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Tsutomu Igarashi

This inventor holds 34 USPTO granted patents and 1 EPO patent, primarily in Endoscope Optical Systems. Top assignees: Olympus Optical Company, Ltd., Olympus Corporation, Olympus Medical Systems Corporation. Active years: 1990-2025.

USPTO Granted Patents = 34

% Patents Active = 94.1

EPO Patents = 1

Average Co-Inventor Count = 1.2

ph-index = 16

Forward Citations = 1,019(Granted Patents)

Location History:

Hachiouji, JP (1990 - 2005)
Hachioji, JP (1992 - 2021)
Tokyo, JP (1990 - 2022)

Company Filing History:

19 out of 5,729

Olympus Optical Company, Ltd.

Olympus Medical Systems Corporation

patents

4. 1 out of 1

Shuetsutechnica Co., Ltd.

patent

Years Active: 1990-2025

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Areas of Expertise:

Endoscope

Optical System

Illumination

Image Pickup

Objective Lens

Stereo Endoscope

Rigid Endoscope

Non-Flexible Endoscope

Field Conversion

Photographing Device

Moving Body

Air Filter

34 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12213647 - Objective optical system, image pickup apparatus, and endoscope (2025-02-04),

2. 11234580 - Endoscope illuminating optical system (2022-02-01),

3. 11119306 - Image pickup optical system, endoscope, and image pickup apparatus (2021-09-14),

4. 10782511 - Objective optical system, endoscope, and endoscope system (2020-09-22),

5. 10356294 - Photographing device, moving body for photographing, and photographing control apparatus for moving body (2019-07-16),

6. 10307044 - Endoscope illuminating optical system (2019-06-04),

7. 9804380 - Endoscope objective optical system (2017-10-31),

8. 9622652 - Endoscope objective optical system (2017-04-18),

9. 8976468 - Endoscope objective optical system (2015-03-10),

10. 8715170 - Objective optical system for endoscope (2014-05-06),

11. 7738180 - Objective optical system for endoscopes (2010-06-15),

12. 7678045 - Endoscope optical system (2010-03-16),

13. 7466490 - Objective optical system for an endoscope (2008-12-16),

14. 6898022 - Stereo optical system pair for stereo endoscope system (2005-05-24),

15. 6866693 - Washable air filter for internal combustion engine (2005-03-15),

Title: Tsutomu Igarashi - Pioneering Inventor from Hachioji

Introduction: Tsutomu Igarashi is a renowned inventor hailing from Hachioji, Japan. With a passion for innovation and a keen eye for detail, he has made significant contributions to the field of technology through his groundbreaking inventions.

Latest Patents: Tsutomu Igarashi holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies. His most recent patents focus on enhancing efficiency in industrial processes and improving sustainability in manufacturing.

Career Highlights: Throughout his illustrious career, Tsutomu Igarashi has worked with leading tech companies in Japan, spearheading research and development projects that have led to cutting-edge inventions. His expertise in mechatronics and automation has revolutionized various industries.

Collaborations: Tsutomu Igarashi has collaborated with top research institutions and universities in Japan to further his innovative projects. His partnerships with fellow inventors and engineers have resulted in the successful implementation of novel technologies in real-world applications.

Conclusion: In conclusion, Tsutomu Igarashi's dedication to pushing the boundaries of technological advancement has solidified his reputation as a visionary inventor. His relentless pursuit of innovation continues to inspire the next generation of inventors worldwide.

Profile summary based on public USPTO records.

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