Osaka, Japan

Chikara Hiraoka

This inventor holds 24 USPTO granted patents and 1 published patent application and 2 EPO patents, primarily in Image Forming Technology. Top assignees: Ricoh Company, Ltd., Ricoh Printing Systems, Ltd., Hitachi, Ltd.. Active years: 1996-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chikara Hiraoka. Retrieved from https://idiyas.com/inventor/chikara-hiraoka

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

USPTO Granted Patents = 24 

% Patents Active = 33.3


Average Co-Inventor Count = 4.7

ph-index = 8

Forward Citations = 223(Granted Patents)


Location History:

  • Chiyoda-machi, JP (1998 - 2000)
  • Ibaraki-ken, JP (2000)
  • Ibaraki, JP (1996 - 2011)
  • Hitachi, JP (2002 - 2011)
  • Osaka, JP (2012 - 2015)

Company Filing History:


Years Active: 1996-2015

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Areas of Expertise:
Image Forming Apparatus
Fixing Device
Electro-Photographic
Media Guide Mechanism
Fusing Apparatus
Developing Device
Temperature Detection
Mechanical Shock Minimization
Offset Prevention
Recording Apparatus
Heat Fixing Device
Pressure Members
24 patents (USPTO):Explore Patents

Article Title: Unveiling the Ingenious Mind of Chikara Hiraoka: Pioneering Innovations in Image Forming Technology

Introduction: Chikara Hiraoka, a talented inventor hailing from Osaka, Japan, has made a significant mark in the world of technology with a remarkable total of 24 patents to his name. His groundbreaking work in image forming apparatus and air flow optimization has revolutionized the efficiency and performance of printing and imaging devices.

Latest Patents: Among his latest patents, Chikara Hiraoka has introduced cutting-edge concepts in image forming apparatus, including an advanced air flow path design that enhances the functionality of key components within the system. By leveraging negative pressure generated by hot air currents, Hiraoka's inventions ensure optimal airflow for improved performance and longevity of imaging devices.

Career Highlights: Chikara Hiraoka has been associated with renowned companies such as Ricoh Company, Ltd. and Ricoh Printing Systems, Ltd., where he has played a pivotal role in driving innovation and technological advancement in the imaging industry. His expertise and creative solutions have positioned him as a trailblazer in the field of image forming technology.

Collaborations: Throughout his illustrious career, Chikara Hiraoka has collaborated with esteemed professionals such as Toshio Ogiso and Toru Hanashima, synergizing their collective knowledge and skills to push the boundaries of traditional printing methodologies. Together, they have developed sophisticated solutions that have set new benchmarks in the industry.

Conclusion: In conclusion, Chikara Hiraoka's relentless pursuit of innovation and commitment to excellence have solidified his reputation as a visionary inventor in the realm of image forming technology. His pioneering patents and collaborative efforts stand as a testament to his enduring legacy as a trailblazer 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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