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For the Inventor, By the Inventor

Ryugasaki, Japan

Hiroaki Matsushima

USPTO Granted Patents = 14 

Average Co-Inventor Count = 4.6

ph-index = 9

Forward Citations = 279(Granted Patents)


Location History:

  • Yokohama, JP (1987)
  • Ryugasaki, JP (1992 - 2011)
  • Seika, JP (2015)
  • Souraku-gun, JP (2016 - 2017)

Company Filing History:

goldMedal14 out of 42,485 
 
Hitachi, Ltd.
 patents

Years Active: 1987-2017

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14 patents (USPTO):
1. 9573437 - Vehicular air conditioning system (2017-02-21),
2. 9481226 - Vehicular air-conditioning system including a temperature-dependent control cycle (2016-11-01),
3. 8973387 - Vehicular air conditioning system (2015-03-10),
4. 7954661 - Transport container, transporting method for the same, and constant temperature transport container (2011-06-07),
5. 7412846 - Isothermal transportation container (2008-08-19),
6. 5946939 - Refrigerator and condenser (1999-09-07),
7. 5768902 - Refrigeration cycle and method of controlling the same (1998-06-23),
8. 5694779 - Refrigerator and condenser (1997-12-09),
9. 5651263 - Refrigeration cycle and method of controlling the same (1997-07-29),
10. 5542271 - Air-conditioner employing non-azeotrope refrigerant (1996-08-06),
11. 5353604 - Refrigeration cycle (1994-10-11),
12. 5181392 - Air conditioner and heat exchanger used therein (1993-01-26),
13. 5156203 - Air conditioning system (1992-10-20),
14. 4638643 - Control system for compressor motor used with air-conditioning unit (1987-01-27),

Title: Innovations by Hiroaki Matsushima in Vehicular Air Conditioning Systems

Introduction

Hiroaki Matsushima is a prominent inventor based in Ryugasaki, Japan, known for his significant contributions to the field of vehicular air conditioning systems. With a total of 14 patents to his name, Matsushima has developed innovative technologies that enhance energy efficiency and improve vehicle comfort.

Latest Patents

Matsushima's latest patents include a vehicular air conditioning system designed to save energy. This system features a first indoor cooling heat exchanger that cools the air within or outside a vehicle. It also includes an indoor air conditioning heat exchanger that regulates the temperature of the air, a refrigeration cycle connected to the indoor air conditioning heat exchanger, and a heating element mounted in the vehicle. The design allows for a unique air flow path that merges two flow paths, enabling efficient temperature control.

Another notable patent is a vehicular air-conditioning system that incorporates a temperature-dependent control cycle. This system includes a vehicle interior air-conditioning apparatus with a device cooling circuit and a refrigeration cycle circuit. An intermediate heat exchanger facilitates heat exchange between the cooling mediums, while a vehicle control apparatus determines the temperature of the cooling medium and adjusts the control cycle timing accordingly.

Career Highlights

Matsushima is currently employed at Hitachi, Ltd., where he continues to innovate and develop advanced technologies in the automotive sector. His work has significantly impacted the efficiency and functionality of vehicular air conditioning systems.

Collaborations

Throughout his career, Matsushima has collaborated with notable colleagues, including Kazuhiro Endoh and Sachio Sekiya. These collaborations have contributed to the advancement of technology in the automotive industry.

Conclusion

Hiroaki Matsushima's innovative work in vehicular air conditioning systems showcases his commitment to enhancing energy efficiency and vehicle comfort. His contributions through multiple patents reflect his expertise and dedication to the field.

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