logo

For the Inventor, By the Inventor

Yamatokoriyama, Japan

Kouichi Yamauchi

This inventor holds 12 USPTO granted patents. Top assignee: Sharp Kabushiki Kaisha Corporation. Active years: 1994-2005.

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

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

USPTO Granted Patents = 12

% Patents Active = 100.0

Average Co-Inventor Count = 6.6

ph-index = 5

Forward Citations = 58(Granted Patents)


Company Filing History:

goldMedal12 out of 25,954 
 
Sharp Kabushiki Kaisha Corporation
 patents

Years Active: 1994-2005

Loading Chart...
12 patents (USPTO):Explore Patents
1. 6889027 - Multicolored image forming apparatus for forming multicolored and monochromatic images (2005-05-03),
2. 6259869 - Image forming apparatus (2001-07-10),
3. 6233422 - Image forming apparatus having transfer drum with transfer paper charging member (2001-05-15),
4. 6169862 - Image forming apparatus with nip time changing device (2001-01-02),
5. 6118954 - Image forming apparatus having transfer roller with charge-removing and (2000-09-12),
6. 6081686 - Image forming apparatus having transfer drum with specific construction (2000-06-27),
7. 6081685 - Transfer apparatus having a transfer drum (2000-06-27),
8. 6026256 - Image forming apparatus (2000-02-15),
9. 5812923 - Image forming apparatus equipped with register rollers for curling (1998-09-22),
10. 5799225 - Image forming apparatus having variable transfer and attraction voltage (1998-08-25),
11. 5623329 - Transfer device for an image forming apparatus (1997-04-22),
12. 5285240 - Image forming machine comprising three separable frames with (1994-02-08),

Title: Kouichi Yamauchi: Innovator in Image Forming Technology

Introduction

Kouichi Yamauchi is a prominent inventor based in Yamatokoriyama, Japan. He has made significant contributions to the field of image forming technology, holding a total of 12 patents. His innovative designs have enhanced the efficiency and performance of image forming apparatuses.

Latest Patents

Yamauchi's latest patents include a multicolored image forming apparatus designed to create both multicolored and monochromatic images. This apparatus features a junction/disjunction unit that connects and disconnects a transfer material holder from an image holder. This allows for a seamless transition between monochromatic and multicolored image forming modes. The driving unit not only operates the junction/disjunction unit but also drives an auger that conveys recovered toner into a recovery container, optimizing cost performance. Another notable patent is an image forming apparatus that utilizes a transfer drum to attract and hold transfer paper electrostatically. This design includes a voltage application mechanism and a charge control system to ensure effective image transfer from the photosensitive drum to the transfer paper.

Career Highlights

Kouichi Yamauchi has dedicated his career to advancing image forming technologies. His work at Sharp Kabushiki Kaisha Corporation has positioned him as a key player in the industry. His innovative patents reflect his commitment to improving the functionality and efficiency of image forming devices.

Collaborations

Yamauchi has collaborated with notable colleagues such as Fumio Shimazu and Hiroshi Tachiki. Their combined expertise has contributed to the development of cutting-edge technologies in the field.

Conclusion

Kouichi Yamauchi's contributions to image forming technology through his patents and collaborations have significantly impacted the industry. His innovative spirit continues to drive advancements in this essential field.

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]
Loading…