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For the Inventor, By the Inventor

Nara, Japan

Shigeharu Maehara

This inventor holds 11 USPTO granted patents. Top assignee: Sharp Kabushiki Kaisha Corporation. Active years: 1986-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeharu Maehara. Retrieved from https://idiyas.com/inventor/shigeharu-maehara

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

USPTO Granted Patents = 11

% Patents Active = 100.0

Average Co-Inventor Count = 1.5

ph-index = 5

Forward Citations = 105(Granted Patents)


Location History:

  • Ikoma, JP (1994)
  • Ikoma-gun, JP (1997 - 1999)
  • Nara, JP (1986 - 2007)

Company Filing History:

goldMedal11 out of 25,954 
 
Sharp Kabushiki Kaisha Corporation
 patents

Years Active: 1986-2007

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11 patents (USPTO):Explore Patents
1. 7257343 - Image forming apparatus performing post treatment accompanied with perforation (2007-08-14),
2. 6850715 - Image forming apparatus with developer detector (2005-02-01),
3. 6266492 - Image forming apparatus with expendable member and random number generator (2001-07-24),
4. 5966562 - Fixing device having temperature control means (1999-10-12),
5. 5627628 - Electrophotographic apparatus (1997-05-06),
6. 5453818 - Document detection device and a copying machine provided with the (1995-09-26),
7. 5291244 - Image forming apparatus communication system (1994-03-01),
8. 4853748 - Variable magnification copier (1989-08-01),
9. 4811054 - Composite copier with trimming and masking modes of operation (1989-03-07),
10. 4783682 - Copy paper delivery timing control device (1988-11-08),
11. 4627704 - Light amount limiting device of electrophotographic copying machine (1986-12-09),

Title: Shigeharu Maehara: Innovator in Image Forming Technology

Introduction

Shigeharu Maehara is a prominent inventor based in Nara, Japan. He has made significant contributions to the field of image forming technology, holding a total of 11 patents. His innovative work has led to advancements that enhance the functionality and reliability of image forming apparatuses.

Latest Patents

One of Maehara's latest patents is for an image forming apparatus that performs post-treatment accompanied by perforation. This invention allows for an additional image to be formed on a recording medium by filling a predetermined area that includes a punched or stapled portion. The additional image can be created using white or transparent developer, which reinforces the recording medium around the punched or stapled areas, preventing it from breaking easily. Another notable patent involves an image forming apparatus equipped with a developer detector. This technology prevents printing with a developer whose lifetime has expired, ensuring stable printing results. It also includes features to prevent the erroneous insertion of a developer supply container, enhancing the overall reliability of the apparatus.

Career Highlights

Shigeharu Maehara is currently employed at Sharp Corporation, where he continues to innovate in the field of image forming technologies. His work has been instrumental in developing solutions that address common issues faced in printing and image formation.

Collaborations

Maehara has collaborated with notable colleagues such as Junichi Kajiwara and Jun Morimoto. Their combined expertise has contributed to the successful development of various technologies in the image forming sector.

Conclusion

Shigeharu Maehara's contributions to image forming technology have made a significant impact on the industry. His innovative patents and collaborative efforts continue to drive advancements in this 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]
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