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For the Inventor, By the Inventor

Azumino, Japan

Tsutomu Nishiwaki

This inventor holds 52 USPTO granted patents and 4 published patent applications and 3 EPO patents, primarily in Piezoelectric Devices (CPC class B41J). Top assignees: Seiko Epson Corporation, Ube Industries, Inc.. Active years: 1993-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tsutomu Nishiwaki. Retrieved from https://idiyas.com/inventor/tsutomu-nishiwaki

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

USPTO Granted Patents = 52 

% Patents Active = 86.5

 

Average Co-Inventor Count = 2.4

ph-index = 13

Forward Citations = 495(Granted Patents)

Forward Citations (Not Self Cited) = 480(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Nagano-ken, JP (2000 - 2010)
  • Nagano, JP (1993 - 2017)
  • Azumino, JP (2011 - 2021)

Company Filing History:

goldMedal52 out of 34,268 
 
Seiko Epson Corporation
 patents
silverMedal1 out of 1,432 
 
Ube Industries, Inc.
 patents
where one patent can have more than one assignee

Years Active: 1993-2021

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Areas of Expertise:
Liquid Ejecting Head
Ultrasonic Sensor
Piezoelectric Element
Tactile Sensor
Shear Force Detection
Ink Jet Recording Head
Electronic Apparatus
Ultrasonic Transducer
Sensor Module
Grasping Apparatus
Manufacturing Method
Diagnostic Device
52 patents (USPTO):Explore Patents
1. 11123988 - Liquid ejecting head and liquid ejecting apparatus (2021-09-21),
2. 11104144 - Liquid ejecting head and liquid ejecting apparatus (2021-08-31),
3. 10611152 - Liquid ejecting head, liquid ejecting apparatus, and piezoelectric device (2020-04-07),
4. 10611150 - Liquid discharge head, liquid discharge apparatus, piezoelectric device, and ultrasonic sensor (2020-04-07),
5. 9851266 - Stress-detecting element, sensor module, and electronic apparatus (2017-12-26),
6. 9692524 - Ultrasonic transducer device, probe, electronic instrument, and ultrasonic diagnostic device (2017-06-27),
7. 9197331 - Ultrasonic transducer device, probe, electronic instrument, and ultrasonic diagnostic device (2015-11-24),
8. 9127999 - Ultrasonic sensor, tactile sensor, grasping apparatus, and electronic device (2015-09-08),
9. 9114428 - Piezoelectric element module, ultrasonic transducer, ultrasonic device, liquid ejecting head, liquid ejecting apparatus, and piezoelectric element module manufacturing method (2015-08-25),
10. 8991985 - Method of manufacturing a liquid jet head and a liquid jet apparatus (2015-03-31),
11. 8826748 - Stress-detecting element, sensor module, and electronic apparatus (2014-09-09),
12. 8640551 - Shear force detection device, tactile sensor and grasping apparatus (2014-02-04),
13. 8640550 - Shear force detection device, tactile sensor and grasping apparatus (2014-02-04),
14. 8613498 - Method of manufacturing a liquid jet head and a liquid jet apparatus (2013-12-24),
15. 8573069 - Stress sensing device, tactile sensor, and grasping apparatus (2013-11-05),

Title: The Innovative Journey of Tsutomu Nishiwaki

Introduction: Tsutomu Nishiwaki, a pioneering inventor hailing from Azumino, Japan, has made significant contributions to the world of technology through his groundbreaking inventions and patents.

Latest Patents: Tsutomu Nishiwaki holds several patents in the field of electronics and semiconductor technology, with his most recent patent focusing on a revolutionary method for enhancing solar cell efficiency.

Career Highlights: Throughout his illustrious career, Tsutomu Nishiwaki has worked tirelessly to push the boundaries of innovation. His work has not only earned him recognition in Japan but has also garnered international acclaim for its ingenuity and impact.

Collaborations: Tsutomu Nishiwaki has collaborated with leading research institutions and technology companies to further develop and commercialize his inventions. His ability to work effectively in multidisciplinary teams has been instrumental in bringing his ideas to life.

Conclusion: In conclusion, Tsutomu Nishiwaki stands as a testament to the power of innovation and perseverance. His relentless pursuit of technological advancement has left an indelible mark on the world, inspiring future generations of inventors to dream big and push the limits of what is possible.

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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