Company Filing History:

10 out of 278

Hitachi Zosen Corporation

patents

4 out of 80

Hitachi Shipbuilding and Engineering Co., Ltd.

patents

1 out of 1

Mitsui Liquefied Gas Co., Ltd.

patent

4. 1 out of 63

Tohoku Electric Power Company, Inc.

patents

5. 1 out of 832,680

Other

patents

where one patent can have more than one assignee

Years Active: 1977-2010

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14 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7829740 - Process for production of lactic acid and equipment for the production (2010-11-09),

2. 6483006 - Method of decomposing organochlorine compound (2002-11-19),

3. 5862762 - Method and facility for refuse incineration using a fire-grate-type (1999-01-26),

4. 5749307 - Refuse incineration facility including material crusher and melt burner (1998-05-12),

5. 5597451 - Apparatus for thermally decomposing plastics and process for converting (1997-01-28),

6. 5586140 - Plasma melting method and plasma melting furnace (1996-12-17),

7. 5584969 - Apparatus for thermally decomposing plastics and process for converting (1996-12-17),

8. 5495948 - Ash melting furnace arrangement and method for supplying ash to ash (1996-03-05),

9. 5320050 - Ash melting furnace (1994-06-14),

10. 5313895 - Method of inhibiting formation of unburned substances in refuse (1994-05-24),

11. 4496306 - Multi-stage combustion method for inhibiting formation of nitrogen oxides (1985-01-29),

12. 4424017 - System and method for burning liquefied gases (1984-01-03),

13. 4395223 - Multi-stage combustion method for inhibiting formation of nitrogen oxides (1983-07-26),

14. 4065247 - Apparatus for incinerating waste gases (1977-12-27),

Title: Innovations of Yoshitoshi Sekiguchi

Introduction

Yoshitoshi Sekiguchi is a notable inventor from Maizuru, Japan, recognized for his contributions to the field of chemical engineering. He holds a total of 14 patents, showcasing his innovative spirit and dedication to advancing technology. His work primarily focuses on processes related to the production of lactic acid and the decomposition of organochlorine compounds.

Latest Patents

One of his latest patents is a process for the production of lactic acid. This process involves subjecting glycerin to a hydrothermal reaction under alkaline conditions at temperatures ranging from 150 to 400 degrees Celsius. The glycerin used can be derived from plant or animal fats, or it can be a chemically synthesized pure product. Another significant patent is a method for decomposing organochlorine compounds, such as dioxins. This method utilizes an aqueous alkali solution in the presence of a reducing agent or catalyst to effectively decompose harmful compounds.

Career Highlights

Throughout his career, Yoshitoshi Sekiguchi has worked with prominent companies, including Hitachi Zosen Corporation and Hitachi Shipbuilding and Engineering Co., Ltd. His experience in these organizations has contributed to his expertise in chemical processes and engineering.

Collaborations

He has collaborated with notable coworkers, including Noboru Okigami and Kunio Sasaki, further enhancing his innovative projects and research.

Conclusion

Yoshitoshi Sekiguchi's contributions to the field of chemical engineering through his patents and collaborations highlight his significant role as an inventor. His work continues to influence advancements in chemical processes and environmental safety.

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