Nagoya, Japan

Hisashi Tsukawaki

This inventor holds 7 USPTO granted patents and 1 published patent application. Top assignee: Brother Kogyo Kabushiki-Kaisha. Active years: 2014-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisashi Tsukawaki. Retrieved from https://idiyas.com/inventor/hisashi-tsukawaki

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

USPTO Granted Patents = 7 

% Patents Active = 85.7

Average Co-Inventor Count = 2.4

ph-index = 1

Forward Citations = 4(Granted Patents)


Location History:

  • Atsuta-ku, JP (2015)
  • Aichi, JP (2019)
  • Nagoya, JP (2014 - 2020)

Company Filing History:


Years Active: 2014-2020

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7 patents (USPTO):Explore Patents

Title: Hisashi Tsukawaki: Innovator in Image Forming Technology

Introduction

Hisashi Tsukawaki is a prominent inventor based in Nagoya, Japan. He has made significant contributions to the field of image forming technology, holding a total of 7 patents. His work has been instrumental in advancing the efficiency and functionality of image forming apparatuses.

Latest Patents

One of Hisashi Tsukawaki's latest patents is an image forming apparatus. This invention involves a controller that executes acquisition processing to acquire an area of an image in a predetermined region of a first page where a developer image is to be formed. The controller also manages heating processing to ensure that a heating member reaches a fixing temperature. Additionally, it initiates the feeding of a sheet to a process unit after a specific period of time has elapsed from a predetermined timing after the start of print processing. The design allows for adjustments based on the area of the image, optimizing the feeding process accordingly.

Another notable patent is a fixing device featuring a multi-position cam assembly. This invention allows for the switching between four nip modes, driven by a single cam. Each position alters the widths of the nips between pressing bodies and a fixing member, enhancing the versatility and performance of the device.

Career Highlights

Hisashi Tsukawaki is currently employed at Brother Kogyo Kabushiki-kaisha, a company renowned for its innovative printing solutions. His work at Brother has positioned him as a key player in the development of advanced image forming technologies.

Collaborations

Throughout his career, Tsukawaki has collaborated with notable colleagues, including Noboru Suzuki and Kei Ishida. These partnerships have fostered a creative environment that has led to numerous advancements in their field.

Conclusion

Hisashi Tsukawaki's contributions to image forming technology through his patents and collaborations highlight his role as an influential inventor. His work continues to shape the future of printing solutions, making a lasting impact in 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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