Nara, Japan

Shigeru Shirai

This inventor holds 13 USPTO granted patents. Top assignees: Matsushita Electric Industrial Co., Ltd., Panasonic Corporation. Active years: 1979-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeru Shirai. Retrieved from https://idiyas.com/inventor/shigeru-shirai-uv18hd95

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

Calculating rank

% Patents Active = 61.5

Average Co-Inventor Count = 4.7

ph-index = 8

Forward Citations = 233(Granted Patents)


Location History:

  • Tsuge-mura, JP (1999)
  • Yamabe-gun, JP (2008 - 2010)
  • Osaka, JP (1979 - 2011)
  • Nara, JP (1988 - 2014)

Company Filing History:


Years Active: 1979-2014

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13 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Shigeru Shirai

Introduction

Shigeru Shirai, a distinguished inventor based in Nara, Japan, has made significant contributions to the field of technology with an impressive portfolio of 13 patents. His innovative designs reflect a deep commitment to improving everyday products, making life more comfortable and convenient for users.

Latest Patents

One of his notable recent inventions is a toilet seat apparatus that features a sophisticated linear heater. This heater is constructed from an enamel wire, consisting of both a heating wire and an enamel layer. The heating wire utilizes a copper alloy containing silver, ensuring efficient heating. The enamel layer, made from materials such as polyester imide (PEI), polyimide (PI), or polyamide imide (PAI), is carefully coated with an insulating layer of fluororesin, including substances like perfluoroalkoxy mixture (PFA). This innovative heater is strategically bonded to the lower surface of the upper toilet seat casing, effectively sandwiched between metal foils, demonstrating Shirai's ingenuity in enhancing user comfort.

Career Highlights

Throughout his career, Shigeru Shirai has been associated with esteemed companies, including Matsushita Electric Industrial Co., Ltd. and Panasonic Corporation. His work in these organizations has positioned him as a prominent figure in the realm of technological advancements.

Collaborations

Shirai has collaborated with notable colleagues such as Kazushige Nakamura and Mitsuyuki Furubayashi. These partnerships have fueled innovation and contributed to the development of groundbreaking technologies, further establishing Shirai's reputation as a skilled inventor.

Conclusion

Shigeru Shirai's dedication to innovation is evident through his numerous patents and collaborative efforts. His latest inventions, particularly the advanced toilet seat apparatus, showcase his ability to merge functionality with modern technology. As an influential figure in the inventive landscape, Shirai continues to inspire future generations of inventors.

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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