Company Filing History:

15 out of 39,230

Fujitsu Corporation

Fujitsu Microelectronics Limited

patents

4. 1 out of 1,674

Fujitsu Semiconductor Limited

patents

Years Active: 1996-2021

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22 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10917095 - Level shifting circuit and integrated circuit (2021-02-09),

2. 10554173 - Voltage controlled oscillator and PLL circuit (2020-02-04),

3. 10348316 - Frequency division correction circuit, reception circuit, and integrated circuit (2019-07-09),

4. 9172385 - Timing adjustment circuit and semiconductor integrated circuit device (2015-10-27),

5. 9083361 - ADPLL (2015-07-14),

6. 8981974 - Time-to-digital converter and control method (2015-03-17),

7. 8854102 - Clock generating circuit (2014-10-07),

8. 8736327 - Time-to-digital converter (2014-05-27),

9. 8638147 - Clock generator and system including the same (2014-01-28),

10. 8384451 - PLL circuit, method for operating PLL circuit and system (2013-02-26),

11. 7750741 - PLL circuit and semiconductor device (2010-07-06),

12. 7684780 - Semiconductor device, radio terminal device, and radio communication equipment (2010-03-23),

13. 7511566 - Semiconductor circuit with positive temperature dependence resistor (2009-03-31),

14. 6999016 - D/A converter and semiconductor device (2006-02-14),

15. 6819273 - Digital-analog-conversion circuit having function of automatic offset adjustment (2004-11-16),

Title: Innovations of Atsushi Matsuda: A Journey Through His Patents

Introduction

Atsushi Matsuda, an accomplished inventor based in Akishima, Japan, has made significant contributions to the field of electronics through his innovative designs. With an impressive portfolio of 22 patents, Matsuda has established himself as a prominent figure in the tech industry, particularly for his work on advanced circuit design.

Latest Patents

Among his most notable patents are the level shifting circuit and integrated circuit. This innovative level shifting circuit comprises a first inverter, a second inverter, and a third inverter arranged in a cascade. The first inverter operates on a first power supply voltage, while the third inverter functions with a second power supply. The second inverter features two p-type transistors and a n-type transistor, facilitating effective voltage level shifting for various applications.

Another significant patent is his voltage-controlled oscillator and PLL circuit. In this design, a first tuning circuit is responsible for adjusting the oscillation frequency by modifying the capacitance values of variable capacitive elements that are connected in parallel to an inductor. A second tuning circuit enhances this adjustment by switching capacitive elements in and out of connection with the inductor, all orchestrated by precise control signals.

Career Highlights

Matsuda has held key positions at several prestigious companies, including Fujitsu Corporation and Socionext Inc. His time at these organizations has allowed him to refine his expertise in circuit design and innovation, contributing to numerous projects that have advanced technology in meaningful ways.

Collaborations

Collaboration is vital in the innovation landscape, and Matsuda has worked alongside notable colleagues such as Tachio Yuasa and Kunihiko Gotoh. Their combined expertise and innovative ideas have undoubtedly enriched the projects they have undertaken together, leading to groundbreaking developments in circuitry.

Conclusion

Atsushi Matsuda continues to be a vital contributor to the field of electronics, with 22 patents showcasing his inventiveness and technical prowess. His work on level shifting circuits and oscillators demonstrates his ability to address complex challenges in the industry, solidifying his legacy as an influential inventor. As technology continues to evolve, Matsuda's innovations are sure to have a lasting impact.

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Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.