Yasuhiro Kurosawa

This inventor holds 7 USPTO granted patents. Top assignees: Kabushiki Kaisha Toshiba, Tokyo Shibaura Denki Kabushiki Kaisha. Active years: 1982-2005.

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

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

Calculating rank

USPTO Granted Patents = 7

% Patents Active = 100.0

Average Co-Inventor Count = 2.2

ph-index = 4

Forward Citations = 42(Granted Patents)

Location History:

Tokyo-to, JP (1998)
Tokyo, JP (1996 - 2002)
Hino, JP (1982 - 2005)

Company Filing History:

6 out of 53,286

Kabushiki Kaisha Toshiba

patents

1 out of 2,916

Tokyo Shibaura Denki Kabushiki Kaisha

patents

Years Active: 1982-2005

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7 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6906903 - Protection relay (2005-06-14),

2. 6498709 - Digital distance relay (2002-12-24),

3. 6459960 - Distance relay equipment (2002-10-01),

4. 6097280 - Fault locator that uses positive-phase-sequence electricity (2000-08-01),

5. 5796630 - Protective relay system provided with difference and addition filters (1998-08-18),

6. 5523675 - Method and an apparatus for detecting a frequency of a power system (1996-06-04),

7. 4344143 - Digital type distance relay system (1982-08-10),

Title: Yasuhiro Kurosawa: Innovator in Power System Protection

Introduction

Yasuhiro Kurosawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of power system protection, holding a total of seven patents. His innovative designs focus on enhancing the reliability and efficiency of electrical systems.

Latest Patents

Among his latest patents is the Protection Relay, which determines the existence of fault points in a power system. This device includes a filter section for inputting sampling data of voltage and current, processing it through a digital filter, and outputting critical voltage and current data. Additionally, the Digital Distance Relay is another notable invention by Kurosawa. This relay assesses whether a fault point is within a specified operational region by measuring impedance to the fault point, utilizing advanced decision-making algorithms based on load current direction.

Career Highlights

Kurosawa has worked with notable companies such as Kabushiki Kaisha Toshiba and Tokyo Shibaura Denki Kabushiki Kaisha. His experience in these organizations has allowed him to refine his expertise in electrical engineering and power systems.

Collaborations

Some of his coworkers include Tetsuo Matsushima and Hidenari Amo. Their collaborative efforts have contributed to the development of innovative solutions in the field.

Conclusion

Yasuhiro Kurosawa's work in power system protection showcases his dedication to innovation and engineering excellence. His patents reflect a commitment to improving electrical safety and efficiency in modern power systems.

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]