Location History:
- Hyogo, JP (1989 - 1994)
- Itami, JP (1988 - 1996)
- Kanagawa, JP (1996)
Company Filing History:

Years Active: 1988-1996
Title: Ichiro Tomioka: Innovator in Semiconductor Technology
Introduction
Ichiro Tomioka is a prominent inventor based in Hyogo, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 14 patents. His work focuses on enhancing the efficiency and functionality of electronic circuits.
Latest Patents
One of his latest patents is a buffer circuit for regulating driving current. This innovative buffer circuit features a driving current adjusting function that automatically sets the driving current characteristics to the most suitable value based on the system requirements. The design includes a load detecting circuit that identifies the phase difference between the input and output signals, generating a control signal to optimize the driving current. This ensures that the buffer circuit can adapt to varying delay times, increasing or decreasing the driving current as needed.
Another notable patent is the multi-voltage-level master-slice integrated circuit. This device incorporates a substrate segmented into multiple sections during the master processing step. In the subsequent slice processing step, slice cells are formed using different substrate segments, allowing for the application of different supply voltages to input/output circuits on various segments. This innovation enhances the versatility and performance of integrated circuits.
Career Highlights
Ichiro Tomioka has worked with several esteemed companies, including Mitsubishi Denki and Mitsubishi Electric Semiconductor Software. His experience in these organizations has allowed him to develop and refine his innovative ideas in semiconductor technology.
Collaborations
Throughout his career, Tomioka has collaborated with notable colleagues such as Toshiaki Hanibuchi and Kazuhiro Sakashita. These partnerships have contributed to the advancement of his projects and the successful implementation of his inventions.
Conclusion
Ichiro Tomioka's contributions to semiconductor technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence the development of efficient electronic circuits and integrated systems.