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Hitachi Appliances, Inc

USPTO Granted Patents = 48

EPO Patents = 10

Forward Citations = 330

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109 inventors (with patents filed for the assignee):

Mutsunori Matsunaga (13 out of 24 patents)

Takeshi Tsuchiya (8 out of 31 patents)

Kenji Tojo (8 out of 54 patents)

4. Satoshi Nakamura (8 out of 9 patents)

5. Masatsugu Chikano (7 out of 10 patents)

6. Tomio Yoshikawa (7 out of 7 patents)

7. Satoshi Kikuchi (7 out of 40 patents)

8. Baiying Huang (6 out of 6 patents)

9. Haruo Koharagi (6 out of 34 patents)

10. Yuuichi Yanagase (5 out of 17 patents)

11. Masashi Miyake (5 out of 8 patents)

12. Akeshi Takahashi (5 out of 6 patents)

13. Masaru Ohtahara (4 out of 8 patents)

14. Zhuonan Wang (4 out of 8 patents)

15. Yuji Enomoto (4 out of 66 patents)

Core Competencies:

Power Monitoring Device

Air-Conditioning Control

Scroll Compressor

Hermetically Sealed Compressor

Permanent Magnet Synchronous Motor

Heat Pump Hot Water Supply

Refrigerating Apparatus

Vacuum Insulation Panel

Axial Gap Rotating Electrical Machine

Displacement Type Compressor

Ice Supplying Apparatus

Motor Driving Module

48 patents: Sort by Forward Citations

1. 9766679 - Power monitoring device and power monitoring system (2017-09-19),

2. 9651272 - Air-conditioning control system and air-conditioning control method (2017-05-16),

3. 9353751 - Sealed scroll compressor for helium (2016-05-31),

4. 9239053 - Hermetically sealed scroll compressor (2016-01-19),

5. 9181945 - Scroll compressor with channels intermittently communicating internal and external compression chambers with back pressure chamber (2015-11-10),

6. 9169840 - Piston operated bypass valve for a screw compressor (2015-10-27),

7. 9091266 - Scroll compressor having a back pressure control valve for opening and closing a communication path in a stationary scroll (2015-07-28),

8. 9010281 - Hot water supply system (2015-04-21),

9. 8992188 - Revolution type compressor (2015-03-31),

10. 8937422 - Magnetic iron core, method for manufacturing the same, axial-gap rotating electrical machine, and static electrical machine (2015-01-20),

11. 8888476 - Horizontal scroll compressor (2014-11-18),

12. 8888475 - Scroll compressor with oil supply across a sealing part (2014-11-18),

13. 8847534 - Converter, motor driving module, and refrigerating apparatus (2014-09-30),

14. 8836192 - Axial gap rotating electrical machine and rotor used therefor (2014-09-16),

15. 8786155 - Axial gap rotating electrical machine (2014-07-22),

Hitachi Appliances, Inc. is a leading multinational corporation specializing in the manufacturing of innovative and reliable home appliances. With a strong legacy in technological advancements, the company offers a diverse range of products including refrigerators, air conditioners, washing machines, and more. Committed to improving the quality of life for consumers worldwide, Hitachi Appliances continues to deliver cutting-edge solutions that combine efficiency, durability, and user-friendly features.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

48 Patents

#712 in Tokyo

#1,724 in Japan

#14,123 in the World

Hitachi Appliances, Inc

Forward Citations = 330

109 inventors:

Mutsunori Matsunaga (13 out of 24 patents)

Takeshi Tsuchiya (8 out of 31 patents)

Kenji Tojo (8 out of 54 patents)

4. Satoshi Nakamura (8 out of 9 patents)

5. Masatsugu Chikano (7 out of 10 patents)

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