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For the Inventor, By the Inventor

Tokyo, Japan

Hiromu Takubo

This inventor holds 14 USPTO granted patents and 3 published patent applications, plus 1 CIPO patent. Top assignees: Fuji Electric Co., Ltd., Fuji Electric Device Technology Co., Ltd.. Active years: 1991-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiromu Takubo. Retrieved from https://idiyas.com/inventor/hiromu-takubo

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

USPTO Granted Patents = 14 

% Patents Active = 78.6


Average Co-Inventor Count = 1.7

ph-index = 5

Forward Citations = 100(Granted Patents)


Location History:

  • Kawasaki, JP (2016)
  • Mitaka, JP (1991 - 2017)
  • Tokyo, JP (1991 - 2018)
  • Kanagawa, JP (2018)
  • Machida, JP (2020)
  • Hachioji, JP (2019 - 2024)

Company Filing History:

goldMedal12 out of 4,826 
 
Fuji Electric Co., Ltd.
 patents
silverMedal2 out of 152 
 
Fuji Electric Device Technology Co., Ltd.
 patents

Years Active: 1991-2025

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14 patents (USPTO):Explore Patents
1. 12336094 - Wiring board and power conversion apparatus (2025-06-17),
2. 12334808 - Drive device, drive method, and power conversion device (2025-06-17),
3. 12212224 - Driving apparatus (2025-01-28),
4. 11955791 - Short-circuit detector and power converter (2024-04-09),
5. 10707776 - 3-level power conversion circuit including serially-connected switching element and diode (2020-07-07),
6. 10312727 - Power supply device (2019-06-04),
7. 10123443 - Semiconductor device (2018-11-06),
8. 10003273 - Power conversion device (2018-06-19),
9. 9543928 - Gate driving circuit and method for driving semiconductor device (2017-01-10),
10. 9520807 - Power converter that delays state changes of on/off pulses and control method thereof (2016-12-13),
11. 7719092 - Power semiconductor module (2010-05-18),
12. 7425757 - Semiconductor power module (2008-09-16),
13. 5077651 - Snubber circuit of power converter (1991-12-31),
14. 5055990 - Snubber circuit for power conversion semiconductor elements and assembly (1991-10-08),

Title: Hiromu Takubo: Innovator in Power Conversion Technology

Introduction

Hiromu Takubo is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of power conversion technology, holding a total of 14 patents. His innovative designs and solutions have advanced the capabilities of semiconductor devices.

Latest Patents

Among his latest patents, Takubo has developed a wiring board and a power conversion apparatus. The wiring board features a pair of hard substrates for semiconductor elements connected in parallel, along with a soft substrate that is partially sandwiched between the hard substrates. This design includes electrodes and wiring configurations that enhance the performance of the semiconductor elements. Additionally, his drive device and method focus on suppressing the deterioration of SiC-MOSFETs, utilizing a unique approach to manage gate voltages during operation.

Career Highlights

Throughout his career, Takubo has worked with notable companies such as Fuji Electric Co., Ltd. and Fuji Electric Device Technology Co., Ltd. His experience in these organizations has allowed him to refine his expertise in power conversion technologies and semiconductor applications.

Collaborations

Takubo has collaborated with talented individuals in the industry, including Ryoga Kiguchi and Shinichi Kobayashi. These partnerships have contributed to the development of innovative solutions in the field.

Conclusion

Hiromu Takubo's work in power conversion technology exemplifies the impact of innovation in the semiconductor industry. His patents and collaborations continue to influence advancements in this critical field.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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