Toyokawa, Japan

Kazunari Shimizu

This inventor holds 19 USPTO granted patents and 1 published patent application and 5 EPO patents, primarily in Ophthalmic Measurement. Top assignee: Nidek Co., Ltd.. Active years: 2008-2025.

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

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

USPTO Granted Patents = 19 

% Patents Active = 89.5

 

Average Co-Inventor Count = 2.1

ph-index = 3

Forward Citations = 45(Granted Patents)


Location History:

  • Gamagori, JP (2008 - 2016)
  • Toyokawa-shi, JP (2017)
  • Toyokawa, JP (2015 - 2021)
  • Aichi, JP (2014 - 2023)

Company Filing History:


Years Active: 2008-2025

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Areas of Expertise:
Ophthalmologic Measurement
Ultrasonic Tonometer
Eye Refractive Power
Corneal Endothelial Cells
Ophthalmic Examination
Non-Contact Measurement
Ophthalmic Imaging
Vision Quality Evaluation
Eyeglass Prescription
Diagnostic Apparatus
Cornea Shape Measurement
19 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Kazunari Shimizu

Introduction

Kazunari Shimizu is an accomplished inventor based in Toyokawa, Japan, known for his significant contributions to the field of ophthalmology. With an impressive portfolio of 18 patents, Shimizu has been dedicated to developing innovative solutions that enhance eye care and elevate the standards of diagnostic tools used in the medical community.

Latest Patents

Among Shimizu's latest inventions are the non-contact ultrasonic ophthalmotonometer and the ultrasonic tonometer. The non-contact ultrasonic ophthalmotonometer employs a Langevin transducer to measure the eye pressure of an examinee’s eye using ultrasound technology. This innovative design incorporates ultrasonic generating means and a support base to ensure effective application during examinations.

The ultrasonic tonometer, another of his key inventions, utilizes an ultrasonic actuator equipped with an ultrasonic element, allowing for precise measurement of eye pressure through controlled sound waves. This device aims to address common challenges in eye examinations, ensuring that the ultrasonic wave is effectively applied, which enhances diagnostic accuracy.

Career Highlights

Kazunari Shimizu has made notable advancements while working at Nidek Co., Ltd., a leader in the field of ophthalmic equipment. His commitment to research and development has played a crucial role in the advancement of non-invasive techniques for measuring eye pressure, contributing to improved patient comfort and diagnostics.

Collaborations

Throughout his career, Shimizu has had the privilege of collaborating with talented colleagues, including Shirohisa Kobayashi and Kenji Nakamura. These partnerships have fostered a creative environment that propels innovation, allowing Shimizu and his team to explore new possibilities in ophthalmic technology.

Conclusion

Kazunari Shimizu exemplifies the spirit of innovation in the medical device industry. His expertise and creativity have led to groundbreaking patents that advance eye care technology, ensuring a brighter future for patients worldwide. Through his ongoing work and collaborations, Shimizu continues to inspire future generations of inventors in the field of healthcare 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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