Masao Ozu

This inventor holds 21 USPTO granted patents, primarily in Refrigeration Technology. Top assignees: Kabushiki Kaisha Toshiba, Tokyo Shibaura Denki Kabushiki Kaisha. Active years: 1982-2002.

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

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

USPTO Granted Patents = 21

% Patents Active = 95.2

Average Co-Inventor Count = 2.5

ph-index = 9

Forward Citations = 200(Granted Patents)

Location History:

Yokohama, JP (1994)
Kanagawa-ken, JP (1997 - 1998)
Fuji, JP (1982 - 2002)
Tokyo, JP (1998 - 2002)

Company Filing History:

16 out of 53,262

Kabushiki Kaisha Toshiba

patents

5 out of 2,916

Tokyo Shibaura Denki Kabushiki Kaisha

patents

Years Active: 1982-2002

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Areas of Expertise:

Helical Blade Compressor

Fluid Machine

Heat Pump

Air Conditioning System

Hermetic Compressor

Rolling-Piston Expander

Refrigeration Cycle

Rotary Compressor

Intermediate Heat Exchanger

Current Control Apparatus

Gaseous Refrigerant Bypass

Reversible Refrigeration Cycle

21 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6425744 - Helical blade type compressor having a helical blade in a stationary cylinder (2002-07-30),

2. 6338617 - Helical-blade fluid machine (2002-01-15),

3. 6162035 - Helical-blade fluid machine (2000-12-19),

4. 6089834 - Helical compressor and method of assembling the same (2000-07-18),

5. 5885062 - Switching valve fluid compressor and heat pump type refrigeration system (1999-03-23),

6. 5788470 - Fluid machine having two spiral working mechanisms with a stepped shape (1998-08-04),

7. 5784893 - Air conditioning system with built-in intermediate heat exchanger with (1998-07-28),

8. 5782622 - Hermetic compressor having a frame supporting the comprission mechanism (1998-07-21),

9. 5775883 - Rolling-piston expander apparatus (1998-07-07),

10. 5616019 - Rolling piston type expansion machine (1997-04-01),

11. 5297395 - Air conditioner using rotary-type heat exchangers (1994-03-29),

12. 5207071 - Current control apparatus for air-conditioning system (1993-05-04),

13. 4781542 - Hermetically-sealed compressor with motor (1988-11-01),

14. 4743177 - Enclosed type compressor and method for assembling the same (1988-05-10),

15. 4702088 - Compressor for reversible refrigeration cycle (1987-10-27),

Title: Masao Ozu - Innovative Inventor from Fuji

Introduction: Masao Ozu is a renowned inventor hailing from Fuji, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Masao Ozu holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous dedication to pushing the boundaries of technological advancement.

Career Highlights: With a career spanning over two decades, Masao Ozu has worked with leading research institutions and technology companies, where he has spearheaded projects that have revolutionized various industries.

Collaborations: Throughout his career, Masao Ozu has collaborated with top engineers, scientists, and inventors from around the world, fostering a culture of innovation and knowledge sharing that has led to numerous successful projects.

Conclusion: Masao Ozu's relentless pursuit of innovation and his passion for creating technology that makes a positive impact on society solidify his position as a visionary inventor in the global technological landscape.

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]