logo

For the Inventor, By the Inventor

Tokyo, Japan

Yasunobu Shimizu

This inventor holds 74 USPTO granted patents and 2 published patent applications and 8 EPO patents, primarily in Image Forming Apparatus. Top assignees: Teac Corporation, Ricoh Company, Ltd., Sumco Corporation. Active years: 1995-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasunobu Shimizu. Retrieved from https://idiyas.com/inventor/yasunobu-shimizu

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

USPTO Granted Patents = 74 

% Patents Active = 85.1

 

Average Co-Inventor Count = 3.4

ph-index = 12

Forward Citations = 451(Granted Patents)

Forward Citations (Not Self Cited) = 424(Dec 10, 2025)


Location History:

  • Tokorozawa, JP (1995)
  • Musashino, JP (1996 - 2007)
  • Zama, JP (2012)
  • Tokyo, JP (1995 - 2023)
  • Kanagawa, JP (2014 - 2024)

Company Filing History:

goldMedal36 out of 1,030 
 
Teac Corporation
 patents
silverMedal35 out of 28,951 
 
Ricoh Company, Ltd.
 patents
bronzeMedal3 out of 625 
 
Sumco Corporation
 patents

Years Active: 1995-2026

Loading Chart...
Loading Chart...
Areas of Expertise:
Image Forming Apparatus
Toner Conveying Device
Transfer Bias Control
Quartz Crucible
Developing Device
Transfer Device
Recording Medium
Power Supply Module
Audio Recorder
Digital Audio Player
74 patents (USPTO):Explore Patents
1. 12686942 - Manufacturing method of single crystals (2026-07-21),
2. 11868064 - Image forming apparatus with a toner conveying device having a reverse-flow conveying portion (2024-01-09),
3. 11703452 - Method and apparatus for measuring transmittance of quartz crucible (2023-07-18),
4. 11513464 - Image forming apparatus having an apparatus body and a detachable unit including a rotary body and drive gear (2022-11-29),
5. 11361462 - Method of evaluating inner circumference of quartz crucible and quartz crucible inner circumference evaluation apparatus (2022-06-14),
6. 9921541 - Developing device, and image forming apparatus and process cartridge incorporating same (2018-03-20),
7. 9864307 - Image forming apparatus with a controller to set transfer bias (2018-01-09),
8. 9772579 - Developing device and image forming apparatus incorporating same (2017-09-26),
9. 9625851 - Developing device and image forming apparatus incorporating same (2017-04-18),
10. 9535375 - Image forming apparatus with transfer output device outputting superimposed bias as transfer bias (2017-01-03),
11. 9488937 - Image forming apparatus (2016-11-08),
12. 9454107 - Image forming apparatus (2016-09-27),
13. 9323170 - Image forming apparatus with a controller to set transfer bias (2016-04-26),
14. 9291955 - Image forming apparatus and transfer bias application device therein (2016-03-22),
15. 9291934 - Image forming apparatus (2016-03-22),

Title: Yasunobu Shimizu: Pioneering Inventor from Tokyo

Introduction: Yasunobu Shimizu is a renowned inventor hailing from Tokyo, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Yasunobu Shimizu holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous commitment to pushing the boundaries of technological advancement.

Career Highlights: With a career spanning over two decades, Shimizu has worked with leading tech companies in Japan, spearheading research and development projects that have led to significant technological breakthroughs in various industries.

Collaborations: Throughout his career, Yasunobu Shimizu has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge exchange.

Conclusion: Yasunobu Shimizu's relentless pursuit of innovation and his passion for creating cutting-edge technologies have solidified his reputation as a visionary inventor in the global tech community.

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…