Company Filing History:

31 out of 52,711

Kabushiki Kaisha Toshiba

Shibaura Institute of Technology

patents

Years Active: 1989-2019

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34 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10373677 - Semiconductor device to reduce energy consumed to write data (2019-08-06),

2. 10373663 - Non-volatile memory circuit (2019-08-06),

3. 8026537 - Semiconductor integrated circuit having an oblique global signal wiring and semiconductor integrated circuit wiring method (2011-09-27),

4. 7956678 - Power off controlling circuit and power-off controlling method (2011-06-07),

5. 7109771 - Semiconductor integrated circuit with reduced leakage current (2006-09-19),

6. 7088161 - Semiconductor integrated circuit with reduced leakage current (2006-08-08),

7. 7062725 - Computer aided design system and computer-readable medium storing a program for designing clock gated logic circuits and gated clock circuit (2006-06-13),

8. 6861882 - Semiconductor integrated circuit with reduced leakage current (2005-03-01),

9. 6813750 - Logic circuit design equipment and method for designing logic circuit for reducing leakage current (2004-11-02),

10. 6750680 - Semiconductor integrated circuit, logic operation circuit, and flip flop (2004-06-15),

11. 6683336 - SEMICONDUCTOR INTEGRATED CIRCUIT, SUPPLY METHOD FOR SUPPLYING MULTIPLE SUPPLY VOLTAGES IN SEMICONDUCTOR INTEGRATED CIRCUIT, AND RECORD MEDIUM FOR STORING PROGRAM OF SUPPLY METHOD FOR SUPPLYING MULTIPLE SUPPLY VOLTAGES IN SEMICONDUCTOR INTEGRATED CIRCUIT (2004-01-27),

12. 6668363 - Clock supplying circuit and method having enable buffer cells with first and second input terminals (2003-12-23),

13. 6586982 - Semiconductor circuit having a combination circuit being switched between an active and inactive state (2003-07-01),

14. 6557143 - Computer aided design system and computer-readable medium storing a program for designing clock gated logic circuits and gated clock circuit (2003-04-29),

15. 6535982 - Semiconductor integrated circuit employing power management device and power management method for the semiconductor integrated circuit (2003-03-18),

Title: **The Innovative Legacy of Kimiyoshi Usami**

Introduction

Kimiyoshi Usami, based in Kanagawa-ken, Japan, is a prolific inventor with a remarkable portfolio of 34 patents. His contributions in the field of semiconductor technology and non-volatile memory circuits have had significant implications in modern electronics.

Latest Patents

Usami’s latest inventions showcase a commitment to enhancing efficiency and performance in non-volatile memory circuits. His first notable patent is related to a **non-volatile memory circuit** that minimizes size and power consumption while ensuring stable write capabilities. This innovative technique involves a slave latch incorporated in a non-volatile dynamic flip-flop (NVDFF) and utilizes magnetoresistive elements to perform data store and restore operations effectively before and after power interruptions.

Another important invention is his patent for a **semiconductor device** aimed at reducing the energy required to write data to a non-volatile storing section. This design incorporates a write control circuit that compares data stored in magneto-tunnel junction (MTJ) elements with that held in the slave latch, allowing efficient control of the write process. If the data matches, the system prevents unnecessary writing, thereby conserving energy.

Career Highlights

Throughout his career, Kimiyoshi Usami has worked with leading technology companies such as Toshiba Corporation and Sony Corporation. His contributions at these renowned firms have paved the way for advancements in semiconductor technology and memory storage solutions.

Collaborations

In his journey as an inventor, Usami has collaborated with notable colleagues including Masahiro Kanazawa and Naoyuki Kawabe. These partnerships have inspired collaborative inventions that leverage shared expertise and innovation.

Conclusion

Kimiyoshi Usami's impressive collection of patents and his impactful work in semiconductor technologies exemplify his status as an influential inventor. His innovative techniques in non-volatile memory circuits not only contribute to the technological landscape but also enhance efficiency in data storage applications, marking a significant step forward in the evolution of electronics.

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1 patent (EPO):

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