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For the Inventor, By the Inventor

Tokyo, Japan

Kazuhiko Yuuki

This inventor holds 11 USPTO granted patents and 1 EPO patent. Top assignee: Ricoh Company, Ltd.. Active years: 1999-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuhiko Yuuki. Retrieved from https://idiyas.com/inventor/kazuhiko-yuuki

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 = 72.7


Average Co-Inventor Count = 5.4

ph-index = 7

Forward Citations = 167(Granted Patents)


Location History:

  • Yokohama, JP (1999 - 2000)
  • Kawasaki, JP (2000)
  • Kanagawa, JP (2001 - 2004)
  • Tokyo, JP (2003 - 2007)
  • Ohta-ku, JP (2007)

Company Filing History:

goldMedal11 out of 28,940 
 
Ricoh Company, Ltd.
 patents

Years Active: 1999-2007

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11 patents (USPTO):Explore Patents
1. 7289748 - Apparatus and method for replenishing a developing device with toner while suppressing toner remaining (2007-10-30),
2. 7218880 - Apparatus and method for replenishing a developing device with toner while suppressing toner remaining (2007-05-15),
3. 6748190 - Apparatus and method for replenishing a developing device with toner while suppressing toner remaining (2004-06-08),
4. 6690896 - Image forming apparatus, replacement assembly for image forming apparatus and integrated circuit chip therefor (2004-02-10),
5. 6603943 - Developing apparatus including first and second agitating members in which the first agitating member includes non-screw portion (2003-08-05),
6. 6567637 - Apparatus and method for replenishing a developing device with toner while suppressing toner remaining (2003-05-20),
7. 6366754 - Color image forming apparatus with toner recycling (2002-04-02),
8. 6334039 - Method and apparatus for image forming apparatus capable of accurately detecting toner image patterns (2001-12-25),
9. 6141521 - Image forming device and method therefor (2000-10-31),
10. 6101361 - Image forming apparatus with a device and a method to increase contact (2000-08-08),
11. 5884134 - Image forming apparatus with a device to increase contact area between a (1999-03-16),

Title: Kazuhiko Yuuki: Innovator in Toner Replenishing Technology

Introduction

Kazuhiko Yuuki is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of toner replenishing technology, holding a total of 11 patents. His work has been instrumental in enhancing the efficiency and functionality of developing devices used in printing.

Latest Patents

One of Yuuki's latest patents is an apparatus and method for replenishing a developing device with toner while suppressing toner remaining. This innovative toner replenishing device includes a toner conveyance path that connects a toner storing device with a developing device. It features a toner conveying device that transports toner from the storing device to the developing device along the conveyance path. Additionally, an air supplying device is connected to the toner conveyance path via an air supply path, which supplies air from the bottom of the toner storing device to agitate the toner pooling within it.

Career Highlights

Kazuhiko Yuuki is currently employed at Ricoh Company, Ltd., where he continues to develop and refine technologies related to toner replenishment. His expertise in this area has led to advancements that improve the overall performance of printing devices.

Collaborations

Yuuki has collaborated with notable coworkers, including Yoshinori Ozawa and Masumi Sato. Their combined efforts have contributed to the innovative solutions developed at Ricoh Company, Ltd.

Conclusion

Kazuhiko Yuuki's contributions to toner replenishing technology have made a significant impact in the printing 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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