Tokyo, Japan

Chizuko Yasunobu

This inventor holds 16 USPTO granted patents. Top assignees: Hitachi, Ltd., Hitachi Research Institute, Other. Active years: 1987-2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chizuko Yasunobu. Retrieved from https://idiyas.com/inventor/chizuko-yasunobu

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


% Patents Active = 81.3

Average Co-Inventor Count = 5.1

ph-index = 8

Forward Citations = 539(Granted Patents)


Location History:

  • Yokohama, JP (1987 - 1996)
  • Tokyo, JP (1997 - 2009)

Company Filing History:

goldMedal15 out of 42,731 
 
Hitachi, Ltd.
 patents
silverMedal2 out of 2 
 
Hitachi Research Institute
 patents
bronzeMedal1 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1987-2009

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16 patents (USPTO):Explore Patents

Title: Inventor Spotlight: Chizuko Yasunobu

Introduction: Chizuko Yasunobu is an innovative inventor based in Tokyo, Japan, with a remarkable portfolio of 16 patents to her name. Her groundbreaking work in the field of electronic circuit chip mounting and authentication has significantly advanced the technology industry.

Latest Patents:

1. Method of Mounting Electronic Circuit Chip: Yasunobu's method involves mounting a planar electronic circuit chip onto a flexible sheet alongside another planar electronic element. By ensuring parallel alignment and accommodation within the planar surface, this technique enhances the efficiency and functionality of electronic devices.

2. Method of Checking Authenticity of Sheet with Built-In Electronic Circuit Chip: Yasunobu's innovative approach to verifying the authenticity of sheets involves encrypting visible information and storing it in the electronic circuit chip. This method ensures secure authentication by comparing the stored information with visible data on the sheet.

Career Highlights: Yasunobu has made significant contributions to the tech industry through her work at renowned companies such as Hitachi, Ltd. and the Hitachi Research Institute. Her expertise and inventive solutions have had a lasting impact on electronic circuit technology and authentication methods.

Collaborations: Throughout her career, Yasunobu has collaborated with accomplished professionals such as Mitsuo Usami and Kazutaka Tsuji. Together, they have worked on cutting-edge projects that have pushed the boundaries of innovation in electronic circuitry.

Conclusion: Chizuko Yasunobu's dedication to advancing electronic circuit chip technology and authentication methods has established her as a pioneering inventor in the industry. Her patented inventions continue to inspire new developments and pave the way for future innovations in the 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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