Company Filing History:

39 out of 13,651

Murata Manufacturing Co., Ltd.

patents

1 out of 132

Murata Mfg. Co., Ltd.

patents

1 out of 1,112

Hitachi Maxell, Limited

patents

Years Active: 1979-2012

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41 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8284010 - Inductor and DC-DC converter (2012-10-09),

2. 7365603 - FET amplifier, pulse modulation module, and radar device (2008-04-29),

3. 6931246 - Line coupling structure, mixer, and receiving/transmitting apparatus comprised of suspended line and dielectric waveguide (2005-08-16),

4. 6867660 - Line transition device between dielectric waveguide and waveguide, and oscillator, and transmitter using the same (2005-03-15),

5. 6788918 - Transmission line assembly, integrated circuit, and transmitter-receiver apparatus comprising a dielectric waveguide protuding for a dielectric plate (2004-09-07),

6. 6717492 - Planar dielectric integrated circuit with line conversion conductor patterns (2004-04-06),

7. 6642882 - Mixer, radar module, and communication apparatus incorporating the same (2003-11-04),

8. 6614332 - Transmission line, integrated circuit, and transmitter receiver (2003-09-02),

9. 6593874 - Radar for detecting the distance to a target (2003-07-15),

10. 6535072 - Voltage controlled oscillator, voltage controlled oscillator device and radar device (2003-03-18),

11. 6512421 - Gunn diode oscillator with NRD guide (2003-01-28),

12. 6489855 - Line transition device between dielectric waveguide and waveguide, and oscillator, and transmitter using the same (2002-12-03),

13. 6466104 - High-frequency circuit module, filter, duplexer, and communication device (2002-10-15),

14. 6445255 - Planar dielectric integrated circuit (2002-09-03),

15. 6369676 - High-frequency module (2002-04-09),

Title: Sadao Yamashita: Innovator in Inductor and Amplifier Technologies

Introduction

Sadao Yamashita, based in Kyoto, Japan, is a prominent inventor with an impressive portfolio of 41 patents. His contributions to the fields of electronic components and signal amplification have significantly impacted modern technology.

Latest Patents

Among his latest innovations are two noteworthy patents: an inductor and a DC-DC converter, and an FET amplifier along with a pulse modulation module for radar devices. The inductor design features a coil electrode section with both a first and second spiral electrode wound in the same direction and plane, interconnected by a connection electrode. This innovative design, sandwiched between magnetic layers, leads to a low-profile inductor, essential for developing compact DC-DC converters with a streamlined two-layer structure.

In regards to the FET amplifier, it employs a high-frequency signal input and controlling mechanisms based on gate bias signals. The design includes an inverting amplifier and a voltage stabilizing circuit, yielding efficient gate bias voltage to pulse modulate signals. This functionality is pivotal for radar applications, showcasing Yamashita's ingenuity in optimizing high-frequency electronics.

Career Highlights

Sadao Yamashita's career includes significant tenures at reputable firms such as Murata Manufacturing Co., Ltd. and Murata Mfg. Co., Ltd. His work at these organizations has been instrumental in advancing components necessary for modern electronic devices.

Collaborations

Throughout his career, Yamashita has collaborated with distinguished colleagues like Yohei Ishikawa and Koichi Sakamoto. These partnerships have fostered the exchange of innovative ideas, further enhancing the quality and impact of their research and developments.

Conclusion

Sadao Yamashita's dedication to innovation in the fields of inductors, amplifiers, and electronic circuitry has positioned him as a key figure in technology advancement. His extensive patent portfolio and collaborative spirit exemplify the essence of innovation, inspiring future inventors in the electronics sector.

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6 patents (CIPO):

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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.