Company Filing History:

12 out of 42,485

Hitachi, Ltd.

patents

1 out of 222

Babcock-hitachi Kabushiki Kaisha

where one patent can have more than one assignee

Years Active: 1976-1997

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12 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5676713 - Method of fuel gasification and an apparatus for performing such a method (1997-10-14),

2. 4671069 - Combustor for gas turbine (1987-06-09),

3. 4587809 - Premixing swirling burner (1986-05-13),

4. 4472936 - Method and apparatus for controlling combustion of gasified fuel (1984-09-25),

5. 4429538 - Gas turbine combustor (1984-02-07),

6. 4326666 - Centrifugal type counterflow contact apparatus (1982-04-27),

7. 4273749 - Refining process of hot gas containing hydrogen sulfide and ammonia (1981-06-16),

8. 4233275 - Process and apparatus for purifying raw coal gas (1980-11-11),

9. 4142581 - Tube-hole structure for expanded tube-to-tube-sheet joint (1979-03-06),

10. 4003711 - Apparatus for elimination of nitrogen oxides from combustion waste gases (1977-01-18),

11. 3981972 - Method for desulfurizing flue gas by active carbon suspension (1976-09-21),

12. 3980454 - Adsorption method (1976-09-14),

Title: Zensuke Tamura: Innovator in Fuel Gasification and Combustion Technology

Introduction

Zensuke Tamura is a prominent inventor based in Hitachi, Japan, known for his significant contributions to fuel gasification and combustion technology. With a total of 12 patents to his name, Tamura has made remarkable advancements in the efficiency and effectiveness of energy production processes.

Latest Patents

One of Tamura's latest patents is a method of fuel gasification and an apparatus for performing such a method. In this innovative process, particles of coal and an oxidant are supplied to a reactor, where the coal particles undergo gasification. The resulting gas may contain molten slag, which can solidify and impact the performance of the coal gasification apparatus. To address this issue, Tamura designed a molten slag cooling heat exchanger positioned directly above the reactor. This exchanger cools the gas, allowing any molten slag to solidify before it reaches the evaporator, thus maintaining the evaporator's efficiency. Additionally, the rate of coolant supplied to the cooling heat exchanger is varied to dislodge any solidified slag, ensuring optimal performance. Another notable patent is for a combustor for gas turbines, where a premixture of compressed air and gaseous fuel is combusted in a head combustion chamber, followed by main combustion in a rear chamber. This design minimizes high flame temperatures that can lead to NOx generation.

Career Highlights

Throughout his career, Zensuke Tamura has worked with notable companies such as Hitachi, Ltd. and Babcock-Hitachi Kabushiki Kaisha. His experience in these organizations has allowed him to develop and refine his innovative technologies, contributing to advancements in energy efficiency and environmental sustainability.

Collaborations

Tamura has collaborated with esteemed colleagues, including Takashi Ohmori and Isao Sato, to further enhance his research and development efforts. Their combined expertise has played a crucial role in the success of his projects.

Conclusion

Zensuke Tamura's work in fuel gasification and combustion technology exemplifies the impact of innovation on energy production. His patents reflect a commitment to improving efficiency and reducing environmental impact in the energy sector.

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