Hitachinaka, Japan

Shigeyuki Yoshihara

This inventor holds 24 USPTO granted patents, plus 2 CIPO patents and 5 EPO patents, primarily in Electric Vehicle Technology. Top assignees: Hitachi, Ltd., Shin-Kobe Electric Machinery Co., Ltd., Hitachi Construction Machinery Co., Ltd.. Active years: 1995-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeyuki Yoshihara. Retrieved from https://idiyas.com/inventor/shigeyuki-yoshihara

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


% Patents Active = 79.2


 

Average Co-Inventor Count = 3.8

ph-index = 11

Forward Citations = 324(Granted Patents)


Location History:

  • Katsuta, JP (1995 - 1997)
  • Hitachinaka, JP (1997 - 2017)
  • Tsuchiura, JP (2017 - 2018)

Company Filing History:


Years Active: 1995-2018

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Areas of Expertise:
Electric Vehicle Control
Battery Control System
Hybrid Construction Machine
Power Conversion Device
Motor Control Apparatus
AC Motor Controller
State Detecting System
Electric Driving Wheel
Catalyzer Control Apparatus
Rotation Sensor Abnormality
Electric Heating Control
24 patents (USPTO):Explore Patents

Title: The Innovative Mind of Shigeyuki Yoshihara

Introduction

Shigeyuki Yoshihara, based in Hitachinaka, Japan, is a prominent inventor with a remarkable portfolio of 24 patents to his name. His contributions to the field of engineering and technology have made significant strides, particularly in the development of hybrid systems for construction machinery.

Latest Patents

Yoshihara's latest inventions demonstrate his commitment to improving efficiency and safety in construction equipment. One of his notable patents is for a Hybrid Construction Machine, designed to enhance temperature control efficiency within electrical storage devices. This innovative machine features an engine, an assisting electricity generation motor that provides power for the engine, and an electrical storage device that facilitates electric power transfer. The design includes several battery cells, a protective housing, a cooling plate for optimal heat exchange, and a projection that reduces heat transfer, ensuring effective performance.

Another significant invention is the Working Machine, specifically a hybrid wheel loader that excels in detecting short-circuited states in synchronous generators. This system utilizes a synchronous generator as both an electric generator and a motor, powered by an electrical storage device. It features a motor current sensor, semiconductor switches, and a control unit that accurately detects short circuits, providing enhanced reliability and safety during operation.

Career Highlights

Throughout his career, Yoshihara has been associated with several reputable companies, including Hitachi, Ltd. and Shin-kobe Electric Machinery Co., Ltd. His experience in these organizations has allowed him to refine his skills and innovate solutions that address various technological challenges in the industry.

Collaborations

Yoshihara has had the opportunity to work alongside talented individuals such as Akihiko Emori and Kazuyoshi Sasazawa. Their collaborative efforts have contributed to the success of his projects, facilitating the development of advanced technologies that benefit the construction and engineering sectors.

Conclusion

Shigeyuki Yoshihara's inventive spirit and dedication to his work have positioned him as a key player in the field of hybrid machinery. With a robust portfolio of patents and a commitment to innovation, he continues to pave the way for future advancements in technology. His contributions not only enhance operational efficiency but also promote safety and sustainability in construction practices.

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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