Osaka, Japan

Yosinobu Umetani

This inventor holds 2 USPTO granted patents. Top assignee: Mita Industrial Co., Ltd.. Active years: 1990-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yosinobu Umetani. Retrieved from https://idiyas.com/inventor/yosinobu-umetani

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


% Patents Active = 100.0

Average Co-Inventor Count = 1.5

ph-index = 2

Forward Citations = 9(Granted Patents)


Location History:

  • Osaka, JP (1990)
  • Yamato-takada, JP (1992)

Company Filing History:


Years Active: 1990-1992

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2 patents (USPTO):Explore Patents

Title: The Innovations of Yosinobu Umetani

Introduction

Yosinobu Umetani is a pioneering inventor based in Osaka, Japan. With a total of two patents to his name, he has made significant contributions to the field of image-forming technology. His work primarily focuses on enhancing the efficiency and quality of image formation through innovative processes and devices.

Latest Patents

Umetani's latest patents include two remarkable inventions. The first, a **magnetic developing sleeve for use in carrying out an image-forming process** using a photosensitive toner, allows for the effective scraping of light-exposed electricity-removed toner without negatively impacting the image density. This design results in a considerable reduction in fog density. The second patent, **an image-forming process using photosensitive toner**, discloses a method that involves arranging two electrode surfaces, one of which has a curvature face. By applying bias voltage and irradiating the toner layer with light, Umetani's process enables the transfer of unexposed toner towards the confronting electrode surface, showcasing his inventive prowess in the field.

Career Highlights

Yosinobu Umetani’s career is marked by his tenure at Mita Industrial Co., Ltd., where he continues to develop cutting-edge technologies. His inventive capabilities have positioned him as an essential figure in his company, contributing to groundbreaking advancements in imaging technology.

Collaborations

Throughout his career, Umetani has collaborated with talented colleagues such as Yumiko Sano and Kazuhito Takaoka. Their combined expertise fosters a productive environment that inspires innovations that push the boundaries of imaging processes and technologies.

Conclusion

Yosinobu Umetani's innovative contributions to the world of image formation demonstrate the potential of inventions to improve existing technologies. With his two patents reflecting significant advancements in the field, Umetani stands out as an influential inventor whose work continues to impact the industry positively.

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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