Himeji, Japan

Tatsushi Igarashi

This inventor holds 23 USPTO granted patents and 6 published patent applications and 2 EPO patents, primarily in Microbe Inactivation Technology. Top assignees: Ushio Denki Kabushiki Kaisha, Kabushiki Kaisha Nikon. Active years: 1985-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tatsushi Igarashi. Retrieved from https://idiyas.com/inventor/tatsushi-igarashi

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

USPTO Granted Patents = 23 

% Patents Active = 100.0

 

Average Co-Inventor Count = 2.4

ph-index = 9

Forward Citations = 176(Granted Patents)


Location History:

  • Hyogo, JP (1985)
  • Hyogoken, JP (1995 - 1998)
  • Himeji, JP (1995 - 1999)
  • Tokyo, JP (1999 - 2024)

Company Filing History:


Years Active: 1985-2025

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Areas of Expertise:
Optical Filter
Microbe Inactivation
Sterilizing Device
Dielectric Barrier Discharge
Metal Halide Lamp
UV Emission
Discharge Lamp
Halogen Lamp
Light Source Device
Cadmium Lamp
Radiant Heating Furnace
Foil Trap
23 patents (USPTO):Explore Patents

Title: Innovations by Tatsushi Igarashi in Sterilization and Microbe Processing

Introduction

Tatsushi Igarashi, an accomplished inventor based in Himeji, Japan, holds an impressive portfolio of 22 patents. His innovative work primarily focuses on the fields of sterilization devices and microbe processing methods, paving the way for advancements in healthcare technologies.

Latest Patents

Among his notable inventions are his latest patents, including a dry sterilizing device and a dry sterilizing method. The sterilizing device features a housing with an opening, which allows for the insertion of an object, including parts of the human body, into a hollow portion. This device incorporates air blower units that direct airflow into the hollow section and ultraviolet light emitting units designed to emit ultraviolet light within specific wavelengths—between 190 nm and 230 nm, alongside wavelengths between 230 nm and 237 nm.

Additionally, Igarashi has developed a microbe inactivation processing method and a cell activation processing method. These methods are designed to efficiently inactivate microbes while minimizing damage to human body cells. The microbe inactivation processing method employs light emitted from a light source, coupled with an optical filter, to strategically perform inactivation processing on target microbes.

Career Highlights

Igarashi has built a robust career through his affiliations with companies like Ushio Denki Kabushiki Kaisha and Nikon Corporation. His professional journey reflects a commitment to enhancing medical technologies, particularly through sterilization and microbial control.

Collaborations

Throughout his career, Igarashi has collaborated with talented individuals such as Hiromitsu Matsuno and Tatsumi Hiramoto. These collaborations have played a crucial role in his innovative pursuits, contributing to remarkable advancements in the field.

Conclusion

Tatsushi Igarashi's inventive contributions to the sterilization and microbe processing landscape underscore the significance of his work in improving health and safety standards. With a growing patent portfolio and a strong commitment to innovation, Igarashi continues to impact various sectors in meaningful and transformative ways.

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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