Location History:
- Hyogo-ken, JP (1996 - 2002)
- Tokyo, JP (2002 - 2004)
Company Filing History:
9 out of 21,351 
8 out of 177 
3 out of 832,880 Years Active: 1996-2004
Title: Yasuhiro Ishizuka: Innovator in Semiconductor Technology
Introduction
Yasuhiro Ishizuka is a prominent inventor based in Hyogo-ken, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 12 patents. His work focuses on enhancing the efficiency and functionality of semiconductor storage devices.
Latest Patents
Ishizuka's latest patents include a power supply control circuit designed for use in semiconductor storage devices. This innovative circuit comprises a first power supply circuit that connects to all subarrays of the semiconductor storage device, supplying power effectively. Additionally, it features an operation mode determination circuit that generates a first block selection signal based on the applied address information. Another notable patent involves a semiconductor integrated circuit that merges logic and memory, which prevents an increase in abnormal current during power-up. This circuit includes a voltage generation unit that produces multiple internal power supply voltages based on external power supply voltages, ensuring optimal performance.
Career Highlights
Throughout his career, Yasuhiro Ishizuka has worked with esteemed companies such as Mitsubishi Denki Kabushiki Kaisha and Mitsubishi Electric Engineering Company, Limited. His experience in these organizations has allowed him to develop and refine his innovative ideas in semiconductor technology.
Collaborations
Ishizuka has collaborated with notable coworkers, including Katsumi Dosaka and Masaki Kumanoya. Their combined expertise has contributed to the advancement of semiconductor technologies and innovations.
Conclusion
Yasuhiro Ishizuka'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 semiconductor storage solutions.