
Masakatsu Maruyama is a prominent inventor based in Osaka, Japan. He has made significant contributions to the fields of cryptography and neural networks. With a total of 13 patents, Maruyama's work has had a substantial impact on technology and innovation.
Latest Patents
One of his latest patents is a block cipher that utilizes key data merged with an intermediate block generated from a previous block. This cryptographic processing apparatus is designed to perform cryptographic processing using input data to generate output data. It includes a storage unit for storing chain data, which reflects present cryptographic processing on subsequent processing. The merging unit combines the chain data with input data to create merged data, while the main cryptographic processing unit performs the core processing to generate output data. The storage unit also renews the chain data by storing intermediate data outputted during the generation of the output data.
Another notable patent involves a neural network for voice and pattern recognition. This neural network circuit is capable of recognizing voices and images. It comprises a weight memory that holds initial weight values corresponding to multiple input terminals of neurons. Additionally, a difference value memory stores the difference between the weight values and newly learned weight values. This setup allows for high-speed learning of new numerals and characters, ensuring accurate recognition without errors.
Career Highlights
Masakatsu Maruyama is associated with Matsushita Electric Industrial Co., Ltd., a leading company in the electronics industry. His work at this organization has allowed him to develop innovative technologies that enhance cryptographic security and improve neural network capabilities.
Collaborations
Throughout his career, Maruyama has collaborated with notable colleagues, including Shiro Sakiyama and Hiroyuki Nakahira. These partnerships have contributed to the advancement of his research and the successful development of his inventions.
Conclusion
Masakatsu Maruyama's contributions to cryptography and neural networks exemplify his innovative spirit and dedication to technology. His patents reflect a commitment to enhancing security and recognition systems, making a lasting impact in his field.