Germantown, TN, United States of America

Masao Tsuji

This inventor holds 83 USPTO granted patents, primarily in Ceiling Fan Technology (CPC class D23411). Top assignee: Hunter Fan Compnay. Active years: 1994-2011.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masao Tsuji. Retrieved from https://idiyas.com/inventor/masao-tsuji

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

Calculating rank

USPTO Granted Patents = 83

% Patents Active = 95.2

Average Co-Inventor Count = 1.3

ph-index = 21

Forward Citations = 1,485(Granted Patents)

Forward Citations (Not Self Cited) = 1,414(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Germantown, TN (US) (1994 - 2004)
Mesa, AZ (US) (2005 - 2011)

Company Filing History:

83 out of 1,146

Hunter Fan Compnay

patents

Years Active: 1994-2011

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Areas of Expertise:

Ceiling Fan

Light Kit

Motor Housing

Blade Iron

Ventilation Fan

Air Purifier

Modular Assembly

Electric Motor

Portable Appliance

Combined Housing

Switch Housing

Light Fixture

83 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7914163 - Ventilation fan and light (2011-03-29),

2. 7717674 - Ceiling fan (2010-05-18),

3. D530032 - Ceiling fan light kit (2006-10-10),

4. 6902375 - Quick connect ceiling fan blade (2005-06-07),

5. D502917 - Motor (2005-03-15),

6. D490514 - Ceiling fan blade iron (2004-05-26),

7. D490513 - Ceiling fan motor housing (2004-05-26),

8. D481117 - Ceiling fan blade iron (2003-10-22),

9. D480795 - Ceiling fan light kit (2003-10-15),

10. D480470 - Ceiling fan light kit (2003-10-08),

11. 6520739 - Ceiling fan with light assembly (2003-02-18),

12. D464423 - Combined ceiling fan housing and light kit (2002-10-16),

13. 6450658 - Ceiling fan with light assembly (2002-09-17),

14. 6450436 - Portable electric appliance with cord holder (2002-09-17),

15. D451182 - Air purifier (2001-11-28),

Title: The Inventor Spotlight: Masao Tsuji

Introduction: Masao Tsuji, a prolific inventor based in Germantown, TN, US, has made significant contributions to the world of innovations with over 82 patents to his name. His latest patents showcase his ingenuity in creating unique solutions for everyday needs.

Latest Patents:

1. Ventilation fan and light: Masao Tsuji's design combines a ventilation fan and light seamlessly, providing not only efficient ventilation but also aesthetically pleasing lighting features. The innovative design hides the air intake ports within decorative features, enhancing the airflow and visual appeal of the room.

2. Ceiling fan: Tsuji's ceiling fan design not only ensures optimal air circulation but also adds a touch of elegance with a shroud that conceals the motor and blades. The incorporation of flickering wicks through incandescent bulbs adds a charming ambiance to any space.

Career Highlights: Masao Tsuji's remarkable career is marked by a steadfast dedication to pushing the boundaries of invention. Working at Hunter Fan Company, he has consistently delivered groundbreaking solutions that improve the quality of life for many.

Collaborations: Throughout his career, Masao Tsuji has collaborated with esteemed colleagues such as Jack W. Gee, II, and Richard A. Pearce. Together, they have shared their expertise and creativity to bring forth innovative products that have redefined the industry.

Conclusion: Masao Tsuji's impressive portfolio of patents and his commitment to excellence exemplify the transformative power of innovation. His contributions stand as a testament to the endless possibilities that arise when passion and ingenuity converge.

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]