Company Filing History:

16 out of 42,485

Hitachi, Ltd.

where one patent can have more than one assignee

Years Active: 1985-2001

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16 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6247331 - Absorption refrigerator and the method of producing the same (2001-06-19),

2. 6233968 - Absorption refrigerating machine (2001-05-22),

3. 6122930 - Absorption refrigerating machine (2000-09-26),

4. 5577555 - Heat exchanger (1996-11-26),

5. 5517830 - Multiple type absorption air conditioning system (1996-05-21),

6. 5447042 - Multiple type absorption air conditioning system (1995-09-05),

7. 5435154 - High temperature regenerator of an absorption type hot and cold water (1995-07-25),

8. 5289868 - Absorption chiller heater and unit-type air conditioning system (1994-03-01),

9. 5282369 - Multiple type absorption air conditioning system (1994-02-01),

10. 5275010 - Control method and apparatus of absorption chiller heater (1994-01-04),

11. 5259202 - Absorption air-conditioning system (1993-11-09),

12. 5218844 - Absorption heat pump apparatus with indoor and outdoor heat exchangers (1993-06-15),

13. 5205137 - Absorption air conditioner (1993-04-27),

14. 5156203 - Air conditioning system (1992-10-20),

15. 4520634 - Multi-stage absorption refrigeration system (1985-06-04),

Title: Akira Nishiguchi: Innovator in Absorption Refrigeration Technology

Introduction

Akira Nishiguchi is a prominent inventor from Ushiku, Japan, renowned for his significant contributions to the field of refrigeration technology. With a total of 16 patents to his name, Nishiguchi has pioneered advancements that enhance the efficiency of absorption refrigeration systems. His work reflects a deep understanding of thermodynamic principles and a commitment to innovation in energy-efficient solutions.

Latest Patents

Among his latest patents, Nishiguchi's absorption refrigerator and method of producing the same stand out. This inventive system involves a series of processes where refrigerant vapor generated in a high-temperature regenerator is condensed in a condenser. The condensed refrigerant liquid is then conducted to a first evaporator, where it evaporates and is subsequently absorbed in a solution in the first absorber. The process continues with the refrigerant liquid introduced to the second evaporator, which also has a first absorber, creating an efficient two-stage absorption refrigeration machine. This innovation not only increases efficiency but also reduces energy consumption, showcasing Nishiguchi’s forward-thinking approach.

Career Highlights

Throughout his career, Akira Nishiguchi has made substantial contributions while working at notable companies such as Hitachi, Ltd. and Hitachi Cable, Inc. His role in these organizations has allowed him to refine his skills and push the boundaries of refrigeration technology. The impact of his inventions has been felt across various sectors, particularly in energy management and appliance manufacturing.

Collaborations

Collaboration has been a key aspect of Nishiguchi's innovative journey. Some of his notable coworkers include Tomihisa Ohuchi and Daisuke Hisajima. Working alongside talented individuals has undoubtedly helped Nishiguchi in refining his ideas and bringing valuable inventions to fruition.

Conclusion

In summary, Akira Nishiguchi exemplifies the spirit of innovation through his extensive work in absorption refrigeration technologies. His patents reflect a commitment to improving energy efficiency and advancing the field, making significant contributions that will benefit many industries. As refrigeration technology continues to evolve, the impact of Nishiguchi’s innovations will surely keep inspiring future inventors.

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