Company Filing History:

11 out of 42,485

Hitachi, Ltd.

patents

1 out of 1,037

Agency of Industrial Science and Technology

patents

Years Active: 1981-1996

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12 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5517830 - Multiple type absorption air conditioning system (1996-05-21),

2. 5447042 - Multiple type absorption air conditioning system (1995-09-05),

3. 5282369 - Multiple type absorption air conditioning system (1994-02-01),

4. 5218844 - Absorption heat pump apparatus with indoor and outdoor heat exchangers (1993-06-15),

5. 5205137 - Absorption air conditioner (1993-04-27),

6. 5048308 - Absorption refrigerator (1991-09-17),

7. 4935037 - Fuel reforming apparatus (1990-06-19),

8. 4861348 - Fuel reforming apparatus (1989-08-29),

9. 4820594 - Method of starting fuel cell power generation system (1989-04-11),

10. 4546608 - Thermo-siphon type generator apparatus (1985-10-15),

11. 4424770 - Low boiling point medium evaporator (1984-01-10),

12. 4275563 - Power-generating plant having increased circulating force of working (1981-06-30),

Title: The Innovations of Seiichiro Sakaguchi

Introduction

Seiichiro Sakaguchi is a prominent inventor based in Ibaraki, Japan. He has made significant contributions to the field of air conditioning technology, holding a total of 12 patents. His work focuses on enhancing the efficiency and safety of multiple type absorption air conditioning systems.

Latest Patents

One of his latest patents is a multiple type absorption air conditioning system that increases the capacity control range of an interior unit. This innovation allows for the easy and safe operation of turning on and off cooling and heating functions, as well as switching between them. The system reserves a liquid refrigerant in an absorption cool/warm water unit, which is connected to the interior unit via a communication device. The operation of the cool/warm water unit is automatically controlled by an operation control device, simplifying the process and improving safety.

Career Highlights

Throughout his career, Seiichiro Sakaguchi has worked with notable companies such as Hitachi, Ltd. and the Agency of Industrial Science and Technology. His experience in these organizations has contributed to his expertise in developing innovative air conditioning solutions.

Collaborations

Seiichiro has collaborated with several talented individuals in his field, including Tomihisa Ohuchi and Daisuke Hisajima. Their teamwork has played a crucial role in advancing the technology behind air conditioning systems.

Conclusion

Seiichiro Sakaguchi's contributions to air conditioning technology through his patents and collaborations highlight his innovative spirit and dedication to improving efficiency and safety in this essential field. His work continues to influence the industry and inspire future advancements.

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