Saitama, Japan

Yoshirou Hirai

This inventor holds 6 USPTO granted patents and 2 EPO patents. Top assignees: Citizen Holdings Company, Ltd., Citizen Watch Company, Ltd., Hitachi Metals Neomaterial, Ltd.. Active years: 2001-2016.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshirou Hirai. Retrieved from https://idiyas.com/inventor/yoshirou-hirai

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

Calculating rank

% Patents Active = 33.3

 

Average Co-Inventor Count = 4.1

ph-index = 2

Forward Citations = 8(Granted Patents)


Location History:

  • Saitama, JP (2001 - 2012)
  • Sayama, JP (2016)

Company Filing History:


Years Active: 2001-2016

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6 patents (USPTO):Explore Patents

Certainly! Here is the article about inventor Yoshirou Hirai:

Title: Spotlight on Inventor Yoshirou Hirai: Transforming Timepieces and Gas Sensors

Introduction: Yoshirou Hirai, a brilliant inventor hailing from Saitama, Japan, has made significant contributions to the world of innovations with a total of 6 patents under his belt.

Latest Patents:

1. Hairspring material for mechanical timepiece and hairspring using the same - Hirai's patented hairspring material for a mechanical timepiece features a unique alloy composition that enhances the variation in Young's modulus, offering improved performance compared to conventional materials.

2. Heater coil for gas sensor, detecting element for gas sensor, catalytic combustion gas sensor, and manufacturing method of catalytic combustion gas sensor - This patent showcases Hirai's expertise in improving gas sensors' sensitivity, response speed, and impact resistance through innovative design and manufacturing methods.

Career Highlights: Hirai has showcased his inventive prowess while working at renowned companies like Citizen Holdings Company, Ltd., where he has played a pivotal role in driving innovation and technological advancement in the industry.

Collaborations: Hirai has collaborated with esteemed colleagues such as Ikuo Takahashi and Junji Satoh, pooling their expertise to create groundbreaking solutions in the field of mechanical timepieces and gas sensors.

Conclusion: Yoshirou Hirai's inventive spirit and dedication to pushing the boundaries of technology have solidified his position as a pioneering inventor in the realms of timepiece engineering and gas sensor technology. His innovative patents continue to shape the landscape of the industry, paving the way for a more efficient and sustainable future.

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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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