Tsuyoki Hirai

This inventor holds 11 USPTO granted patents and 4 published patent applications and 7 EPO patents. Top assignees: Panasonic Intellectual Property Management Co., Ltd., Panasonic Corporation, Polymatech Japan Co., Ltd.. Active years: 2017-2025.

USPTO Granted Patents = 11 (Patent Applications = 4)

% Patents Active = 81.8

EPO Patents = 7 (Patent Applications = 10)

Average Co-Inventor Count = 2.6

ph-index = 2

Forward Citations = 10(Granted Patents)

Location History:

Osaka, JP (2017)
Shiga, JP (2018 - 2024)

Company Filing History:

10 out of 13,338

Panasonic Intellectual Property Management Co., Ltd.

patents

1 out of 16,454

Panasonic Corporation

patents

1 out of 8

Polymatech Japan Co., Ltd.

patents

where one patent can have more than one assignee

Years Active: 2017-2025

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11 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12422184 - Refrigerator (2025-09-23),

2. 12215920 - Heating device and refrigerator equipped with heating device (2025-02-04),

3. 12130075 - Refrigerator comprising a dielectric heating mechanism (2024-10-29),

4. 11933537 - Refrigerator (2024-03-19),

5. 11573044 - Refrigerator (2023-02-07),

6. 10781963 - Heat-insulating wall, and heat-insulating housing and method for producing the same (2020-09-22),

7. 10539265 - Vacuum heat insulator, heat insulation device provided with same, and method for manufacturing vacuum heat insulator (2020-01-21),

8. 10456962 - Heat-insulating wall, and heat-insulating housing and method for producing the same (2019-10-29),

9. 10253919 - Vacuum heat insulation body (2019-04-09),

10. 10030805 - Heat-insulating wall, and heat-insulating housing and method for producing the same (2018-07-24),

11. 9695903 - Damper for compressor of cooling apparatus and refrigerator (2017-07-04),

Title: Tsuyoki Hirai: Innovator in Refrigeration Technology

Introduction

Tsuyoki Hirai is a prominent inventor based in Shiga, Japan. He has made significant contributions to the field of refrigeration technology, holding a total of 11 patents. His innovative designs focus on enhancing the efficiency and functionality of refrigeration systems.

Latest Patents

Hirai's latest patents include a sophisticated refrigerator that features a storage chamber designed for preserving products. This refrigerator incorporates a power supply unit, an oscillation circuit, and a matching unit that optimizes impedance. The power supply unit is equipped with multiple components that convert alternating current into direct current and manage voltage outputs. Additionally, he has developed a heating device that ensures uniform heating of objects, allowing frozen products to be thawed effectively while maintaining quality.

Career Highlights

Throughout his career, Tsuyoki Hirai has worked with notable companies such as Panasonic Intellectual Property Management Co., Ltd. and Panasonic Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in refrigeration technology.

Collaborations

Hirai has collaborated with esteemed colleagues, including Kiyoshi Mori and Kei Nambu. These partnerships have fostered a creative environment that has led to the development of advanced technologies in their field.

Conclusion

Tsuyoki Hirai's contributions to refrigeration technology exemplify his dedication to innovation and excellence. His patents reflect a commitment to improving the efficiency and safety of refrigeration systems.