Location History:
- Yokohama, JP (1987 - 1990)
- Tokoy, JP (1999)
Company Filing History:
Years Active: 1987-1999
Title: Jun-ichi Tsujimoto: Innovator in CMOS Logic Circuits
Introduction
Jun-ichi Tsujimoto is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of semiconductor technology, particularly in the design of CMOS logic circuits. With a total of 10 patents to his name, Tsujimoto continues to push the boundaries of innovation in his field.
Latest Patents
One of Tsujimoto's latest patents is titled "Logic circuit and method of designing the same." This invention features a CMOS logic circuit that includes a domino gate functioning as a logic gate 1, which operates on a lower supply voltage (VDDL). Another domino gate serves as logic gate 2, operating on a higher supply voltage (VDDH). The output of logic gate 1 feeds into logic gate 2 without the need for a level converter, resulting in reduced power dissipation. The design method ensures that timing requirements are met while maximizing the number of logic gates that can operate on the lower supply voltage.
Another notable patent is the "Charge pump circuit having a boosted output signal." This semiconductor integrated circuit device consists of a first charge pumping circuit with multiple MOS transistors connected in a cascade configuration. The odd-numbered nodes receive clock signals through capacitors, while the even-numbered nodes receive the alternate clock signal. A second charge pumping circuit mirrors the first, ensuring efficient operation and enhanced output.
Career Highlights
Jun-ichi Tsujimoto is currently employed at Kabushiki Kaisha Toshiba, where he applies his expertise in semiconductor design. His work has significantly impacted the efficiency and performance of integrated circuits, making him a valuable asset to the company.
Collaborations
Throughout his career, Tsujimoto has collaborated with notable colleagues, including Masataka Matsui and Junichi Miyamoto. These partnerships have fostered innovation and contributed to the advancement of technology in their field.
Conclusion
Jun-ichi Tsujimoto stands out as a leading inventor in the realm of CMOS logic circuits and semiconductor technology. His innovative patents and contributions to Kabushiki Kaisha Toshiba highlight his commitment to advancing the industry.