Ibaraki, Japan

Hiroaki Miyagawa

This inventor holds 22 USPTO granted patents and 3 published patent applications and 3 EPO patents, primarily in Image Forming Technology. Top assignee: Ricoh Company, Ltd.. Active years: 2015-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroaki Miyagawa. Retrieved from https://idiyas.com/inventor/hiroaki-miyagawa

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

USPTO Granted Patents = 22 

% Patents Active = 81.8

 

Average Co-Inventor Count = 2.1

ph-index = 2

Forward Citations = 14(Granted Patents)


Location History:

  • Kanagawa, JP (2017 - 2022)
  • Ibaraki, JP (2015 - 2024)

Company Filing History:


Years Active: 2015-2026

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Areas of Expertise:
Image Forming Apparatus
Sheet Suction Device
Cooling Device
Conveyor
Printer
Liquid Discharge Device
Suction Area Switching
Temperature Gradient
Liquid Cooling
Sheet Conveyor
Cooling Conveyor
Suction Region Changing
22 patents (USPTO):Explore Patents

Title: Hiroaki Miyagawa: Innovator in Printing Technology

Introduction

Hiroaki Miyagawa, based in Ibaraki, Japan, is a prolific inventor in the field of printing technology, holding an impressive total of 21 patents. His contributions to the industry are marked by innovative devices designed to optimize the printing process, enhance efficiency, and improve the quality of printed materials.

Latest Patents

Among his latest patents are the Sheet Suction Device, Sheet Conveyor, and Printer. The Sheet Suction Device features a drum equipped with multiple suction ports on its circumferential surface. This ingenious design allows the drum to bear a sheet and rotate accordingly while a suction device attracts the sheet through the suction ports. Notably, the drum is divided into several suction regions, including an upstream, middle, and downstream area, with a unique configuration ensuring effective sheet handling during the printing process.

Additionally, the patent for the Sheet Suction Device, Sheet Conveyor, and Suction Area Switching Device illustrates Miyagawa's commitment to innovation. This device incorporates a sheet bearer with various suction holes and features two members that interact to change the number of holes communicating with the suction unit as one member rotates relative to the other. This interaction guarantees flexibility and efficiency in the suction operation, allowing multiple holes to engage simultaneously.

Career Highlights

Hiroaki Miyagawa is currently employed at Ricoh Company, Ltd., a leader in developing printing solutions and technologies. His role involves not only the design and implementation of innovative devices but also contributing to ongoing research aimed at refining printing capabilities. His extensive portfolio of patents reflects a dedication to advancing the field and providing practical solutions for modern printing challenges.

Collaborations

Throughout his career, Miyagawa has collaborated with notable colleagues, including Tomoyasu Hirasawa and Susumu Tateyama. Working closely with these professionals has fostered a creative environment, leading to groundbreaking inventions and the continuous improvement of Ricoh's product offerings.

Conclusion

Hiroaki Miyagawa stands out as a significant contributor to the printing industry, with a focus on developing innovative technologies that enhance productivity and efficiency. His patents, particularly the Sheet Suction Device and associated devices, exemplify his inventive spirit and dedication to pushing the boundaries of printing technology. As he continues to work alongside talented colleagues at Ricoh Company, Ltd., Miyagawa's impact on the industry is sure to grow, paving the way for future advancements in printing solutions.

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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