Company Filing History:
Years Active: 1988-1998
Title: **Innovative Contributions of Hitoshi Kokuryo**
Introduction
Hitoshi Kokuryo, an accomplished inventor based in Sagamihara, Japan, has made significant strides in the field of integrated circuit technology. With a total of five patents to his name, Kokuryo has contributed innovative solutions that enhance the functionality and security of IC cards.
Latest Patents
Kokuryo's most notable patents include the following:
1. **IC Card and Issuing Apparatus Allowing Multiple Applications**
This innovation features a card embedded with an IC chip that contains a CPU and memory. When inserted into a terminal device, the card connects to a host computer, allowing the data within its memory to be processed. The memory is uniquely designed with multiple zones, and an access controller regulates access conditions for each zone, which can be tailored by the card issuer.
2. **Data Processing Device with High Security of Stored Programs**
In this invention, an IC card comprises a CPU, PROM for storing programs, and RAM for saving the result of arithmetic operations. The PROM includes a table with specific program names. The RAM features execution counters that track the number of times each program is run. If a program is deemed specific, the execution counter will increase. Once the count exceeds a predetermined threshold, further running of that program is restricted, thus enhancing security.
Career Highlights
Kokuryo is currently associated with Kabushiki Kaisha Toshiba, one of the leading companies in technology and electronics. His work in the development of advanced IC card technologies has positioned him as a key innovator within the organization.
Collaborations
During his career, Kokuryo has collaborated with notable colleagues, including Masuo Tamada and Shinsuke Tamura. Together, they have explored various aspects of IC technology, driving advancements in secure data processing and card issuing systems.
Conclusion
Hitoshi Kokuryo's innovative contributions to IC card technology illustrate his dedication to enhancing security and functionality in electronic devices. With a solid portfolio of patents and a collaborative spirit, Kokuryo continues to inspire future developments in the field. His work not only benefits his company but also advances the industry standards for integrated circuit applications.