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For the Inventor, By the Inventor

Nara, Japan

Yasuji Yamauchi

This inventor holds 8 USPTO granted patents. Top assignee: Sharp Kabushiki Kaisha Corporation. Active years: 1991-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasuji Yamauchi. Retrieved from https://idiyas.com/inventor/yasuji-yamauchi

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

USPTO Granted Patents = 8

% Patents Active = 100.0

Average Co-Inventor Count = 4.2

ph-index = 5

Forward Citations = 45(Granted Patents)


Company Filing History:

goldMedal8 out of 25,954 
 
Sharp Kabushiki Kaisha Corporation
 patents

Years Active: 1991-2001

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8 patents (USPTO):Explore Patents
1. 6188857 - Imaging forming apparatus provided with photoreceptor unit with internal gear unit, the protector unit with internal gear, and internal gear unit (2001-02-13),
2. 6161446 - Image forming apparatus provided with photoreceptor unit with internal (2000-12-19),
3. 6014920 - Paper-punching device for use in a image-forming apparatus (2000-01-18),
4. 5927148 - Image forming apparatus equipped with photoreceptor having an internal (1999-07-27),
5. 5839336 - Paper-punching device for use in an image-forming apparatus (1998-11-24),
6. 5315360 - Copying machine for copying a one-side subject copy on both sides of a (1994-05-24),
7. 5190274 - Sheet treatment device with a variable time period for jamming indication (1993-03-02),
8. 4982241 - Automatic original document feeder (1991-01-01),

Title: Yasuji Yamauchi: Innovator in Imaging Technology

Introduction

Yasuji Yamauchi, based in Nara, Japan, is a notable inventor in the field of imaging technology. With a total of eight patents to his name, he has made significant contributions that enhance the functionality and efficiency of image forming apparatuses.

Latest Patents

Yamauchi's recent patents focus on innovative designs for imaging forming apparatuses equipped with a photoreceptor unit featuring an internal gear unit. One of his patents details an arrangement where the internal gear within the photoreceptor drum interacts with a pinion gear while maintaining stability. This design ensures that the applied contact pressure from cleaning and developer units does not distort the photoreceptor drum. By preventing interference between the non-driving surfaces of the internal gear and the pinion gear, the invention guarantees smooth rotary motion, effectively eliminating image defects linked to unstable motion.

Career Highlights

Yasuji Yamauchi's career is marked by his dedication to advancing imaging technology. Working with Sharp Kabushiki Kaisha Corporation, he has played a crucial role in developing state-of-the-art imaging solutions that streamline printing and copying processes. His innovative approach has led to a series of successful patents that continue to influence the market positively.

Collaborations

Throughout his career, Yamauchi has collaborated with talented professionals such as Toshio Yamanaka and Yoshiharu Yoneda. Together, they have worked on various projects that push the boundaries of imaging technology, furthering the capabilities and performance of their products.

Conclusion

Yasuji Yamauchi’s contributions as an inventor have significantly influenced the field of imaging technology. His inventive spirit and commitment to quality continue to inspire innovation at Sharp Corporation and beyond. His patented designs stand as a testament to his expertise and vision in enhancing the imaging experience.

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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