logo

For the Inventor, By the Inventor

Nara, Japan

Hiroshi Kawahito

This inventor holds 19 USPTO granted patents. Top assignee: Sharp Kabushiki Kaisha Corporation. Active years: 1992-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Kawahito. Retrieved from https://idiyas.com/inventor/hiroshi-kawahito

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

USPTO Granted Patents = 19

% Patents Active = 57.9

Average Co-Inventor Count = 3.6

ph-index = 7

Forward Citations = 147(Granted Patents)


Location History:

  • Nara-ken, JP (2002 - 2003)
  • Kita-Katsuragi, JP (1992 - 2009)
  • Kitakatsuragi-gun, JP (1997 - 2010)
  • Nara, JP (2002 - 2012)
  • Sakai, JP (2020)

Company Filing History:

goldMedal19 out of 25,949 
 
Sharp Kabushiki Kaisha Corporation
 patents

Years Active: 1992-2020

Loading Chart...
19 patents (USPTO):Explore Patents
1. 10788786 - Image forming apparatus (2020-09-29),
2. 10551794 - Developing device including exhaust duct and filter and image forming apparatus including developing device (2020-02-04),
3. 8099014 - Image forming apparatus (2012-01-17),
4. 7925182 - Image forming apparatus (2011-04-12),
5. 7805096 - Toner conveying device, toner supply device and image forming apparatus using these (2010-09-28),
6. 7627274 - Toner conveying device, toner supply device and image forming apparatus using these (2009-12-01),
7. 7542704 - Toner carrier apparatus, toner feeding apparatus, and image forming apparatus (2009-06-02),
8. 7505711 - Waste developer collecting device and image forming apparatus provided therewith (2009-03-17),
9. 7502576 - Development apparatus for mixing recycled developer with toner in a toner supply path and image forming apparatus having same (2009-03-10),
10. 7440717 - Developing apparatus and image forming apparatus with toner supply portion opening/closing mechanism (2008-10-21),
11. 6628910 - Toner cartridge for image forming apparatus (2003-09-30),
12. D468763 - Sensitive drum cartridge for an image forming apparatus (2003-01-15),
13. D464370 - Toner cartridge (2002-10-16),
14. D464369 - Toner cartridge (2002-10-16),
15. D463817 - Developing unit for an image forming apparatus (2002-10-02),

Title: Hiroshi Kawahito: A Visionary in Image Forming Technology

Introduction

Hiroshi Kawahito, located in Nara, Japan, is a prolific inventor with a total of 19 patents to his name. His work primarily focuses on advancements in image forming technologies, making significant contributions to the field. With a robust portfolio of patents, Kawahito continues to innovate and enhance the way images are produced and processed.

Latest Patents

Among his latest patents is an innovative image forming apparatus designed to improve the efficiency and reliability of image transfer. This apparatus features a transfer unit that includes a first guide member made from conductive metal, ensuring effective guidance of paper sheets to the transfer nip portion while being electrically connected to a grounding current path. Furthermore, the development unit incorporates a second guide member, also formed of conductive material, with an elastic portion that allows for flexible movement when attaching and detaching the development and transfer units. This design is crucial for maintaining optimal performance and functionality.

Another of his notable patents involves a developing device that comprises a developer vessel, flow-path forming portion, and exhaust duct. This device allows for the efficient accommodation of toner and carrier materials. The exhaust duct features an intake port linked to several connection flow paths, ensuring a smooth and efficient workflow by maintaining clear communication between different elements of the device. The flow paths are designed to increase in cross-sectional area significantly from the inlet to the outlet, enhancing performance.

Career Highlights

Hiroshi Kawahito works at Sharp Corporation, where he has played a pivotal role in advancing technology in the imaging sector. His impressive body of work reflects a commitment to innovation and excellence, establishing him as a prominent figure within the industry.

Collaborations

Kawahito has collaborated with esteemed colleagues such as Yasuyuki Ishiguro and Takeshi Wakabayashi. Together, they have contributed to groundbreaking developments in imaging technology, showcasing the importance of teamwork and expertise in achieving significant advancements in their field.

Conclusion

Hiroshi Kawahito stands out as a leading inventor in image forming technology, continually pushing the boundaries of what is possible through his innovative patents. With his ongoing contributions at Sharp Corporation and collaborative efforts with other talented professionals, Kawahito is set to shape the future of imaging solutions for years to come.

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…