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For the Inventor, By the Inventor

Moriyama, Japan

Yasuhiro Tsubota

This inventor holds 16 USPTO granted patents and 7 EPO patents, primarily in Solar Power Systems. Top assignees: Omron Corporation, Tokyo Institute of Technology. Active years: 2002-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasuhiro Tsubota. Retrieved from https://idiyas.com/inventor/yasuhiro-tsubota

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

Calculating rank
USPTO Granted Patents = 16

% Patents Active = 68.8

 

Average Co-Inventor Count = 5.2

ph-index = 4

Forward Citations = 53(Granted Patents)


Location History:

  • Okayama, JP (2007)
  • Shiga, JP (2013 - 2016)
  • Kyoto, JP (2002 - 2021)
  • Moriyama, JP (2009 - 2021)

Company Filing History:

goldMedal16 out of 4,215 
 
Omron Corporation
 patents
silverMedal3 out of 592 
 
Tokyo Institute of Technology
 patents
where one patent can have more than one assignee

Years Active: 2002-2021

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Areas of Expertise:
Solar Power System
DC/DC Converter
Power Conditioner
Hybrid Power Supply
Battery
Inverter Apparatus
Power Storage
Voltage Transformer
Distributed Power System
Power Conversion Apparatus
Isolated Operation Detection
Snubber Circuit
16 patents (USPTO):Explore Patents
1. 11075586 - Solar power system and converter (2021-07-27),
2. 10965211 - Conversion device and hybrid power supply system (2021-03-30),
3. 10461645 - Power supply system, DC/DC converter, and power conditioner for suppressing performance degradation in solar cells (2019-10-29),
4. 10340845 - Power storage system, voltage transformer and power storage power conditioner (2019-07-02),
5. 9966866 - Distributed power system, DC-DC converter, and power conditioner (2018-05-08),
6. D810021 - Battery (2018-02-13),
7. 9425679 - Inverter apparatus and solar power generation system (2016-08-23),
8. 8902620 - Power conditioner (2014-12-02),
9. 8570781 - Power conditioner (2013-10-29),
10. 8184462 - Power conversion apparatus, power conditioner, and power generation system (2012-05-22),
11. 8184461 - Power conditioner and solar photovoltaic power generation system (2012-05-22),
12. 7630794 - Isolated operation detecting method, control apparatus for detecting isolated operation for distributed power supply (2009-12-08),
13. 7176673 - Direct current detection circuit (2007-02-13),
14. 6856047 - Power source apparatus (2005-02-15),
15. 6507502 - Snubber circuit and power transformer using the same (2003-01-14),

Title: Yasuhiro Tsubota: Innovator in Solar Power Technology

Introduction

Yasuhiro Tsubota is a prominent inventor based in Moriyama, Japan. He has made significant contributions to the field of solar power technology, holding a total of 16 patents. His work focuses on enhancing the efficiency and performance of solar energy systems.

Latest Patents

Among his latest innovations is a solar power system and converter. This converter is designed to connect a solar cell to an inverter, which converts direct-current power from the solar cell into alternating current. The unique feature of this converter is its ability to increase the potential-to-ground at the negative terminal of the solar cell, surpassing that of the inverter during power output. Another notable patent is a conversion device and hybrid power supply system. This technology addresses performance degradation in solar batteries caused by potential-induced degradation (PID). The conversion device includes a DC/DC converter and a control part, which optimizes the output power from the solar battery.

Career Highlights

Yasuhiro Tsubota has worked with notable organizations such as Omron Corporation and the Tokyo Institute of Technology. His experience in these institutions has allowed him to develop and refine his innovative ideas in solar technology.

Collaborations

He has collaborated with esteemed colleagues, including Masao Mabuchi and Takao Mizokami, contributing to advancements in the field.

Conclusion

Yasuhiro Tsubota's work in solar power technology exemplifies his commitment to innovation and sustainability. His patents reflect a deep understanding of the challenges in solar energy systems and provide solutions that enhance their efficiency.

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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