Company Filing History:

44 out of 39,228

Fujitsu Corporation

where one patent can have more than one assignee

Years Active: 1979-1998

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44 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5747837 - Semiconductor device having input protective function (1998-05-05),

2. 5309040 - Voltage reducing circuit (1994-05-03),

3. 5051959 - Complementary semiconductor memory device including cell access (1991-09-24),

4. 4985868 - Dynamic random access memory having improved refresh timing (1991-01-15),

5. 4970693 - Semiconductor memory device with internal control signal based upon (1990-11-13),

6. 4905201 - Semiconductor memory device capable of selective operation of memory (1990-02-27),

7. 4903111 - Integrated circuit device (1990-02-20),

8. 4862415 - Complementary semiconductor device reducing latch-up phenomenon (1989-08-29),

9. 4754313 - Semiconductor memory device having stacked-capacitor type memory cells (1988-06-28),

10. 4752914 - Semiconductor integrated circuit with redundant circuit replacement (1988-06-21),

11. 4744061 - Dynamic semiconductor memory device having a simultaneous test function (1988-05-10),

12. 4716549 - Semiconductor memory device having a circuit for compensating for (1987-12-29),

13. 4707811 - Semiconductor memory device having extended period for outputting data (1987-11-17),

14. 4707806 - Semiconductor integrated circuit device having fuse-type information (1987-11-17),

15. 4660174 - Semiconductor memory device having divided regular circuits (1987-04-21),

Title: Innovations of Tomio Nakano in Semiconductor Technology

Introduction

Tomio Nakano, a prominent inventor based in Kawasaki, Japan, has made significant contributions to the field of semiconductor technology. With an impressive portfolio of 44 patents, Nakano's work has influenced various aspects of semiconductor devices, emphasizing efficiency and protection in electronic circuits.

Latest Patents

Among his latest innovations, Nakano has developed groundbreaking patents such as the "Semiconductor device having input protective function." This inventive semiconductor device aims to expand the range of recommended conditions for input voltage. It features a semiconductor region with a first conducting type, alongside first and second diffusion regions of a second conducting type. The design incorporates a transistor that utilizes these components to enhance the input protection functionality.

Another notable patent is the "Voltage reducing circuit," which addresses the challenge of managing external power source voltages within semiconductor integrated circuits. This patent outlines a solution where a voltage dropping unit reduces the external voltage, thus providing a stable internal power source voltage. This design employs multiple voltage dropping units to effectively stabilize voltage fluctuations, especially during high current operations.

Career Highlights

Tomio Nakano has a distinguished career, having worked with leading companies in the semiconductor industry, including Fujitsu Corporation and Fujitsu VLSI Limited. His tenure at these organizations has further solidified his reputation as a pivotal figure in semiconductor innovation.

Collaborations

Throughout his career, Nakano has collaborated with noteworthy colleagues, including Yoshihiro Takemae and Masao Nakano. These partnerships have played a crucial role in advancing semiconductor technologies and fostering innovative solutions in this dynamic field.

Conclusion

Tomio Nakano's contributions to semiconductor technology through his numerous patents exemplify his commitment to innovation. His advancements in input protection mechanisms and voltage management circuits are vital for enhancing the functionality and reliability of electronic devices. As he continues to push the boundaries of semiconductor engineering, Nakano remains an inspiring figure for future inventors in this transformative industry.

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