Company Filing History:
2 out of 52,751 
1 out of 2,916 
Years Active: 1989-1994
Title: Leiichi Yanagisawa: Innovator in Semiconductor Technology
Introduction
Leiichi Yanagisawa is a notable inventor based in Kawasaki, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 3 patents. His work focuses on improving the efficiency and functionality of integrated circuits.
Latest Patents
Yanagisawa's latest patents include a semiconductor integrated circuit featuring a voltage stepdown mechanism. This innovation allows the external power supply voltage applied to an external power supply terminal to be managed effectively. The internal stepdown circuit operates when the external voltage exceeds a predetermined value, stepping down the voltage for internal use. Conversely, if the external voltage is below the threshold, a switch circuit activates to supply the external voltage directly to the internal circuit.
Career Highlights
Throughout his career, Yanagisawa has worked with prominent companies such as Toshiba Corporation and Tokyo Shibaura Electric Co., Ltd. His experience in these organizations has contributed to his expertise in semiconductor technology and circuit design.
Collaborations
Yanagisawa has collaborated with notable colleagues, including Shigeyuki Hayakawa and Isao Baba. These partnerships have fostered innovation and development in their respective fields.
Conclusion
Leiichi Yanagisawa's contributions to semiconductor technology through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence advancements in integrated circuit design and functionality.