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For the Inventor, By the Inventor

Mishima, Japan

Kazuhiko Ohtsu

This inventor holds 37 USPTO granted patents and 18 published patent applications and 3 EPO patents, primarily in Inkjet Technology. Top assignees: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha Toshiba. Active years: 2001-2025.

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

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

USPTO Granted Patents = 37 

% Patents Active = 62.2

 

Average Co-Inventor Count = 2.9

ph-index = 5

Forward Citations = 117(Granted Patents)


Location History:

  • Numazu, JP (2001)
  • Mishima, JP (2005 - 2012)
  • Shizuoka-ken, JP (2015 - 2018)
  • Shizuoka, JP (2013 - 2019)
  • Mishima Shizuoka, JP (2017 - 2020)

Company Filing History:

goldMedal37 out of 6,290 
 
Toshiba Tec Kabushiki Kaisha
 patents
silverMedal13 out of 53,262 
 
Kabushiki Kaisha Toshiba
 patents
where one patent can have more than one assignee

Years Active: 2001-2025

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Areas of Expertise:
Ink Circulation Device
Liquid Discharge Method
Inkjet Recording Apparatus
Diaphragm Pump
Liquid Ejection Apparatus
Photosensitive Inkjet Ink
Ink Composition
Pigment Dispersion
Liquid Circulation Module
Inkjet Printer
Inkjet Ink
Recycled Paper
37 patents (USPTO):Explore Patents
1. 12389177 - Information processing device and information processing program (2025-08-12),
2. 10611169 - Diaphragm pump, liquid circulation module and liquid discharge apparatus (2020-04-07),
3. 10343414 - Liquid circulation device, liquid discharge device and liquid discharge method (2019-07-09),
4. 10272692 - Liquid circulation device, liquid ejection apparatus, and liquid ejection method (2019-04-30),
5. 10239325 - Liquid circulation device, liquid discharge device and liquid discharge method (2019-03-26),
6. 10160223 - Ink circulation device for ink jet head (2018-12-25),
7. 10065428 - Liquid circulation module and liquid ejection apparatus (2018-09-04),
8. RE46980 - Inkjet recording apparatus and recording method by the same usable with recycled paper (2018-08-06),
9. 10022978 - Ink circulation device and ink jet recording apparatus (2018-07-17),
10. 9987853 - Liquid circulation device, liquid discharge device and liquid discharge method (2018-06-05),
11. 9878535 - Ink circulation device and printer (2018-01-30),
12. 9827778 - Ink circulation device and ink ejection device (2017-11-28),
13. 9694595 - Liquid circulation device, liquid discharge device and control method for the same (2017-07-04),
14. 9649849 - Ink circulation device and ink jet recording apparatus (2017-05-16),
15. RE46252 - Inkjet recording apparatus and recording method by the same (2016-12-26),

Title: Kazuhiko Ohtsu - The Innovative Mind from Mishima

Introduction: Kazuhiko Ohtsu is a renowned inventor hailing from Mishima, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Kazuhiko Ohtsu holds several patents in various technological domains, showcasing his continuous dedication to pushing the boundaries of innovation.

Career Highlights: Throughout his illustrious career, Kazuhiko Ohtsu has been instrumental in developing cutting-edge technologies that have revolutionized industries and improved the lives of many.

Collaborations: Kazuhiko Ohtsu has collaborated with leading research institutions, universities, and companies worldwide, fostering a culture of innovation and knowledge sharing.

Conclusion: Kazuhiko Ohtsu's passion for innovation and his relentless pursuit of excellence continue to inspire the next generation of inventors and shape the future of technology.

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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