Yokohama, Japan

Shigeki Hamashima

This inventor holds 5 USPTO granted patents. Top assignee: Fujitsu Corporation. Active years: 1991-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeki Hamashima. Retrieved from https://idiyas.com/inventor/shigeki-hamashima

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 4.3

ph-index = 4

Forward Citations = 30(Granted Patents)


Location History:

  • Yokohama, JP (1991 - 1992)
  • Kawasaki, JP (1994)

Company Filing History:


Years Active: 1991-1994

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5 patents (USPTO):Explore Patents

Title: Shigeki Hamashima: Innovator in Infrared Ray Detection Technology

Introduction

Shigeki Hamashima is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of infrared ray detection technology, holding a total of 5 patents. His innovative work has advanced the capabilities of infrared detection systems, making them more efficient and reliable.

Latest Patents

One of his latest patents is an "Infrared ray detecting sensor with getter partition." This invention features an infrared ray detecting element located in the cool chamber of a Dewar structure, which comprises inner and outer cylindrical members. The chamber is evacuated to a vacuum level, and a getter is arranged within it to maintain this vacuum. A partition is strategically placed in the chamber to form a restricted passage, allowing gas communication between the getter and the infrared ray detecting element while obstructing stray rays generated by the getter. This design ensures that stray rays are reflected multiple times within the restricted passage, effectively dampening their impact. The partition is also roughened and colored black to enhance its functionality.

Another notable patent is the "Infrared rays detecting apparatus with integral temperature control." This cooling type infrared rays detecting apparatus addresses fluctuations in infrared image quality caused by temperature variations. It includes a dummy element mounted adjacent to the infrared rays detecting device, which has a similar structure and material composition. The temperature variation of the dummy element is detected through changes in its resistance, allowing for compensation in the output of the infrared rays detecting device. This innovation ensures high-quality infrared images by mitigating temperature-induced fluctuations.

Career Highlights

Shigeki Hamashima is currently employed at Fujitsu Corporation, where he continues to develop cutting-edge technologies in infrared detection. His work has not only contributed to the advancement of his company but has also had a broader impact on the industry.

Collaborations

Throughout his career, Hamashima has collaborated with notable colleagues, including Koji Hirota and Yukihiro Yoshida. These partnerships have fostered a creative environment that has led to the development of innovative solutions in their field.

Conclusion

Shigeki Hamashima's contributions to infrared ray detection technology exemplify the spirit of innovation. His patents reflect a deep understanding of the challenges in this field and a commitment to enhancing the quality and reliability of infrared detection systems. His work continues to influence

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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