Tokyo, Japan

Takaaki Yanagisawa

This inventor holds 28 USPTO granted patents and 3 EPO patents, primarily in Image Formation Technology. Top assignee: Ricoh Company, Ltd.. Active years: 1993-2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takaaki Yanagisawa. Retrieved from https://idiyas.com/inventor/takaaki-yanagisawa

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

Calculating rank

% Patents Active = 75.0


Average Co-Inventor Count = 6.1

ph-index = 18

Forward Citations = 1,123(Granted Patents)


Location History:

  • Tokyo-to, JP (2004)
  • Yokohama, JP (1995 - 2005)
  • Ohta-ku, JP (2002 - 2007)
  • Tokyo, JP (1993 - 2009)

Company Filing History:


Years Active: 1993-2009

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Areas of Expertise:
Toner Supply Unit
Image Forming Apparatus
Developer Replenishing Device
Toner Container
Electrophotographic Process
Toner Replenishing Device
Toner Discharging Portion
Color Image Formation
Toner Remaining Suppression
Rotatable Process Unit
Noise Reduction
Support Structure
28 patents (USPTO):Explore Patents

Title: Takaaki Yanagisawa: Innovator in Imaging Technology

Introduction

Takaaki Yanagisawa is a prominent inventor based in Tokyo, Japan, known for his significant contributions to imaging technology. With a remarkable portfolio of 28 patents, he has been at the forefront of developing innovative solutions that enhance printer functionalities and efficiency.

Latest Patents

His latest inventions include a toner supply unit and an image forming apparatus. The toner supply unit is designed with a preventing unit that effectively minimizes toner contamination due to leakage from the sealing valve. A mouth ring of the toner container is equipped with this sealing valve, which is operated by removing or inserting a nozzle. This innovation significantly improves the reliability and cleanliness of printing systems.

Career Highlights

Takaaki Yanagisawa's career has been largely affiliated with Ricoh Company, Ltd., where he has played a crucial role in research and development. His innovative mindset has led to numerous breakthroughs in imaging technologies, solidifying his reputation in the industry.

Collaborations

Throughout his career, Yanagisawa has collaborated with various talented individuals, including notable coworkers such as Tomotoshi Nakahara and Masumi Sato. These collaborations have fostered an environment of creativity and innovation at Ricoh, leading to advancements that benefit consumers and businesses alike.

Conclusion

Takaaki Yanagisawa stands out as a key figure in the realm of imaging technology. With his extensive number of patents and a commitment to innovation, he continues to make significant strides in enhancing the capabilities of printing devices. His work not only demonstrates his expertise as an inventor but also contributes to the ongoing evolution of the industry.

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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