Company Filing History:

9 out of 42,485

Hitachi, Ltd.

patents

4 out of 222

Babcock-hitachi Kabushiki Kaisha

where one patent can have more than one assignee

Years Active: 1977-1984

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10 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4456528 - Process for removing ash from coal (1984-06-26),

2. 4427642 - Process for dry desulfurization of flue gas (1984-01-24),

3. 4421732 - Process for dry desulfurization of flue gas (1983-12-20),

4. 4350670 - Process for treating flue gas (1982-09-21),

5. 4297319 - Apparatus for removing nitrogen oxides from flue gas (1981-10-27),

6. 4213944 - Process for removing nitrogen oxides from gas by ammonia (1980-07-22),

7. 4119702 - Process for abating concentration of nitrogen oxides in combustion flue (1978-10-10),

8. 4081509 - Method for removing nitrogen oxides from flue gas by absorption (1978-03-28),

9. 4031185 - Process for making nitrogen oxides contained in flue gas harmless (1977-06-21),

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

Title: Hidetoshi Akimoto: Innovator in Coal Processing Technologies

Introduction

Hidetoshi Akimoto is a prominent inventor based in Ibaraki, Japan, known for his significant contributions to coal processing technologies. With a total of 10 patents to his name, Akimoto has developed innovative methods that enhance the efficiency and environmental sustainability of coal utilization.

Latest Patents

Akimoto's latest patents include a process for removing ash from coal and a process for dry desulfurization of flue gas. The first patent describes a method where mineral impurities can be effectively removed from coal by introducing oil droplets into an aqueous slurry of pulverized coal. In this process, coal, which is lipophilic, attaches to the surface of the oil droplets and floats upwardly along with them, while mineral impurities, being hydrophilic, remain in the aqueous slurry. The second patent focuses on the dry desulfurization of flue gas, where sulfur oxides from coal-fired boilers are adsorbed by an adsorbent created through the dry distillation of fuel coal. This method produces semi-coke, which is then activated by steam, allowing for the desorption of sulfur oxides at high concentrations.

Career Highlights

Throughout his career, Hidetoshi Akimoto has worked with notable companies such as Hitachi, Ltd. and Babcock-Hitachi Kabushiki Kaisha. His work in these organizations has allowed him to develop and refine his innovative technologies, contributing to advancements in the field of coal processing.

Collaborations

Akimoto has collaborated with esteemed colleagues, including Yukio Hishinuma and Fumito Nakajima. These partnerships have fostered a collaborative environment that has led to the successful development of his patented technologies.

Conclusion

Hidetoshi Akimoto's contributions to coal processing technologies through his innovative patents demonstrate his commitment to improving efficiency and sustainability in the industry. His work continues to influence advancements in coal utilization and environmental protection.

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