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For the Inventor, By the Inventor

Tokyo, Japan

Toshiba Carrier Corporation

Calculating rank
USPTO Granted Patents = 112

% Expired Patents = 18.8


Trademarks = 9

Forward Citations = 987

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179 inventors (with patents filed for the assignee):

goldMedal Takuya Hirayama (14 out of 29 patents)

silverMedal Masao Isshiki (7 out of 7 patents)

bronzeMedal Kazu Takashima (6 out of 7 patents)

4.  Toshimasa Aoki (5 out of 5 patents)

5.  Kenji Gajina (5 out of 6 patents)

6.  Isao Kawabe (5 out of 8 patents)

7.  Toshihiko Futami (5 out of 11 patents)

8.  Hidemitsu Kawai (5 out of 6 patents)

9.  Tetsuya Ishikawa (4 out of 6 patents)

10.  Hideki Tanno (4 out of 4 patents)

11.  Kenjiro Matsumoto (4 out of 5 patents)

12.  Keiichi Hasegawa (4 out of 4 patents)

13.  Izumi Onoda (4 out of 9 patents)

14.  Kiyotaka Kawamura (4 out of 5 patents)

15.  Yoshiaki Inaba (4 out of 5 patents)


Core Competencies:
Air Conditioner
Rotary Compressor
Refrigeration Cycle
Heat Exchanger
Refrigerant Leak Detector
Chiller Unit
Communication System
Centrifugal Fan
Power Supply
Management Device
Hermetic Compressor
Control Device

112 patents:

1. D1120260 - Outdoor unit of air conditioner (2026-03-24),
2. D1118873 - Chiller unit (2026-03-17),
3. D1118872 - Chiller unit (2026-03-17),
4. 12492943 - Generation device, generation system, processing system, generation method, and storage medium (2025-12-09),
5. 12480523 - Centrifugal fan (2025-11-25),
6. 12258976 - Axial fan (2025-03-25),
7. 12025130 - Rotary compressor and refrigeration cycle apparatus (2024-07-02),
8. 12001195 - State evaluation system, state evaluation apparatus, and state evaluation method (2024-06-04),
9. 11971201 - Compressor and refrigeration cycle device (2024-04-30),
10. 11954054 - Communication system, slave unit used for communication system, and communication method (2024-04-09),
11. D1016264 - Outdoor unit of air conditioner (2024-02-27),
12. D1015183 - Refrigerant leak detector (2024-02-20),
13. 11892186 - Detection device (2024-02-06),
14. 11859844 - Air conditioner management device, and air conditioner management screen generation method (2024-01-02),
15. 11821664 - Rotary compressor and refrigeration cycle apparatus (2023-11-21),
Company Overview
Toshiba Carrier Corporation, headquartered in Tokyo, specializes in advanced air conditioning technology, focusing on the development and manufacturing of energy-efficient climate control solutions. The company is recognized for its expertise in rotary compressors, refrigeration cycles, and heat exchangers, contributing to innovative products like chiller units and refrigerant leak detectors. With a commitment to sustainability, Toshiba Carrier integrates communication systems and centrifugal fans into its offerings, enhancing performance and reliability in various applications across diverse markets.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

112 Patents

#511 in Tokyo

#1,050 in Japan

#7,063 in the World

Tokyo, JP
Tokyo, Japan

Toshiba Carrier Corporation

Forward Citations = 987

179 inventors:

goldMedal Takuya Hirayama (14 out of 29 patents)

silverMedal Masao Isshiki (7 out of 7 patents)

bronzeMedal Kazu Takashima (6 out of 7 patents)

4.  Toshimasa Aoki (5 out of 5 patents)

5.  Kenji Gajina (5 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Toshiba Carrier Corporation. Retrieved from https://idiyas.com/company/toshiba-carrier

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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