Ken Kutaragi is a notable inventor hailing from Kitakyushu, Japan. He has made significant contributions to the field of materials engineering, particularly in the development of advanced steel rail technologies. With a total of 5 patents to his name, Kutaragi's work has had a lasting impact on railway infrastructure.

Latest Patents

One of Kutaragi's latest patents is focused on a pearlitic steel rail that exhibits excellent wear resistance. This invention aims to enhance the durability and damage resistance of rails used in sharply curved zones of heavy load railways. The steel composition includes more than 0.85 to 1.20% carbon, 0.10 to 1.00% silicon, and 0.40 to 1.50% manganese, along with optional elements such as chromium, molybdenum, vanadium, niobium, cobalt, and boron. The method of production involves accelerating the cooling of the head portion of the steel rail at a rate of 1° to 10° C./sec from an austenite zone temperature to a cooling stop temperature of 700° to 500° C. This process ensures that the hardness of the head portion reaches at least Hv 320 within a depth of 20 mm.

Career Highlights

Throughout his career, Ken Kutaragi has worked with prominent companies such as Nippon Steel Corporation. His expertise in materials science has allowed him to contribute to innovative solutions in the steel industry.

Collaborations

Kutaragi has collaborated with notable colleagues, including Koji Babazono and Masaharu Ueda. Their combined efforts have further advanced the field of steel technology.

Conclusion

Ken Kutaragi's contributions to the development of advanced steel rail technologies demonstrate his innovative spirit and dedication to improving railway infrastructure. His patents reflect a commitment to enhancing the performance and durability of materials used in critical applications.

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