Company Filing History:
Years Active: 1990
Title: Hiromi Ishikawa: Innovator in Noncontacting IC Card Technology
Introduction
Hiromi Ishikawa is a notable inventor based in Morioka, Japan. He has made significant contributions to the field of integrated circuit technology, particularly in the development of noncontacting IC cards. His innovative approach has led to advancements that enhance the functionality and efficiency of electronic payment systems.
Latest Patents
Ishikawa holds a patent for a noncontacting IC card supplied with power from an outside source. This IC card, which can be utilized as a cash card, features a RAM, a control circuit for managing access to the RAM, and a power supply circuit that receives energy from an external source. The design includes a first voltage detector that generates a starting output when the supply voltage exceeds a predetermined first reference voltage. Additionally, a second voltage detector produces a control signal when the supply voltage surpasses a higher predetermined second reference voltage. An AND gate is incorporated to generate a RAM control signal, enabling the RAM to operate when both the starting signal and control signal are present.
Career Highlights
Hiromi Ishikawa is currently employed at Citizen Watch Company, Ltd., where he continues to innovate and develop new technologies. His work has been instrumental in advancing the capabilities of electronic devices, particularly in the realm of cashless transactions.
Collaborations
Ishikawa has collaborated with several talented individuals, including Yoshiaki Kato and Harumi Yuyama, who contribute to the innovative environment at Citizen Watch Company, Ltd. Their combined expertise fosters a culture of creativity and technological advancement.
Conclusion
Hiromi Ishikawa's contributions to the field of noncontacting IC card technology exemplify the spirit of innovation. His patent and ongoing work at Citizen Watch Company, Ltd. highlight his commitment to enhancing electronic payment systems. His achievements serve as an inspiration for future inventors in the technology sector.