Toukai, Japan

Toshiharu Shirakura

This inventor holds 14 USPTO granted patents. Top assignees: Hitachi, Ltd., Hitachi Engineering Co., Ltd.. Active years: 1981-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshiharu Shirakura. Retrieved from https://idiyas.com/inventor/toshiharu-shirakura

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


% Patents Active = 100.0

Average Co-Inventor Count = 5.4

ph-index = 7

Forward Citations = 115(Granted Patents)


Location History:

  • Tokaimura, JP (1981)
  • Naka, JP (1982)
  • Tokai, JP (1982 - 1984)
  • Tohkai, JP (1985)
  • Ibaraki, JP (1984 - 1988)
  • Toka, JP (1991)
  • Toukai, JP (1985 - 1993)

Company Filing History:


Years Active: 1981-1993

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14 patents (USPTO):Explore Patents

Title: Toshiharu Shirakura: Innovator in Laser Technology

Introduction

Toshiharu Shirakura is a prominent inventor based in Toukai, Japan. He has made significant contributions to the field of laser technology, holding a total of 14 patents. His work focuses on developing advanced laser oscillators and related apparatuses that enhance manufacturing processes.

Latest Patents

Shirakura's latest patents include innovations such as a laser oscillator and a laser resonator. The laser oscillator is designed for ultrafine manufacturing applications, particularly in semiconductor production. It features constant directivity to avoid blurred images and ensure stable mask production. Additionally, the laser oscillator incorporates an optical system that prevents the laser medium from re-entering unnecessary natural emitting light, thereby maintaining high directivity. Another notable invention is the metal vapor laser apparatus, which includes a discharge tube with electrodes and a cooling jacket to manage heat effectively. This design enhances the efficiency and performance of the laser system.

Career Highlights

Throughout his career, Shirakura has worked with notable companies, including Hitachi, Ltd. and Hitachi Engineering Co., Ltd. His experience in these organizations has contributed to his expertise in laser technology and innovation.

Collaborations

Shirakura has collaborated with esteemed colleagues such as Hiroyuki Sugawara and Kouji Kuwabara. These partnerships have fostered a collaborative environment that promotes innovation and the development of cutting-edge technologies.

Conclusion

Toshiharu Shirakura's contributions to laser technology have significantly impacted the manufacturing industry. His innovative patents and collaborations highlight his dedication to advancing this 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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