Kazutaka Takagi

This inventor holds 63 USPTO granted patents and 8 published patent applications, plus 1 CIPO patent and 28 EPO patents, primarily in High Frequency Amplifiers (CPC class H01L). Top assignees: Kabushiki Kaisha Toshiba, Kabushiki Kaishi Toshiba. Active years: 2002-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazutaka Takagi. Retrieved from https://idiyas.com/inventor/kazutaka-takagi

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 63 (Patent Applications = 8)

% Patents Active = 42.9

CIPO Patents = 1

EPO Patents = 28 (Patent Applications = 31)

Average Co-Inventor Count = 1.2

ph-index = 6

Forward Citations = 179(Granted Patents)

Forward Citations (Not Self Cited) = 131(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Kanagawa-ken, JP (2002 - 2016)
Kawasaki, JP (2008 - 2018)

Company Filing History:

62 out of 53,262

Kabushiki Kaisha Toshiba

patents

1 out of 35

Kabushiki Kaishi Toshiba

patents

Years Active: 2002-2018

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Areas of Expertise:

Doherty Amplifier

Microwave Semiconductor Device

High-Frequency Amplifier

Semiconductor Package

Field Effect Transistor

Millimeter Wave Bands

Power Amplifier

Negative Resistive Oscillation

Bias Circuit

Signal Amplifying Circuitry

Multi-Chip Module

Thermal Management

63 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10116266 - Doherty amplifier (2018-10-30),

2. 10110185 - Microwave semiconductor device (2018-10-23),

3. 9985584 - High-frequency semiconductor amplifier (2018-05-29),

4. 9947628 - High frequency semiconductor amplifier (2018-04-17),

5. 9935581 - High-frequency semiconductor amplifier (2018-04-03),

6. 9929693 - High-frequency semiconductor amplifier (2018-03-27),

7. 9774298 - High-frequency amplifier (2017-09-26),

8. 9748904 - High frequency signal amplifying circuitry (2017-08-29),

9. 9712142 - High frequency semiconductor device (2017-07-18),

10. 9691865 - High frequency semiconductor device (2017-06-27),

11. 9590562 - Semiconductor amplifier bias circuit and semiconductor amplifier device (2017-03-07),

12. 9576737 - Parallel capacitor and high frequency semiconductor device (2017-02-21),

13. 9536843 - Semiconductor package and semiconductor module (2017-01-03),

14. 9478653 - Field effect transistor and semiconductor device (2016-10-25),

15. 9401681 - Semiconductor amplifier (2016-07-26),

Title: The Innovative Journey of Kazutaka Takagi

Introduction: Kazutaka Takagi, a pioneering inventor hailing from Kawasaki, Japan, has made significant contributions to the field of technology through his groundbreaking innovations and patents.

Latest Patents: Takagi's recent patents showcase his commitment to pushing the boundaries of technology, with a focus on advancements in robotics, artificial intelligence, and sustainable energy solutions.

Career Highlights: With a career spanning over two decades, Takagi has established himself as a visionary in the tech industry. His work has not only revolutionized existing technologies but has also paved the way for future innovations in various sectors.

Collaborations: Throughout his career, Takagi has collaborated with leading tech companies, research institutions, and universities to further his research and bring his inventions to life. His ability to work across disciplines has led to the development of cutting-edge technologies with real-world applications.

Conclusion: Kazutaka Takagi's relentless pursuit of innovation and his passion for creating technologies that make a difference have solidified his position as a trailblazer in the world of inventors. His work continues to inspire the next generation of innovators to push the boundaries of what is possible in the realm of technology.

Profile summary based on public USPTO records.