Takeji Tokumaru

Title: Takeji Tokumaru: Innovator in Semiconductor Technology

Introduction

Takeji Tokumaru is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 13 patents. His work has been instrumental in advancing the capabilities of integrated circuits and input buffer designs.

Latest Patents

Among his latest patents is the "Input buffer with level detector circuit." This invention features an input buffer circuit that includes first and second inverters connected serially between an input terminal and an output terminal. The circuit is equipped with a level detector that identifies when the input signal is logically unsteady, along with an output level holding circuit that maintains the level of the node where the inverters connect.

Another notable patent is the "Semiconductor integrated circuit fabrication method." This method outlines a comprehensive approach for designing and fabricating semiconductor circuit elements on a substrate. It involves replacing standard cells with symbolic cells, registering them in a library, and creating a circuit diagram. The process culminates in forming semiconductor circuit elements and wiring using a mask pattern derived from stick diagrams.

Career Highlights

Takeji Tokumaru is currently employed at Kabushiki Kaisha Toshiba, a leading company in the technology sector. His work at Toshiba has allowed him to collaborate on various innovative projects that push the boundaries of semiconductor technology.

Collaborations

Some of his notable coworkers include Tsuneaki Kudou and Miyuki Nagata. Their collective expertise has contributed to the successful development of advanced technologies in their field.

Conclusion

Takeji Tokumaru's contributions to semiconductor technology through his patents and work at Toshiba highlight his role as a key innovator in the industry. His inventions continue to influence the design and functionality of modern electronic devices.