Toyokawa, Japan

Akihiro Hayashi

This inventor holds 26 USPTO granted patents and 3 EPO patents, primarily in Ophthalmic Devices. Top assignees: Nidek Co., Ltd., Nidek Corporation. Active years: 1993-2010.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Akihiro Hayashi. Retrieved from https://idiyas.com/inventor/akihiro-hayashi

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

Calculating rank

% Patents Active = 80.8


Average Co-Inventor Count = 2.0

ph-index = 9

Forward Citations = 189(Granted Patents)


Location History:

  • Aichi, JP (1999 - 2001)
  • Toyokawa, JP (1993 - 2010)

Company Filing History:


Years Active: 1993-2010

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Areas of Expertise:
Ophthalmic Apparatus
Optometric Apparatus
Visual Function Test
Lens Meter
Visual Acuity Examination
Ocular Examination
Spectacles Device
Cornea Measurement
Binocular Fixation
Refractive Power Inspection
Adjustable Mirror Test
Power Mode Apparatus
26 patents (USPTO):Explore Patents

Title: Innovations by Akihiro Hayashi: Advancements in Ophthalmic and Optometric Apparatuses

Introduction: Akihiro Hayashi, an accomplished inventor based in Toyokawa, Japan, has made significant contributions to the field of ophthalmic technology. With 26 patents to his name, Hayashi's work reflects a commitment to enhancing the efficiency and precision of eye examinations through innovative devices.

Latest Patents: Among his latest inventions, Hayashi has developed an ophthalmic apparatus designed for the efficient measurement of multiple eye characteristics. This apparatus features two distinct measurement units, each capable of assessing different eye attributes while employing a movement mechanism for precision alignment. Additionally, he has created an advanced optometric apparatus that allows for subjective examination of an examinee's refractive power. This device utilizes a combination of spherical and cylindrical power application units, ensuring a highly-accurate examination process.

Career Highlights: Hayashi has had a notable career, most prominently with Nidek Co., Ltd. and Nidek Corporation. His innovative spirit and expertise in ophthalmic devices have positioned him as a key figure in the development of modern optometric tools that enhance diagnostic capabilities in eye care.

Collaborations: Throughout his career, Hayashi has collaborated with renowned peers such as Yoshinobu Hosoi and Kazuhiro Yoshimura. These partnerships have fostered a creative environment that has led to groundbreaking advancements in ophthalmic technology.

Conclusion: Akihiro Hayashi's impressive portfolio of patents and his contributions to the field of ophthalmic and optometric devices underscore his role as a pioneer in eye examination technology. His relentless pursuit of innovation continues to benefit the medical community and improve patient care.

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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