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Hitachi-Johnson Controls Air Conditioning, Inc.

USPTO Granted Patents = 95

% Expired Patents = 1.1

EPO Patents = 69

Trademarks = 18

Forward Citations = 217

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187 inventors (with patents filed for the assignee):

Koji Naito (18 out of 22 patents)

Kazumoto Urata (9 out of 24 patents)

Masayoshi Murofushi (9 out of 10 patents)

4. Atsuhiko Yokozeki (8 out of 9 patents)

5. Kazuhiko Tani (7 out of 8 patents)

6. Mikihito Tokudi (6 out of 6 patents)

7. Shuntaro Inoue (6 out of 7 patents)

8. Kunihito Kawamura (5 out of 7 patents)

9. Hiroaki Tsuboe (5 out of 6 patents)

10. Mamoru Houfuku (4 out of 5 patents)

11. Katsuaki Nagahashi (4 out of 4 patents)

12. Ryoichi Takafuji (4 out of 4 patents)

13. Gen Yasuda (4 out of 4 patents)

14. Kazuhiro Tsuchihashi (4 out of 6 patents)

15. Hiroaki Kaneko (4 out of 41 patents)

Core Competencies:

Air Conditioner

Scroll Compressor

Heat Exchanger

Refrigeration Cycle

Predictive Refrigeration

Compressor Failure Detection

Outdoor Unit

Indoor Unit

Dynamic Radial Compliance

Inverter Device

Remote Controller

Cooling/Heating Switching

95 patents: Sort by Forward Citations

1. 12729689 - Compressor (2026-09-08),

2. 12540745 - Control device, heat exchange system, and recording medium recording program (2026-02-03),

3. 12339026 - Air-conditioner (2025-06-24),

4. 12025133 - Compressor and air-conditioner (2024-07-02),

5. 12000395 - Scroll compressor and refrigeration cycle device (2024-06-04),

6. 11890721 - Screw rotor processing method and screw rotor lead correction calculation device (2024-02-06),

7. 11592022 - Scroll compressor and refrigeration cycle device (2023-02-28),

8. 11555494 - Oldham coupling in co-rotating scroll compressors (2023-01-17),

9. 11542942 - Dynamic radial compliance in scroll compressors (2023-01-03),

10. 11408618 - Indoor unit of air-conditioner (2022-08-09),

11. 11402161 - Distributor, heat exchanger, indoor unit, outdoor unit, and air-conditioning device (2022-08-02),

12. 11280530 - Air conditioner provided with means for predicting and detecting failure in compressor and method for predicting and detecting the failure (2022-03-22),

13. 11280507 - Air-conditioner (2022-03-22),

14. 11274838 - Air-conditioner outdoor heat exchanger and air-conditioner including the same (2022-03-15),

15. 11236954 - Heat exchanger and air-conditioner (2022-02-01),

Company Overview

Hitachi-Johnson Controls Air Conditioning, Inc. specializes in advanced air conditioning technology, focusing on the development and manufacturing of high-efficiency air conditioning systems. The company is known for its innovative solutions in scroll compressors, heat exchangers, and predictive refrigeration technologies. With a commitment to enhancing indoor climate control, it integrates features such as compressor failure detection and optimized refrigeration cycles, catering to diverse residential and commercial needs from its headquarters in Tokyo, Japan.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

95 Patents

#559 in Tokyo

#1,155 in Japan

#8,111 in the World

Hitachi-Johnson Controls Air Conditioning, Inc.

Forward Citations = 217

187 inventors:

Koji Naito (18 out of 22 patents)

Kazumoto Urata (9 out of 24 patents)

Masayoshi Murofushi (9 out of 10 patents)

4. Atsuhiko Yokozeki (8 out of 9 patents)

5. Kazuhiko Tani (7 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hitachi-Johnson Controls Air Conditioning, Inc.. Retrieved from https://idiyas.com/company/hitachi-johnson-controls-air-conditioning

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

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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