Tokyo, Japan

Tetsuji Nishikawa

This inventor holds 18 USPTO granted patents and 1 published patent application and 4 EPO patents, primarily in Image Forming Technology. Top assignee: Ricoh Company, Ltd.. Active years: 2010-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tetsuji Nishikawa. Retrieved from https://idiyas.com/inventor/tetsuji-nishikawa

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

Calculating rank
USPTO Granted Patents = 18 

% Patents Active = 50.0

 

Average Co-Inventor Count = 6.3

ph-index = 3

Forward Citations = 34(Granted Patents)


Location History:

  • Machida, JP (2010 - 2015)
  • Tokyo, JP (2010 - 2016)
  • Kanagawa, JP (2018)

Company Filing History:


Years Active: 2010-2018

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Areas of Expertise:
Image Forming Apparatus
Foreign Object Detection
Multicolor Imaging
Sheet Conveyance
Locking Drawer Unit
Variable Length Cable Holder
Paper-Feeding Path
State Determining Device
Connector Technology
Electronic Device
Image Processing
Cartridge Loading
18 patents (USPTO):Explore Patents

Title: Tetsuji Nishikawa: Innovator in Image Forming Technology

Introduction

Tetsuji Nishikawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of image forming technology, holding a total of 18 patents. His innovative work has led to advancements in various systems and devices that enhance image formation and detection.

Latest Patents

Among his latest patents are several noteworthy inventions. One of these is an image forming apparatus that includes an apparatus body accommodating an image forming device. This apparatus features a foreign object detector that identifies foreign objects beside the apparatus body, along with a detector holding unit that secures the foreign object detector. Notably, both the foreign object detector and the detector holding unit are designed to be movable together into the apparatus body. Another significant patent is for a mount board tray and electronic device with a mount board tray. This mount board tray is engineered to hold multiple mount boards at varying heights, both above and below the tray. It effectively supports the topmost mount board from below while simultaneously holding the bottommost mount board from above.

Career Highlights

Tetsuji Nishikawa has had a distinguished career, working with leading companies in the technology sector. He has been associated with Ricoh Company, Ltd. and Mitsubishi Electric Corporation, where he has contributed to various innovative projects and developments.

Collaborations

Throughout his career, Nishikawa has collaborated with several talented individuals, including Yasuhiro Maehata and Yasuhisa Ehara. These collaborations have further enriched his work and led to the development of cutting-edge technologies.

Conclusion

Tetsuji Nishikawa's contributions to image forming technology and his impressive portfolio of patents highlight his role as a key innovator in the field. His work continues to influence advancements in technology, making a lasting impact on the industry.

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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