Hyogo, Japan

Kunio Tsuboi

This inventor holds 5 USPTO granted patents and 1 published patent application. Top assignee: Sanyo Electric Co., Ltd.. Active years: 1985-1994.

USPTO Granted Patents = 5 

% Patents Active = 100.0

Average Co-Inventor Count = 3.3

ph-index = 3

Forward Citations = 108(Granted Patents)


Location History:

  • Kasai, JP (1985)
  • Kanzaki, JP (1992)
  • Hyogo, JP (1987 - 1994)

Company Filing History:


Years Active: 1985-1994

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5 patents (USPTO):Explore Patents

Title: Innovations of Kunio Tsuboi

Introduction

Kunio Tsuboi is a notable inventor based in Hyogo, Japan. He has made significant contributions to the field of electrophotography, holding a total of five patents. His work has advanced the technology used in image forming apparatuses, showcasing his expertise and innovative spirit.

Latest Patents

One of Tsuboi's latest patents is an electrophotographing apparatus. This apparatus includes a photosensor that detects the reflectance of an original document. The output voltage from the photosensor is sent to a microcomputer, which then controls the bias voltage applied to an electric conductive substrate of a photoreceptor. This system ensures that the exposed voltage remains constant, regardless of changes in the reflectance of the original.

Another significant patent is for an image forming apparatus that features an easily exchangeable developing device. This apparatus is equipped with a toner sensor that detects toner density. The output signal from the toner sensor indicates the weight of the developer, allowing the system to determine whether the developing device is new or used. This innovation enhances the efficiency and reliability of the image forming process.

Career Highlights

Kunio Tsuboi has dedicated his career to advancing technology in the field of electrophotography. His work at Sanyo Electric Co., Ltd. has positioned him as a key player in the development of innovative imaging solutions. His patents reflect a deep understanding of the technical challenges in this field and a commitment to finding effective solutions.

Collaborations

Throughout his career, Tsuboi has collaborated with talented individuals such as Fumihiko Hamada and Mitihiko Hasegawa. These collaborations have contributed to the successful development of his patented technologies.

Conclusion

Kunio Tsuboi's contributions to the field of electrophotography are significant and impactful. His innovative patents demonstrate his expertise and commitment to advancing imaging technology. His work continues to influence the industry and inspire future innovations.

Profile summary based on public USPTO records.
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