Company Filing History:

9 out of 596

Diesel Kiki Co., Ltd.

patents

1 out of 15

Diesel Kiki Kabushiki Kaisha

patents

1 out of 13,398

Nissan Motor Company Limited

patents

where one patent can have more than one assignee

Years Active: 1981-1989

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10 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4830590 - Sliding-vane rotary compressor (1989-05-16),

2. 4761967 - Car air conditioner with heat storage tank for cooling energy (1988-08-09),

3. 4743184 - Rotary compressor with heating passage between discharge chamber and (1988-05-10),

4. 4677830 - Air conditioning system for automotive vehicles (1987-07-07),

5. 4596518 - Swash-plate type compressor (1986-06-24),

6. 4583922 - Swash plate type compressor improved with elongated and tortuous input (1986-04-22),

7. 4580950 - Sliding-vane rotary compressor for automotive air conditioner (1986-04-08),

8. 4383642 - Heater unit for use in an air conditioner for automotive vehicles (1983-05-17),

9. 4340112 - Vehicle air temperature control apparatus (1982-07-20),

10. 4266604 - Heat exchanger with fluid tanks made of synthetic resin (1981-05-12),

Title: Seiji Sumikawa: Innovator in Rotary Compressor Technology

Introduction

Seiji Sumikawa is a prominent inventor based in Konan, Japan, known for his significant contributions to the field of rotary compressor technology. With a total of 10 patents to his name, Sumikawa has developed innovative solutions that enhance the efficiency and functionality of air conditioning systems in vehicles.

Latest Patents

Among his latest patents is the "Sliding-vane rotary compressor," which features a unique design that includes a partition wall separating an oil sump from a low-pressure chamber. This design improves the compressor's performance by ensuring efficient oil management. Another notable invention is the "Car air conditioner with heat storage tank for cooling energy." This air conditioning system utilizes a thermal storage tank to store cooling energy, allowing for effective temperature regulation within the vehicle. The system operates based on temperature sensors that monitor conditions inside and outside the car, ensuring optimal performance.

Career Highlights

Throughout his career, Seiji Sumikawa has worked with reputable companies such as Diesel Kiki Co., Ltd. and Diesel Kiki Kabushiki Kaisha. His experience in these organizations has allowed him to refine his skills and contribute to advancements in automotive technology.

Collaborations

Some of his notable coworkers include Shinji Sutoh and Yoichiro Furuya, who have collaborated with him on various projects, further enhancing the innovative capabilities of their teams.

Conclusion

Seiji Sumikawa's work in rotary compressor technology and automotive air conditioning systems showcases his dedication to innovation and efficiency. His patents reflect a commitment to improving vehicle performance and comfort, making him a significant figure in the field of engineering.

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Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.