Company Filing History:
2 out of 42,508 
1 out of 149 
Years Active: 1984-1985
Title: Takashi Sakamoto: Innovator in Semiconductor Technology
Introduction
Takashi Sakamoto is a notable inventor based in Tachikawa, Japan. He has made significant contributions to the field of semiconductor technology, holding 2 patents that showcase his innovative approach to integrated circuit design.
Latest Patents
One of his latest patents is for a semiconductor integrated circuit device that includes a protective resistor. This invention addresses the issue of abnormal surge voltages, such as those caused by frictional static electricity, which can damage the gate insulating film of MOS integrated circuits (MOSIC). By connecting a resistor between the gate of the output MOS transistor and its drive circuit, Sakamoto's design prevents breakdown of the gate insulating film while maintaining the output characteristics of the MOSIC.
Another significant patent is for a precharge mechanism for split array ratioless read-only memory (ROM). This invention involves a semiconductor ROM constructed from two ratioless read-only memories, each containing multiple MISFETs connected in series. The logic circuit combines the output signals from both memories, ensuring that the second memory enters a precharge state when the first memory's output is determined. This design effectively mitigates issues caused by undesirable coupling capacitors between the output terminals of the two memories.
Career Highlights
Throughout his career, Takashi Sakamoto has worked with prominent companies such as Hitachi, Ltd. and Hitachi Microcomputer Engineering, Ltd. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking advancements in semiconductor technology.
Collaborations
Sakamoto has collaborated with notable colleagues, including Hisahiro Moriuchi and Yoshibumi Ando. Their combined expertise has fostered an environment of innovation and creativity in their projects.
Conclusion
Takashi Sakamoto'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 integrated circuits and memory devices, showcasing the importance of innovation in technology.